AW: [Elecraft] Isolation between Ant 1 and 2??

[Stewart Baker]

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-bounces at mailman.qth.net [mailto:elecraft-
>> bounces at 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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