I would consider that figure acceptable.
With my K3 the isolation between ANT1 and ANT2 is 42dB worst case,
56dB Max.
Moving the single wires around made no difference. I suspect that
the level of isolation is determined by the ATU PCB layout.
Given the size of that board I think that the isolation obtained
is reasonable.
73
Stewart G3RXQ
On Sat, 3 Jan 2009 13:43:21 +0100, Koppendorfer Klaus wrote:
> yes isolation between ant1 and ant2 is very bad...
> if I have time I try to change the silgle wires from the rs323
ports to the atu-board to koax wires, maybe this will help a
little
>
> 73
> OE6KYG
> KX1 244
> K2 1331
> K3 115
>> -Ursprüngliche Nachricht-
>> Von: elecraft-boun...@mailman.qth.net [mailto:elecraft-
>> boun...@mailman.qth.net] Im Auftrag von Dick Roth, KA1OZ
>> Gesendet: Samstag, 03. Jänner 2009 06:14
>> An: Elecraft Reflector
>> Betreff: [Elecraft] Isolation between Ant 1 and 2??
>>
>> Hello and Happy New Year!!
>>
>> Was doing some testing and discovered Ant 1 signal on Ant 2.
Ant 1 is
>> my GAP Titan-DX and Ant 2 is a 100W dummy load.
>>
>> I was just reading the mail on 75 meters and switched to Ant 2
to test
>> power. When key was off, I heard part of the QSO that was
going on.
>> While on my dummy load, I was receiving a station S3, which on
Ant 1 was
>> 20 over S9.
>>
>> Has anyone else seen this crosstalk? If so, what is considered
>> "acceptable"?
>>
>> --
>> 73,
>> Dick ka1oz
>> Middleborough, MA
>>
>> Radio: Elecraft K3/100(Kit) SN 859
>> Antenna: Titan-DX
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