MAP65
WSJT

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Description

MAP65 works together with suitable hardware that converts RF to baseband.  The hardware/software combination implements a wideband, highly optimized receiver for the JT65 protocol, with matching transmitting features using a standard SSB transceiver.  MAP65 can be used in both single-polarization and dual-polarization systems.  If two polarization channels are available, MAP65 determines and matches the linear polarization angle of each decodable signal.  This capability provides a major advantage for efficient EME ("Moonbounce") communication on the 144 and 432 MHz bands.  A single-channel system works extremely well for 23 cm EME, displaying all signals (both CW and JT65) in the sub-band 1296.000 to 1296.090 MHz and decoding the JT65 signals.

MAP65 can accept input signals directly from a soundcard capable of sampling at 96000 samples per second.  Two audio channels (one "stereo" channel) are required for a single polarization system, and four channels for dual polarization.  Optionally, Linrad (by SM5BSZ) or SDR-Radio (by HB9DRV) can be used as convenient and highly effective "front ends" between receiver hardware and MAP65's data input.  Linrad offers extremely effective noise-blanking capabilities, especially when strong signals are present in the receiver passband.  SDR-Radio offers user-friendly control of supported receiver hardware, as well as many useful and attractive displays.  MAP65 also supports the FUNcube Dongle and several all-digital receivers including the SDR-IQ and Perseus.

The latest release, MAP65 v3.0, includes mode Q65, which is not described in the User's Guide.  MAP65 is available only on the Windows platform, and is automatically installed along with WSJT-X.

 The following hardware and software combinations are known to work well with MAP65:

  • WSE with Linrad or direct input from 4-channel soundcard
  • IQ+ with Linrad or direct input from 4-channel soundcard
  • SDR-IQ, other RFspace radios, or Perseus with Linrad or SDR-Radio
  • FUNcube Dongle with Linrad, SDR-Radio, or direct USB input
  • SoftRock or similar with Linrad, SDR-Radio, or direct input from 2-channel soundcard

    • MAP65 User's Guide

    Downloads for Windows

    MAP65 v3.0 is installed automatically as part of the Windows package for WSJT-X, version 2.5.0 or later.


    ©2001-2021 by Joe Taylor, K1JT