Many thanks to SWLing Post contributor, Jarno de Haan, who shares this US Army Training Film about circuit testing via YouTube. If you own vintage radio gear, you should check this out:
Many thanks to SWLing Post contributor, Bruce F, who writes:
HI Thomas, I thought I would put this idea out to your site – in case it isn’t already there. It’s a brilliant solution to the apparent lack of a working Air Band scan function on the Tecsun PL-660. Note – I did not come up with this idea, but came across it in a Yahoo group.
It IS possible to scan the Air Band on the PL660, as long as you have picked out WHICH Air Band frequencies are in use in your area. There are websites which list these frequencies for each airport:
Here’s how to set up the PL-660:
- Pick an empty page in the Memory.
- Put in a shortwave frequency in the first empty space; the “00” slot.
- Then fill in the succeeding spaces on that page with the Air Band frequencies you’ve chosen.
- Now go back to the “00” slot and hold down the scan button.
Works on my set!
What a cool trick! I’ve lent my PL-660 to a friend, but as soon as I get it back, I’ll also try this trick by setting up a page dedicated to my local aviation frequencies!
Remember when I made a plea for Pi 3 projects just last year––?
Although many of you suggested some great projects, I never actually got around to doing any of them. Now, don’t get me wrong––I wanted to, of course, but simply got involved with reviews, NPOTA, two months of travel…and, well, life.
Then, last week at the Winter SWL Fest, a common theme emerged in both presentations and discussions: the numerous applications of the super-cheap, and thus super-ubiquitous, RTL-SDR dongle. In their engaging presentations, both Dan Srebnick and Mark Fahey––SWLing Post contributors and good friends––focused on the power of the RTL-SDR, expounding upon some simple, inexpensive applications in their forums. It was inspiring. Also, buddy Eddie Muro showed me just how easily an ADS-B receiver could be set up using an Android phone.
Back to the Pi. Though I was already aware the Pi 3 and RTL-SDR could be united to make an ADS-B receiver, watching Mark Fahey talk about how simply one could feed the FlightAware network with ADS-B data finally hooked me. Why not, indeed? Here was fun to be had!
I couldn’t get the idea out of my head, so Tuesday, the day following my return, I set the afternoon aside. I rolled up my sleeves, and with my long-neglected Pi 3 and RTL-SDR, got ready to cook up a flight sensor.
I figured I was probably missing a component or two, and fully expected the process to be complicated, but decided I wouldn’t let this deter me. And guess what? I was wrong on both counts!
Note: I used this excellent PiAware ADS-B feeder tutorial to build my system–it’s detailed and doesn’t make the lofty assumption that you actually understand formatting cards, building disk images, and/or editing config text files.
Directions below are a highly distilled version of that tutorial. If you’re new to all of this, as I was, follow these directions instead of the above tutorial. Be aware that the directions assume you’re using the Pi 3 and a Windows PC to burn the image file.
After my ADS-B receiver had been in operation for a while, I was very impressed with the data FlightAware was able to pull from my ADS-B feed. I was equally impressed with the number of distant aircraft I could receive with such a modest antenna––a number of them up to 135 miles from my location. Once I find a suitable outdoor location for the mag mount antenna, currently indoors, I expect the reception distance will increase significantly.
You can also connect to the live feed from your ADS-B receiver through your local network. Here’s a screenshot of my live data:
It works, but clearly isn’t ideal. Since the Pi 3 connects to my network via WiFi, I intend to install the full ADS-B receiver system into a small weatherproof case and mount it outside. My Pi 3 has no case, so I purchased an inexpensive one yesterday. I should be able to feed it power with an outdoor outlet…but I’m very tempted to experiment with making it solar powered. To find out if this is a logical move, I need to observe and measure the power requirements first, and will be doing that in the next few weeks.
Meantime, I’m thoroughly enjoying watching the (amazingly busy) traffic in the skies…and the kid in me relishes it!
Thanks, Mark, for the great idea!
Have any SWLing Post readers attempted to build a solar-powered or outdoor ADS-B receiver? Please comment!
Many thanks to SWling Post contributor, Gary DeBock, who shares the following note about his latest FSL antenna experiment:
Medium wave DX FSL antenna phasing experiment– 1593-CNR1 (Changzhou, China, in Mandarin) boosted up to strong (S9) peaks by two 5 inch “Frequent Flyer” FSL’s at 1435 UTC on February 25th in my frozen back yard in Puyallup.
Unlike other high gain MW antennas, the FSL’s can provide cumulative gain at very close inductive coupling ranges.
Amazing, Gary! Thank you for sharing this excellent bit of DX!
For those of us who like to tinker with the Raspberry Pi, this looks like a fun weekend project.
It’s multi-step, but I believe this project could be completed by almost anyone–you wouldn’t have to be a Raspberry Pi or Python guru (code snippets can be downloaded, for example).
Here’s a short video demonstration of the finished Raspberry Pi Touchscreen WiFi Radio: