Dan Romanchik - KB6NU
Although I’ve been licensed for a long time, I was not very active until I participated in our club’s 2002 Field Day 2002 operation. There, I made my first CW contact in several years and got hooked on amateur radio all over again.
Since then, I’ve become very active:
I’ve made more than three contacts per day on average since Field Day 2002, mostly on CW.
I blog about amateur radio at KB6NU.com.
I teach ham radio classes.
I love helping people have more fun with ham radio. If you ever hear me on the air, I hope that you’ll give me a call.
Thoughts from our Presenters
Last night on 40m CW, I worked WB5RY. I’m pretty sure this was the call he gave me because he repeated it several times during the contact. He gave his name as Bill and his location as Fayetteville, GA.
When the call didn’t show up on QRZ.Com, I got a little suspicious. Now, I know that not everyone shows up on QRZ.Com, as they ban folks every once in a while. So, I looked up the callsign in the FCC ULS database. The database says that WB5RY was last issued on 11/14/2006 to a Richard Ybarra and was cancelled on 2/9/2007.
General Class control operator frequency privileges, primary and secondary allocations
As you know, on the 80m, 40m, 20m, and 15m bands, some frequencies are reserved for Advanced and Extra Class licensees. On the other bands, however, General Class licensees have exactly the same privileges as Advanced and Extra Class licensees.
RF safety principles, rules and guidelines, routine station evaluation
If you learn nothing else from this manual, I hope that you learn to be safe when setting up your station, building antennas, or operating a radio. It’s unfortunate, but hams every year lose their lives in accidents that could have been prevented. In this chapter, we will cover RF safety and electrical safety.
Volunteer Monitoring Program, HF operations
In 2019, the Volunteer Monitoring Program is set to replace the ARRL’s Official Observer program. The Volunteer Monitoring Program works with the Federal Communications Commission (FCC) to monitor the amateur radio bands for rules violations. It’s how amateur radio operators officially self-police the bands.
Interference with consumer electronics, grounding, DSP
At some point or another, your amateur radio station will interfere with a radio or television set, a PA system, or a telephone. A SSB transmission generally causes some kind of humming, while a CW transmission can cause humming or clicking. Sometimes this may be your fault, other times it may be the fault of the device. In either case, you should do everything you can to eliminate this interference.
Station operation and set up
Modern HF transceivers have features that make operating a breeze, but to use them properly, you have to know when to use them and how to use them. The notch filter is a good example. The notch filter actually introduces a notch into a receiver’s passband to block interfering signals.
Sunspots and solar radiation, ionospheric disturbances, propagation forecasting, and indices
Amateur radio communications are subject to the whims of nature. Many different phenomena affect the propagation of signals, and it behooves you to know a little something about the phenomena. Doing so will make you a more effective amateur radio communicator.
To make their signals more effective, some amateurs use directional antennas. Directional antennas, such as Yagis and quads, direct most of the power output in a particular direction, making the signal seem more powerful. They are also more sensitive to receiving signals from a particular direction. This feature makes them useful for reducing interference. All you have to do is turn the antenna away from the source of interference.
Feed lines are the cables used to connect antennas to receivers and transmitters. The most important characteristic of a feedline is its characteristic impedance. Many different factors affect the characteristic impedance of a feedline, including the distance between the center of the conductors and the radius of the conductors.
Last weekend, I read several Tweets and several reddit posts of guys boasting that they were able to copy the slow-scan TV transmissions from the International Space Station. Since many of these guys were using handhelds and cellphones, this didn’t sound like rocket science (pun intended).