A、in
B、on
C、out
D、with
更多“The antennas of the trucks on deck are not fitted（）.”相关的问题
A、the range of antenna can cover everywhere in the world B、we can know the ship’s exact position C、that the distress alert can be located as soon as possible D、antenna of permanent earth stations may be directed towards fixed points in the sky
A、A. Where the jumper cable is connected to the output of the TX. B、B. Where the jumper cable is connected to the RBS. C、C. Where the jumper cable is connected to the output of the combiner. D、D. Where the jumper cable is connected to the antenna. E、E. Immediately outside the antenna.
A、VHF communications are basically line of sight B、the air is more dense the higher you go C、salt water is a poor conductor of sound D、sea water absorbs the radiated energy
A、A. Replace the wireless bridges with wireless access points. B、B. Install bi-directional amplifiers at both sites. C、C. Configure channel hopping on both wireless bridges. D、D. Replace the omni-directional antennas with Yagi antennas
A、The wireless card must be calibrated to the laptop. B、The correct preshared encryption key must be installed to boost the signal. C、The MAC address of the new wireless card will have to be added to the WAP to get the full signal. D、The antenna wires for the wireless card were not attached.
A、A. Install a high gain antenna focused towards the office wall. B、B. Run CAT5e cable to all of the rooms that have poor signal strength. C、C. Install a wireless repeater at the far end of the house. D、D. Install a second wired router in the far end of the house.
A、Up to four sites can share one PCM link. B、Several TRXs can share one antenna system. C、The mobile can listen to two base stations at the same time. D、Only one base station is needed per site. E、Sending and transmitting can be performed from the same antenna.
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