butch:
your right to some extent, but if your not paying really close attention,
allot of times those clicks you hear across band edges is the radio
switching from antenna one to antenna two....so if nothing is plugged in to
one of the antenna jacks on hf, the noise will drop really quick.
Not only that, the tuner doesn't click on band edges anyway, it usually
clicks on band segments such as between the cw and phone portions of a
particular ham band.
I wish it did click at the band edges, that way it would be one way of
knowing when you go out of band when using the VFO to tune around.
I used to have the internal ATU set to be inline on receive, but I disabled
that...it caused me more headache than it was worth really.
the thing is, unless you have antennas that are resonant on all those other
frequencies, how do you know the tuner can't tune on those frequencies, and
that the swr is just too high, that is, 3 to 1 or greater where the internal
ATU won't tune it?
anyway, your probably closer to being right though here, the internal tuner
likely doesn't work as well out of the ham bands.
it'll still work, but probably not as efficiently.
73
Colin, V A6BKX
----- Original Message -----
From: "Butch Bussen" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, September 26, 2010 6:54 PM
Subject: Re: Vertical antennas
> Well, I wouldn't say the tuner works everywhere. It won't tune some
> antennas I've tried it on on 60 meters. The problem is that the tuner
> doesn't switch for that band, it knows 80 meter band and the 40 meter
> band, but not 60. It will tune, but it is much more of a problem on 60
> meters. Another test you can do is as you tune across a band edge is to
> listen to the noise and see when the filtering and tuner is switched.
> If you move ten kc, over the boundary and you hear a relay click as
> bandpass filters and tuners are changed and the noise drops
> significantly, it is a good clue is isn't optimized for that frequency.
>
>
> 73
> Butch Bussen
> wa0vjr
> open Node 3148
> Las Vegas
>
>
> On Sun, 26 Sep 2010, colin McDonald wrote:
>
>> no, removing r53 completely opens up tx from 1.75MHZ to 30MHZ, no gaps.
>> full 100W tx power output, and the tuner works everywhere.
>> its a modern CPU controlled rig, so you don't run into major tuning
>> issues
>> as you alter the transmit frequency outside of specified areas like what
>> used to happen to older rigs.
>> 73
>> Colin, V A6BKX
>> ----- Original Message -----
>> From: "Tom Brennan" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Sunday, September 26, 2010 3:34 PM
>> Subject: Re: Vertical antennas
>>
>>
>>> It extends a few bands below 30m a bit for MARS use but nothing in
>>> commercial
>>> bands except in the 8-9 meg range, I think.
>>>
>>> Tom
>>>
>>>
>>> Tom Brennan KD5VIJ, CCC-A/SLP
>>> web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html
>>
>>
>
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