IC-7410 tests – 04 – Tx power & SWR meter

An article in a series documenting measurements on an IC-7410.

This focuses on receiver Tx power and SWR meter.

The following video captures dynamic operation of both meters better than mere words alone.

The key findings are that:

  • the SWR meter does not provide a valid indication at less than about 50W output, at lower output power level it underestimates SWR; and
  • the peak hold feature of the tx power meter does not capture Peak Envelope Power on SSB telephony.

Both fairly disappointing for a transceiver that boasts some quite advanced features.

Note: this unit is one with the fixes for the ALC overshoot applied before delivery.