
SECTION 8
um_tslm rev3.doc
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Product specifications are subject to change without notice.
8.1
GENERAL SPECIFICATIONS
Frequency Range
UHF 406-470 MHz
VHF 137-174 MHz
Defined Frequency Bands
UHF 406-422 MHz [2]
VHF 150-174 MHz [6]
UHF 414-433 MHz [3]
VHF 137-162 MHz [7]
UHF 450-470 MHz [5]
RF Input Impedance
50 Ohm
Frequency Control
Synthesized software programmable or
Hardware controlled through the DE-15 pin connector
Channel Steps
12.5 kHz
Frequency
Resolution
6.25
kHz
2.5
kHz
Carrier Frequency Stability
1.0 PPM (-30°C to +75°C)
System Deviation
3.0 kHz maximum @ 9600 Baud
4.0 kHz maximum @ 4800 Baud
Operating Mode
Simplex or Half Duplex
Front Panel Indicators
PWR, TX and RX
Time-out-Timer
Variable 0-120 seconds switchable on/off
Diagnostics
Configuration, test, performance statistics
Data Rate
4800 and 9600 bps
Signal Levels
EIA RS-232
Data Format
Asynchronous, serial, transparent
Word Length
7 or 8 bit words, 1 or 2 stop bits
Parity
Even, odd, or none
Transmit Control
RTS-CTS or Data Activation Transmit (DOX)
Turnaround Time
RTS-CTS delay
Baud
Normal Delay
Repeater
Extended T2
Diag off Diag on
Diag off Diag on
4800
30 mS 52 mS
60 mS 82 mS
24.4
9600
30 mS 32 mS
40 mS 52 mS
13.8
Modulation
DRCMSK
Communication Mode
Serial synchronous
BER
Better than 1x10
-6
at –107dBm for 9600 bps
RSSI Description
Unit Min Max Conditions
@ .22 uV (-120 dBm)
V
0.31 2.00 MID @ -120dBm 1.0kHz 1.5kHz deviation
@ 220 uV (-60 dBm)
V
1.18 3.70 MID @ -60dBm 1.0kHz 1.5kHz deviation