Transcript REVERSE BEACONING
REVERSE BEACONING and WSPR
Copyright 2010 Fred Cunningham K1FC 1
Why Reverse beaconing
– Real time monitoring propagation – Find out where you are being heard – Compare antennas or equipment Copyright 2010 Fred Cunningham K1FC 2
What is a reverse beacon
• A reverse beacon is a receiver feeding a computer connected to a reverse beacon network.
– Anyone can run a reverse beacon, including a non ham.
– Each network requires its own special software Copyright 2010 Fred Cunningham K1FC 3
REVERSE BEACON NETWORKS
• Pskreporter.info
• PropNET.org
• Reversebeacon.net
Copyright 2010 Fred Cunningham K1FC 4
PSK Reporter
• Receives your transmitted callsign and reports it to Pskreporter.info
• Pskreporter.info displays where received in near real time.
• Works with various digital modes including cw Copyright 2010 Fred Cunningham K1FC 5
PSK REPORTER MAP
Copyright 2010 Fred Cunningham K1FC 6
Copyright 2010 Fred Cunningham K1FC 7
Copyright 2010 Fred Cunningham K1FC 8
Copyright 2010 Fred Cunningham K1FC 9
Implementing PSK Reporter
• Fldigi 3.2. and some other digital programs have PSK reporter built in. Check the Pskreporter site for more info.
– To turn it on in Fldigi go to Configure-Rig Control-Misc and check autospotting. – Be sure you have entered all 8 figures for your sub-square.
– If you are using the computer for rig control you can also report frequency. Copyright 2010 Fred Cunningham K1FC 10
PropNETpsk
• PropNETpsk free program – Automatically monitor up to 16 blocks of frequencies that you define – Automatically send reports to PropNET.org
• Can also be set to beacon 6 to 15 times/hr – Will not beacon on an occupied frequency • Can be used in QSO mode – Will alert if it detects your call Copyright 2010 Fred Cunningham K1FC 11
PropNET Screen
Copyright 2010 Fred Cunningham K1FC 12
PropNET Map
Copyright 2010 Fred Cunningham K1FC 13
Reversebeacon
• • Primarily for cw • Uses the program Aggregator to extract information from CW Skimmer Copyright 2010 Fred Cunningham K1FC 14
CW RECEIVING SOFTWARE
• CW Skimmer – Used with a SDR can decode up to 700 signals at once. – With an analog receiver can decode about 24 signals at a time – There is a 30 day free trial and a $75 activation fee.
– It can be run with Aggregator to report to reversebeacon.net
• Download from reversebeacon.net
Copyright 2010 Fred Cunningham K1FC 15
CW SKIMMER 3kHz
Copyright 2010 Fred Cunningham K1FC 16
SOFTROCK
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RAW Output
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FILTERED FROM 1 LAND
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REVERSE BEACON MAP
Copyright 2010 Fred Cunningham K1FC 20
WSPR
• A method of measuring propagation worldwide with a system of beacons and special software.
– Not suitable for QSO’s • Reports to wsprnet.org
• A good overview can be found at g4ilo.com/wspr.html
Copyright 2010 Fred Cunningham K1FC 21
WSPR MAP
Copyright 2010 Fred Cunningham K1FC 22
How WSPR Works
• Weak Signal Propagation Reporter • Mode is MEPT-JT Manned Experimental Propagation Transmitter Hz band window.
minutes. watt is 30dBm) – Joe Taylor • Low speed FSK about 6 Hz bandwidth in a 200 • Each transmission just under 2 minutes.
• Time synced within 1 sec. Starts on even – Data is callsign , 6 character locator, power in dBm (1 – Can be run in receive mode only.
– Can decode signals below the noise.
Copyright 2010 Fred Cunningham K1FC 23
WSPR RECEIVING SOFTWARE
• /www.physics.princeton.edu/pulsar/K1JT/w spr.html
• WSPR 2.11 plus FMT – FMT is from the ARRL to very precisely measure frequency.
Copyright 2010 Fred Cunningham K1FC 24