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Messages - JustGreg

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166
I see and hear the carrier but nothing else.  It is a weak signal here.

167
I have it with a fair signal (S4).  Thanks for the show.  Signal was better on 6130 at my location

168
I have it with a good (S6) signal.  Thanks for the show.

169
I have it with a good signal (S6).  Playing Ain't that a shame.  Thanks for the show.
This is a good show.  Brings back childhood memories.  The only thing missing is cigarettes, beer and local car ads.
0020 Off the air.  Real nice show.

170
SDR - Software Defined Radio / Re: Quick Review of Malahit DSP2
« on: December 02, 2023, 2217 UTC »
After using this some more until different propagation and noise conditions, I find this more like some of the old vacuum tube receivers.  One has to play with the RF GAIN setting.  Sometimes RF GAIN = 10 works and other times the RF GAIN = 16 is best.  The AGC seems not work the way one thinks it should.  The processing gain between the analog RF and digital processing  seems to be skewed to too much digital gain and not enough RF gain.  One has to play with the settings.  There does not seem to be no magic settings for the controls.   PGA BST and MIX GR definitely need to be enabled.    I also found the S meter reads much to high.  I had to reduce Sm correct (S meter correct) setting by -26 dB.  Another indicator that gain distribution is wrong.  I hope this helps someone else with one of these.

171
I have the good DJ Dickweed paying new music with a good signal.  Thanks for the show!

172
I have the carrier and no audio.  Should be a fair signal.
0200, Piano Interval signal.  Thanks for the show.
0205 Purple rain cover

173
I have it with a poor signal (S3).  Thanks for the show.  Playing a cover of I said too much,

174
SDR - Software Defined Radio / Re: Quick Review of Malahit DSP2
« on: December 01, 2023, 1324 UTC »
An update, now that I had it for awhile.  I use it for medium wave, shortwave and VHF FM broadcasts.

It does work better than the previous versions.  During the day, I have no problems with spurious signals.  However, at night, when 40 meters goes long, then spurious signals (images, aliasing, etc) show up.  I found the settings that minimize spurious signals on medium wave and shortwave.  One has to enable:  PGA BST, MIX GR (this reduces audio levels) and RF Gain = 10 to compensate for loss in audio.  Long wave does not work.  There is aliasing of medium wave broadcasts into the long wave band.  This is a lack of anti-aliasing filters.  I guess the designers have decided the extra effort for long wave is not worth it. 

I have found no problems with FM broadcasts showing up in the shortwave bands.  Broadcast FM performance is good. 

In general, it is nice to see the what is on without needing to start up a computer.  This is an addition to my listening post and not a replacement of the Air Spy HF + Discovery Raspberry PI combination.

175
I have it with a good signal.  Thanks for the show.

176
I have it with a poor signal.  I can not tell what music is playing.  Thanks for the show.  Song mentions die.
SSTV image looks like Thunder Chicken.

177
I have it with a poor (noisy) signal.  Sounds like a heavy metal tune.  Thanks for the show.
2235 Female gave ID. Locomotive Radio

178
2307 Male and female sounds like Japanese.  Good signal.  Goes Male and Female 3 times.
2308, Male saying meat sauce.  There is a back ground hiss in the audio. 
2310, Back to computer? Male Female saying foreign words.

179
I have it with a poor signal, noisy audio.  Playing a nice guitar tune.  Thanks for the show..

180
I have it with a weak signal, just above noise.  Sounds like Christmas music  Thanks for the show.

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