On 21/04/2025 10:02, Kevin G0AKH via groups.io wrote:
15m CW - other bands are similar but with lower volume on the 600-750Hz tone range
Kevin,
I presume this is with a dummy load?
I do not have a QMX but are you just seeing the filter bandwidth?
15m Digi showing 4 tones at 700, 1400, 2100, 2800Hz.
No, but are they so noticeable with an antenna? Spurii are often present but ~700Hz is difficult to explain.
Note "Flatten" should not be ticked with an SDR.
73 Alan G4ZFQ
