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TH-D74A

GENERAL  
Frequency Range Band-A TX: 144 - 148, 222 - 225, 430 - 450 MHz
RX: 136 - 174, 216 - 260, 410 - 470 MHz
Band-B RX: 0.1 - 76, 76 - 108 MHz (WFM)
Mode TX F3E, F2D, F1D, F7W
RX F3E, F2D, F1D, F7W, J3E, A3E, A1A
Operating Temp. Range with Incd. KNB-75L -4°F ~ +140°F  (-20 °C ~ +60 °C )
+14°F ~ +122°F (-10 °C ~ +50 °C )
Frequency Stability +/- 2.0 ppm       
Antenna Impedance 50 Ω
Operating Voltage DC-IN DC 11.0 - 15.9 V (STD: DC 13.8 V)
BATT DC   6.0 - 9.6 V   (STD: DC 7.4 V)
Current Consumption     TX EXT.PS 13.8 V / Battery:7.4 V
(TYP.) H           M           L               EL
DC-IN 1.4 A   0.9 A    0.6 A    0.4 A
BATT 2.0 A   1.3 A    0.8 A    0.5 A
Current Consumption  
(TYP.)  
RX 260 mA (Rated Power)
135 mA (SQ Close)
48 mA (Avg. Save on)
SINGLE
DUAL 310 mA (Rated Power)
185 mA (SQ Close)
50 mA (Avg. Save on)
GPS receiver mode 115 mA
Battery Life  Approx. Single, Save on, Rate 6:6:48 sec, GPS off
H             M             L                EL
KNB-75L (1,800 mAh) 6 hours    8 hours    12 hours     15 hours
KNB-74L (1,100 mAh) 4 hours   5 hours    7 hours       9 hours
KBP-9 (Alkaline 6AAA) ---    ---      3.5 hours     ---
Approx. 10 % shorter when GPS is ON
Dimensions (W x H x D) Projections not included
with KNB-75L 2.20 x 4.72 x 1.33 in   56.0 x 119.8 x 33.9 m
with KNB-74L 2.20 x 4.72 x 1.15 in   56.0 x 119.8 x 29.3 mm
with KBP-9 2.20 x 4.72 x 1.42 in   56.0 x 119.8 x 36.0 mm
Weight (net) Body only 7.13 oz  202 g
with KNB-75L 12.2 oz  345 g (w/ Antenna, Belt Clip)
with KNB-74L 11.1 oz  315 g (w/ Antenna, Belt Clip)
with KBP-9 7.13 oz  360 g (w/ Antenna, Belt Clip, 6AAA Battery)
RECEIVER Band-A Band-B
Circuitry
F3E, F2D, F1D, F7W
Double Super Heterodyne
J3E, A3E, A1A Triple Super Heterodyne
IF Frequency 1st IF J3E, A3E, A1A 57.15 MHz 58.05 MHz
2nd IF 450 kHz 450 kHz
3rd IF - 10.8 kHz
Sensitivity   (TYP.) Amateur Band FM 12 dB SINAD FM/ NFM      144 MHz 0.18/ 0.22 uV 0.19/ 0.24 uV
FM/ NFM   220/430 MHz 0.18/ 0.22 uV 0.20/ 0.25 uV
DV PN9/GMSK 4.8kbps,
BER 1%
144/ 430 MHz
0.20 uV 0.22 uV
220 MHz 0.22 uV 0.24 uV
SSB 10 dB S/N - 0.16 uV
AM 10 dB S/N - 0.50 uV
Except above Amateur Band
AM
10 dB S/N
0.3 - 0.52 MHz
- 4 uV
0.52 - 1.8 MHz - 1.59 uV
1.8 - 54 MHz - 0.63 uV
54 - 76 MHz - 1.12 uV
118 - 174 MHz - 0.50 uV
200 - 250 MHz - 0.63 uV
382 - 412 MHz - 1.12 uV
415 - 524 MHz - 1.12 uV
FM 12 dB SINAD 28 - 54 MHz - 0.32 uV
54 - 76 MHz - 0.56 uV
118 - 144 MHz 0.36 uV 0.36 uV
148 - 175 MHz - 0.36 uV
200 - 222 MHz - 0.36 uV
225 - 250 MHz - 0.36 uV
382 - 400 MHz - 0.50 uV
400 - 412 MHz 0.36 uV 0.36 uV
415 - 430 MHz 0.36 uV 0.36 uV
450 - 490 MHz 0.36 uV 0.36 uV
490 - 524 MHz - 0.63 uV
SSB 10 dB S/N1.8 - 54 MHz - 0.40 uV
54 - 76 MHz - 0.79 uV
144 - 148 MHz - 0.16 uV
222 - 225 MHz - 0.20 uV
430 - 450 MHz - 0.16 uV
RECEIVER Band-A Band-B
FM BC Band WFM 30 dB S/N
76 - 95 MHz
- 1.59 uV
95 - 108 MHz - 2.00 uV
Squelch(TYP.) - 0.18 uV 0.25 uV
Spurious Rejection 144 MHz 50 dB or more 45 dB or more
430 MHz 50 dB or more 40 dB or more
IF Rejection - 60 dB or more 55 dB or more
Channel Selectivity -6 dB    12 kHz or more -50 dB  30 kHz or less
Audio Output 7.4 V, 10% Dist.           400 mW or more / 8 Ω
TRANSMITTER
RF Power Output EXT.PS 13.8 V / Battery:7.4 V
H         M        L           EL
5 W     2 W     0.5 W   0.05 W
Modulation FM Reactance Modulation
DV GMSK Reactance Modulation
Modulation Deviation FM +/ -5.0 kHz
NFM +/ -2.5 kHz
Spurious Emissions HI/ MID -60 dBc or less
L -50 dBc or less
EL -40 dBc or less
Microphone Impedance 2kΩ
GPS
TTFF (Cold start) Approx. 40 sec
TTFF (Hot start) Approx. 5 sec.
Horizontal Accuracy 10 m or less
Receive sensitivity
Ta = 25˚C, Open sky
Approx. -141 dBm  (Acquisition)
Bluetooth
Version, Class Version 3.0, Class 2
Output Power -6 < Pav < 4 dBm
Modulation Characteristics 140 ≦ ⊿f 1avg ≦ 175 kHz
Initial Carrier Frequency -75 ≦ fo≦ +75 kHz
Carrier Frequency Drift

±25 kHz (One Slot packet)
±40 kHz (Three Slot Packet)
±40 kHz (Five Slot Packet)