Kenwood TM-521E - Manual (Page 4)

2. SPECIFICATIONS AND ACCESSORIES
2-1. SPECIFICATIONS
Model
Specifications
Frequency range
TM-221A
144 to
148 MHz
TM-221ES
144 to
146 MHz
TM-321A
220 to
225 MHz
TM-421A TM-421ES
440 to 450 MHz (U.S.A. version)
430 to 440 MHz
TM-521A TM-521E
1240 to 1300 MHz
Mode F3E (FM)
Antenna impedance 50 ohms
Operating temperature -20°C to +60°C (-4°F to +140°F)
Power requirement 13.8 VDC ±15%
Grounding Negative
Current
drain
Transmit mode
(Max.)
9.5 A 6.5 A 8.5 A
Receive mode with
no input signal
0.4 A
5.5 A
0.6 A
Frequency stability Better than ±10x10'® Better than ±3x10'®
Dimensions
Wide 141 mm (5-9/16")
High 42 mm (1-21/32")
Deep 193 mm (7-19/32")
Weight 1.2 kg (2.65 lbs)
^Output power
HI 45 W
LOW
Approx. 5 W.
Adjustable up to out
30 W.
25 W 35 W
Approx. 5 W.
Adjustable up to out 20 W.
10 W
Approx. 1 W.
Adjustable up to out
5 W.
Modulation Reactance modulation
Spurious radiation Less than -60 dB Less than — 50 dB
Max. frequency deviation ±5 kHz
Audio distortion (at 60%
modulation)
Less than 3%
Microphone impedance 500 to 600 ohms
Circuitry Double conversion superheterodyne
Intermediate
frequency
1 St 10.695 MHz 10.7 MHz 30.825MHz 21.6 MHz 59.7 MHz
2nd 455 kHz
Sensitivity! 12 dB SINAD) Less than 0.16 nW
Selectivity
-6 dB More than 12 kHz
-60 dB Less than 26 kHz Less than 36 kHz
Spurious response Better than 70 dB Better than 65 dB Better than 40 dB
Squelch sensitivity Less than 0.1 /iV
Output (5% distortion) More than 2 W across 8 ohms load
External speaker impedance 8 ohms
Notes:------------------------------------------------------------------------
1. Circuit and ratings are subject to change without
notice due to advancements in technology.
2. * : Recommended duty cycle:
1 minute : Transmission
3 minutes : Reception