NA771 walkie talkie communication antenna 144/430mhz handheld flexible antenna two way radio accessories for Ham radio
Product Description
FEATURES:
High Quality NA-771 Gain Antenna
Antenna type:Soft Antenna
Connector:SMA-F
Max Power:10W
Impedance:50 om
Band:Dual band VHF/UHF
Frequency:144/430MHz(130-174MHz,400-480MHz)
Gain:2.15/3.0dB
V.S.W.R:Less than 1.5
Weight:29g
Length:39cm
Color:black
FAQ
Q: Why sometimes your partner's voice is intermittent?
A: Please note that you are within normal communication range, If you want use radio in distance range, please change other antenna with a bigger output power.If still same problem, please send the radio back to your authorized dealer repair.
Q: Can't turn on talky and even it is switch on, it often shuts
off automatically?
A: Please check the battery contacts on the walkie talkie. If it is
broken or twisted, please return the radio to your authorized dealer for maintenance during warranty.
Q: Can't transmit or receiver signal with other members?
A: First, please verify that the channel frequency and the CTCSS
you are used the same as those of your group members. Please make sure that you and your partners are all within the radio coverage, If the channel frequency and the CTCSS are the same.
Q: Why sometimes received voice from other groups?
A: Two way solutions.You can change another channel or change another channel frequency by PC software.
Q: Which is better -VHF or UHF?
A: epends on the terrain. The UHF signal is attenuated or
absorbed by foliage, rough terrain and trees, VHF does better outdoors. The VHF has difficulties penetrating steel and
concrete, UHF does better in and around buildings. If you use the radios in both environments, we prefer using UHF band.
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