[hpsdr] Munin output low above 29 meters
Kjell Karlsen
la2ni at online.no
Sat Apr 18 09:04:31 PDT 2015
Hello Rick.
I think you must have a fault somewhere outside Munin.
Please try to connect the Dummy Load directly to Munin output and measure
the power on all bands and note the Gain By Band.
For me it seems as there must be something wrong with the switching of the
LPF´s on the bands from 20 m and up.
73, Kjell
På Sat, 18 Apr 2015 15:43:02 +0200, skrev Rick Dykstra
<rdykstra at charter.net>:
> ***** High Performance Software Defined Radio Discussion List *****
>
> I've finished my Munin amplifier, driving it with Hermes, and using Alex,
> here are my results.
> Band output PA Gain
> 6m 52w 38.8
> 10m 90w 38.8
> 12m 70w 38.8
> 15m 85w 38.8
> 17m 90w 38.8
> 20m 100w 49.6
> 30m 100w 50.3
> 40m 100w 51.0
> 60m 100w 54.1
> 80m 100w 55.0
> 160m 100w 51.7
>
> I put the four 220pf 500V caps in the C25, C26 and C27 positions. Are
> there
> any other modifications or can anyone advise what I need to do to get
> 100W
> on the higher bands?
> I did notice the braid on the back of L4 doesn't cover the wires
> 100%..... I
> can see the wires through openings. Could this be the problem?
> Any advice will be appreciated.
>
> Thanks,
> Rick
> KR8T
>
>
>
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