So, after putting my cell phone in to use and running RTL-SDR radio listening apps, it was time to make 2 antennas for the dongle, the original one being Poor.
So I got me a coffee, nerves of steel, and started soldering on two MCX window Connectors for RG-174 cables.
The wire was sourced from a surveillance camera installation cable. It has 3 single conductors and a coax wire that seems to be RG-59 75ohm one.
Continue reading “HAMsmithing – DIY Receive-only Antennas for RTL-SDR Dongles”
Hello! I am starting new series describing my ventures to the digital radio world. I will be using the weekend down time to do, try, photograph and write short articles on the matter.
But do not expect many of them. I do not own HF equipment yet, and my patience with installing PC programs that do not work has worn out. So, I am new to Smartphones so I am still like to play with them. And we better have something to do with them when the lights turn off, don’t we?
If you haven’t heard of RTL-SDR receivers for your PC, the basics are these. One gets an dirt cheap RTL TV dongle and uses it with a freeware program like SDRTouch to scan the VHF & UHF spectrum. Practically some people repurposes them by writing their own programs for scanning.
The output is then displayed on the screen with the mesmerizing view of a rolling waveform graph.
PC running SDRSharp Screen Grab
Then things get more complex as they develop the programs to scan by their own, plugins to record, filters to de-noise, and plug-ins to decode digital modes.
Continue reading “Digital Weekend – Turning your Cell Phone into a Scanner with RTL-SDR”
While I explore the DMR radio concept and its usefulness to Survivalists and Preppers, it is good to keep you up-to-date with links you can peruse.
Amateur Radio Guide to Digital Mobile Radio by W2XAB
DMR FAQ by VA3XPR
What is DMR by Radiosification (check this guy’s other videos too).
Ham Radio 360 podcast on DMR with K1RJZ