VHF Radio - transfer switch between two frequencies

STUDENT GUIDE T-39N/G NATOPS

6. Red EMG button acts as a RESET in case of power fault. This function also allow the

pilot to T/R on VHF and the copilot to T/R on UHF 1, bypassing the RCS in case of malfunction.

7. VOX CANNOT be adjusted.

C. VHF Radio - transfer switch between two frequencies.

D. Transponders - select #1 or 2, STBY/ON/LO, IDENT, ALT RPT (mode "C"), MON.

E. TACAN - check X/Y, switch for Air-Air (DME only) or Air-Ground (azimuth and DME).

F. UHF Radios- OFF/MAINBOTH/ADF, squelch, manual/preset/read.

ADF is UHF/DF, ADF2 needle on EHSI (UBF #1 has priority).

- BOTH (MAIN & monitors GUARD)

G. VOR

1. Two receivers for VOR. Azimuth and DME VOR 1 and azimuth only VOR 2. VOR 1

can be used for ILS azimuth and glideslope. (only 1 VOR in T-39G)

2. Test switch will center CDI bar (set to 360) for VOR, or show 1 dot right/1 dot low for a

localizer.

H. ADF

1. Displays only relative bearing to a station.

2. OFF, ANT (no azimuth), ADF (azimuth), TEST (90 degree change in bearing).

3. Transfer switch between 2 selected frequencies.

4. Uses ADF 1 needle on EHSI.

I. Stormscope modes (T-39N)

1. 360 or 120 degrees wx mapping.

2. Checklists.

3. Time/date.

J. Flight instruments

1. Radalt (located on pilot side in T-39G)

a. 0 to 2500 feet, NO TONES associated with radalt.

b. Can SET radalt to nearest 1 foot by simultaneously depressing and rotating set knob

until desired height is displayed on digital display.

8-2

AVIONICS SYSTEMS