CONSORCIO EFM SAC Empresa de Comunicaciones

TM-451A

CARACTERISTICAS

10 watts RF power output
Large LCD display
Backlite microphone keypad
20 memory channels
ATL Automatic Lock Tuning
Built-in CTCSS Tuning
Optional CTCSS encode
Pager function
Time-out timer
Programmable VFO

ESPECIFICACIONES

Antenna Impedance 50 ohms

Current Drain
   Transmit (HI)
   Receive (no signal)
Less than 6 A
Less than 600 mA

Dimensions (WxHxD)
[projections not included] 5.51 x 1.57 x 6.30 inches

External Speaker Impedance 8 ohms

Frequency 1240 ~ 1300 MHz

Frequency Tolerance ±3 ppm (14°F ~ 122°F)

Microphone Impedance 500 ohms ~ 600 ohms

Mode F3E (FM)

Operating Temperature Range -4°F ~ +140°F

Power Requirement 13.8 V DC ±15% (negative ground)

Weight 2.4 lbs.

Receiver

Audio Output Power More than 2 W (8 ohms, 5% distortion)

Circuitry Double conversion superheterodyne

Intermediate Frequency
   1st IF
   2nd IF
59.7 MHz
455 kHz

Selectivity
   -6 dB
   -60 dB
More than 12 kHz
Less than 36 kHz

Sensitivity (12 dB SINAD) Less than 0.16µV

Squelch Sensitivity Less than 0.1µV

Transmitter

Maximum Frequency Deviation ±5 kHz

Modulation Reactance modulation

Modulation Distortion
(Modulation degree 60%) Less than 3% (300 Hz ~ 3kHz)

RF Output Power HI
LO (approx.) 10 W
1 W

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