Signal Identification Guide
“This wiki is intended to help identify radio signals through example sounds and waterfall images. Most signals are received and recorded using a software defined radio such as the RTL-SDR, HackRF, BladeRF, Funcube Dongle, USRP or others.
Anyone can edit this wiki, so if you see missing or wrong information please feel free to correct it by clicking the ‘edit’ button at the stop of the signals page. When doing an edit you will be asked to answer a very simple spam prevention question which will appear at the top of the screen after clicking on Save page.
You can also discuss the signals by using the discussion tab at the top of every page, or just by using the comments box at the bottom of this page.
If you would like to contribute an example signal, please contact me at rtlsdrblog__AT__gmail__DOT__com and send a waterfall image, sound or small IQ sample and any information about the signal that you have. Note that it will probably take me 1 – 3 months to get to your signal. If you want to add a signal yourself please consult the instructions here – Adding An Example Signal. Don’t worry too much if you mess up the wiki syntax, i’ll eventually patrol all the pages and fix them up if something is wrong.”
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Review
Review and test of Buddipole Deluxe Antenna
Buddipole Deluxe Antenna Review This is the testing and review of the Buddipole Deluxe antenna available at Buddipole.com. The Buddipole™ Deluxe Packa... Read more
What”s a Transponder, Anyway?
A question from an Oggie prompted this look at the use of transponders in amateur radio. Read more
Digital Cables and Connectors we see and use in the Ham Shack
“Ken, “Digital Dorsey”, KA8OAD talks about various types of USB, HDMI and DVI cables used around the radio shack.” Read more
Digital Modes
A New Spin on JT Alert HRD Logbook and WSJT X
WSJT-X for rig control. There’s no need for HRD rig control to be running. Just HRD Logbook, WSJT-X and JT Alert. Read more
Everybody’s Trying the New FT8!
“FT8 is the newest weak-signal mode from Joe Taylor, K1JT, and friends. It operates very much like JT65 but is four times faster and more automa... Read more
FT8 – Tipping Point for Ham Radio?
This is a view from NASA of the sun today, October 9, 2018, and I am making 10m DX contacts one after another. Zero sunspots but working DX on... Read more
The FT4 Protocol for Digital Contesting by K1JT
Joe Taylor, K1JT, Steve Franke, K9AN, and Bill Somerville, G4WJS April 22, 2019 Introduction: FT4 is an experimental digital mode designed specificall... Read more
Antenna
7 EL. DELTA LOOP “THE CLAW”
7 elements full size arranged on a single boom, divided into 2 parts for 20 m, 2 elements for 15m and 3 elements for 10m in spotlight radiator configu... Read more
160m/80m Transmit Vertical by AC0C
Adding topband to a full sized elevated 80m vertical and putting N6LF’s QEX data to the test This antenna started out as an 80m vertical... Read more
Antenna experiment – Fractal Quad for 28 Mhz band
“After reading many antenna articles in the Internet and a couple ARRL antenna books I got interested in physically small HF antennas. My... Read more
Mobile Antenna Little Tarheel HP
” When properly installed on your vehicle this antenna will provide continuous coverage from 7.0 to 54 MHz with the supplied whip. The Li... Read more
Equipment
MFJ Digital SWR / Wattmeters – MFJ-845/847
MFJ-845/847 New MFJ Digital SWR/Wattmeters display Forward, Refelected Power, SWR and Battery life all in a single glance! Large 1/2” forward power d... Read more
New ! Ameritron SDC-104 Screwdriver Controller
Ameritron SDC-104 Super accurate tuning . . . Ultra-fast . . . Extremely Reliable . . . 88 memories . . . StallProtector . . .Fully RFI protected . .... Read more
M-1 Yaesu Reference Microphone
The M-1 Reference Microphone is the ultimate, high-quality, innovative desktop microphone, dedicated to the most discriminating Ham Radio Operators. I... Read more
XPA125B 125W Solid State Linear Amplifier
Xiegu XPA125B is a small and lightweight 125 watt HF and 50 MHz solid state linear power amplifier perfect for your QRP radio or low power SDR... Read more
