For example, an SSB signal can’t be received on an FM receiver (and vice versa). Often, these modulation techniques are incompatible since a signal of one type can’t be received by a radio set to another modulation type. Amateur radio operators use a variety of modulation techniques to carry out communications. Knowing the FCC frequency authorizations is a good start but we need to check a bit further. The FCC has restricted 144.0 to 144.100 MHz to CW operation only. The FCC Rules say that any mode (FM, AM, SSB, CW, etc.) can be used on the band from 144.100 to 148.000 MHz. In particular, the 2M band extends from 144 MHz to 148 MHz.
Above 50 MHz, the frequency allocations are the same for Technician licenses and higher.
#SIMULTANEOUS DUAL BAND RECEIVER RADIO 2M LICENSE#
For the HF bands, the frequency privileges depend greatly on the license class of the operator. The first thing we need to know are the frequencies that the FCC has authorized for our particular license class. Not so fast, there are a few more things to consider when selecting a frequency on the 2m band.
After tuning around, you find a nice, quiet frequency that no one seems to using and start operating there. You and your buddies decide to find an out of the way frequency to hang out on. You’ve just purchased your first 2-meter (144 to 148 MHz) FM transceiver and have been chatting with both old and new friends around town on the 2m band. Note: For radio operating outside of Colorado, please refer to my article on Written for amateur radio operation in Colorado
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