Ham Radio

Ham radio causing USB disconnect

For a while now, whenever I’ve had my PC on, and I’ve been talking on SSB (several bands), I hear occasional Windows USB connect/disconnect sounds. Generally a disconnect sound whenever I start talking, and then a connect sound when I finish. You can poke around in the Windows Event Viewer to try and figure out […]

Read More

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 heavy transformer to step down the input high voltage AC to a level close to the desired output. From there, the […]

Read More

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 is a FT-991A and it has a new serial number. I’ve attached a video of the radio in action, and also […]

Read More

IC-7300 Average SSB power modification

If you Google the title of this post, I’m sure you’ll come across some results which detail a very simple modification you can make to your IC-7300 which some believe increases the RF output power. This is vague and misleading. The PEP (Peak Envelope Power) of the IC-7300 is rated at 100 watts. This would […]

Read More

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 didn’t go looking at Heil Sound for microphones, since I wanted to do this on a budget, and you can certainly […]

Read More
UR6QW 8-band EQ v5

UR6QW Audio Processor

Edit: the setup which I use now is detailed in this post. Read on for the review… I recently bought version 5 of the 8-band EQ from UR6QW in Ukraine. This is a high quality audio processor for your ham radio. I chose to purchase the IC-7300 version for my SSB voice comms. The device […]

Read More

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 a high quality coaxial cable which can be used with excellent loss properties at frequencies greater than 1 GHz. If your […]

Read More

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 WSJT-X to work with the FT-991 was a bit of a challenge, but I mostly blame the Glenmorangie. Some handy links […]

Read More

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 cut it down to seven with the new call sign AD5GG, which is much less of a mouthful when trying to […]

Read More

Coaxial Cable Length Does Not Change Antenna SWR

I’ve heard this for decades, and I first heard it when I got into CB radio when I was a kid. You’ve gotta to cut your coax to the right length if you want low SWR’s More accurately, if you are driving a mismatched load (e.g: a poorly tuned antenna) it depends where along the […]

Read More