[Elecraft] K2 Build - #6950

Steve KC8QVO kc8qvo at yahoo.com
Tue Jun 1 00:06:33 EDT 2010


Good news - the rig is on the air! I have made two QSO's on it so far. I
tried holding off to get one of my friends to give me the first QSO but I
scrolled past a guy calling CQ and just couldn't resist HI. So I have two
QSO's on the rig so far. 

I tuned the filters first with the receive method. I keyed up one of my
other radios in to a dummy load and tuned the filters to peak the meter. I
adjusted the power out of the radio so I got close to a jump in the meter on
the K2. Then I fine-tuned the inductors and caps more.

After the receive test it was on to the transmit. I peaked the filters for
power out (based on the K2's internal metering while in "tune" mode). In
most cases I was very close already. 

A couple of issues that need resolved - 

First - the buttons on the right side of the rig don't always work right.
Specifically the filter button and the ATTN/PRE. They seem to have crossed
signals with the display, band up, and band down functions. Any ideas on
this one? Most notably - the filter button scrolls through the bands instead
of adjusting the filter width. 

Second - I wasn't able to get any more than .6w out when I did the transmit
test on 17m. It seems to me the caps were very touchy during the receive
test. I was using a metal screwdriver to adjust them and that was playing
all kinds of havoc on the tuning. So I went back to the tuning tool that
came with it. The reason I wasn't using it before was because the caps were
stiff and I didn't want to break the tool. Oh well - theres a reasn why the
tool is plastic, eh? HI. 

In any event, I will get back over to my buddy's place with the test lab and
peak the filters. 17m really seems goofy to me though. I was able to get
nearly all the other bands cose on the receive tuning. Then when I hit 17m I
couldn't get the power to go up for nothing. Hopefully this one is just
being difficult and will be tuned in easier in a lab session. The buttons
are also a bit of a concern. However, the transmitter and receiver work for
the most part. 

Steve, KC8QVO
-- 
View this message in context: http://elecraft.365791.n2.nabble.com/K2-Build-6950-tp5091343p5124426.html
Sent from the [K2] mailing list archive at Nabble.com.


More information about the Elecraft mailing list