2.048Mbps Wireless Modem
ARQ – Based Error Correction
The 2.048Mbps Wireless Modem uses an Automatic Retransmission Queuing (ARQ) mechanism to detect errors in received data and to request retransmission. The use of ARQ results in a significant improvement in performance, overcoming problems caused by interfering signals.
Radio
Full Duplex
The radio uses full duplex communication, transmitting and receiving simultaneously.
Spread spectrum Frequency Hopping
Using Spread Spectrum Frequency Hopping, a technique that changes the frequency of the carrier over a hundred times per second, the radio “hops” in a
Frequency hopping provides reliable communication at low bit error rates as well as increased bandwidth and interference avoidance.
Output Power
Radio power output is 16dBm (min.) at antenna port. Power emitted from antenna is up to 36dBm EIRP - US version, or 20 dBm EIRP – European version. In Low power mode, power output is 2dBm.
Antennas
There is a variety of standard antennas and cable types for different gain levels.
Antenna Types
•Basic antenna - antenna gain of 8.5dBi.
•Medium gain antennas - antenna gain is either 12dBi or 18dBi.
•High gain antenna - antenna gain is 24dBi.
Cable Types
•Thin cable - this cable is thin and flexible, but its attenuation is relatively high.
•Thick cable - this cable is heavier and less flexible; its attenuation is lower.
•Low loss cable - this cable is thicker, heavier and more expensive, but its attenuation is very low.
14 | SALES: 0118 965 5100 |
