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Re: [TenTec] swr

To: "N4PY2" <n4py2@earthlink.net>, "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Subject: Re: [TenTec] swr
From: "Nathan Moreschi" <n4ydu@yahoo.com>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 15 Aug 2010 20:21:50 -0400
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
Which zero five antenna are you using? I imagine you have a severe mismatch 
with the zero-five on 160 and there is all kinds of losses taking place 
eventhough you are using a tuner. This could create a rough situation as far 
as a match.  The inductor in your tuner is probably over heating...Inductors 
can be very lossy on 160 also...

73,

Nate/N4YDU
----- Original Message ----- 
From: "N4PY2" <n4py2@earthlink.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Sunday, August 15, 2010 8:15 PM
Subject: Re: [TenTec] swr


> My best guess is a component in your Palstar overheats and changes its 
> value
> or the Palstar goes into bypass mode from RF feedback.
>
> Carl Moreschi N4PY
> 121 Little Bell Dr
> Hays, NC 28635
> www.n4py.com
>
>
> ----- Original Message ----- 
> From: "John Molenda" <cdistflatfoot@gmail.com>
> To: "TEN TEC DISCUSSION" <tentec@contesting.com>
> Sent: Sunday, August 15, 2010 8:03 PM
> Subject: [TenTec] swr
>
>
>>  Hi All , I have a TT Orion II and when I use it on 160 with a palstar
>> auto tuner , TT Titan III 417Amp  and a new zero five vertical antenna
>> The swr runs a muck.  This only happens with 250 watts or more , the swr
>> will read on the radio or  tuner say 3.1:1  the Palstar auto tuner
>> knocks it down to 1:1 and all is fine then all of a sudden maybe in the
>> middle of a qso the swr will rise to 3 .1:1and I have to re tune and of
>> course this will send the amp into a fault position . It is almost like
>> the tuner just stops working .  I can't remember if this has happened on
>> other bands but it will happen on 160 .  to answer some questions , no
>> the tuner in the OII is not on when I use the palstar tuner .  And Yes I
>> have 48 radials down at 45 foot each.  I use no grounding inside the
>> shack but my antennas and coax are grounded outside the shack .  Is the
>> problem the radio , tuner , amp or what .And by the way the antenna
>> plays real nice on all other bands .   thanks for your input in advance
>> .  all the best ! John kb2huk
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