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  1. Is the National Calling Frequency actually used?

    Sep 6, 2015 · 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.

  2. Why is there a repeater on 146.46? Isn't that a simplex frequency?

    Apr 24, 2022 · 3 I have a commercial GE Phoenix transceiver that I sent out to be programmed on 146.460 but have been informed by a club that my transmissions are interfering with their repeater …

  3. Why can I connect simplex at 146.52 but not at 145.200 and 147.000 ...

    Apr 6, 2024 · 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 …

  4. 1/8 wave 3-element 2m beam antenna - Amateur Radio Stack Exchange

    Mar 5, 2021 · Center frequency 146.520MHz Driven element is 1/8 wave 10.25" long set at 6.125" from the front. Reflector element is 5/8 wave at 15.3" and 15.3" from driven element to the back. Director …

  5. united states - What's 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 …

  6. rfi - Strange interference - consistent series of beeps/chrips at ...

    Dec 21, 2023 · The power supply is an Alinco DM-330MV. While studying for the Technician exam I've been listening, mostly on 10 meters, and I've noticed an odd interference pattern - every 145-146 …

  7. callsign - Proper way to announce call sign at start/end - Amateur ...

    Sep 20, 2022 · 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 …

  8. What is a "calling frequency"? - Amateur Radio Stack Exchange

    Jun 10, 2016 · 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 …

  9. 2m loop with sense antenna for DF - Amateur Radio Stack Exchange

    The 90° phase shift is easily accomplished with a short length of coax cable that is electrically 90° long (or an odd multiple thereof). If you use Belden 9258 (their RG8X), this would be a cable length of 1 …

  10. united states - Choosing simplex frequency as a technician - Amateur ...

    Apr 4, 2014 · My brother and I just got our technician class license. We live close enough to each other that we can use simplex on 2 meters or 440. How do we go about choosing the best frequency to use?