Feature:
Handheld
radios used currently on the market for basic use rate in 400-470MHz,
most of the power 5W, this walkie talkie in open call distance can reach
5-8 km, while in dense urban, but only a short distance of 1-2 km, or
less. In order to have long-distance communication, we need a repeater.
Standard repeaters have a high cost, and can be complicated to install,
so there was a need for a simple and inexpensive repeater. The
operation is very simple, and no power supply needed, You do not need
to change any part of the radio, All you need is just two handheld
radios and connect the cables to the external mic/spk ports
(2.5mm&3.5mm). using two handheld walkie talkie headset jack is
composed of a very practical small relay station through the relay box.
Repeater Use For Walkie Talkie To Increase Talk Distance above 10KM, Two- way communication (receive and transfer )
Specification:
Repeater For 2PCS Handheld Radio
Two-way Relay: YES
Cable Length: 190cm in total of 2 cables
Connector: K Port For Kenwood and most brand radios with the same connector
Weight: 70g
Working mode:
1.
The transponder downlink forwarding (differential and conventional
relay station), a machine as a signal of uplink receiver, B machine as
the signal downlink transmitter. Has reached the relay purposes.
2.
Bidirectional forwarding, machine of a receiver, B machine emission. B
machine to receive, machine of an emission. To achieve bidirectional
forwarding function.
3. The relay box for audio trigger mode, when in use, the as received signal walkie talkie at full volume!
The scope of application:
1. The link between the relay station and relay station
2. Relay station signal coverage area of signal extension
3. The field construction of cable erection
4. Underground mine
5. Cave construction
6. Culvert emergency rescue
7. V-U cross section relay
8. Small basement and ground walkie talkie signal connection
9. Large activities and other occasions emergency use!
Antenna / diplexer installed applications
1.
Unique multiplexer: two handheld computer connected to a relay station,
such as the peerless multiplexer, two hand should be separately using
two antenna! The two antenna should be erected vertically! And between
the two of them try to distance! At least not less than 5 metres! (two
walkie talkie antenna avoid parallel erection!)
2. A duplexer:
purchase the corresponding frequency / power duplexer, with "on the
joint" two handset antenna output terminal respectively docking to the
duplexer transmitting and receiving end, set the players holding table
corresponding frequency (frequency should be consistent with the
duplexer). A duplexer case, relay station as long as the need to connect
to an antenna! And erecting the antenna has no special attention! Just
try to please!
3. Recommend using the duplexer, because a duplexer
relay stations when the antenna is no special requirements! As long as
the height is enough to.
4. Recommend the use of original brand walkie talkie"! As a result of the customer to use
domestic non-standard walkie talkie and cause the relay box not work!
Nonself at products, responsible for the consequences from customers!
Single / two way relay box frequency set prompt
1.
The one-way relay box forwarding mode (conventional relay station
mode)! A machine receives the signal, the B machine transmission signal.
Sending / receiving machine must be set to two different frequencies,
the frequency is higher than the conventional transmitter set receiver
frequency, and high / lower, high / low frequency difference of the 10M,
the frequency difference is bigger is better.
2. The one-way relay box in the process of using the jack do not reverse connection, otherwise this trunk box will not work.
3.
Bidirectional relay box plug does not divide the input / output,
two-way relay box forwarding mode: A machine receives the B emission, B
emission machine to receive A.
The matters needing attention
1.
The relay box for audio trigger mode, so when you use the walkie talkie
volume to your maximum, otherwise may appear not to send state.
2.
Such as transmission delay time is too long (more than 3 seconds),
conventional because walkie talkie transmit antenna near the trunk box
too close to cause the transmitted signal interference caused by relay
box! Can be used to solve the problem of interference of external
interphone antenna!
Package include:
1 x RC-108 Walkie-talkie Two Way Relay Box