A IC-290E hand keyed with dots on 144 MHz. Strong keying clicks extend over 100kHz. The serial number is 01135.


The same as above at a reduced power level (about -4dB). The keying clicks are somewhat reduced.


The time domain waveform for key-down. White is amplitude, red is frequency.


The time domain waveform for key-up. White is amplitude, red is frequency.