Hi everyone,
thanks for the replies so far.
No the spurious we see are not due to overloading of the spectrum
analyser. They are really there! We saw them on 30, 12 and 10m, the
other bands were a lot 'cleaner'.
We (ON7KZ and I) have no time to get into it in the first few days but
the file
A few months ago, after completing #5390, I ran a check on the cleanliness of
the K2 transmitted CW signal on 28Mhz, using the spectrum scope in my IC-781 as
a spectrum analyser. I could not detect any trace of spurii and the slopes of
the received trace were sharp and smooth, with the scope set
Hi, Jurgen:
Regarding 10 meters, the specifications say the K2 will deliver at least 10
watts from 28.0 to 28.8 MHz - a range of 800 kHz. It is not designed to
cover the whole 10 meter band. I'm not sure where you see the power drop
off, but if it's making 10 watts at 28.8 MHz it's working within
Jurgen,
If you peak the 10 meter bandpass filter at 28.4 MHz, you will have greater
power output at 28.8 MHz.
Note that the specified 10 meter band coverage for the K2 is 28.0 to 28.8
MHz. Above that range, the output power is expected to decrease.
There are mods to increase the 10 meter bandpas
In a message dated 25/12/06 10:53:49 GMT Standard Time,
[EMAIL PROTECTED] writes:
1. when looking at the transmitted signal using a spectrum analyser,
the signal didn't seem as clean as we liked it. We didn't have
time (it was the day before X-mas!) to really start counting the
dB's, but o
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