My bench voltage is 14 volts and battery is measured at 12.4 VDC
Tried a new and better dummy load and got 3watts on both bands with bench
supply and 2 watts on 40M and 3 watts on the battery.
I used an RF probe on the output with the battery supply I got 5.6V on 14M
and 5.3 on 40M These are
I have just assembled s/n 2626 and have found low power output. Mine is a two
band version with no options. With a bench supply, I get 4 Watts on 20M and
3 Watts on 40M into a dummy load. This measured with an electaft W1. I will
look again at my LP toroids, but looks like I may need to do the
I have just assembled s/n 2626 and have found low power output. Mine is a two
band version with no options. With a bench supply, I get 4 Watts on 20M and
3 Watts on 40M into a dummy load. This measured with an electaft W1. I will
look again at my LP toroids, but looks like I may need to do the
What is your DC voltage? The KX1 specification is 3-4 watts with 12
volts, so you are close to the spec right now. If you have an antenna
analyzer, check you dummy load to be certain it is the same 50 ohm pure
resistive load on both bands. Your wattmeter may also be frequency
sensitive -
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
Ian,
The greater power on 20 may be OK, it is difficult to tell from a
distance, but less than 3 watts gives me concern. You can add the KX1
Power Mod Change R11 to 4.7 ohms (or add another 10 ohm in parallel
with the existing 10 ohm resistor) and increase R30 to 33 ohms. If you
ordered
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