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TROUBLESHOOTING WORKSHOP

SWR too high?

Separate measurement setup, cable and antenna before changing antenna length.

Switch the transmitter off before working on the RF path. Never connect a VNA to a transmitting output. Consult each device’s manual for permitted power and SWR limits.

CHECK 2

How are you measuring SWR?

A power meter needs a suitable transmit signal. A VNA or antenna analyser generates its own small measurement signal.

With an SWR/power meterWith a VNA or antenna analyser
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HB3YAQ · Check record: SWR too high?
Your answers; no automatic measurement.

1. Do cable, connectors and antenna connection look sound?
→ Yes, nothing visibly wrong

How are you measuring SWR?
A power meter needs a suitable transmit signal. A VNA or antenna analyser generates its own small measurement signal.

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