K3 60m ERR TXG

[Dave, G4AON]

Stewart

Mine works fine from 5.150 to 5.419 MHz with 95 Watts output when set to
"100W" on the K3 and no sign of ERR TXG messages. The alignment is set
at the factory.

On another 5 MHz issue, the spurious levels are poor and below
specification on frequencies below the point where a relay clicks (5.250
MHz), above that point they are OK.  There are spurious signals approx 1
MHz either side of the main signal that are -46 dBc when the output is
95 Watts on 5.150 MHz.
 
73 Dave, G4AON
K3/100 #80
==============
Following the recent posting of the European 60m BPF adjustments,
I decided to set mine up.

I am having difficulties getting a sufficient bandwidth for the
UK allocation which is 5405kHz to 5260kHz i.e 145kHz.
The bandwidth between ERR TXG messages is approximately 120kHz.

I think that the US allocation runs between 5405kHz and 5332kHz
i.e 73kHz, so that should not give any errors.

Has anybody else had this problem ?

73
Stewart G3RXQ
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[David Woolley (E.L)]

Dave G4AON wrote:

>
> On another 5 MHz issue, the spurious levels are poor and below
> specification on frequencies below the point where a relay clicks (5.250

If the relay has clicked, you are no longer on the 60m band.  If you
have the broadcast filters, you may well be in general coverage mode.
Unless you have the rig configured to disable out of band operation (I
think that is the factory default), there seems to be no problem.

> MHz), above that point they are OK.  There are spurious signals approx 1
> MHz either side of the main signal that are -46 dBc when the output is
> 95 Watts on 5.150 MHz.

The lowest UK authorised channel centre is 5260kHz , making the lowest
channel edge 5258.5kHz

Incidentally, looking at the RSGB 5MHz FAQ
<http://www.rsgb-spectrumforum.org.uk/5mhz%20faqs.htm>, it would seem
that amateur equipment capable of 5MHz operation without modification
can't be CE approved.


--
David Woolley
"The Elecraft list is a forum for the discussion of topics related to
Elecraft products and more general topics related ham radio"
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