[Elecraft] calibrating bfo/dds kx1

2012-04-25 Thread Ian Watson
I have a minor query on calibrating the dds on a kx1. I have followed the 
instruction manual and selected a strong sw am station. After adjusting the bfo 
to -.07 both sidebands are identical, next I tuned to the frequency the station 
is transmitted on. Using dds I adjusted one of the sidebands to sound correct 
at that frequency, it was dds = 10.

Now according to the manual that's it, but when I selected between lsb and usb 
at that same frequency the sidebands appear different? I would have thought 
they should be the same.

What did I do wrong, any kx1 dds bfo wizards out there? I'm not sure how the 
adjustments interact.

73,
Ian MM0GYX
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[Elecraft] first post test and kx1 power issues

2012-04-15 Thread Ian Watson
Hi folks,

I've just finished building my base kx1 without options, planning to use it as 
my prime SOTA rig, (along with the rockmite 40  SW+20 I have already used).

Construction and stage checks went fine, it emits rf and sounds fine on my big 
rig.

I've checked the output into a dummy load and homebrew rf probe which is 
quite accurate. To cut to the chase, I get more power on 20 meters than 40 
meters, at 14 volts I have 2.9w and 2.6w respectively. Now this is fine but I 
read that 20 is normally lower than 40 for optimal clean signals. I've checked 
all my work, windings are correct and bunched up to 70% of diameter on L2.

Is this a problem or just component variability? I've still to see what I get 
at 9 volts, although it'll run from an 11.1 volt 3c lipo when SOTA.

I have one qso in the bag on 20 meters, 559 from France.

The receiver is very fb, and I love the qsk.

Just to recap, happy with the power out (I've worked N4EX from here in Scotland 
using 1.5 watts), just unsure about emisions.

73,
Ian, MM0GYX
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