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.
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 that has a 146.460 input. According to the ARRL band plan this is a simplex frequency. How is this happening? I have complied and have quit using the radio.
Why is there a repeater on 146.46? Isn't that a simplex frequency?
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)?
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.
Why can I connect simplex at 146.52 but not at 145.200 and 147.000 ...
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 element is 1/2 wave at 12.25" and set at the front. Also, trying to figure out how to connect my SO239.
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!