Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old June 1st 07, 04:41 PM posted to rec.radio.shortwave
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 200
Default Sony 7600GR External Antenna Jack, Needs to be settled, Can it be shorted out to the point that it destroys the radio.

On Jun 1, 1:45 am, "Adam" wrote:
If you use a random wire in the Sony 7600GR radio and accidently short it,
can it destory the radio and/or cause damage or is it protected?

In the manual it says it has DC power but on at least two websites, it
supposely only has a "sense power" to turn antennas off and on.

I called sony customer support and they claim the jack doesn't have any DC
power in it, that it is only reception. This was said by two different
agents, but when I emailed them, they keep talking about the headphone jack
for some reason.

Will someone please settle this for me, it's like some are saying it can
short and at the same time, some are saying it can't at all. I just want to
have this darn thing settled.

Thanks in advanced.


Dear Adam,

This has been discussed many times both here and on the
http://groups.yahoo.com/group/7600GR/ group which I recommend to you
if you do not already belong.

You can attach ANY antenna to the Sony ICF-SW7600G or 'GR's antenna
jack without damaging the radio.

Period.

Of course, if the antenna is too elaborate or too long (supplies too
much signal), the set will overload. Iif you were to discharge static
electricity through the antenna, the radio could possibly be damaged
(this would apply to ANY antenna [and any receiver] and would even
apply to just touching the set in certain ways or areas while
"electrified," though such a situation would be quite rare). And
obviously you would not want to "accidentally" attach an AC adapter to
the antenna jack!

The small amount of DC voltage present at the jack is merely for
turning "on" and turning "off" the Sony AN-LP1 Active Loop Antenna.
The AN-LP1 is "on" whenever it is connected to the ICF-SW7600G/GR and
the radio is in "AM" mode. This is regardless of theposition of the AN-
LP1's own switch (used with this radio, the switch should be left in
its "off" position) or even whether the radio is tuned to the
shortwaves (where the antenna functions) or the MW/LW (where it does
not and, in fact, attenuates signals, and thus should be physically
disconnected when listening to those frequencies). It serves no other
function (it does not "power" the AN-LP1 antenna, regardless of what
has been written in PASSPORT and some other places) and does not
interfere with reception regardless of the antenna connected there. I
definitely know that a 60-foot long wire antenna (properly grounded
and protected) works very well with this radio. I have read that even
longer antennas can be successfully used but I personally cannot say
that this is so. I have used my Wellbrook ALA 330S with the Sony and
it works splendidly. And, of course, the AN-LP1 is a superb adjunct to
reception with this receiver. It is still available from dealers in
Japan and I strongly recommend it to all owners of the ICF-SW7600G/GR
radios.

Unfortunately, as you have discovered, people at Sony"s customer
"support" do not really know anything at all about shortwave radios
nor do they care. Contacting them is generally a waste of time.

However, as I stated, any reasonable antenna of any configuration can
be used with this receiver via its antenna jack

I hope this answers your question and is of help to anyone else
reading this.

Best,

Joe


  #2   Report Post  
Old June 1st 07, 05:01 PM posted to rec.radio.shortwave
Senior Member
 
First recorded activity by RadioBanter: Mar 2006
Posts: 111
Default Sony 7600GR External Antenna Jack, Needs to be settled, Can it be shorted out to the point that it destroys the radio.

On Jun 1, 10:41 am, Joe Analssandrini
wrote:
On Jun 1, 1:45 am, "Adam" wrote:





If you use a random wire in the Sony 7600GR radio and accidently short it,
can it destory the radio and/or cause damage or is it protected?


In the manual it says it has DC power but on at least two websites, it
supposely only has a "sense power" to turn antennas off and on.


I called sony customer support and they claim the jack doesn't have any DC
power in it, that it is only reception. This was said by two different
agents, but when I emailed them, they keep talking about the headphone jack
for some reason.


Will someone please settle this for me, it's like some are saying it can
short and at the same time, some are saying it can't at all. I just want to
have this darn thing settled.


Thanks in advanced.


Dear Adam,

This has been discussed many times both here and on the http://groups.yahoo.com/group/7600GR/ group which I recommend to you
if you do not already belong.

You can attach ANY antenna to the Sony ICF-SW7600G or 'GR's antenna
jack without damaging the radio.

Period.

Of course, if the antenna is too elaborate or too long (supplies too
much signal), the set will overload. Iif you were to discharge static
electricity through the antenna, the radio could possibly be damaged
(this would apply to ANY antenna [and any receiver] and would even
apply to just touching the set in certain ways or areas while
"electrified," though such a situation would be quite rare). And
obviously you would not want to "accidentally" attach an AC adapter to
the antenna jack!

The small amount of DC voltage present at the jack is merely for
turning "on" and turning "off" the Sony AN-LP1 Active Loop Antenna.
The AN-LP1 is "on" whenever it is connected to the ICF-SW7600G/GR and
the radio is in "AM" mode. This is regardless of theposition of the AN-
LP1's own switch (used with this radio, the switch should be left in
its "off" position) or even whether the radio is tuned to the
shortwaves (where the antenna functions) or the MW/LW (where it does
not and, in fact, attenuates signals, and thus should be physically
disconnected when listening to those frequencies). It serves no other
function (it does not "power" the AN-LP1 antenna, regardless of what
has been written in PASSPORT and some other places) and does not
interfere with reception regardless of the antenna connected there. I
definitely know that a 60-foot long wire antenna (properly grounded
and protected) works very well with this radio. I have read that even
longer antennas can be successfully used but I personally cannot say
that this is so. I have used my Wellbrook ALA 330S with the Sony and
it works splendidly. And, of course, the AN-LP1 is a superb adjunct to
reception with this receiver. It is still available from dealers in
Japan and I strongly recommend it to all owners of the ICF-SW7600G/GR
radios.

Unfortunately, as you have discovered, people at Sony"s customer
"support" do not really know anything at all about shortwave radios
nor do they care. Contacting them is generally a waste of time.

However, as I stated, any reasonable antenna of any configuration can
be used with this receiver via its antenna jack

I hope this answers your question and is of help to anyone else
reading this.

Best,

Joe- Hide quoted text -

- Show quoted text -


Thanks for this, Mr. Alessandrini.

  #3   Report Post  
Old June 1st 07, 07:05 PM posted to rec.radio.shortwave
external usenet poster
 
First recorded activity by RadioBanter: Jun 2007
Posts: 786
Default Sony 7600GR External Antenna Jack, Needs to be settled, Can it be shorted out to the point that it destroys the radio.

Joe,

Actually, my 7600G DOES power the AN-LP1. I'm listening to it right
now with a set of dead batteries in the AN-LP1. The dead batteries
don't have enough voltage to even turn the AN-LP1's red light on. As
we've discussed this before in the 7600GR Yahoo Group, I can only
assume that you continue to disbelieve me. Please take the challenge I
extended to you by taking one of your 7600Gs out of storage and try it
with totally discharged batteries in the AN-LP1.

I will admit that the GR model does not power the antenna, but I've
been using a G model for quite awhile.

I think Passport wasn't aware of this slight change between the G and
GR models. It may also explain the confusion from Sony service people.

Before you once again assume that I don't know what I'm talking about,
please take out one of your 7600G's and give it a try.

Mike


On Jun 1, 10:41?am, Joe Analssandrini
wrote:
On Jun 1, 1:45 am, "Adam" wrote:





If you use a random wire in the Sony 7600GR radio and accidently short it,
can it destory the radio and/or cause damage or is it protected?


In the manual it says it has DC power but on at least two websites, it
supposely only has a "sense power" to turn antennas off and on.


I called sony customer support and they claim the jack doesn't have any DC
power in it, that it is only reception. This was said by two different
agents, but when I emailed them, they keep talking about the headphone jack
for some reason.


Will someone please settle this for me, it's like some are saying it can
short and at the same time, some are saying it can't at all. I just want to
have this darn thing settled.


Thanks in advanced.


Dear Adam,

This has been discussed many times both here and on the http://groups.yahoo.com/group/7600GR/ group which I recommend to you
if you do not already belong.

You can attach ANY antenna to the Sony ICF-SW7600G or 'GR's antenna
jack without damaging the radio.

Period.

Of course, if the antenna is too elaborate or too long (supplies too
much signal), the set will overload. Iif you were to discharge static
electricity through the antenna, the radio could possibly be damaged
(this would apply to ANY antenna [and any receiver] and would even
apply to just touching the set in certain ways or areas while
"electrified," though such a situation would be quite rare). And
obviously you would not want to "accidentally" attach an AC adapter to
the antenna jack!

The small amount of DC voltage present at the jack is merely for
turning "on" and turning "off" the Sony AN-LP1 Active Loop Antenna.
The AN-LP1 is "on" whenever it is connected to the ICF-SW7600G/GR and
the radio is in "AM" mode. This is regardless of theposition of the AN-
LP1's own switch (used with this radio, the switch should be left in
its "off" position) or even whether the radio is tuned to the
shortwaves (where the antenna functions) or the MW/LW (where it does
not and, in fact, attenuates signals, and thus should be physically
disconnected when listening to those frequencies). It serves no other
function (it does not "power" the AN-LP1 antenna, regardless of what
has been written in PASSPORT and some other places) and does not
interfere with reception regardless of the antenna connected there. I
definitely know that a 60-foot long wire antenna (properly grounded
and protected) works very well with this radio. I have read that even
longer antennas can be successfully used but I personally cannot say
that this is so. I have used my Wellbrook ALA 330S with the Sony and
it works splendidly. And, of course, the AN-LP1 is a superb adjunct to
reception with this receiver. It is still available from dealers in
Japan and I strongly recommend it to all owners of the ICF-SW7600G/GR
radios.

Unfortunately, as you have discovered, people at Sony"s customer
"support" do not really know anything at all about shortwave radios
nor do they care. Contacting them is generally a waste of time.

However, as I stated, any reasonable antenna of any configuration can
be used with this receiver via its antenna jack

I hope this answers your question and is of help to anyone else
reading this.

Best,

Joe- Hide quoted text -

- Show quoted text -



  #4   Report Post  
Old June 1st 07, 09:38 PM posted to rec.radio.shortwave
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 200
Default Sony 7600GR External Antenna Jack, Needs to be settled, Can it be shorted out to the point that it destroys the radio.

On Jun 1, 1:05 pm, Mike wrote:
Joe,

Actually, my 7600G DOES power the AN-LP1. I'm listening to it right
now with a set of dead batteries in the AN-LP1. The dead batteries
don't have enough voltage to even turn the AN-LP1's red light on. As
we've discussed this before in the 7600GR Yahoo Group, I can only
assume that you continue to disbelieve me. Please take the challenge I
extended to you by taking one of your 7600Gs out of storage and try it
with totally discharged batteries in the AN-LP1.

I will admit that the GR model does not power the antenna, but I've
been using a G model for quite awhile.

I think Passport wasn't aware of this slight change between the G and
GR models. It may also explain the confusion from Sony service people.

Before you once again assume that I don't know what I'm talking about,
please take out one of your 7600G's and give it a try.

Mike

On Jun 1, 10:41?am, Joe Analssandrini
wrote:

On Jun 1, 1:45 am, "Adam" wrote:


If you use a random wire in the Sony 7600GR radio and accidently short it,
can it destory the radio and/or cause damage or is it protected?


In the manual it says it has DC power but on at least two websites, it
supposely only has a "sense power" to turn antennas off and on.


I called sony customer support and they claim the jack doesn't have any DC
power in it, that it is only reception. This was said by two different
agents, but when I emailed them, they keep talking about the headphone jack
for some reason.


Will someone please settle this for me, it's like some are saying it can
short and at the same time, some are saying it can't at all. I just want to
have this darn thing settled.


Thanks in advanced.


Dear Adam,


This has been discussed many times both here and on the http://groups.yahoo.com/group/7600GR/ group which I recommend to you
if you do not already belong.


You can attach ANY antenna to the Sony ICF-SW7600G or 'GR's antenna
jack without damaging the radio.


Period.


Of course, if the antenna is too elaborate or too long (supplies too
much signal), the set will overload. Iif you were to discharge static
electricity through the antenna, the radio could possibly be damaged
(this would apply to ANY antenna [and any receiver] and would even
apply to just touching the set in certain ways or areas while
"electrified," though such a situation would be quite rare). And
obviously you would not want to "accidentally" attach an AC adapter to
the antenna jack!


The small amount of DC voltage present at the jack is merely for
turning "on" and turning "off" the Sony AN-LP1 Active Loop Antenna.
The AN-LP1 is "on" whenever it is connected to the ICF-SW7600G/GR and
the radio is in "AM" mode. This is regardless of theposition of the AN-
LP1's own switch (used with this radio, the switch should be left in
its "off" position) or even whether the radio is tuned to the
shortwaves (where the antenna functions) or the MW/LW (where it does
not and, in fact, attenuates signals, and thus should be physically
disconnected when listening to those frequencies). It serves no other
function (it does not "power" the AN-LP1 antenna, regardless of what
has been written in PASSPORT and some other places) and does not
interfere with reception regardless of the antenna connected there. I
definitely know that a 60-foot long wire antenna (properly grounded
and protected) works very well with this radio. I have read that even
longer antennas can be successfully used but I personally cannot say
that this is so. I have used my Wellbrook ALA 330S with the Sony and
it works splendidly. And, of course, the AN-LP1 is a superb adjunct to
reception with this receiver. It is still available from dealers in
Japan and I strongly recommend it to all owners of the ICF-SW7600G/GR
radios.


Unfortunately, as you have discovered, people at Sony"s customer
"support" do not really know anything at all about shortwave radios
nor do they care. Contacting them is generally a waste of time.


However, as I stated, any reasonable antenna of any configuration can
be used with this receiver via its antenna jack


I hope this answers your question and is of help to anyone else
reading this.


Best,


Joe- Hide quoted text -


- Show quoted text -


Dear Mike,

As I explained to you previously - yes, the antenna works with dead or
no batteries - AS A PASSIVE LOOP. With the antenna in active mode,
using good internal batteries, all signals will be much stronger. They
are being amplified. This is not quite as noticeable with very strong
signals (where the antenna, in passive mode, certainly works fairly
well) but it is surely VERY noticeable with moderate or weak signals.
(The relative signal strength increase on strong signals is not as
noticeable because the radio's automatic volume control keeps levels
as constant as possible.)

While operating the antenna with dead or no batteries, try changing
the frequency selector. No matter the frequency to which you are
listening, the signal will be of the same strength. The selector has
no effect. This is true unless the antenna is in fact powered by its
own internal (good) batteries and the red LED is on, showing that the
antenna is functioning in active mode. If the red LED is NOT on, the
antenna is NOT properly functioning as an active (powered) antenna.
The radio itself, whether 'G or 'GR model, does NOT supply operating
power to the AN-LP1 antenna. It merely turns the antenna "on" or
"off." (This applies only to the AN-LP1 antenna.)

Of course, when using this antenna as an active antenna (the way it
was designed to operate), the signal strength of a given frequency
will change as you change the selector. (If, for example, you are
listening to Deutsche Welle on 15205 kHz later this afternoon, and,
with your antenna powered with good batteries, you will notice that
the signal is markedly stronger when the selector is in the 14 or 16
position. Changing to, say, the 4 or 5 position will noticeably
attenuate the signal. With dead or no batteries there will be no
difference in signal strength whatsoever and the signal strength, in
active mode, should be much stronger.) You can also try this
experiment with Radio Australia (15515 kHz) or Radio New Zealand
International (13730) around 0300 UTC tonight or, even better, RAE
11711 kHz, if it is coming in at all, at 0200 UTC.

Your antenna is NOT being powered by the radio. It is not functioning
as an active antenna. In order to function properly, it MUST have good
batteries inserted. (And I did try this with one of my 'G models
recently. Both the 'G and the 'GR models behave exactly the same in
this situation.)

Best,

Joe

  #5   Report Post  
Old June 1st 07, 10:17 PM posted to rec.radio.shortwave
external usenet poster
 
First recorded activity by RadioBanter: Jun 2007
Posts: 786
Default Sony 7600GR External Antenna Jack, Needs to be settled, Can it be shorted out to the point that it destroys the radio.

Joe,

Then why does the red light on the AN-LP1 come on when it's attached
to the 7600G, even when there are dead batteries in the AN-LP1?

And, yes, I tried your test: When I change the frequency selector on
the AN-LP1 (with dead batteries), it definitely DOES impact the
strength of the signal I'm listening to on the 7600G.

Further test: I have two AN-LP1s. No difference in operation between
the one with dead batteries and the one with live batteries. Signals
sound the same. Signals vary when I change the frequency selector on
both AN-LP1s.

Sorry. I'm going to trust my own experience and what's written in
Passport over your definitive "expertise".

Another thing: None of your 7600G/GRs sound any different on upper/
lower sync? I have to tell you that every 7600G and GR I've listened
to (probably over 10) had at least some difference in audio between
upper and lower sync. You claim none of your massive collection do. Is
this another time when Passport was as out of it as you seem to think
I am?

Got any more tests you want me to try?

Mike

On Jun 1, 3:38�pm, Joe Analssandrini wrote:
On Jun 1, 1:05 pm, Mike wrote:





Joe,


Actually, my 7600G DOES power the AN-LP1. I'm listening to it right
now with a set of dead batteries in the AN-LP1. The dead batteries
don't have enough voltage to even turn the AN-LP1's red light on. As
we've discussed this before in the 7600GR Yahoo Group, I can only
assume that you continue to disbelieve me. Please take the challenge I
extended to you by taking one of your 7600Gs out of storage and try it
with totally discharged batteries in the AN-LP1.


I will admit that the GR model does not power the antenna, but I've
been using a G model for quite awhile.


I think Passport wasn't aware of this slight change between the G and
GR models. It may also explain the confusion from Sony service people.


Before you once again assume that I don't know what I'm talking about,
please take out one of your 7600G's and give it a try.


Mike


On Jun 1, 10:41?am, Joe Analssandrini
wrote:


On Jun 1, 1:45 am, "Adam" wrote:


If you use a random wire in the Sony 7600GR radio and accidently short it,
can it destory the radio and/or cause damage or is it protected?


In the manual it says it has DC power but on at least two websites, it
supposely only has a "sense power" to turn antennas off and on.


I called sony customer support and they claim the jack doesn't have any DC
power in it, that it is only reception. This was said by two different
agents, but when I emailed them, they keep talking about the headphone jack
for some reason.


Will someone please settle this for me, it's like some are saying it can
short and at the same time, some are saying it can't at all. I just want to
have this darn thing settled.


Thanks in advanced.


Dear Adam,


This has been discussed many times both here and on the http://groups.yahoo.com/group/7600GR/ group which I recommend to you
if you do not already belong.


You can attach ANY antenna to the Sony ICF-SW7600G or 'GR's antenna
jack without damaging the radio.


Period.


Of course, if the antenna is too elaborate or too long (supplies too
much signal), the set will overload. Iif you were to discharge static
electricity through the antenna, the radio could possibly be damaged
(this would apply to ANY antenna [and any receiver] and would even
apply to just touching the set in certain ways or areas while
"electrified," though such a situation would be quite rare). And
obviously you would not want to "accidentally" attach an AC adapter to
the antenna jack!


The small amount of DC voltage present at the jack is merely for
turning "on" and turning "off" the Sony AN-LP1 Active Loop Antenna.
The AN-LP1 is "on" whenever it is connected to the ICF-SW7600G/GR and
the radio is in "AM" mode. This is regardless of theposition of the AN-
LP1's own switch (used with this radio, the switch should be left in
its "off" position) or even whether the radio is tuned to the
shortwaves (where the antenna functions) or the MW/LW (where it does
not and, in fact, attenuates signals, and thus should be physically
disconnected when listening to those frequencies). It serves no other
function (it does not "power" the AN-LP1 antenna, regardless of what
has been written in PASSPORT and some other places) and does not
interfere with reception regardless of the antenna connected there. I
definitely know that a 60-foot long wire antenna (properly grounded
and protected) works very well with this radio. I have read that even
longer antennas can be successfully used but I personally cannot say
that this is so. I have used my Wellbrook ALA 330S with the Sony and
it works splendidly. And, of course, the AN-LP1 is a superb adjunct to
reception with this receiver. It is still available from dealers in
Japan and I strongly recommend it to all owners of the ICF-SW7600G/GR
radios.


Unfortunately, as you have discovered, people at Sony"s customer
"support" do not really know anything at all about shortwave radios
nor do they care. Contacting them is generally a waste of time.


However, as I stated, any reasonable antenna of any configuration can
be used with this receiver via its antenna jack


I hope this answers your question and is of help to anyone else
reading this.


Best,


Joe- Hide quoted text -


- Show quoted text -


Dear Mike,

As I explained to you previously - yes, the antenna works with dead or
no batteries - AS A PASSIVE LOOP. With the antenna in active mode,
using good internal batteries, all signals will be much stronger. They
are being amplified. This is not quite as noticeable with very strong
signals (where the antenna, in passive mode, certainly works fairly
well) but it is surely VERY noticeable with moderate or weak signals.
(The relative signal strength increase on strong signals is not as
noticeable because the radio's automatic volume control keeps levels
as constant as possible.)

While operating the antenna with dead or no batteries, try changing
the frequency selector. No matter the frequency to which you are
listening, the signal will be of the same strength. The selector has
no effect. This is true unless the antenna is in fact powered by its
own internal (good) batteries and the red LED is on, showing that the
antenna is functioning in active mode. If the red LED is NOT on, the
antenna is NOT properly functioning as an active (powered) antenna.
The radio itself, whether 'G or 'GR model, does NOT supply operating
power to the AN-LP1 antenna. It merely turns the antenna "on" or
"off." (This applies only to the AN-LP1 antenna.)

Of course, when using this antenna as an active antenna (the way it
was designed to operate), the signal strength of a given frequency
will change as you change the selector. (If, for example, you are
listening to Deutsche Welle on 15205 kHz later this afternoon, and,
with your antenna powered with good batteries, you will notice that
the signal is markedly stronger when the selector is in the 14 or 16
position. Changing to, say, the 4 or 5 position will noticeably
attenuate the signal. With dead or no batteries there will be no
difference in signal strength whatsoever and the signal strength, in
active mode, should be much stronger.) *You can also try this
experiment with Radio Australia (15515 kHz) or Radio New Zealand
International (13730) around 0300 UTC tonight or, even better, RAE
11711 kHz, if it is coming in at all, at 0200 UTC.

Your antenna is NOT being powered by the radio. It is not functioning
as an active antenna. In order to function properly, it MUST have good
batteries inserted. (And I did try this with one of my 'G models
recently. Both the 'G and the 'GR models behave exactly the same in
this situation.)

Best,

Joe- Hide quoted text -

- Show quoted text -





  #6   Report Post  
Old June 2nd 07, 09:02 AM posted to rec.radio.shortwave
RHF RHF is offline
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 8,652
Default Sony 7600GR External Antenna Jack, Needs to be settled, Can it be shorted out to the point that it destroys the radio.

On Jun 1, 7:41 am, Joe Analssandrini wrote:
On Jun 1, 1:45 am, "Adam" wrote:





If you use a random wire in the Sony 7600GR radio and accidently short it,
can it destory the radio and/or cause damage or is it protected?


In the manual it says it has DC power but on at least two websites, it
supposely only has a "sense power" to turn antennas off and on.


I called sony customer support and they claim the jack doesn't have any DC
power in it, that it is only reception. This was said by two different
agents, but when I emailed them, they keep talking about the headphone jack
for some reason.


Will someone please settle this for me, it's like some are saying it can
short and at the same time, some are saying it can't at all. I just want to
have this darn thing settled.


Thanks in advanced.


Dear Adam,

This has been discussed many times both here and on the http://groups.yahoo.com/group/7600GR/ group which I recommend to you
if you do not already belong.

You can attach ANY antenna to the Sony ICF-SW7600G or 'GR's antenna
jack without damaging the radio.

Period.

Of course, if the antenna is too elaborate or too long (supplies too
much signal), the set will overload. Iif you were to discharge static
electricity through the antenna, the radio could possibly be damaged
(this would apply to ANY antenna [and any receiver] and would even
apply to just touching the set in certain ways or areas while
"electrified," though such a situation would be quite rare). And
obviously you would not want to "accidentally" attach an AC adapter to
the antenna jack!

The small amount of DC voltage present at the jack is merely for
turning "on" and turning "off" the Sony AN-LP1 Active Loop Antenna.
The AN-LP1 is "on" whenever it is connected to the ICF-SW7600G/GR and
the radio is in "AM" mode. This is regardless of theposition of the AN-
LP1's own switch (used with this radio, the switch should be left in
its "off" position)


The Radio via the Jack 'works' as a Parallel Power Switch.

or even whether the radio is tuned to the
shortwaves (where the antenna functions) or the MW/LW (where it does
not and, in fact, attenuates signals, and thus should be physically
disconnected when listening to those frequencies). It serves no other
function (it does not "power" the AN-LP1 antenna, regardless of what
has been written in PASSPORT and some other places) and does not
interfere with reception regardless of the antenna connected there. I
definitely know that a 60-foot long wire antenna (properly grounded
and protected) works very well with this radio. I have read that even
longer antennas can be successfully used but I personally cannot say
that this is so. I have used my Wellbrook ALA 330S with the Sony and
it works splendidly. And, of course, the AN-LP1 is a superb adjunct to
reception with this receiver. It is still available from dealers in
Japan and I strongly recommend it to all owners of the ICF-SW7600G/GR
radios.

Unfortunately, as you have discovered, people at Sony"s customer
"support" do not really know anything at all about shortwave radios
nor do they care. Contacting them is generally a waste of time.

However, as I stated, any reasonable antenna of any configuration can
be used with this receiver via its antenna jack

I hope this answers your question and is of help to anyone else
reading this.

Best,

Joe- Hide quoted text -

- Show quoted text -


JA - Thank You for a Definitive Answer
Clearly You Know Jack ) ~ RHF
  #7   Report Post  
Old June 2nd 07, 03:29 PM posted to rec.radio.shortwave
Senior Member
 
First recorded activity by RadioBanter: Mar 2006
Posts: 111
Default Sony 7600GR External Antenna Jack, Needs to be settled, Can it be shorted out to the point that it destroys the radio.

On Jun 1, 4:17 pm, Mike wrote:
Joe,

Then why does the red light on the AN-LP1 come on when it's attached
to the 7600G, even when there are dead batteries in the AN-LP1?

And, yes, I tried your test: When I change the frequency selector on
the AN-LP1 (with dead batteries), it definitely DOES impact the
strength of the signal I'm listening to on the 7600G.

Further test: I have two AN-LP1s. No difference in operation between
the one with dead batteries and the one with live batteries. Signals
sound the same. Signals vary when I change the frequency selector on
both AN-LP1s.

Sorry. I'm going to trust my own experience and what's written in
Passport over your definitive "expertise".

Another thing: None of your 7600G/GRs sound any different on upper/
lower sync? I have to tell you that every 7600G and GR I've listened
to (probably over 10) had at least some difference in audio between
upper and lower sync. You claim none of your massive collection do. Is
this another time when Passport was as out of it as you seem to think
I am?

Got any more tests you want me to try?

Mike

On Jun 1, 3:38?pm, Joe Analssandrini wrote:



On Jun 1, 1:05 pm, Mike wrote:


Joe,


Actually, my 7600G DOES power the AN-LP1. I'm listening to it right
now with a set of dead batteries in the AN-LP1. The dead batteries
don't have enough voltage to even turn the AN-LP1's red light on. As
we've discussed this before in the 7600GR Yahoo Group, I can only
assume that you continue to disbelieve me. Please take the challenge I
extended to you by taking one of your 7600Gs out of storage and try it
with totally discharged batteries in the AN-LP1.


I will admit that the GR model does not power the antenna, but I've
been using a G model for quite awhile.


I think Passport wasn't aware of this slight change between the G and
GR models. It may also explain the confusion from Sony service people.


Before you once again assume that I don't know what I'm talking about,
please take out one of your 7600G's and give it a try.


Mike


On Jun 1, 10:41?am, Joe Analssandrini
wrote:


On Jun 1, 1:45 am, "Adam" wrote:


If you use a random wire in the Sony 7600GR radio and accidently short it,
can it destory the radio and/or cause damage or is it protected?


In the manual it says it has DC power but on at least two websites, it
supposely only has a "sense power" to turn antennas off and on.


I called sony customer support and they claim the jack doesn't have any DC
power in it, that it is only reception. This was said by two different
agents, but when I emailed them, they keep talking about the headphone jack
for some reason.


Will someone please settle this for me, it's like some are saying it can
short and at the same time, some are saying it can't at all. I just want to
have this darn thing settled.


Thanks in advanced.


Dear Adam,


This has been discussed many times both here and on the http://groups.yahoo.com/group/7600GR/ group which I recommend to you
if you do not already belong.


You can attach ANY antenna to the Sony ICF-SW7600G or 'GR's antenna
jack without damaging the radio.


Period.


Of course, if the antenna is too elaborate or too long (supplies too
much signal), the set will overload. Iif you were to discharge static
electricity through the antenna, the radio could possibly be damaged
(this would apply to ANY antenna [and any receiver] and would even
apply to just touching the set in certain ways or areas while
"electrified," though such a situation would be quite rare). And
obviously you would not want to "accidentally" attach an AC adapter to
the antenna jack!


The small amount of DC voltage present at the jack is merely for
turning "on" and turning "off" the Sony AN-LP1 Active Loop Antenna.
The AN-LP1 is "on" whenever it is connected to the ICF-SW7600G/GR and
the radio is in "AM" mode. This is regardless of theposition of the AN-
LP1's own switch (used with this radio, the switch should be left in
its "off" position) or even whether the radio is tuned to the
shortwaves (where the antenna functions) or the MW/LW (where it does
not and, in fact, attenuates signals, and thus should be physically
disconnected when listening to those frequencies). It serves no other
function (it does not "power" the AN-LP1 antenna, regardless of what
has been written in PASSPORT and some other places) and does not
interfere with reception regardless of the antenna connected there. I
definitely know that a 60-foot long wire antenna (properly grounded
and protected) works very well with this radio. I have read that even
longer antennas can be successfully used but I personally cannot say
that this is so. I have used my Wellbrook ALA 330S with the Sony and
it works splendidly. And, of course, the AN-LP1 is a superb adjunct to
reception with this receiver. It is still available from dealers in
Japan and I strongly recommend it to all owners of the ICF-SW7600G/GR
radios.


Unfortunately, as you have discovered, people at Sony"s customer
"support" do not really know anything at all about shortwave radios
nor do they care. Contacting them is generally a waste of time.


However, as I stated, any reasonable antenna of any configuration can
be used with this receiver via its antenna jack


I hope this answers your question and is of help to anyone else
reading this.


Best,


Joe- Hide quoted text -


- Show quoted text -


Dear Mike,


As I explained to you previously - yes, the antenna works with dead or
no batteries - AS A PASSIVE LOOP. With the antenna in active mode,
using good internal batteries, all signals will be much stronger. They
are being amplified. This is not quite as noticeable with very strong
signals (where the antenna, in passive mode, certainly works fairly
well) but it is surely VERY noticeable with moderate or weak signals.
(The relative signal strength increase on strong signals is not as
noticeable because the radio's automatic volume control keeps levels
as constant as possible.)


While operating the antenna with dead or no batteries, try changing
the frequency selector. No matter the frequency to which you are
listening, the signal will be of the same strength. The selector has
no effect. This is true unless the antenna is in fact powered by its
own internal (good) batteries and the red LED is on, showing that the
antenna is functioning in active mode. If the red LED is NOT on, the
antenna is NOT properly functioning as an active (powered) antenna.
The radio itself, whether 'G or 'GR model, does NOT supply operating
power to the AN-LP1 antenna. It merely turns the antenna "on" or
"off." (This applies only to the AN-LP1 antenna.)


Of course, when using this antenna as an active antenna (the way it
was designed to operate), the signal strength of a given frequency
will change as you change the selector. (If, for example, you are
listening to Deutsche Welle on 15205 kHz later this afternoon, and,
with your antenna powered with good batteries, you will notice that
the signal is markedly stronger when the selector is in the 14 or 16
position. Changing to, say, the 4 or 5 position will noticeably
attenuate the signal. With dead or no batteries there will be no
difference in signal strength whatsoever and the signal strength, in
active mode, should be much stronger.) ?You can also try this
experiment with Radio Australia (15515 kHz) or Radio New Zealand
International (13730) around 0300 UTC tonight or, even better, RAE
11711 kHz, if it is coming in at all, at 0200 UTC.


Your antenna is NOT being powered by the radio. It is not functioning
as an active antenna. In order to function properly, it MUST have good
batteries inserted. (And I did try this with one of my 'G models
recently. Both the 'G and the 'GR models behave exactly the same in
this situation.)


Best,


Joe- Hide quoted text -


- Show quoted text -- Hide quoted text -


- Show quoted text -


Enthusiasts/users of the '7600G and GR would be advised to bookmark
the following page:

http://stephan.win31.de/sony76-1.htm

Play nice now, little ones...

Junius

  #8   Report Post  
Old June 3rd 07, 03:48 AM posted to rec.radio.shortwave
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 200
Default Sony 7600GR External Antenna Jack, Needs to be settled, Can it be shorted out to the point that it destroys the radio.

On Jun 1, 4:17 pm, Mike wrote:
Joe,

Then why does the red light on the AN-LP1 come on when it's attached
to the 7600G, even when there are dead batteries in the AN-LP1?

And, yes, I tried your test: When I change the frequency selector on
the AN-LP1 (with dead batteries), it definitely DOES impact the
strength of the signal I'm listening to on the 7600G.

Further test: I have two AN-LP1s. No difference in operation between
the one with dead batteries and the one with live batteries. Signals
sound the same. Signals vary when I change the frequency selector on
both AN-LP1s.

Sorry. I'm going to trust my own experience and what's written in
Passport over your definitive "expertise".

Another thing: None of your 7600G/GRs sound any different on upper/
lower sync? I have to tell you that every 7600G and GR I've listened
to (probably over 10) had at least some difference in audio between
upper and lower sync. You claim none of your massive collection do. Is
this another time when Passport was as out of it as you seem to think
I am?

Got any more tests you want me to try?

Mike

On Jun 1, 3:38?pm, Joe Analssandrini wrote:

On Jun 1, 1:05 pm, Mike wrote:


Joe,


Actually, my 7600G DOES power the AN-LP1. I'm listening to it right
now with a set of dead batteries in the AN-LP1. The dead batteries
don't have enough voltage to even turn the AN-LP1's red light on. As
we've discussed this before in the 7600GR Yahoo Group, I can only
assume that you continue to disbelieve me. Please take the challenge I
extended to you by taking one of your 7600Gs out of storage and try it
with totally discharged batteries in the AN-LP1.


I will admit that the GR model does not power the antenna, but I've
been using a G model for quite awhile.


I think Passport wasn't aware of this slight change between the G and
GR models. It may also explain the confusion from Sony service people.


Before you once again assume that I don't know what I'm talking about,
please take out one of your 7600G's and give it a try.


Mike


On Jun 1, 10:41?am, Joe Analssandrini
wrote:


On Jun 1, 1:45 am, "Adam" wrote:


If you use a random wire in the Sony 7600GR radio and accidently short it,
can it destory the radio and/or cause damage or is it protected?


In the manual it says it has DC power but on at least two websites, it
supposely only has a "sense power" to turn antennas off and on.


I called sony customer support and they claim the jack doesn't have any DC
power in it, that it is only reception. This was said by two different
agents, but when I emailed them, they keep talking about the headphone jack
for some reason.


Will someone please settle this for me, it's like some are saying it can
short and at the same time, some are saying it can't at all. I just want to
have this darn thing settled.


Thanks in advanced.


Dear Adam,


This has been discussed many times both here and on the http://groups.yahoo.com/group/7600GR/ group which I recommend to you
if you do not already belong.


You can attach ANY antenna to the Sony ICF-SW7600G or 'GR's antenna
jack without damaging the radio.


Period.


Of course, if the antenna is too elaborate or too long (supplies too
much signal), the set will overload. Iif you were to discharge static
electricity through the antenna, the radio could possibly be damaged
(this would apply to ANY antenna [and any receiver] and would even
apply to just touching the set in certain ways or areas while
"electrified," though such a situation would be quite rare). And
obviously you would not want to "accidentally" attach an AC adapter to
the antenna jack!


The small amount of DC voltage present at the jack is merely for
turning "on" and turning "off" the Sony AN-LP1 Active Loop Antenna.
The AN-LP1 is "on" whenever it is connected to the ICF-SW7600G/GR and
the radio is in "AM" mode. This is regardless of theposition of the AN-
LP1's own switch (used with this radio, the switch should be left in
its "off" position) or even whether the radio is tuned to the
shortwaves (where the antenna functions) or the MW/LW (where it does
not and, in fact, attenuates signals, and thus should be physically
disconnected when listening to those frequencies). It serves no other
function (it does not "power" the AN-LP1 antenna, regardless of what
has been written in PASSPORT and some other places) and does not
interfere with reception regardless of the antenna connected there. I
definitely know that a 60-foot long wire antenna (properly grounded
and protected) works very well with this radio. I have read that even
longer antennas can be successfully used but I personally cannot say
that this is so. I have used my Wellbrook ALA 330S with the Sony and
it works splendidly. And, of course, the AN-LP1 is a superb adjunct to
reception with this receiver. It is still available from dealers in
Japan and I strongly recommend it to all owners of the ICF-SW7600G/GR
radios.


Unfortunately, as you have discovered, people at Sony"s customer
"support" do not really know anything at all about shortwave radios
nor do they care. Contacting them is generally a waste of time.


However, as I stated, any reasonable antenna of any configuration can
be used with this receiver via its antenna jack


I hope this answers your question and is of help to anyone else
reading this.


Best,


Joe- Hide quoted text -


- Show quoted text -


Dear Mike,


As I explained to you previously - yes, the antenna works with dead or
no batteries - AS A PASSIVE LOOP. With the antenna in active mode,
using good internal batteries, all signals will be much stronger. They
are being amplified. This is not quite as noticeable with very strong
signals (where the antenna, in passive mode, certainly works fairly
well) but it is surely VERY noticeable with moderate or weak signals.
(The relative signal strength increase on strong signals is not as
noticeable because the radio's automatic volume control keeps levels
as constant as possible.)


While operating the antenna with dead or no batteries, try changing
the frequency selector. No matter the frequency to which you are
listening, the signal will be of the same strength. The selector has
no effect. This is true unless the antenna is in fact powered by its
own internal (good) batteries and the red LED is on, showing that the
antenna is functioning in active mode. If the red LED is NOT on, the
antenna is NOT properly functioning as an active (powered) antenna.
The radio itself, whether 'G or 'GR model, does NOT supply operating
power to the AN-LP1 antenna. It merely turns the antenna "on" or
"off." (This applies only to the AN-LP1 antenna.)


Of course, when using this antenna as an active antenna (the way it
was designed to operate), the signal strength of a given frequency
will change as you change the selector. (If, for example, you are
listening to Deutsche Welle on 15205 kHz later this afternoon, and,
with your antenna powered with good batteries, you will notice that
the signal is markedly stronger when the selector is in the 14 or 16
position. Changing to, say, the 4 or 5 position will noticeably
attenuate the signal. With dead or no batteries there will be no
difference in signal strength whatsoever and the signal strength, in
active mode, should be much stronger.) ?You can also try this
experiment with Radio Australia (15515 kHz) or Radio New Zealand
International (13730) around 0300 UTC tonight or, even better, RAE
11711 kHz, if it is coming in at all, at 0200 UTC.


Your antenna is NOT being powered by the radio. It is not functioning
as an active antenna. In order to function properly, it MUST have good
batteries inserted. (And I did try this with one of my 'G models
recently. Both the 'G and the 'GR models behave exactly the same in
this situation.)


Best,


Joe- Hide quoted text -


- Show quoted text -


Mike,

About two or three weeks after our last discussion on this subject
ended, I had occasion to go down into my crawlspace to get some things
for my wife. While I was down there, remembering our discussion, I
brought out one of my Sony ICF-SW7600Gs. It was Serial No. 208903 and
I bought it in March of 1998.

I installed four fresh Ray-O-Vac AA batteries (labeled DEC 2013) and
REMOVED the batteries from one of my AN-LP1 antennas.

What I expected to happen did in fact happen. THE ANTENNA FUNCTIONED
IN PASSIVE MODE. THE RED LED DID NOT GO ON. THE SELECTOR KNOB HAD NO
EFFECT.

I have to tell you and all others here that I felt like a complete
fool for even trying this because I knew already that the radio does
not send sufficient power through its antenna jack to "power" the AN-
LP1 and is, in fact, not meant to do so. This whole thing started in
the pages of PASSPORT which reported (and still says) this in terms
that would suggest that the radio actually does "power" the antenna.
It does not. Their report is worded inaccurately (one of the rare
times they have done this).

As the original discussion had apparently ended, I decided to "let
sleeping dogs lie."

But here we are again. So here are my last comments on this subject.

I have now tried this "experiment" with my FIVE ICF-SW7600GRs and ONE
of my ICF-SW7600Gs. I do own one more ICF-SW7600G but I'm just not
going to waste my time.

The radio does NOT power the antenna, the selector knob does not
function, and the red LED does NOT go on (which would indicate that
the antenna is in active mode) UNLESS the antenna has good batteries
in it. Period.

Frankly, Mike, I believe you are not telling the truth. Unless you
have some "miracle" ICF-SW7600G that functions differently than every
other ICF-SW7600G or 'GR in existence (doubtful), you are not
reporting accurately what is happening. Perhaps you don't actually own
one of these radios or even an AN-LP1, or you have some other agenda.
Whatever, your comments are dead wrong and, while I definitely am not
omniscient nor a "great guru," at least in this instance, I am
correct. The ICF-SW7600G/GR does NOT "power" the AN-LP1. It just turns
it "on" or "off" (if the antenna has good batteries installed).

Like a fool, I have now tried it myself six (6) times! and with two
different AN-LP1s. What a jackass I am to have even CONSIDERED wasting
my time this way! I invite any others here who wish to be as foolish
as I have been to try this "experiment" also.

As for differences in sound in sync mode when switching from USB to
LSB, if you had read my posts carefully and accurately, you would have
seen that I wrote that there are certainly very slight differences in
the sound, and this is on ALL of my '7600s, but this does NOT include
excessive treble or bass, the complaint being discussed in the
particular posts. If the sync circuit were out of alignment, I have
read that sound will be more "muffled" on one sideband than the other
but I cannot comment on this AS I HAVE NEVER HEARD IT! A difference in
the signal's sound - yes; "muffled" sound or attenuated or exaggerated
treble or bass, no. Not on ANY of my '7600 models. None. I'm sorry if
others have some problem along these lines, but I personally do not.

On EVERY radio with a sync circuit one can hear a slight difference
between upper and lower sideband (either in ECSS mode or sync mode)..
I also own a Grundig Satellit 800 and an AOR AR7030 Plus. These both
exhibit that same characteristic. This is because the sidebands ALWAYS
have slightly different in sound quality to some extent. They are not
quite perfect mirror images of each other.

All I can say to you, Mike, is that for less than $10.00 and less than
a half-hour of your time, you could have built a passive loop that
wouldl FAR outperform the AN-LP1 when it is used in passive mode
without batteries. You could have saved at least $70.00. But you go
right ahead and use your AN-LP1 without batteries. You will get far
less performance than the antenna is capable of achieving, you will
have saved 50 cents, the price of two AA batteries, and you will be a
happy man.

This discussion, and your comments, are rapidly approaching sheer
stupidity and I shall have no more of it.

Joe

Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sony 7600GR External Antenna Jack, Needs to be settled, Can it be shorted out to the point that it destroys the radio. junius Shortwave 15 June 4th 07 08:52 AM
Sony 7600GR External Antenna Jack, Needs to be settled, Can it be shorted out to the point that it destroys the radio. Roadie Shortwave 0 June 1st 07 03:51 PM
Sony 7600GR - is it feasable to repair/replace External Power Jack cbx Shortwave 2 December 30th 06 02:47 AM
Need an antenna jack for my Sony ICF-2010 Bob Shortwave 3 June 17th 06 08:28 AM
Sony ICF-SW7600GR antenna jack acmac Shortwave 15 October 26th 05 02:53 AM


All times are GMT +1. The time now is 07:41 PM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017