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Messages - paul5.wolf

#1
An SDR solution?  I'm not a ham.  But I bought the Air Spy with SpyVerter to get lower frequencies up to L Band.  I have to take the SpyVerter in and out of the signal path.  I got it to play with.  Nevertheless, it might be good to ask around, if you're only trying to receive.  And I would love to hear your decision!  (I'm studying to try testing for zero to extra class right now.)

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#2
Quote from: gil on August 22, 2017, 01:51:20 PM
Hello,

You know I've been thinking about the perfect survival radio for a while, first proposing a CW-only transceiver. Only fools never change their mind, so here is what I have come up with now:

  • Quad band, 20, 30, 40, 80m transceiver.
  • CW and DSB modes.
  • Keyer optional but real CW with full QSK.
  • 3kHz and 400Hz filters.
  • General coverage receiver.
  • 10W output.
  • Low current draw on receive.
  • Watertight case and connectors.
  • Battery in the case.
  • Built-in battery charger (3x 18650?).
  • Military handset or speaker-mic.
  • SWR indicator.
  • High SWR protection.

The choice of DSB is dictated by the need to interoperate with military radios which use USB only. I am thinking of a minimalist concept, less is better.

I wonder if a radio designer could be hired after a crowd funding campaign... What are your thoughts on this?

Gil.
The perfect survival radio would work for anyone.  He may not know code.  If it's survival, it's protection of life or property hence emergency-- legal regardless.  I like your idea to take a punch at a perfect survival radio.  Those who don't know code may know "SOS.". ANOTHER idea might be a few perfect survival radios each mimimal for their purpose.  Before I knew much about JT65, my thoughts ran to whether radios all set to a few  channels that were capable to transmit/receive as self contained units could do about anything in anyone's hands.  But, then behold those tiny messages and all the technicalities.  You are on to something good.

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