Yup, and, if you are listening outside the Ham bands on the ts2000, you have 
to double check weather the tuner is inline as well as sometimes it'll 
attenuate the receiver out of band.
With the two little resisters removed, the radio's internal tuner will 
function perfectly from 1.8 to 30MHZ as well.
but, as is fairly well known, a proper external antenna tuner will always 
perform better than the radio's internal tuner...especially if you have an 
auto tuner up close to the antenna feed point.
73
Colin, V A6BKX
----- Original Message ----- 
From: "John Miller" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, March 28, 2010 6:21 PM
Subject: Re: ts480 test


> SWR effects the receive as well as the transmit so yeah, an external tuner
> will change the receive as you tune it as well as the transmit SWR, if you
> set the internal tuner to work on receive as well, you'll also notice 
> after
> it tunes the receive will be up a bit. I have my TS-2000 set that way for
> that reason, if the receive is noticeably down from usual, I know to 
> double
> check the tuning.
> ----- Original Message ----- 
> From: "Howard Kaufman" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Sunday, March 28, 2010 7:25 PM
> Subject: ts480 test
>
>
>>I don't trust my observation, so I'd like somebody else to test it.  After
>>a
>> day of experimentation, I think that using my ts480 with an external
>> tuner,
>> provides a better signal to noise ratio after tuning the antenna, than
>> does
>> bypassing the external tuner and using the internal tuner.  I don't use
>> the
>> internal tuner on receive.
>> I'd like an observation and an explanation.  Seems surprising to me.
>> H T Kaufman MSW LCSW
>> Adaptive Technology Instructor