Description
Overview
GAOTek Analog Broadcast Transmitter is highly stable and reliable performance with near CD quality stereo sound effect. Compact 19-inch 2U chassis with all modules integrated, this 300 KW FM transmitter is small in size and easy in operation and achieves high working efficiency of more than 70% with less power loss.
Features
• Compact, lightweight, aesthetically pleasing design
• BLF188XR transistor for efficient, anti-VSWR performance
• Exciter with digital synthesizer and stereo coder
• Patented radiator tech, minimal wind resistance, efficient cooling
• Parallel interface, remote control, digital broadcast support
• Broadband power amp with redundancy for reliability
• Protection functions of over voltage
• LCD indicates working parameters
• Convenient for maintenance and fault determination
• AGC Power control of ensuring the stable output power without drift
• Long-life foreign high-quality gale axial fan
Technical Specifications
| Technical Parameters | |
| Power Output | 300 W |
| Output Impedance | 50 W, SWR less than 1.5:1 |
| Out Connector | L27 |
| Frequency Range | 87.5 MHz to 108 MHz, 50 kHz/Step |
| Frequency Deviation | ± 75 kHz = 100% |
| Stability Of Fq Dev | ± 2.5% over 6 months |
| Variation Of Center Fq | < 500 Hz/6 months |
| Center Frequency Shift | Due to ± 75 kHz Mod < ± 500 Hz |
| Dimensions | 18.90 in × 17.32 in × 3.54 in (48 cm x 44 cm x 9 cm) |
| Stereo Operation | |
| Audio Filter Attenuation | > 60 dB, 19 kHz |
| Stereo Separation | > 55 dB from 30 Hz to 15 kHz (typ.60) |
| Pre-Emphasis | 50 ms,75 ms opt. |
| Input Level For 75 kHz Deviation | + 10 dBm |
| THD | < 0.1% 30 Hz to 15 kHz |
| S/N Ratio | > 65 dB |
| Frequency Response | ± 0.25 dB 30 Hz to 15 Hz |
| AM Noise | -55 dB |
| Phase Difference | 0 ± 3° |
| Pilot Frequency | 19 kHz ±1 Hz |
| Mono Operation | |
| Input Level For 75 kHz Deviation | +3… +6dBm (Adj. On Front Panel) |
| Pre-Emphasis | 50, 70ms opt. |
| Frequency Response | ± 0.15 dB 30 Hz to 15 Hz |
| THD | < 0.1% 30 Hz to 15 kHz |
| S/N Ratio | > 65 dB |