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  a. check the '''Train''' box
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  a. set the '''Port#'''Selector to ''COM Y'' (the serial port to which your PW-1's CI-V interface is connected)   a. set the '''Port#''' Selector to ''COM Y'' (the serial port to which your PW-1's CI-V interface is connected)
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 1. On the '''Ports''' tab of Commander's '''Configuration''' window, un-check the '''Secondary CAT Serial Port''' panel's '''Train''' box

Controlling an Icom PW-1 Amplifier

The Icom PW-1 Amplifier can automatically track the frequency of an Icom transceiver if

  • The PW-1 and transceiver are connected to the same CI-V bus
  • The transceiver's CI-V Transceive setting is enabled

During an initial programming step, the PW-1 learns the transceiver's CI-V address. From then on, the PW-1 monitors the CI-V bus for new frequency messages emitted by the transceiver when it QSYs (emitted because the tranceiver's CI-V Transceive setting is enabled), and adjusts its frequency accordingly. If 10 seconds elapse without the PW-1 receiving a new frequency message, the PW-1 begins sending report frequency directives to the transceiver via the CI-V bus.

With no other devices connected to the CI-V bus, this arrangement enables the PW-1 to track the transceiver's frequency. However, if the user wishes to run a PC-hosted transceiver control application to support logging, digital mode operations, DX spot collection, etc., the required connection of a PC-controlled CI-V interface to this CI-V bus results in collisions between PC-initiated CI-V commands and the transceiver's responses to the PW-1's report frequency commands. Unfortunately, the PW-1 lacks the logic required to detect and reject CI-V messages damaged by collisions; as a result, the PW-1 fails to accurately track the transceiver's frequency.

Commander's Secondary CAT Port can be configured to interact with a PW-1 connected to a private CI-V bus, enabling the PW-1 to track the primary transceiver's frequency without collision damage. This configuration allows the PW-1 to track the frequency of any transceiver that Commander can control, not just Icom transceivers.

If your transceiver is an Icom, you must establish this connectivity:


If your transceiver is not an Icom, you must establish this connectivity:


Recent Icom transceivers like the IC-7700 and IC-7800 can be directly connected to an RS-232 cable without need of a CI-V interface; the IC-7200 and IC-7600 can be directly connected to one of a PC's USB ports, creating a virtual serial port that eliminates the need for a physical serial port, RS-232 cable, and CI-V interface. The CI-V interfaces required by older Icom tranceivers and by the PW-1 can be [:ConnectingIcom: acquired or assembled]. Some non-Icom transceivers cannot be directly connected to an RS-232 cable, requiring a [:TransceiverConnection: level conversion interface].

With the physical connectivity established as shown above,

  1. If your transceiver is an Icom, use its menu system to disable its CI-V Tranceive setting

  2. Power off your PW-1
  3. Configure Commander to control your [:TranceiverControlAlinco:Alinco], [:TranceiverControlElecraft:Elecraft], [:TransceiverControlFlexradio:FlexRadio], [:TranceiverControlIcom:Icom], [:TranceiverControlKachina:Kachina], [:TranceiverControlKenwood:Kenwood], [:TranceiverControlTenTec:TenTec], or [:TranceiverControlYaesu:Yaesu] transceiver via Commander's Primary CAT Port

  4. Verify that Commander can track and control your transceiver's frequency and mode
  5. Configure Commander's Secondary CAT Serial Port panel, which can be found on its Configuration window's Ports tab

    1. click the Follow and Lead Primary button

    2. set the CAT protocol selector to PW-1

    3. check the Train box

    4. set the CI-V Address to 74

    5. set the Port# Selector to COM Y (the serial port to which your PW-1's CI-V interface is connected)

    6. set the Baud selector to 9600

    7. set the Word selector to 8

    8. set the Parity selector to None

    9. set the Stop selector to 1

    10. set the DTR and RTS selectors to Off (unless one or both are used to provide power to your PW-1's CI-V interface, in which case they should be set to On)

  6. While simultaneously pushing your PW-1's UP, and DOWN buttons, push its POWER button; this will

    • power-up the PW-1
    • clear any previously-learned CI-V address
  7. While pushing your PW-1's INPUT button, push its POWER button; this will place your PW-1 in programming mode; the INPUT 1 light will begin blinking

  8. On the Ports tab of Commander's Configuration window, un-check the Secondary CAT Serial Port panel's Train box

  9. Slowly QSY your transceiver until the PW-1's INPUT 1 light stops flashing, indicating that PW-1 programming is complete

  10. Push your PW-1's POWER button to record the programming results and power off your PW-1

  11. Push your PW-1's POWER button to power on your PW-1, which will from now on track your transceiver's frequency

[:TransceiverControl:Transceiver Control]

[:GettingStarted:Getting Started with DXLab]

PW1Control (last edited 2019-02-09 23:06:05 by AA6YQ)