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