Baofeng PTT Walkie Talkie BF-777S 5W 16Channels Intercom
Product Description
1) Output: ≤ 5W
2) Frequency: 400.00-470.00MHz
3) 16 Channels
4) PC Program
5) Flashlight Function
6) 50 CTCSS and 210 DCS Codes
7) Squelch Level
8) Battery Saving
9) VOX Voice Operated Transmitting
10) Busy Channel Lock
11) Low Battery Warning
12) Over Voltage or Low Voltage Protection
13) Channel Monitor
14) TOT (Time-out Timer)
15) Scrambling Function
16) Noise Reduction
17) Scanning Function
18) Dimension: 97x57x29 mm
Specification :
Frequency Range: |
400.00- 470.00MHz |
Storage Channel |
16 |
Rated voltage |
DC3.7 V |
Battery Capacity |
H-1500 mAh |
Battery Life |
About 8 Hours |
Frequency Stability |
±2.5ppm |
Work Temperature |
-20 °C to 60°C |
Frequency Combination |
PLL frequency synthesis |
Antenna Impedance |
50 Ω |
Wok Mode |
Same Frequency simplex Operation or |
Different Frequency simplex Operation |
Dimension |
97x57x29mm (Excluded Antenna) |
Transmitter |
Output Power |
≤3 W |
Modulation Mode(W/N Band) |
FM (F3E) |
Maximum Frequency Deviation (W/N Band) |
<5KHz(W), <2.5KHz(N) |
Spurious Power |
≤7.5 μW |
Adjacent channel power |
65dB (W) ,55dB (N) |
Spurious Radiation |
<-60 dB |
Receiving Current |
≤ 400m A |
Audio Distortion |
<5 % |
SNR |
45 dB(W), 42dB(N) |
CTSCC/DCS Frequency Deviation(W/N Band) |
0.7±0.1KHz (W), 0.4±0.1KHz (N) |
Receiver |
Sensitivity |
<0.20 μ V (12dB SINAD) |
Audio Power |
1 W |
Inter modulation Interference Resistance |
≥65dB (W), ≥55dB (N) |
Adjacent channel Sensitivity (W/N Band) |
≥65dB (W), ≥55dB (N) |
Audio Distortion |
<5 % |
Transmitting Current |
≤1200mA |
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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.