Thanks very much for the info. When I get some time in the next day or two,
I'll check it out further.
Your help was much appreciated.

----- Original Message -----
From: "Dr. Anton T. Squeegee"
Newsgroups: rec.radio.amateur.boatanchors
Sent: Sunday, December 03, 2006 4:07 AM
Subject: Motorola Moxy Radios


In article ,
(known to some as Radiosrfun) scribed...

OK, here is a question...

Around here, I seem to see only a few models of radios at any one time.
Moxy
is one I've not seen and as such am not familiar. I bought a "used" Moxy
for
"possible" use. It transmits ok - but no recieve audio. Now, I am
wondering - if there is a PL reed which could be blanking out the audio?
OR
is it done by programming - some how?

The Moxy was an 'entry-level' version of the Maxar series. I used
to work on both years ago. They're crystal-controlled analog-only
radios, no programming or microprocessors involved at all.

Some radios either did not have an internal speaker, or required a
jumper between two of the contacts on the rear Molex-type connector to
activate the internal speaker. There should not be any PL muting going
on unless the radio has a microphone hangup box, with the appropriate
switch, wired into that same Molex plug.

I didn't look "too" closely to see if I could spot a "reed" - as it was
late
and my eyes weren't cooperating too well. I can look again.

There were two different versions of PL board. One did indeed use
the standard 'Vibrasponder' type reeds, but the newer boards used a
custom IC and pluggable tone filter element. Said element consisted of a
series of precision resistors, imprinted on a ceramic substrate and
laser-trimmed to the desired value for the PL tone required.

There was still another board that provided DPL - Digital Private
Line. It also used a ceramic module, but they were much simpler in that
they're just conductive jumpers, the pattern of which determined what
code the board would generate and respond to.

The tone filter plugs can be difficult to find. If you discover
that you need to change PL tones, you would probably be better off
putting a ComSpec board in there to replace the factory PL board.

I am betting (hoping!) there is PL involved - but in case there isn't -
anyone have a manual I can get a copy of the receiver section schematic
from? This radio is currently on 47.50 MHz. I am not real sure I am going
to
keep it. I "thought" about putting it on our fire band, but we "may" be

snippety

The low-band Moxys are fairly durable, if you don't put them in a
rough environment. It would make a fair 6-meter radio, but I wouldn't
want to depend on something that old for communications that could
affect public safety.

If you do decide to use it, you can get the necessary crystals from
International. However, you will need a full service manual, and the
necessary test gear, to align and test it.

Happy tweaking.


--
Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute
(Known to some as Bruce Lane, KC7GR)
http://www.bluefeathertech.com -- kyrrin a/t bluefeathertech d-o=t calm
"Salvadore Dali's computer has surreal ports..."

Hi Antwon,

I wanted to thank you for your help last night when reading your reply - it
took all I had to read my e-mail and newsgroups. I was dead tired and that
was all I could muster. Now that I've had some sleep - here goes.

As to using the radio for Public Service - "I" am a line officer in our Fire
Department - so I was "thinking" of "maybe" using it for our fire band in my
own vehicle. However - as I know I had stated in my first post - we're
supposed to be going to VHF High band soon, so I probably won't bother. I
can always use my station issued portable.

As to repairing and aligning, I have a bench full of equipment and knowhow
to do so. I just never dealt with a "Moxy" before and wanted some advice on
it before I dug into it "deeper" than I already had - especially since I
don't have a manual either. As I said, we seem to get only certain models of
radios around here - be it the Police, Fire or EMS. Moxy hasn't been one of
them. I merely bought it at a hamfest from someone not from this area - and
thought "maybe" I could find use for it.

I merely peeked under the cover briefly - having bought it used. Again, that
night, I was so tired, I couldn't see straight to go much beyond that point.
I do know though, it was transmitting - decent - though I didn't look at the
wattmeter - it "may" need tuned a bit.

As I also said, once I determine the problem, I "may" even decide to throw
it on E-Bay. IF I don't use it in my vehicle and should I decide not to
putter around placing it on 6 meters - I may just do that. As to "Crystal
Companies" - it's been a short time since I've bought them - but I am aware
of them all. I have a bench full of radios right now to go through to keep
me busy for a couple weeks. So - the Moxy "may" go back on the "to do" pile
and be there a while - "if" I "do" decide to keep it.

Thanks again, your help was much appreciated. Speaking of work - time to get
back to it!



"Radiosrfun" wrote in message
...
Thanks very much for the info. When I get some time in the next day or
two, I'll check it out further.
Your help was much appreciated.

----- Original Message -----
From: "Dr. Anton T. Squeegee"
Newsgroups: rec.radio.amateur.boatanchors
Sent: Sunday, December 03, 2006 4:07 AM
Subject: Motorola Moxy Radios


In article ,
(known to some as Radiosrfun) scribed...

OK, here is a question...

Around here, I seem to see only a few models of radios at any one time.
Moxy
is one I've not seen and as such am not familiar. I bought a "used" Moxy
for
"possible" use. It transmits ok - but no recieve audio. Now, I am
wondering - if there is a PL reed which could be blanking out the audio?
OR
is it done by programming - some how?

The Moxy was an 'entry-level' version of the Maxar series. I used
to work on both years ago. They're crystal-controlled analog-only
radios, no programming or microprocessors involved at all.

Some radios either did not have an internal speaker, or required a
jumper between two of the contacts on the rear Molex-type connector to
activate the internal speaker. There should not be any PL muting going
on unless the radio has a microphone hangup box, with the appropriate
switch, wired into that same Molex plug.

I didn't look "too" closely to see if I could spot a "reed" - as it was
late
and my eyes weren't cooperating too well. I can look again.

There were two different versions of PL board. One did indeed use
the standard 'Vibrasponder' type reeds, but the newer boards used a
custom IC and pluggable tone filter element. Said element consisted of a
series of precision resistors, imprinted on a ceramic substrate and
laser-trimmed to the desired value for the PL tone required.

There was still another board that provided DPL - Digital Private
Line. It also used a ceramic module, but they were much simpler in that
they're just conductive jumpers, the pattern of which determined what
code the board would generate and respond to.

The tone filter plugs can be difficult to find. If you discover
that you need to change PL tones, you would probably be better off
putting a ComSpec board in there to replace the factory PL board.

I am betting (hoping!) there is PL involved - but in case there isn't -
anyone have a manual I can get a copy of the receiver section schematic
from? This radio is currently on 47.50 MHz. I am not real sure I am
going
to
keep it. I "thought" about putting it on our fire band, but we "may" be

snippety

The low-band Moxys are fairly durable, if you don't put them in a
rough environment. It would make a fair 6-meter radio, but I wouldn't
want to depend on something that old for communications that could
affect public safety.

If you do decide to use it, you can get the necessary crystals from
International. However, you will need a full service manual, and the
necessary test gear, to align and test it.

Happy tweaking.


--
Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute
(Known to some as Bruce Lane, KC7GR)
http://www.bluefeathertech.com -- kyrrin a/t bluefeathertech d-o=t calm
"Salvadore Dali's computer has surreal ports..."

CORRECTION -

HELLO - "ANTON"....................

Sorry bout that - the coffee hasn't hit home - yet! SHEESH..............

"Radiosrfun" wrote in message
...
Hi Antwon,

I wanted to thank you for your help last night when reading your reply -
it took all I had to read my e-mail and newsgroups. I was dead tired and
that was all I could muster. Now that I've had some sleep - here goes.

As to using the radio for Public Service - "I" am a line officer in our
Fire Department - so I was "thinking" of "maybe" using it for our fire
band in my own vehicle. However - as I know I had stated in my first
post - we're supposed to be going to VHF High band soon, so I probably
won't bother. I can always use my station issued portable.

As to repairing and aligning, I have a bench full of equipment and knowhow
to do so. I just never dealt with a "Moxy" before and wanted some advice
on it before I dug into it "deeper" than I already had - especially since
I don't have a manual either. As I said, we seem to get only certain
models of radios around here - be it the Police, Fire or EMS. Moxy hasn't
been one of them. I merely bought it at a hamfest from someone not from
this area - and thought "maybe" I could find use for it.

I merely peeked under the cover briefly - having bought it used. Again,
that night, I was so tired, I couldn't see straight to go much beyond that
point. I do know though, it was transmitting - decent - though I didn't
look at the wattmeter - it "may" need tuned a bit.

As I also said, once I determine the problem, I "may" even decide to throw
it on E-Bay. IF I don't use it in my vehicle and should I decide not to
putter around placing it on 6 meters - I may just do that. As to "Crystal
Companies" - it's been a short time since I've bought them - but I am
aware of them all. I have a bench full of radios right now to go through
to keep me busy for a couple weeks. So - the Moxy "may" go back on the "to
do" pile and be there a while - "if" I "do" decide to keep it.

Thanks again, your help was much appreciated. Speaking of work - time to
get back to it!



"Radiosrfun" wrote in message
...
Thanks very much for the info. When I get some time in the next day or
two, I'll check it out further.
Your help was much appreciated.

----- Original Message -----
From: "Dr. Anton T. Squeegee"
Newsgroups: rec.radio.amateur.boatanchors
Sent: Sunday, December 03, 2006 4:07 AM
Subject: Motorola Moxy Radios


In article ,
(known to some as Radiosrfun) scribed...

OK, here is a question...

Around here, I seem to see only a few models of radios at any one time.
Moxy
is one I've not seen and as such am not familiar. I bought a "used"
Moxy
for
"possible" use. It transmits ok - but no recieve audio. Now, I am
wondering - if there is a PL reed which could be blanking out the
audio?
OR
is it done by programming - some how?

The Moxy was an 'entry-level' version of the Maxar series. I used
to work on both years ago. They're crystal-controlled analog-only
radios, no programming or microprocessors involved at all.

Some radios either did not have an internal speaker, or required a
jumper between two of the contacts on the rear Molex-type connector to
activate the internal speaker. There should not be any PL muting going
on unless the radio has a microphone hangup box, with the appropriate
switch, wired into that same Molex plug.

I didn't look "too" closely to see if I could spot a "reed" - as it was
late
and my eyes weren't cooperating too well. I can look again.

There were two different versions of PL board. One did indeed use
the standard 'Vibrasponder' type reeds, but the newer boards used a
custom IC and pluggable tone filter element. Said element consisted of a
series of precision resistors, imprinted on a ceramic substrate and
laser-trimmed to the desired value for the PL tone required.

There was still another board that provided DPL - Digital Private
Line. It also used a ceramic module, but they were much simpler in that
they're just conductive jumpers, the pattern of which determined what
code the board would generate and respond to.

The tone filter plugs can be difficult to find. If you discover
that you need to change PL tones, you would probably be better off
putting a ComSpec board in there to replace the factory PL board.

I am betting (hoping!) there is PL involved - but in case there isn't -
anyone have a manual I can get a copy of the receiver section schematic
from? This radio is currently on 47.50 MHz. I am not real sure I am
going
to
keep it. I "thought" about putting it on our fire band, but we "may" be

snippety

The low-band Moxys are fairly durable, if you don't put them in a
rough environment. It would make a fair 6-meter radio, but I wouldn't
want to depend on something that old for communications that could
affect public safety.

If you do decide to use it, you can get the necessary crystals from
International. However, you will need a full service manual, and the
necessary test gear, to align and test it.

Happy tweaking.


--
Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute
(Known to some as Bruce Lane, KC7GR)
http://www.bluefeathertech.com -- kyrrin a/t bluefeathertech d-o=t calm
"Salvadore Dali's computer has surreal ports..."