[Elecraft] K2 #5549 some questions/remarks

[Ron D'Eau Claire]

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 spec. 

Ron AC7AC

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Jurgen ON5MF
Sent: Sunday, December 24, 2006 11:43 PM
To: elecraft at mailman.qth.net
Subject: [Elecraft] K2 #5549 some questions/remarks


Hi,

First of all Merry Christmas to all of you!

Yesterday I went over to a friend and we did some quick tests on my new 
K2 (basic, no options yet).

To be clear, everything has been aligned with basic tools, as in the 
user manual.

Here are some things we noticed:

   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 on 30, 12 and 10 m we saw some signals around the main
      signal. Is there any chance we can get these bands 'cleaner' by
      further tweaking the filters?

   2. Output power on 10m is OK low in the band, but when going higher
      up it decreases to a mere 1,5 W. Moreover the higher we go in the
      band the worse the transmitted spectrum gets (see above). Is it
      possible to set the filters so the complete 10m band can be used
      at a reasonable power? I know, for CW the low part of the band is
      the place to be, but I'd like to also install the SSB option.

   3. When listening to a continuous signal (XG2 for example) there is
      some kind of a (digital) 'thump' in the audio everytime I turn RIT
      or VFO. Is this a normal behaviour or not?


-- 

73

Jurgen Geldhof
ON5MF

on5mf at ktk.be <mailto:on5mf at ktk.be>

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