This is the first new HF radio I've ever purchased. I've been licensed to use HF bands for about 16 years at this point, but I've only owned 6 other HF rigs in that time; all purchased used. I've owned a number of Yaesu VHF mobile and handheld radios but only one HF and that...
As radio developed further, a need for regulating the available frequencies became apparent and amateur transmissions were restricted to a range of shorter wavelengths, essentially crippling them for long distance communications at the time. Hams were given access to “200 meters and down,” meaning ...
As the radio is clearly designed for mobile-style operation, the memory channels can easily be used to store 10-meter repeater stations (along with the necessary offsets), CB channels, as well as storing simplex frequencies to quickly tune in desired frequencies for scheds with other amateur r...
The imagery presented on our main web page, is NOAA APT imagery, which is transmitted by NOAA satellites at radio frequencies of 137.50, 137.62 or 137.9125 MHz, FM. You may have noticed that your broadcast FM radio tops-out at 108MHz. If you could keep spinning your radio dial beyond 108...
Once again, I don't have any free frequencies for today's 20m net at my home QTH. The 20m band in the General portion (where we run these nets) is rammed solid here. If I can't find a 3Khz window by about 11:15am (CST), unless someone else can work it from a different loc...
Many times hammers useradio frequency scannerswhich are available these days there are a really valuable tool. What they do is scan different frequencies until they find a strong signal. QSL cards: The Q code is a standardized collection of three-letter message encoding, all starting with the ...
Fonctionnant de 3 à 30 MHz La construction d’un Balun est un travail relativement simple. Il vous est proposé ici la réalisation d’un Balun 50 Ohms asymétrique / 300 Ohms symétrique. Le transfo fait appel à deux tubes ferrite, matériau 43. La tail...
154.28 MHz: Local fire department emergency communication channel. Additional frequencies include 154.265 and 154.295 MHz. These are Fire Mutual Aid channels (VFIRE21, VFIRE22, VFIRE23) set aside for when multiple fire districts need to communicate. Typically, each district has their own radio fre...
Frequency measurements were made by determining the difference between the frequency of the test blank and that of some reference frequency such as a secondary frequency standard consisting of a one MHz crystal unit controlling a frequency generator which developed a set of radio frequencies having int...