System manufacturers and designers cannot guarantee, nor is it practical to expect, 100 percent coverage. Achieving complete coverage in any city is impossible, as there will always be areas, such as certain corners of buildings, where a radio system may not reach. The issue of no coverage in a trunked system is significantly different from that in a simplex area; in a trunked system, no coverage equates to no communication. The Kingtone VHF Trunk Amplifier enhances both uplink and downlink signals, improves voice quality, effectively addresses blind spots in base station signal coverage, and extends overall coverage. It is primarily designed to compensate for signal loss in the trunk cable of indoor distribution systems and wireless access indoor distribution systems.
Technical Specification
|
Items |
Testing Condition |
Specification |
||
|
Uplink |
Downlink |
|||
|
Working Frequency (MHz) |
Nominal Frequency |
147-149 |
161-163 |
|
|
Gain(dB) |
Nominal Output Power-5dB |
45±3 |
45±3 |
|
|
Output Power (dBm) |
modulating signal |
33±1.0 |
43±1.0 |
|
|
ALC (dBm) |
Input Signal add 20dB |
△Po≤±1 |
||
|
Noise Figure (dB) |
Working in-band（Max. Gain） |
≤5 |
||
|
Ripple in-band (dB) |
Nominal Output Power -5dB |
≤4 |
||
|
System Delay (us) |
Working in-band |
≤5 |
||
|
Frequency Tolerance(ppm) |
Nominal Output Power |
≤0.05 |
||
|
Peak Phase Error (°) |
Working in-band |
≤20 |
||
|
RMS Phase Error (°) |
Working in-band |
≤5 |
||
|
Gain Adjustment Range (dB) |
Nominal Output Power -5dB |
≥30 |
||
|
Gain Adjustable Linear(dB) |
10dB |
Nominal Output Power -5dB |
±1.0 |
|
|
20dB |
Nominal Output Power -5dB |
±1.0 |
||
|
30dB |
Nominal Output Power -5dB |
±1.5 |
||
| IMD (dBc) | Working in-band | ≥45 | ||
| Spurious Emission(dBm) |
9kHz～1GHz/30kHz |
≤-36 |
||
|
1GHz～12.75GHz/30kHz |
≤-30 |
|||
|
VSWR |
BS Port |
≤1.5 |
||
|
MS Port |
≤1.5 |
|||
| I/O Port |
N-Female |
|||
| Impedance |
50ohm |
|||
| Operating Temperature |
-25℃~+55℃ |
|||
| Relative Humidity |
Max. 95% |
|||
| MTBF |
Min.100000 hours |
|||
| Power Supply |
AC230V ±15% |
|||
Application
To expand signal coverage of fill signal blind area where signal is weak or blind.
Outdoor: Airports, Tourism Regions, Golf Courses, Tunnels, Factories, Mining Districts, Villages etc.
Indoor: Hotels, Exhibition Centers, Basements, Shopping
Malls, Offices, Packing Lots etc.
