Author: AD5GG

3

Switch-Mode vs Linear Supplies

Amateur radio transceivers demand power supplies which have a large current capacity. The average 100 watt radio transceiver requires over 20 Amps when in transmit mode. Overview A linear power supply uses a large...

9

Yaesu FT-991 upgraded to FT-991A

I received my FT-991 back from Yaesu in the form of an FT-991A. They do not replace the front bezel, but the radio has a new sticker on the bottom showing that the model...

4

Alpha Delta Switch Arc-Plugs

I recently bought a couple of Alpha Delta coaxial switches, and noticed they come with a built-in surge arrester which can be replaced after a surge. They call them “Arc-Plugs”. These are on sale...

2

Behringer XM8500 for Ham Radio

My recent foray into amateur radio audio quality has had me looking at microphones, and since the audio process I just bought has an input for dynamic microphones, I got to researching those. I...

UR6QW 8-band EQ v5 29

UR6QW Audio Processor

Please read about how you can help UR6QW in Ukraine here Edit: the setup which I use now is detailed in this post. Read on for the review…Also: UR6QW EQ Version 7 is out...

1

LMR-400 for Ham Radio?

I see lots and lots of posts from people extolling the virtues of using LMR-400 coaxial cable in their ham radio setups. LMR (Land Mobile Radio) cable was developed by Times Microwave Systems as...

0

WSPR Antenna Comparison

Having recently raised a Off-Center Fed Dipole, and figured out how to use WSPR with my FT-991, I thought it would be interesting to compare the OCFD with my 35′ End Fed Wire. Getting...

0

New Call Sign

New call sign is official, so the site changes to reflect it! Since I’ve been getting into HF more and more, having an eleven-syllable call sign has been rather a chore. I managed to...