[Elecraft] Breakthrough from 28MHz to 144Mhz

[John Ragle]

Roger, John, et al.

     To add further to what I wrote earlier, I DO have a fairly good 10 
meter beam, and the "breakthrough" is much less attenuated than -45 to 
-50 dB. I don't think this problem has anything to do with the 
transverters/per se/, and when I have a chance, I will try disconnecting 
the 10 meter beam and capping off the HF antenna input on the K3. I have 
a reasonable guess as to the effect of this maneuver.

John Ragle -- W1ZI

=====

On 10/15/2011 10:14 AM, John Lemay wrote:
> Hello Roger
>
> I also have the K3 with internal transverter. 10m is certainly lively today
> !
>
> I have the P3 as well, and have used this to evaluate the breakthrough from
> 28MHz, which I find to be between -45 and -50dB. With my HF vertical it
> means that a number of 10m signals are audible as breakthrough, but barely
> moving the meter.
>
> If I had an efficient HF beam the situation would certainly not be
> satisfactory.
>
> Regards
>
> John G4ZTR
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Roger Banks
> Sent: 15 October 2011 13:19
> To: elecraft at mailman.qth.net
> Subject: [Elecraft] Breakthrough from 28MHz to 144Mhz
>
> Hi All
> I was monitoring 144.370 today on the K3 with K144XV module installed when I
> heard a SSB sideband signal at about S2. Also connected to the rig was a
> Butternut HF6V for HF.
> The signal turned out to be a strong station on 28.370 - the IF frequency.
> Anyone else noticed breakthrough to 144 from the 28 IF ??
> Roger - GW4WND
>
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