| |
| VR-DB2R is the first dual-band full-duplex
two way radio in china,Full-duplex allows transmit
and receive to happen simultaneously,This is the first
advantage of DB2R,the Second,DB2R have meet IPX7 waterproof
protection,it can under 1 meter water 30 minutes.it
is the first waterproof IPX7 two way radio in china.The
Third,DB2R have Auto Contact Function,This function
is helpful for environments needing close communication,
such as climbing, exploration and rescuing. The radio
beeps when the user is being out of communication
range when this function is ON.,We will explain each
function as below:
 
1,Dual-Band Full-Duplex,Dual Frequency
,Dual Display .Dual Standby
- 136-174 & 300-350 MHz (TX/RX)
- 136-174 & 350-390 MHz (TX/RX)
- 136-174 & 400-470 MHz (TX/RX)
- 136-174 & 450-520 MHz (TX/RX)
- 136-174 & 245-246 MHz (TX/RX)
- 144-146 & 430-440 MHz (TX/RX)
2,Full-Duplex Communication in VHF and
UHF band Simultaneously.
- Full-Duplex Communication in VHF and UHF band
Simultaneously.It is alows Receive while transmit
3,IPX7 Waterproof protection
- The gasket sealed waterproof housing provides
superior waterproof protection, equivalent to
JIS Grade 7*. Reliable and dependable use in harsh
conditions such as rain, snow, sudden change in
temperature, make the VR-DB2R the radio for all
situations.
4,Human voice prompt information function
- Human voice prompt information function ,It
is easy to know the channel is for sb. and the
master information.
VR-DB2R offers Wide (25kHz) and Narrow(12.5kHz)
channel spacing. When the VR-DB2R is at duplexing
state,DB2R can automatically adjust the output power
according to the distance between the two two way
radio.and VR-DB2R with the Auto Contact Function,The
function is helpful for environments needing close
communication, such as climbing, exploration and
rescuing. The radio beeps when the user is being
out of communication range when this function is
ON.
|
|
VR-DB2R Feature: |
 |
- 5W output power
- 128 memory channels
- Built-in 50 CTCSS
and 104 DCS
- Wide (25kHz) and
Narrow(12.5kHz) channel spacing
- programmable in
separate channels
- Come with 1500mAh
Li-ion battery
- Input Frequency
directly by keypad
- High/Low Power Switchable
- Auto Contact Function
- Auto Output Power
When the Radio In Duplex Status
- Whisper Function
- Sound Alarm
- Programmable by
PC software
- Bell ring when receiving
signal
- Priority Scan Function
- Adjust power High/Low
- Switching between
Channel/VFO
- Display Channel+
Frequency mode.
- Adjust squelch level
(0-9)
- Busy channel lockout
- Keypad lock
- Reverse Frequency
Function
- Channel step 5k,10k,6.25k,12.5k,25k
- Program alphanumeric
channels name
- FM radio
|
|
| VR-DB2R Technical Indicators |
|
Model |
VR-DB2R |
| Frequency
Range |
136-174
& 300-350 MHz (TX/RX)
136-174 & 350-390 MHz (TX/RX)
136-174 & 400-470 MHz (TX/RX)
136-174 & 450-520 MHz (TX/RX)
136-174 & 245-246 MHz (TX/RX)
144-146 & 430-440 MHz (TX/RX) |
Channel
Number |
128 |
Channel
Spacing |
5/6.25/25/12.5/50KHz
|
Maximum
Deviation |
?KHz to 25KHz
?.5KHz to 12.5KHz |
Frequency
Stability |
?.0ppm |
Operating
Voltage |
7.4V |
Battery
Type |
1500 mAh (Lithium
Battery) |
Operating
Temperature |
-30?~+60? |
Standby
Current |
50mA |
Antenna
Impedance |
50O |
Dimension(without
antenna&battery |
(L??) 106?3?9(mm)
|
Weight |
265g (with
antenna&battery) |
| Transmitter |
Power
Output |
4W/1W |
Modulation |
16K?F3E/11K?F3E
|
Spurious
and Harmonious |
-36dBm<1GHz
-30dBm>1GHz |
FM
Noise |
40dB |
Adjacent
Channel Power |
70dB/60dB |
Audio
Distortion |
=5? |
| Receiver |
Sensitivity |
0.25?(12dB SINAD)
|
Selectivity |
60dB |
Intermodulation |
60dB |
Spurious
Response Rejection |
65dB/70dB |
Audio
Power Output |
500mW |
| Audio
Distortion |
=3?(0.5W) |
|
| Included
with the VR-DB2R: |
|
- VR-BB2R Dual-Band Handheld
Radio
- 1500 mAh Rechargeable
Lithium Battery
- Rapid charger
- AC Charging Adapter
- Belt Clip
- Antenna
- Users' Manual
|
|
| |
| |
