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1.2
TECHNICAL SUMMARY
A summary of the relevant electrical, operational, mechanical and physical characteristics of the
transceiver are given in Table 1.1, Leading Particulars.
TRANSCEIVER MODEL 91-DE:
Power Source Requirements:
DC Voltage (Negative Ground) .......................................................... 13.75 VDC Nominal
Input Current:
Transmit Mode ...................................................................................... 5.0A maximum
Receive Mode ...................................................................................... 1.5A maximum
Frequency Range ............................................................. 117.975 MHz to 138.000 MHz
Channel Spacing:
Narrowband (Normal) ....................................................................................... 25 kHz
Frequency Selection.............................................................. Keypad entry, 10 memories
Duty Cycle ..................................................... One Minute Transmit/Four Minutes Receive
TRANSMITTER CHARACTERISTICS:
Power Output (FCC) ........................................................................................ 10 Watts MAX
Power Output (ICAN) ......................................................................................... 8 Watts MAX
Output Power Stability After One Minute .............................................................. ±1 Watt
VSWR ................................................................................................................ 4:1
Carrier Stability (-40°C to +55°C) ....................................................... ±1,000Hz maximum
Incidental FM and PM Due to Modulation ..................................................... ±100Hz max.
Rise Time to 90% of Rated Power ................................................... 100milliseconds max.
Audio Input .................................................................................. 50millivolts to 2Vrms
Speech Processor Dynamic Range .......................................................... 35dB minimum
Modulation Capability .................................................................................. Up to 95%
Audio Distortion (with 90% modulation) ..................................................... 10% maximum
Audio Frequency Response ................................................... 300Hz to 2,500Hz, +1,-3dB
Spurious Emissions .......................................................................... 60dB below carrier
Hum and Noise Level ................................................................... 45dB below modulated carrier
RECEIVER CHARACTERISTICS:
RF Input Circuit ............................................... 50-ohms unbalanced, VSWR 2:1 maximum
Sensitivity (12 dB SINAD) 1 kHz, 30% modulation ........................................... 2 microvolts
Selectivity. 25kHz Channel Spacing:
Bandwidth at 6dB Points ..................................................................... More than 15 kHz
Bandwidth at 60dB Points .................................................................... Less than 40 kHz
Adjacent Channel Selectivity .................................................................... At least 80 dB
Pass Band Symmetry ............................................................................ 15% maximum
IF Band Pass Ripple Between -6dB Points .................................................. 2dB maximum
Spurious Response Attenuation ................................................................ At least 90 dB
Frequency Stability (-40°C to +55°C) .......................................................... ±1000Hz max
AGC Characteristics With RF Input Signal .......................................... 5 microvolts to 1 volt
Audio Level: ..................................................................................................... ±3dB
TMS-150 91-DE Installation & Operating Instructions
TECHNISONIC INDUSTRIES LIMITED
www.til.ca
TABLE 1.1 LEADING PARTICULARS
1-7
TiL 94RE146 Rev E
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