WSPR - Weak Signal Propagation Reporter

Contents:
  1. Zoltán Dóczi - HA7DCD Raspberry Pi Shield
  2. Joe Taylor K1JT - WSJT-X Application
  3. Kits for Rpi WSPR Transmitters
  4. Building a qrpi daemon on Rpi to run the wsprry application
  5. Network Time Protocol
  6. QRPGuys-EZ-WSPR-Pi-Adapter


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Zoltán Dóczi - HA7DCD Raspberry Pi Shield

QRPi – A Raspberry Pi QRP TX Shield Design - Zoltán Dóczi, HA7DCD:
DCC2015-QRPi-HA7DCD.pdf

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Joe Taylor K1JT - WSJT-X Application

Joe Taylor :
http://physics.princeton.edu/pulsar/K1JT/wspr.html

WSPR 2.0 User’s Guide - Joe Taylor, K1JT :

http://physics.princeton.edu/pulsar/K1JT/WSPR_2.0_User.pdf

WSPR 2.1: Supplement to User’s Guide - Joe Taylor, K1JT - Last updated: October 7, 2010:
http://physics.princeton.edu/pulsar/K1JT/WSPR_2.1_Supplement.pdf

WsprNet:
http://wsprnet.org/drupal/

Low-Cost WSPR with Raspberry Pi and SDR:
http://sjcars.org/blog/wp-content/uploads/2016/03/WSPR.pdf

ARDUINO WSPR:
https://www.george-smart.co.uk/arduino/arduino_wspr/

WSPR Without Tears:
https://tapr.org/pdf/WSPR-WIthout-Tears-30m-and-40m.pdf

TAPR Product Order Page:
https://tapr.org/?product=wspr-without-tears-30-or-40m

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Kits for Rpi WSPR Transmitters

QRPGuys EZ WSPR Pi:
https://qrpguys.com/ha7dcd-ez-pi-wspr

Raspberry Pi WSPR Beacon – WsprryPi:
http://www.vk3bq.com/2014/08/12/raspberrypi-wspr-beacon-wsprrypi/

RF Filter for a Raspberry Pi Transmitter:
http://rockingdlabs.dunmire.org/exercises-experiments/bpf-analysis

Kit to build a Universal Band Pass Filter - Available for 10, 12, 15, 17, 20, 30, 40, 80 and 160 meters.:
https://www.kitsandparts.com/univbpfilter.php

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Building a qrpi daemon on Rpi to run the wsprry application

This transmitter implements WsprrPi Raspberry Pi, bareback LF/MF/HF/VHF WSPR transmitter aplication to make a very simple WSPR beacon from your RasberryPi by connecting GPIO port to Antenna. It is theorically capabe of operating on bands from 0 to 250 MHz. The Github respository can be foulnd at: https://github.com/JamesP6000/WsprryPi

Build the wsprry application on the Rpi3:















After all that setup DO A BACKUP!:


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Network Time Protocol

The Raspberry Pi WSPR transmitter using NTP based frequency for calibration. An accurate clock is essential for sucessfull operation of the Weak Signal application. This relies upon NTP functioning accurately. The ntpq utility program is used to query NTP servers which implement the recommended NTP.

http://doc.ntp.org/4.1.0/ntpq.htm

Check that ntp is available:


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QRPGuys-EZ-WSPR-Pi-Adapter

QRPGuys Project to build kit:
QRPGuys-EZ-WSPR-Pi-Adapter

QRPGuys EZ WSPR-Pi Adapter Assembly Manual:
https://qrpguys.com/wp-content/uploads/2019/04/wspr-pi_assy_040119.pdf

QRPGuys EZ-WSPR Pi - 19 JUNE 2019 by KE6MT:
https://www.ke6mt.us/2019/06/new-equipment-qrpguys-ez-wspr-pi/

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Tracking WSPR Transmission Worldwide

Locate stations that are receiving your signal
http://wsprnet.org/drupal/wsprnet/map

http://wsprd.vk7jj.com/

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Glenn Lyons VK4PK
glenn@LyonsComputer.com.au
Ver:gnl20200317 - pre published v0.9