User's Manual

TECHNISONIC INDUSTRIES LIMITED
www.til.ca
TDFM-136A Installation Instructions Page 1-5
TiL 09RE404 Rev C Issue 1
TABLE 1-4 TDFM-136A – Transmitter Characteristics
Characteristic Specification
RF Output Power:
Low
High
1W.
10W.
Output Impedance 50 ohms
Maximum Deviation:
Wide (25 kHz)
Narrow (12.5 kHz)
± 5 kHz
± 2.5 kHz
Maximum Deviation – Narrow ± 2.5 kHz (12.5 kHz mode)
Spurious Attenuation -90 dB below carrier level
Frequency Stability ± 2.5 ppm
Microphone Circuit Carbon or equivalent
Sidetone Output 0.5W (max) into 600 ohms
Harmonic Attenuation -65 dB below carrier level
FM Hum And Noise -40 dB
Audio Input 50 mV at 2.5 into 200 Ω input circuit for ± 3.5 deviation,
adjust.
Audio Distortion Less than 5%
1.6 CERTIFICATION SUMMARY
The following table gives a summary of DO-160D Environmental Testing for Technisonic Model
TDFM-136A, VHF Digital Transceiver.
TABLE 1-5 TDFM-136A – Environmental Testing Summary
Conditions Section Description of Conducted Tests
Temperature and Altitude 4.0 Equipment tested to categories B4 and D1.
Temperature Variation 5.0 Category B.
Humidity 6.0 Category A.
Operational Shock and Crash Safety 7.0 Category A.
Vibration 8.0 Equipment is tested without shock mounts to
categories S and U.
Magnetic Effect 15.0 Equipment is class Z.
Power Input 16.0 Category B.
Voltage Spike 17.0 Category B.
Audio Frequency Susceptibility 18.0 Category B.
Induced Signal Susceptibility 19.0 Category A.
Radio Frequency Susceptibility 20.0 Category U.
RF Emission (DO-160D)
RF Emission (DO-160C)
21.0 Category B.
Category Z.
Electrostatic Discharge 25.0 Category A.