Is the National Calling Frequency actually used? 146 520 MHz is the national calling frequency for FM voice It's a "simplex" frequency, meaning that you call on this frequency and then listen for a reply on the same frequency
united states - Whats the difference between national calling . . . 39 On the 2 meter and 70 centimeter band plans published by the ARRL, what is the difference in intended use between the calling frequencies (144 200, 432 10 MHz) and the simplex calling frequencies (146 52, 446 00 MHz)?
What frequencies should I listen to for packet radio? Have a look at the IARU Region 2 Band Plan Most of the frequencies marked "all modes" or "DM" (digital mode) may be used for packet radio, although there does not seem to be a single designated packet calling frequency Normally a packet radio frequency is coordinated between operators in the area, since one frequency can be shared by several TNCs In this case the frequency is standardized
Why can I connect simplex at 146. 52 but not at 145. 200 and 147. 000 . . . In partcular, 146 52 is the 2m FM voice calling frequency and should not be used for digital modes like winlink Additionally, just because there is a standard list of frequencies doesn't mean you can just pick one and expect to get a connection
Calculating Antenna Length on the FCC Exam vs. in Reality Example 146Mhz 300÷146=2 05 meters 2 05×39= 79 95 inches full length in inches 79 95÷2= 39 95 inches 1 2 wave length in inches 39 95÷2= 19 985 inches 1 4 wave length in inches Answer on test is 19 Example 6m Meters already given 6×39= 234 inches full wave length in inches 234÷2= 117 inches 1 2 wave length in inches Answer on test
What is a calling frequency? - Amateur Radio Stack Exchange Just a note - calling frequencies vary by region 146 520 MHz is the 2m calling frequency in the FM mode in Canada and the US, but not in most countries Be sure to check if you operate in other countries!
How much of the 136 - 174 mhz spectrum is actually in use? I know that 144-148 and 156-157 mhz ranges are in use, and various fire ems police, but outside of that, I see a lot of earth-to-space, weather stuff and space research allotments (talking about Ca
callsign - Proper way to announce call sign at start end - Amateur . . . I think I've heard both on 146 520 (But I need practice keeping track of callsigns) And just to round out the question, at the end of the conversation I've heard various ways of ending like "ABC123 clear", "ABC123", and more