[Elecraft] Elecraft T1 auto tuner question

Dave New, N8SBE n8sbe at densbe.com
Tue May 23 12:20:47 EDT 2023


I use this on all my QRP rigs that can't take a high SWR during tuning 
with an external tuner:

https://qrpguys.com/tuning-indicator

It's tiny, inexpensive, and keeps the SWR under 1.5:1 while you are 
tuning, and has a little slide switch that bypasses the gadget after you 
done tuning, so you can get full power out to the antenna.

Highly recommended (by me, of course :-)

73,

-- Dave, N8SBE

On 2023-05-22 14:52, n7tb at comcast.net wrote:
> I have a T1 that I have used for several years.   I recently purchased 
> a
> QCX-mini, and an SW-3B.  I normally use my K2, KX2 or KX3 for portable
> operations, but occasionally I like to use something different for QRP 
> CW.
> Both the QCX-mini and the SW-3B require a 2.0 or less SWR.  The
> documentation for SW-3B says that operating at any SWR over 2.0 will 
> damage
> the radio.  The outputs varies with voltage, but usually runs at 4-5 
> watts
> with a 12V supply.  If I attach the T1 to that rig, and perhaps the 
> QCX-mini
> as well, it will require the rig attached to present a constant carrier 
> to
> tune.  This seems to eliminate using an auto tuner with the SW-3B at a
> minimum in that configuration.
> 
> 
> 
> Can someone tell me how I might get the T1 to tune in the field with
> something other than the rig.  If I could trigger it to tune, then I 
> could
> attach to the radio after the tune cycle.   My plan is to use a 
> resonant
> antenna, but that may not always be possible, especially with a three 
> band
> rig like the SW-3B.
> 
> 
> 
> Thanks,
> 
> 
> 
> Terry, N7TB
> 
> 
> 
> 
> 
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