[Elecraft] Low Power on 10 Meters

[David Wilburn]

If all else is well, then consider how you are measuring it.  As Don has 
pointed out before, the internal power meter expects a 50 ohm load. 
After trying several configuration that showed 6w on 10m, I checked the 
dummy loads.  All three were showing 1.2 swr with an analyzer.  I then 
connected to my MFJ-949E with internal dummy load, and I connected so 
that the manual controls were in line, and adjusted for minimum SWR 
while hitting the tune button.  When I did this and used the internal 
power meter, it showed 12w.

None of my measurement setups were perfect, I was mainly looking at the 
spread of the readings.  But when I used the setup described above, all 
my readings, on all bands, were above 12w.  When read with external 
power meters, they fluctuated quite a bit more.

David Wilburn
dave.wilburn at verizon.net
K4DGW
K2 #5982


William M. Spaulding, SR wrote:
> Folks,
> 
> I'm having a real struggle getting 6 to 7 WATTS on 28 Mhz while all other all other bands come up with a number well in excess of 10 Watts.
> 
> Has anyone experienced this problem and was able to solve it?  I'm suspecting low pass filters that are not coordinated to the 10 Meters Caps, if you can get my drift. I can't come up with a reason for this.  In fact, it may make 10 Meters useless for some modes.
> 
> Help?
> 
> Bill
> NA7Y
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