How to - COM / NAV Radios Operation

The Microsoft / IniBuilds F27 is equipped with 3x COM radios, 2x NAV Receivers, 1x DME Receiver, 2x ADF Receivers. The COM1/NAV1 radios are always tuned via your chosen GPS Unit, while all other radios are controlled via the Lower Overhead Panel.

GPS Unit 

The COM1/NAV1 are always controlled via the GPS unit controls. You dial the standby frequency and then swap it to active.

On the GNS 430, press the PUSH C/V button to toggle between COM1 and NAV1 radio tuning functions.

On the PMS / TDS GTN 650, press the right knob to swap between COM1 and NAV1 radio tuning functions.

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Note: You can switch between the various GPS units via the EFB Options page. For more information see the How To - Swap GPS Units guide.

Lower Overhead Panel (Radio Panel)

The COM2/3, NAV2, DME and ADF1/2 radios are tuned via the controls on the lower overhead panel.

1. ADF1
2. Captain Audio Panel
3. COM2/3
4. NAV2 & DME
5. Transponder
6. ADF2
7. First Officer Audio Panel
    

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Note: The COM2/3 and NAV2/DME do not have a standby frequency selection. The tuned frequency is directly the active one.