Amateur Radio Weekly – Issue 63

Large plasma tubes confirmed to exist above the Earth’s atmosphere
These structures are the likely cause of unwanted signal distortions affecting both civilian and military satellite-based navigation systems.

Britain’s pirate radio stations are not going down without a fight
Tied to a branch in the canopy of an old birch tree is the transmitter for Rage FM, Taunton’s only pirate radio station. Owning it could get Alfie, the proprietor, two years in prison.

Tytera TYT MD-380 DMR Handheld review
DMR, Digital Mobile Radio, seems to be taking off as the digital voice mode of choice, and the arrival of the Tytera TYT MD-380 DMR is great news.
Essex Ham

DMRUK: all digital worldwide TDMA repeater network
Time-Division Multiple-Access (TDMA) preserves the full channel width and divides it into alternating time slots that can each carry an individual call.

Switching power supply noise more common than power lines
LED-type lightbulbs that are becoming more common also can be noise-generators.

Not all Jameco power supplies are linear and regulated
I cracked open one of these to see what was up here and sure enough it was using a MC34063A inverting switching regulator.
The SWLing Post

High performance radio – operating the Hilberling PT-8000A
The Hilberling PT-8000A Transceiver is much like a new high-end AC Cobra sports car – a classic format product fine-tuned to as close to perfection as the manufacturer can engineer, executed with near-jewelry precision & finish.
With Varying Frequency

Flex 6500: 11m band opening
I thought I had seen band openings before, but this is what I saw with the new Flex 6500 this morning.

How to

Paper clip paddles [PDF]
The actuation is reliable and the contacts seem to be reliable as well. I plan to switch to this new paddle for at least my portable work.
K8AG / North American QRP CW Club

Ten steps to mastering Morse Code
James Altucher is one of those guys that seems to be able to do just about anything. Here’s how I’d apply his advice to mastering Morse Code.


Testing the Yaesu FT-991 on 2m
We compare the FT-991 receiver performance on 2m with two other radios. Justin, G0KSC, from Waters & Stanton, puts them through their paces.
Waters & Stanton

Siru SDR20 Multi-Touch Software Defined Radio
Siru Innovation’s SDR20 multi-touch radio is a high performance scalable software defined radio platform for designing and deploying next generation radios.

Amateur Radio Weekly is curated by Cale Mooth K4HCK. Sign up free to receive ham radio's most relevant news, projects, technology and events by e-mail each week at

Leave a Comment

Subscribe FREE to's
Amateur Radio Newsletter
News, Opinion, Giveaways & More!

Join over 7,000 subscribers!
We never share your e-mail address.

Also available via RSS feed, Twitter, and Facebook.

Subscribe FREE to's
Amateur Radio Newsletter

We never share your e-mail address.

Do you like to write?
Interesting project to share?
Helpful tips and ideas for other hams?

Submit an article and we will review it for publication on!

Have a ham radio product or service?
Consider advertising on our site.

Are you a reporter covering ham radio?
Find ham radio experts for your story.

How to Set Up a Ham Radio Blog
Get started in less than 15 minutes!

  • Matt W1MST, Managing Editor

Sign up for our free
Amateur Radio Newsletter

Enter your e-mail address: