TK-D740/D840

GENERAL TK-D740 TK-D840
Frequency Range 136 - 174MHz 406 - 470 MHz
Max. Channels Per Radio 32
Number of Zones 2
Max. Channels Per Zone 16
Channel Spacing Analog 25/12.5 kHz
Digital 12.5 kHz 6.25/12.5 kHz
Power Supply 13.6 V DC ± 15%
Battery Life KNB-L1 (2,000mAh) 10 hours / 6.5 hours
(5-5-90/10-10-80 KNB-L2 (2,600mAh) 12.5 hours / 8.5 hours
duty cycle) KNB-L3 (3,400mAh) 17 hours / 11 hours
Operating Temperature -22°F to +140°F (-30°C to +60°C)
Frequency Stability ±2.0 ppm ±1.0 ppm
Dimensions (W x Hx D) Projections Not Included 6.29 x 1.69 x 4.82 in. (160 x 43 x 122.6 mm)
Weight (net) 2.42 lb (1.10 kg)
RECEIVER TK-D740 TK-D840
Sensitivity Digital (1% BER) 0.45 μV
Digital (5% BER) 0.3 μV
Analog (12dB SINAD) 0.25 μV
Selectivity Analog @25/12.5 kHz 75 dB/65 dB
Intermodulation Analog 73 dB
Spurious Response Analog 75 dB
Audio Distortion Less than 5% distortion
Audio Output Power 4 W/4 Ω
TRANSMITTER TK-D740 TK-D840
RF Power Output Power 50-5 W 45-5 W
Spurious Response 73 dB 75 dB
FM Hum & Noise Analog 25/12.5 kHz 45 dB/40 dB
Audio Distortion Less than 5%
Emission Designator 16K0F3E, 11K0F3E, 7K60FXE, 7K60FXD

*20 kHz is not included in the models sold in the USA or US territories. Analog measurements made per TIA 603 and specifications shown are typical. Digital measurements made per TIA 102CAAA and specifications shown are typical.

APPLICABLE MIL-STD & IP

MIL Standard Methods/ Procedures
810C 810D 810E 810F 810G
Low Pressure 500.1/ I 500.2/ I, II 500.3/ I, II 500.4/ I, II 500.5/ I, II
High Temperature 501.1/ I, II 501.2/ I, II 501.3/ I, II 501.4/ I, II 501.5/ I, II
Low Temperature 502.1/ I 502.2/ I, II 502.3/ I, II 502.4/ I, II 502.5/ I, II
Temp. Shock 503.1/ I 503.2/ I 503.3/ I 503.4/ I, II 503.5/ I
Solar Radiation 505.1/ I 505.2/ I 505.3/ I 505.4/ I 505.5/ I
Rain* 506.1/ I, II 506.2/ I, II 506.3/ I, II 506.4/ I, III 506.5/ I, III
Humidity 507.1/ I, II 507.2/ II, III 507.3/ II, III 507.4 507.5/ II
Salt Fog 509.1/ I 509.2/ I 509.3/ I 509.4 509.5
Dust 510.1/ I 510.2/ I 510.3/ I 510.4/ I, III 510.5/ I
Vibration 514.2/ VIII, X 514.3/ I 514.4/ I 514.5/ I 514.6/ I
Shock 516.2/ I, II, V 516.3/ I, IV 516.4/ I, IV 516.5/ I, IV 516.6/ I, IV

International Protection Standard

Dust & Water IP54

*Testing requirements are: (a) Microphone (KMC-35/36) is connected; (b) cap is installed on D-sub 15pin connector; (c) external antenna is connected to antenna receptacle; and (d) neither the KCT cable nor speaker cable is connected.