Thanks Michael!  

I did not know that it ought to be turned off whenever going *outside* the
ham bands.  Indeed, for operations *within* the ham bands, so far I have not
seen any reason why the internal antenna tuner's receive function should not
be turned-on.

73,
Richard KK6MRH

-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of Michael Thurman
Sent: Wednesday, September 10, 2014 12:27 PM
To: [log in to unmask]
Subject: Re: TS-2000 Internal Antenna Tuner Basics

One place that using the internal antenna tuner, or any antenna tuner = for
that matter, is at field day. Using it improved the rejection of = garbage
from other transmitters. I was sharing the same tent with the = 20cw station
while I was running the GOTA station for the kids, and = found that using
the internal tuner on receive eliminated almost all of = the trash from the
20cw station while I was  also on 2o SSB. I found = that it eliminated all
of the trash from any other stations when i was = on a different band, and
heard no interference from any other field day = station unless I happened
to be operating at a third harmonic of another = station=92s transmitter,
which of course meant I was hearing the signal = as if it were anything else
on that received frequency. the built in = tuner improves 40 meters the most
as there is usually broadcast stuff  = very close in, and it makes an
audible difference when neighbor fires up = about 2 blocks away with 500w.
Just remember to turn it of when you go = outsie the ham bands as it does
still stay in line even in the am = broadcast band, where of course you ca
not even attempt to tune. Turning = it off is not a difficult thing to do
when you are just receiving = anyway.
Another unrelated feature is the ability to use a separate receive =
antenna. This feature is very hie if you want to use a magnetic loop for =
receive. it was great not he occasion I had to use one because you could =
eliminate an unwanted satin or noise source completely. i am considering =
building a receive only antenna for  broadcast through 80 meters one of =
these days. I also think it is a great place for a receive converter to =
live, since you can not accidentally transmit into the converter. Before =
it died I was playing around with an old vcd tuner and used it as a =
receive converter to tune 800 mhz and sent it there with a single rya =
cable from the baseband video output into the radio. it requires an old =
vcd that does not have video squelch, aka the blue screen, when tuned to = a
blank tv channel, instead giving ou the snow. It would  also work with = an
old analog satellite receiver to tune L band, which is 950-1450 mhz, =
except you use the subcarrier output instead of the video output. I = works
like a charm to receive 1296 mhz repeaters if you a re lucky = enough to hav
done in your area
73 and have fun exploring

Michael Thurman
[log in to unmask]



On Sep 10, 2014, at 2:11 PM, Tom Brennan <[log in to unmask]> =
wrote:

> I find that it depends upon the antenna you're using whether the =
internal tuner
> really makes a difference when tuning for receive.  For example, my =
g5rv doesn't
> show a lot of difference in most places but some of the long wire =
antennas I've
> played with show a 7-8 dB difference when tuned.  Besides, tuning the 
> =
receive
> antenna cuts down on noise problems and makes beacon hunting easier as 
> =
it allows
> for better differentiation with directional and semi directional =
antennas.
>=20
> Tom
>=20
>=20
> Tom Brennan  KD5VIJ, CCC-A/SLP
> web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html
>=20
> On Wed, 10 Sep 2014, John Miller wrote:
>=20
>> Date: Wed, 10 Sep 2014 07:28:45 -0400
>> From: John Miller <[log in to unmask]>
>> Reply-To: For blind ham radio operators =
<[log in to unmask]>
>> To: [log in to unmask]
>> Subject: Re: TS-2000 Internal Antenna Tuner Basics
>>=20
>> As narrow as the range is on the internal tuners, you won't notice =
much
>> difference on receive. External tuners have a much broader range of =
tuning
>> so it will make a lot more difference.
>> ----- Original Message -----
>> From: "Don Breda" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Wednesday, September 10, 2014 5:47 AM
>> Subject: Re: TS-2000 Internal Antenna Tuner Basics
>>=20
>>=20
>>> Let me tell you having used manual antenna tuners you do want them =
on in
>>> received.
>>>=20
>>> Why would you want a  non tuned antenna in receive and a tuned =
antenna
>>> in transmit.
>>>=20
>>> Take a manual tuner, tune the antenna  then listen to receive and =
bypass
>>> the tuner and you should see signal levels drop.
>>>=20
>>> I will admit its not as noticeable with my ts-480 and the internal  
>>>antenna tuner but still I don't get that.
>>>=20
>>> Don
>>>=20
>>>=20
>>> --
>>> Don Breda <[log in to unmask]>
>>=20