Portable Radio Go-Box – Part 1: Planning
Lately I’ve been throwing ideas around about building a radio go-box of sorts but I keep running into the same two problems, cost of buying extra radios just for the go-box and size limitations...
K4NHA Blog
KF9F Stealth 2m Flower Pot Antenna
This has to be one of the stealthiest antennas I’ve seen yet. Watch out for RF burns when smelling the flowers! http://www.hamuniverse.com/kf9f2meterflowerpot.html
New Antenna Mast
I set out today with the intentions of simply adding a 3-element yagi to my existing mediocre antenna mast just to ensure I can get into one of my local repeaters until warmer weather...
Coax Crimp Connectors Strike Again
The third SMA jumper has bit the dust. These things just can’t handle the stress of being connecting to larger coax or having coax weight on them. Next time I’ll make sure...
Directional Antenna Magic
Directional antennas continue to amaze me as I learn about RF and how different antennas perform different functions. This afternoon I threw my 2m/70cm yagi up on an old camera tripod and connected a...
Wouxun KG-UV8D Disassembly
I recently disassembled my Wouxun KG-UV8D in hopes of helping out the low audio reports I’ve been receiving when using this HT. I found hit or miss articles stating that enlarging the mic hole...
12v Battery State of Charge
The table below shows the approximate state of charge based on voltage of an open circuit, meaning the battery is not currently under any load and is not hot from previous load. While this...
Moxon Antenna Calculator
Stumbled across a good Moxon Antenna Calculator this morning which was created by Paul Evans W4/VP9KF. Check the calculator and his site out here: http://w4.vp9kf.com/moxon_design.htm
Arduino for Ham Radio – Review
As promised in my earlier post about the Arduino for Ham Radio book I’m back with a review. Overall I am very pleased with the book. It is well written and contains many projects...
