[hpsdr] RESOLVED - openHPSDRj on Linux with a new ANAN-100D - no tx power on most bands

[Darren Long]

Hi again,

I'm pleased to report back to the list that I've just cobbled together a
gnuradio-companion flowgraph to test out my new ANAN-100D's transmitter
using a  gr-hpsdr block minimally modified to log SWR to stderr and the
rig seems to be transmitting without problems, although it is a bit down
on 15m.

The figures below are the C1 Drive byte value for the stated power for
each band. Checks were performed at the 25W and 100W level.  Power
measurements provided by the gr-hpsdr block's output to stderr and
checked with an external power meter. Current values are from a Diamond
GSV-3000 PSU meter, so are quite rough readings.

Signal Source: 1kHz complex cosine at 100%

160m 	- Drive = 36    for 25W, 9A	 - Drive = 72  	for 100W, 15A
80m 	- Drive = 35    for 25W, 9A	 - Drive = 67   for 100W, 15A
60m	- Drive = 35    for 25W, 8A	 - Drive = 66   for 100W, 14A
40m 	- Drive = 35    for 25W, 8A	 - Drive = 69   for 100W, 12A
30m	- Drive = 41    for 25W, 9A	 - Drive = 78   for 100W, 15A
20m	- Drive = 45    for 25W, 8A	 - Drive = 86   for 100W, 14A
17m	- Drive = 47    for 25W, 7A	 - Drive = 90  	for 100W, 10A
15m	- Drive = 48    for 25W, 7A	 - Drive = 163  for 90W,   10A
12m	- Drive = 45    for 25W, 6A	 - Drive = 186  for 100W, 10A
10m	- Drive = 46    for 25W, 8A	 - Drive = 102  for 100W, 10A
6m	- Drive = 67    for 25W, 10A 	 - Drive = 123  for 100W, 20A

Note: On the 15m band the PA was not able to reach 100W.  Max power
achieved on 15m band was 90W, at a drive of 163. Not much changed with
drives between 163 and 255.

I'm happy that the rig is OK, have learned plenty about how it works and
have got to fiddlle with some great code.  I guess there must be an
issue with the openHPSDRj code that I was running previously.  I shall
keep an eye out for any upstream changes. Thanks to Tom, N5EG for his
work on gr-hpsdr. Where would I be without that? Also thanks to w7fu for
his website.

Cheers, 73

Darren, G0HWW


On 05/05/15 22:34, Darren Long wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Hi all.
> 
> I have a new ANAN-100D to enjoy and only have Linux computers available
> for use with it. After pottering around with using other code for Rx
> only, I thought I'd try using OpenHPSDRj to fire up the transmitter.
> 
> Mindful of the apparent need to perform a per-band tx gain calibration,
> I attempted to go through such a process, for a 20W output power level.
> 
> This worked fine on 80m, 60m, 40m and 20m.  However on 160m, 30m, 17m,
> 15m, 12m and 10m there was no indication of any output power at all.
> 
> Here is some observed data. The SWR readings came from openHPSDRj, power
> readings were from an external meter, which coincided well enough with
> the tx power reported by the s/w. PSU current measurements are very
> approximate.
> 
> 80m 20W OK @1.0:1 SWR with PSU current about 9A
> 60m 20W OK @1.0:1 SWR with PSU current about 9A
> 40m 20W OK @1.0:1 SWR with PSU current about 9A
> 20m 20W OK @1.0:1 SWR with PSU current about 9A
> 
> 160m 0W @1.7-2.2:1 SWR with PSU current about 4A
> 30m  0W @1.7-2.2:1 SWR with PSU current about 4A
> 17m  0W @1.7-2.2:1 SWR with PSU current about 4A
> 15m  0W @1.7-2.2:1 SWR with PSU current about 4A
> 12m  0W @1.7-2.2:1 SWR with PSU current about 4A
> 10m  0W @1.7-2.2:1 SWR with PSU current about 4A

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