[Moon-Net] MAP65 survey

Joe Taylor joe at princeton.edu
Thu Apr 8 17:39:54 CEST 2021


Hi Greg,

On 4/8/2021 11:12 AM, Greg N9AGC wrote:

> Can you or one of the other avid MAP65 users give a brief overview of 
> what makes it so useful or why us newbies should invest in a new 
> learning curve.

WSJT-X or WSJT decodes signals in a spectral slice up to 5 kHz wide.

MAP65 decodes all the JT65 signals in a passband up to 90 kHz wide.  You 
get a panoramic view of all the EME activity on the band.  There's no 
need for internet access in order to find stations to work.  On 144 and 
432 MHz, where linear polarization is used for EME, MAP65's adaptive 
polarization capability means that you don't have to wait for favorable 
Faraday rotation.  You see up to twice as many signals as with a 
single-polarization system.

Lots more details in the MAP65 User's Guide, here:

https://www.physics.princeton.edu//pulsar/K1JT/MAP65_Users_Guide.pdf

... and in References 10, 18, 19, 21, 22, 23, and 24 here:

https://physics.princeton.edu/pulsar/k1jt/refs.html

	-- 73, Joe, K1JT


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