Gerry:
The rig puts out 100 watts solid now when transmitting on a resonant
frequency without any tuner, so I think I'm back in business now.
73 from Tom Behler: KB8TYJ
----- Original Message -----
From: "Gerry Leary" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, January 02, 2012 8:59 AM
Subject: Re: More power output readings--now doubting accuracy of LDG TW1
> Well at least the tuner protects the radio. Maybe check the meters when
> using no tuner at all.
> ----- Original Message -----
> From: "Tom Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, January 02, 2012 5:42 AM
> Subject: Re: More power output readings--now doubting accuracy of LDG TW1
>
>
>> Bob:
>>
>> Your concern about auto-tuners is why I tend to use my Tentech 238A
>> manual
>> tuner if I ever want to be really sure that I'm getting the maximum power
>> out of the rig with an antenna that is not exactly resonant.
>>
>> Actually, the auto-tuner in an Icom 746 I used to have was even worse in
>> terms of lessening rig output power than the auto-tuner in the TS590
>> seems
>> to be.
>>
>> So, in summary, I guess rig auto-tuners are a compromise at best, but can
>> come in handy if you want to do quick tuning for a contact or net
>> check-in.
>>
>> 73 from Tom Behler: KB8TYJ
>>
>> ----- Original Message -----
>> From: "Bob, K8LR" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Sunday, January 01, 2012 10:47 PM
>> Subject: Re: More power output readings--now doubting accuracy of LDG TW1
>>
>>
>>> Tom,
>>>
>>> I use an RF applications P2000 watt meter and the power indications
>>> between
>>> the ts590 and the P2000 are pretty accurate. One thing that will throw
>>> power readings off though, is the use of the rig's internal tuner.
>>> That's
>>> why I almost never use any internal tuner. When I turn the internal
>>> tuner
>>> on, I see a power drop from 10 to 20 watts. Tuners in to days modern
>>> rigs
>>> are all based on lumpt inductors and fixed capacitors. They are not
>>> like
>>> the tuners in the older rigs that had motor driven variable capacitors
>>> and
>>> inductors.
>>>
>>> Bob, K8LR, [log in to unmask]
>>>
>>> ----- Original Message -----
>>> From: "Tom Behler" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Sunday, January 01, 2012 2:45 PM
>>> Subject: More power output readings--now doubting accuracy of LDG TW1
>>>
>>>
>>> Hi, folks.
>>>
>>> I know, I know, it's just the professor in me, but this output power
>>> issue
>>> I've been dealing with is intellectually interesting, if nothing else.
>>> I
>>> fully realize that 20 watts either way isn't going to make a difference
>>> in
>>> terms of who hears me, how well they hear me, etc., but I have to report
>>> on
>>> my latest set of output power readings this morning.
>>>
>>> First of all, When I use my Astron RS35 power supply, and take output
>>> power
>>> readings with the watt meter on the TS590, things now seem to be pretty
>>> stable at 100 watts output on either a resonant frequency for one of my
>>> antennas, or when using the TS590 auto-tuner. Obviously, the resonant
>>> frequency readings are going to be the most revealing, so those are the
>>> ones I have the most faith in.
>>>
>>> What I still don't understand is why my LDG TW1 seems to be about 20
>>> watts
>>> off with its output power readings. For now, I'm going to go with the
>>> readings the radio gives me, since the rig is what needs to be kept
>>> happy.
>>>
>>> Between Mike Duke and Steve Forst, I do have some good instructions if
>>> I
>>> ever want to tweak the output voltage on the Astron RS35, but I think
>>> I'll
>>> hold off on doing that for a while until I see if things remain as
>>> stable
>>> as
>>> they are right now.
>>>
>>> Thanks to all for your your continued interest in, and help with this
>>> issue.
>>>
>>> 73 from Tom Behler: KB8TYJ
>>>
>
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