1. The performance of the equipment meets or is due to the following criteria:
"Technical Specification for Meter-wave FM Broadcasting GB/T 4311-2000"
"Technical Requirements and Measurement Methods of Meter-wave FM Broadcasting Transmitter GY/T 169-2001"
Technical specifications:
1. RF frequency range 70 MHz to 108 MHz stepped 10 kHz
2. Output power 100W
3. Output impedance 50
4. RF Output Connector L16-50Omega
5. The residual radiation power is less than 1 mW and 60 dB lower than the carrier power.
6. Parasitic AM < 70dB (no modulation)
7. The allowable deviation of power can reach 100% when measured according to the nominal value of transmitter rated power.
Runtime in & plusmn; 10%
8. Carrier frequency allowable deviation & plusmn; 200Hz
9. Modulation frequency offset 75 kHz (100% modulation)
10. Audio input level amplification - 10dBm ~+10dBm step by 0.1dBm
11. Audio pre-emphasis 0, 50 and 75 US
12. Frequency response & plusmn; 0.05dB (10Hz-15KHz, 100% modulation, no aggravation, no weight)
& Plussmn; 0.1dB (10Hz-15000Hz, 100% modulation, weighted and weighted 50us)
13. Level difference of left and right channel < 0.1dB (100% modulation)
14. Stereo Separation (> 50dB 30Hz-15000Hz)
15. Signal-to-noise ratio (> 65 dB), 1 kHz 100% modulation
16. Distortion < 0.2% (10Hz-15000Hz, 100% modulation)
17. Pilot frequency 19 kHz & plusmn; 0.5 Hz
18. Pilot modulation 10% 7.5 kHz (0-12KHz)
19. Efficiency (>70%)
20. forced convection by heat dissipation
21. Power supply voltage AC220V & plusmn; 20% 50Hz/60Hz & plusmn; 5Hz
3. Physical Characteristics
1. Standard chassis 21 inches
2. Chassis size 4U
3. Whole machine weight 20kg
4. Temperature range 5 ~40 ~
5. Relative humidity < 95%
6. Elevation < 4500m