Kenwood TH-D74A Tri-band Handheld Transceiver GPS Walkie Talkie D-Star

Description

TH-D74A Walkie Talkie
(Details Found At Kenwood.com)
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"
Triband Amateur radio packed with convenient features and the advantage of a digital transceiver with D-STAR, and APRS support. Featuring a color transflective TFT display that offers excellent visibility during the day or at night. Built-in GPS and Bluetooth support, as well as Micro USB and microSD/ SDHC. This radio is ready to harness the exciting developments in radio comm
u
nications.
" - Kenwood.com
- Compatible with the APRS communication protocol, for real-time two-way data transmission using packet communications. This stand-alone device enables the enjoyment of communications through a variety of features, including sharing of local and GPS positional information, and message exchange.
- Other station positional information, weather station information
- Station list, object compatibility
- Messaging functionality
- QSY Functionality
- KISS mode TNC
- APRS menu settings
- Compatible with D-STAR, the amateur radio communications network that has voice mode and data mode. Both local and international communications are possible through diverse operations including simplex communications, single repeater relay communications, and inter-repeater gateway communications.
- DV fast data mode
- Simple operation in DR (D-STAR repeater) mode
- Setting via the digital function menu
- Easily updated repeater list
- Kenwood proprietary sound
- Compatible with wideband and multimode reception
- Built-in IF receive filter
- IF output mode
- High-performance DSP voice processing
- Visibility display and user-friendly operation
- Tough weatherproofing meeting IEC 529 IP-54/ 55 standards
- Easily understandable pop-up screens
- Dual frequency reception (VxV, UxU, and VxU functions)
- Micro USB (Serial, Mass Storage Class, USB Audio) to enable use of external decoding software Bluetooth (SPP, HSP) support
- External Decode function (PC Decode 12kHz IF output, BW: 15 kHz)
- Voice Recording (Files size up to microSD memory capacity)
- CSV Data Import / Export, (Digital Repeater List, Callsign, List_Digital)
- GPS Logger mode (Un-limited Number of Data stored to microSD memory)
Comes Complete With
1x TH-D74A Walkie Talkie
1x Manual
1x Battery (pre-installed, KNB-75L, Li-ion 1800 mAH, 7.4V)
1x Battery Charger (wall lump)
1x Programming Software (KRS-D74-U by RT Systems)
1x Programming Software License ( KRS-D74-USB, RT Systems, CD/DVD and RT-49 USB cable)
1x Belt Clip
1x Antenna
Specifications
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 INCLUDED (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)