N1SU APRS Digipeater & TX IGate

N1SU APRS Digipeater & TX IGate

Configuration and setup overview by Jason Buchanan

Seattle APRS frequencies

440.800 UHF - 9600 baud
144.390 VHF - 1200 baud

If you have a radio capable of UHF 9600 baud for APRS (Kenwood TH-D7A, TH-D72A, TH-D74A, TM-D700, TM-D710, TM-D710GA, Yaesu FTM-400XDR, VX-8... others?) put it to good use! UHF APRS is alive and well in Seattle.


APRS seismograph project uses a Raspberry Shake seismograph model RS1D with rsudp to report intensity of STA/LTA ratios with bandpass filtering 0.1 to 3.0 Hz.
Intensity values are not Richter or Modified Mercalli (MMI) Scale. STA/LTA algorithms calculate a ratio of the short term average of station noise to the long term average.
A disclaimer about STA/LTA earthquake detection trigger

APRS geiger counter project Inspired by S55MA Raspberry Pi project. See S55MA-10 on APRS.fi

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N1SU APRS Digipeater & TX IGate overview - Updated: 27-Apr-22
(C) 2022 jsb@digistar.com

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