2016年3月14日星期一

variables that influence the effective range of a two-way radio

The effective range of a two-way radio is dependent on several variables


1 Antenna: Make sure your antenna screwed on well to the antenna connector of the radio. (Damaged or improperly attached antennas can reduce your coverage dramatically)
BF-7110 two way radio with telescopic antenna greatly enhanced communication coverage
BF-7110 two way radio with telescopic antenna


2 Batteries: Use fresh batteries and to make sure that your batteries are fully charged


3 Surrounding terrain: Inside a building or even just a room with really thick concrete and steel walls will greatly reduce transmission signal. So,step outside or get near a wall opening or a window, transmitting from the highest point of a natural or manmade structure can noticeably increase the range of your handheld radio


4 Frequency: Which Is Better, VHF or UHF? VHF travel greater distances, but less suitable for highly obstructed areas. UHF with higher penetration, and much more effectively than VHF. Generally, UHF is the more popular band to use because it is a better all around signal, unless you need to transmit outdoors across great distances.

most BFDX two way radios both covered VHF and UHF frequency. you can choose your suitable frequency freely

2016年2月23日星期二

Commercial business digital radio BF-TD505

Commercial business digital radio BF-TD505
Commercial business digital radio BF-TD505 dedicated to business uses, such as hotel, public security, shopping mall, warehouse, forest. AMBE+2™ vocoder supply superior HD voice quality and make audio free from surroundings interference. As features with automatically received mode reply function BF-TD505 Commercial business digital radio is a smart way to grow into digital radio. 20 hours battery standby time can last for whole business day working.


Selling Point
• ETSI DMR standard, open standard for interoperability
• Color display with keypad, easy to operate
• Mixed Digital/Analog mode
• Superior HD Voice Quality with AMBE+2™ vocoder
• Compacted size and long battery service time
• Integrated voice and data
• Economic for migration from analog to digital

Features
Mixed Digital/Analog mode
Receive both analog and digital signals on a single channel and automatically selects the received mode to reply to the received call.
Private call, Group call and all call
Flexible communication for efficient cooperation
Big color LCD display
Show channel/frequency and others parameter
Small Size and Light Weight
Hold in hand in whole workday without difficulty, easy handle
Long Battery Standard Time (digital
20 hours, analog 14 hours)

Withstand whole using don’t need charging halfway
Excellent Audio Quality
Excellent Audio Quality free from surroundings interference.
Voice Encryption
Confirm discreet communication with voice encryption function
Remote Kill/Revive
Prevent data information let out from missing radio

2015年1月18日星期日