Re: QDX #40m #qdx #manual RFSweep waveform different to manual #qdx #manual #40m

Alan G4ZFQ

QDX is built and firmware loaded, on dummyload the RF Filter sweep (top) looks quite different than the example in the manual (v 1.06 page 89)  -

Assuming v 1.02 is loaded then maybe something in the BPF or LPF.

Do you have TX power on all bands? If not any band maybe LPF switching or bad joint in common path.

The RF sweep checks LPF and BPF so if TX is good then maybe a bad joint on L12.

73 Alan G4ZFQ

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