Are there any frequencies (HF, 2m and 440) that are more suitable than others (assuming all are within those licensed to the operator) for testing new radios and/or antennas?
I assume that one should always listen before attempting to transmit a test signal, but any "deafness" in a new antenna and/or transceiver setup may not pick up a weak QRP or a distant QSO in progress. So one assumption is that frequencies listed on some band charts as appropriate for QRP or DX (as well for as emergency communications) should be avoided for testing. Which documents, band charts or operating procedure manuals (etc.) might list this info?