Posts Tagged ‘Tech Tip Thursday’

Q: If RF is a high frequency AC signal, why are there plus and minus signs on a balun? A: Keep in mind that we are usually connecting a ‘BALanced’ antenna to the ‘UN-balanced’ coaxial cable, hence the term BALUN. So, for most regular applications on a single antenna that is ground independent, such as […]


My new ICOM IC-7300 transceiver has been loads of fun, but the scope was not displaying the frequency correctly for signals I was copying. I was listening to a local AM signal on 570 kHz and had to offset the frequency display by 1 or 2 kHz to have it sound intelligible. Also, the CW signals […]


If no one is on the repeater and you would like to start up a conversation, simply call the station you wish to talk to. Say “KD8XXX, this is KE8XXX calling.” Or, if you want to put out a general call to anyone, simply key up and say your call sign. Don’t be a “kerchunker” […]


A “Cadweld One Shot” is ideal for making permanent, reliable connections to your ground rods. It’s a very cool process that is easy to do and will impress even the staunchest members of your radio club! Using a “One Shot” will provide a very high quality exothermic connection for all of your outdoor ground rod […]


Yup, the sunspot cycle is at a low. That means that for some bands, the term “DX” will not have the same meaning as before. Basically, the bands from 15 through 6 meters are dead as far as skip and DX go. When band conditions drop, weak signal work becomes more important than ever. You […]


Dipole and broadband antenna efficiency is a constant debate. Efficiency most commonly is watts in, watts out. It’s well known that to radiate well, horizontal antennas should be at least a quarter-wave above the ground, at minimum, to reduce ground losses. With this in mind a 40 meter monoband dipole antenna needs to be at […]


Much of the newer ham radio receiving gear uses F-Connectors. Most everyone is familiar with this type of connector. You find them on the back of your TV set, your PC’s Router, cable modem, DVD recorder and more. One thing in common with using the F-Connector in these applications is the frustration of trying to […]