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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
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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
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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
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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
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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
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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 ![]() |
#7
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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 |
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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 |
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