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 3

Is the power meter suitable for this measurement?

Check frequency range, power, reference impedance and connection direction. Follow the manual’s CAL procedure where required; insufficient forward power can make the reading unusable.

Yes, setup and range are checked No, or I do not know the range

Show check record

HB3YAQ · Check record: SWR too high?
Your answers; no automatic measurement.

1. Do cable, connectors and antenna connection look sound?
→ Yes, nothing visibly wrong
2. How are you measuring SWR?
→ With an SWR/power meter

Is the power meter suitable for this measurement?
Check frequency range, power, reference impedance and connection direction. Follow the manual’s CAL procedure where required; insufficient forward power can make the reading unusable.

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