CQ Reviews: The CODAN High Power Amplifier Controller (HPAC)

Some hams like the features of the high-end commercial CODAN Envoy transceivers, but have trouble interfacing them with anything except CODAN’s very expensive amplifier. N5SK takes a close look at the new CODAN High Power Amplifier Controller, which is designed to let the Envoy operate with the popular (and much less expensive) Ameritron ALS-1306 amplifier.

STEVEN KARTY

This article evaluates a new device that Australian-based CODAN recently introduced to interface its Envoy HF transceiver with an Ameritron ALS-1306 power amplifier, the CODAN High Power Amplifier Controller, or HPAC. Even though the Envoy is a commercial radio transceiver, most hams who bought Envoys assumed that connecting them to ham radio amplifiers would be easy. But trying to use the Envoy with anything other than a CODAN amplifier was a problem because there is no easy way to get a PTT output from the Envoy without an HPAC. Photo A shows the HPAC, which measures 2 inches high by 5-11/16 inch wide and 3-3/4 inches deep. The mounting foot extends the width to 6-3/4 inches, and the TCVR (transceiver) connector protrudes from the front panel by 5/16 of an…

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CQ Amateur Radio (Digital) - 1 Issue, January 2023

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