Why choose us
√ 30 years Walkie-talkie manufacturer direct supply, OEM/ODM service available
√ 5 professional R&D centers with an average of 10 years of experience to build efficient industry solutions for you
√ 100% strict quality control throughout the process to reduce after-sales risks
√ Sales network in 150 countries for immediate service
Product Description
BF-S51 is a professional FM two-way radio with a comprehensive analog feature set, such as BCL, VOX, TOT, CTCSS/CDCSS, etc. It covers your conventional communication needs. Also, our BF-S51 is a tough radio that can easily withstand a two-meter drop, making it an ideal choice for outdoor activities.
VOX
When used with a paired earpiece, BF-S51 enables the user to activate transmissions via voice without having to push the PTT button. Your hands won't be tied to your radio.
Low Battery Alert
When the battery gets too low, the LED light on the top of the radio will flash red and the user should start recharging his radio.
Monitor
When the signal is weak, the user can activate this feature which will enable BF-S51 to pick to the weakest signals on the current channel.
Scan
When the user activates this feature, BF-S51 will scan all the pre-defined channels on the radio and the user can easily access any communication activities on any channel.
TOT
By limiting each transmission time, Time-out Timer prevents channels from being unnecessarily occupied by mis-operation and thus improves channel efficiency.
CTCSS/CDCSS and STE
This can effectively prevent interferences from other conversations at the same frequency. It helps to filter out unwanted signals.
Product Parameters
| General |
| Frequency Range |
VHF: 136-174MHz / UHF: 400-470MHz |
| Channel Capacity |
16 |
| Channel Spacing |
25KHz/12.5KHz |
| Operating Voltage |
7.5V DC (±20%) |
| Battery Capacity |
1800mAh(Li-ion) |
| Frequency Stability |
±2.5ppm |
| Antenna Impedance |
50 Ω |
| Operating Temperature |
-20ºC 10to +60ºC |
| Weight |
253g(including battery pack) |
| Dimensions |
60(L)x36(W)x109(H)mm |
| Transmitter |
| Power Output |
H: 5W L:1W |
| Modulation |
16KΦF3E(W)/8KΦF3E(N) |
| Noise and Harmonic |
≤-36dBm |
| FM Noise |
-40 dB |
| Audio Distortion |
≤ 5% |
| Adjacent Channel Power |
≥ 65 dB(wide)/60 dB(narrow) |
| Modulation Limitation |
≤ 5KHz(wide)/2.5KHz(narrow) |
| Receiver |
| Sensitivity |
≤ 0.2uV(Wide)/ 0.25uV(Narrow) |
| Adjacent Channel Selectivity |
≥ 60dB(width)/ 55dB(narrow) |
| Intermodulation |
≥ 60dB (width)/ 55dB(narrow) |
| Spurious Suppression |
≥ 60dB(width)/ 55dB(narrow) |
| SNR |
≥ 45dB(Wide)/ 40dB(Narrow) |
| Rated Audio Output Power |
0.5 W |
| Rated Audio Distortion |
≤ 5% |
Accessories
About BelFone
Who are we?
BelFone (BFDX) founded in 1989, 30 years Focus on Communications, owned 5 R&D centers with more than 200 R&D engineers, is a Chinese leader in the design, manufacture and supply of digital radio products, systems and applications. BelFone is focus on developing best wireless communications strategy, technology and operations for clients and partners over 30+ years.
What do we have?
Two-way Radios
DMR
PoC
Analog
Multimode
System
DMR TIER IIII
DMR TIER III
BMC
DAS
Software Suite
Command & dispatcher
NMS
VRS
Where do we show up?
Public Safety
Public Safety/ Fire/ Justice/ Prison/ Highway/ Traffic
Commercial Business
Hotels/ Supermarkets/ Property Security
Utilities
Forestry and Water Resources/ Petroleum and Coal Mining/ City Management/ Major Events
Transportation
Logistics/ railroads/ airports/ terminals and ports
Emergency Industry
Hospitals/ Ambulances/ Rescue Dispatch/ Disaster Prevention/ Command/ Major Incidents
BelFone is expanding rapidly worldwide and the network of regional partners continues to grow, providing local support for Belfone's products and achieving 50% annual growth each year. Customers and partners trust BelFone's commitment to provide the most applicable custom solutions at affordable prices.
Partner with Belfone and let's win together.
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