General Specifications
Model Designation TFM-138 TFM-138B
Frequency Range
138.000 MHz to 174.000 MHz
138.000 MHz to 174.000 MHz
Tuning increments
2.5 kHz
2.5 kHz
Operating Mode
F3E simplex or semi-duplex
F3E simplex or semi-duplex
Channel spacing
25 kHz or 30 kHz as per applicable
12.5 kHz, 25 kHz or 30 kHz as per
FCC and DOC specifications
applicable FCC and DOC spec.
Memory positions
100 channels
120 channels
Physical dimensions
Approx. 8.0 in x 3.0 in x 5.75 in
Approx. 8.0 in x 3.0 in x 5.75 in
Weight
3.1 Lbs. (1.4 Kg)
3.1 Lbs. (1.4 Kg)
Temperature range
-45
o
C to +70
0
C
-45
o
C to +70
0
C
Altitude
50,000 ft
50,000 ft
Power requirement
28 VDC
28 VDC
Receive - 600 ma
Receive - 600 ma
1 Watt transmit - 1.3 amps
1 Watt transmit - 1.3 amps
10 Watts transmit - 2 amps
10 Watts transmit - 2 amps
Certification
FCC and DOC Type approved
FCC and DOC Type approved
Environmental Categories
RTCA DO-160C (B2,D1)XXX(B,M,N)XXXXXXZBBXXXZXXX
Guard receiver
2 channel synthesized
2 channel synthesized
CTCSS squelch capability
encodes/decodes all 63 available tones
encodes/decodes all 63 available tones
DPL/DCS capability
not available
encodes/decodes all avail digital sq. codes
DTMF encoder
All standard DTMF tones available
All standard DTMF tones available
Audio output
500 mw into 600 Ohms
500 mw into 600 Ohms
Speaker output
2.5 Watts into 4 ohms
2.5 Watts into 4 ohms
Back lighting
28V (standard) or 5V (specify)
28V (standard) or 5V (specify)
Display
Green (standard), red (optional)
Green (standard), red (optional)
Minimum Performance Specifications
Main receiver
Sensitivity at 12 dB SINAD
Better than 0.35 microvolts
Better than 0.35 microvolts
Adjacent channel
-78 dB for 25 kHz
-78 dB for 25 kHz, -70 dB for 12.5 kHz
Spurious attenuation
-90 dB below carrier
-90 dB below carrier
Third order intermod
-70 dB
-70 dB
Image attenuation
-80 dB
-80 dB
FM acceptance
+ 6 kHz
+ 6 kHz
Hum and noise
Better than 50 dB
Better than 50 dB
Audio distortion
Less than 5%
Less than 5%
Ant conducted emission
Less than -70 dBm
Less than -70 dBm
Guard receiver
All specifications identical to main receiver
Transmitter
RF power output
1 Watt or 10 Watts
1 Watt or 10 Watts
Output impedance
50 Ohms
50 Ohms
Maximum deviation
Limited to 5 kHz
Limited to 2.5 kHz for 12.5 kHz channels
and 5 kHz for 25 kHz channels
Spurious attenuation
-90 dB below carrier level
-90 dB below carrier level
Frequency stability
+0.0005%
+0.00025%
Microphone circuit
Carbon or equivalent
Carbon or equivalent
Sidetone output
500 mw (max) into 600 ohms
500 mw (max) into 600 ohms
Harmonic attenuation
-65 dB below carrier level
-65 dB below carrier level
FM hum and noise
-40 dB
-40 dB
Audio input
50 mV at 2.5 kHz into 200 ohm circuit
50 mV at 2.5 kHz into 200 ohm circuit for
for +3.5 kHz deviation, adjustable
+3.5 kHz deviation (25 kHz mode).
50 mV AT 2.5 kHz into 200 ohm circuit for
+2.0 kHz (12.5 kHz mode), adjustable
Audio distortion
Less than 5%
Less than 5 %
Specifications subject to change without notice
DPL is a trademark of Motorola Corporatrion
Technisonic Industries Ltd
.
2
40 Traders Blvd,
Mississauga, Ontario L4Z 1
W7
Canada
Ph: 905 890-2113 Fax: 905 890-5338
www.til.ca
Содержание TFM-138
Страница 13: ...2 2 FIGURE 2 1 Operator s Switches and Controls TFM 138 F10 B software...
Страница 24: ...3 2 FIGURE 3 1 Outline Drawing for Model TFM 138 Transceiver...
Страница 26: ...3 4 Figure 3 2 Wiring Connections for TFM 138 Transceiver...
Страница 30: ...3 8 FIGURE 3 4 Microphone and Sidetone Level Main and Guard Squelch Adjustment Access Holes...
Страница 42: ...STEP SYSTEM PASS FAIL NOTES A 11...
Страница 43: ...STEP SYSTEM PASS FAIL NOTES A 12...
Страница 44: ...STEP SYSTEM PASS FAIL NOTES A 13 NOTES...