BDA (Bi-Directional Amplifier) is used to provide bi-directional communication between radio terminals and the base station in order to fit in any kind of environments. It can be used outdoors to extend the coverage range of base stations, making communication services available in areas with no or weak signals. Additionally, it can be used indoors as the signal source to improve signal strength. With a multichannel selecting unit, BDA can selectively amplify the signals, ensuring the frequency purity of repeated signals and the stability of output power. It has been widely used in scenarios such as tunnels, along roads and railways, indoor areas, outskirt areas and congested residential areas. It has excellent compatibility, widely used in trunking communication systems such as DMR, TETRA, APCO25, MPT-1327, as well as conventional communication systems.
Integrated RF BDA | |
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Dimensions(L×W×H)mm | 188*162*28 |
Powered Supply | Input: AC 220V, 50/60Hz, 0.5A Output: DC 5.0V/2.5A |
Power Consumption | 15W(Max.) |
RF Connector | SMA-F, 50Ω |
Dust & Water Protection | IP40 |
Frequency Range | 350M:361-366MHz(Downlink), 351-356MHz(Uplink) 860M:851-866MHz(Downlink), 806-821MHz(Uplink) |
Max. Output | Uplink:25±2dBm Downlink:25±2dBm |
Max. Gain | Uplink:75±3dB,Uplink:70±3dB(cable-access) |
Noise Figure | ≤6dB |
Max. Allowable Input Level | Downlink: -10dBm;Uplink:-10dBm |
Frequency Offset | 5×10^-8 |
With Fluctuations In | ≤5dB |
Time Delay | ≤1.5μs |
Mean Time Between Failures(MTBF) | ≥50000h |
Digital Fiber Optical BDA | ||
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Dimensions(L×W×H)mm | Donor Unit:320*442*44(cable-access),385*300*142( wireless-access) Remote Unit:385*300*142 | |
Powered Supply | AC 220V±20%, 50±5Hz | |
Power Consumption | Remote Unit:≤100W Donor Unit:≤30W(cable-access),≤100W(wireless-access) | |
RF Connector | N/F, 50Ω | |
Dust & Water Protection | Donor Unit:IP20 Remote Unit:IP65 (And wireless-access donor unit ) | |
Frequency Range | 320-400MHz 400-470MHz 5MHz Working bandwidth | |
Channel Bandwidth | 25kHz | |
Channel Capacity | 1~16 | |
Max. Output | Downlink:37±2dBm Uplink:-10±2dBm(cable-access),30±2dBm(wireless-access) | |
Max. Gain | Downlink:50±3dB,Uplink:45±3dB (cable-access) Downlink:90±3dB,Uplink:85±3dB (wireless-access) | |
Gain Adjustment Range | 30dB/1.0dB | |
Gain Adjustment Error | When the gain is 0 ~ 20dB, the error is less than 1dBWhen the gain is 21 ~ 30dB, the error is less than 1.5db | |
Noise Figure | ≤5dB | |
Max. Allowable Input Level | Downlink:10dBm (cable-access);-10dBm(wireless-access) Uplink:-10dBm | |
With Fluctuations In | ≤3dB | |
Time Delay | ≤35μs | |
Mean Time Between Failures(MTBF) | ≥100000h |