Amateur Radio Weekly – Issue 205

Digital HF voice: FreeDV 700D released
Digital really does handle some nasty fading, and it really does work better than SSB in many cases.
Rowetel

Simple 1:1 Choke Balun
This is a very simple 1:1 Choke Balun for portable operation.
M0PZT

The spreading ‘eHam disease’
I’ve written before about the eHam policy of protecting the raving insane posts of a click of forum trolls.
K9ZW

D-Star QuadNet Array
You can Group Route to any Smart Group, whether you are operating from your home, or you are operating a mobile rig.
QuadNet

The Mission RGO ONE: A new 50 watt all mode HF transceiver
The idea of this project was inspired by old TEN-TEC radios with 9MHz IF – their perfect analogue design and crystal crisp audio both CW and sideband.
The SWLing Post

Radials mitigate feedline and mast currents, tests reveal
This suggests radials of 1/4 and 3/4 wavelength do a good job of immunizing the antenna from circumstances that might encourage RF currents down the mast or coax. Radials of 1/12 wavelength do nothing.
Ham Radio . Magnum Experimentum

Long delayed echo on 50Mhz 6m
Initially I didn’t know what it was, and I still don’t know why it was. If nothing else it was extremely interesting, so I’m sharing this short article about a Long Delay Echo (LDE).
OH8STN

HF Ham Radio on a budget
This should come in around $100-150USD. If you simply don’t want to do Morse code, there’s the option of the BITX40, a very inexpensive HF SSB rig that runs on 40 meters.
KE6MT

Video

N1SPY chases mini satellites on a budget
Using $25 worth of equipment to chase signals from cubesats which are the size of a coffee can.
N1SPY

VK2TPM on FreeDV 700D
We could barely hear each other in Single Side Band mode but FreeDV 700D is pretty good once your ear gets used to it.
YouTube

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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 http://www.hamweekly.com.

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