Technical data
VHF/AM RADIO FSG 2T
4 Recommended Set-up Sequence
June 2014 FAV_D10048 43
close into the corresponding microphone. Observe the TX/RX LED, it should flicker
YELLOW.
IF NOT, turn with a suitable screwdriver "Level Mic 2" potentiometer till the TX/RX LED
flickers YELLOW while transmitting and speaking. When you stop talking the TX/RX
LED should light steady RED!
Release the PTT key, the TX/RX LED must turn to clear (no reception) or to GREEN
(RX signal).
4.2.3 Set-up using one (or two parallel, identical) amplified / Standard
Carbon Microphone(s) on Mic 2 input, pin 3
This test must be performed with headphone(s) to evaluate the volume/quality
of the MIC signal via Transmit Sidetone.
Standard MIC input for amplified / Standard Carbon Microphones is pin 3 of DB-15
connector (on the Information Label indicated as "Mic 2").
Verify the settings of the DIL switches on the rear of the radio (DIL switch "Mic 1" set
to V, DIL switch "Mic 2" to V, DIL switches 1, 2 and 4 to "OFF", DIL switch 5 to "8mA").
1
2
3
4
5
6
Mic 2
Press the PTT key. The TX/RX LED should light steady RED. Speak loud, clear and
close into one microphone. Observe the TX/RX LED, it should flicker YELLOW. Listen
to the TX Sidetone in your headphone, it should be clear and undistorted.
If no Sidetone is audible or TX Sidetone is distorted try to increase audio quality
and volume by switching DIL switches "Mic 2" either to "2mA" or to 10 mA ("2mA" +
"8mA").
IF the TX/RX LED does not flicker, turn with a suitable screwdriver "Level Mic 2"
potentiometer till the TX/RX LED flickers YELLOW while transmitting and speaking.
When you stop talking the TX/RX LED should light steady RED!
Release the PTT key, the TX/RX LED must turn to clear (no reception) or to GREEN
(RX signal).
If applicable check the MIC current and MIC level setting of the second microphone
by repeating the steps above. If readjustment is necessary check again with first
microphone. When the MIC levels differ find a compromise in setting or try with
another identical microphone.