[FreeBay] Wanting to TRADE, Radiosonde, Vaisala RS-80m.

[KD7JYK DM09]

Radiosonde, Vaisala RS-80m, new in package.

Battery operated, ~403 MHz

Measures temperature (internal, external), humidy and barometric pressure.

These also have an Omega GPS receiver.  Omega operated from 10 -14 KHz, the
system was shut down in 1998.

The Omega GPS receiver can be removed and used as a seperate VLF receiver,
it converts the received 10 - 14 KHz RF to audio, the pinout is easy enough
to figure out, +, ground, antenna, audio output, connect the radiosonde to a
battery and probe around the Omega board pins with a meter and speaker, from
what I recall, the battery is reverse polarity ~18VDC, uses a nine volt
battery clip.

Will trade for other meteorological devices or Ramsey HR-xx or QRP-xx
crystal controlled QRP transmitter or Direct Conversion RX, or ???

Kurt