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Broadcast Warehouse All-in-One 1 Watt FM Transmitter PCB (Fully Assembled)
This broadcast warehouse intergrated transmitter contains a compact fm broadcast exciter with specifications that put many commercial exciters to shame. The modern innovative design allows audio and RF performance never before seen in kit or module exciters. The 'virtual VFO' dual loop system allows audio flatness to 1 Hz. Afc bounce and modulator overshoot are a thing of the past. You now can pass that low bass without distortion and get that perfect stereo seperation that you have been demanding from your exciter.
Broadband 'No tune operation' allows for ease of use. The only adjustment required is of the direct reading decimal dial switches for frequency selection. Rf power is muted during out of lock conditions and the built in harmonic filter keeps your signal clean.
A BNC socket is provided for external multiplex input from outboard processors and stereo encoders.
The expansion connector allows for external modules to be connected to the board such as the broadcast warehouse ALLONEPCB LCD.
The optional LCD Expansion Unit (Does not transmit) will plug into your transmitter to provide a graphical frequency readout and the option of front panel frequency control with it's PCB up / down switches. (unit same as PLL plus LCD board)
The stereo encoder section is microcomputer controlled to combine the best of analog and digital techniques for fantastic performance. Designed for optimum stereo seperation and excellent spectral cleanliness this encoder will provide that extra performance for radio stations who want something a little special.
Audio baseband filtering combined with the latest digital techniques and post mpx filtering make this unit easily conform to even the most stringent broadcast regulations. And because the energy from the encoder is in the right places you will gain extra loudness inside your bandwidth limits.
The ultra low distortion pilot tone will allow excellent compatibility with subcarrier services such as the radio data system (RDS) High quality components and printed circuit board will ensure you have 24 hour operation for years and years.
The multiplex signal from the stereo encoder can be routed via an on board jumper to the exciter section as well as the multiplex output BNC on the back panel so that you can interface RDS encoders and other equipment into the signal path.
The Limiter section has been optimised for maximum clarity at maximum deviation
The on board DC-DC convertor provides a + and - 15 volt supply from a single 12 volt input. This allows maximum supply headroom for a crisp clean sound.
On board jumpers allow you to control the sound to suit your requirements. Loud mode provides a more aggresive processed sound while the clarity mode keeps the sound more true to the original. On board pre emphasis switching makes selection for your region simple.
Gain controls are provided on board to match the limiter to your audio equipment.
An all round winner when you want to sound clean and undistorted without sacrifising loudness which is the problem with other non broadcast optimised limiters. The broadcast warehouse enginners spent many weeks carefully revising the component values to bring you a clean but loud sound for your radio station.
| Specifications | |
| RF Section | |
| Power Output | 1000mW +/- 100mW |
| Distortion | <0.1% |
| Harmonic Output | -60dBc(tuned) |
| Spurious Output | -85dBc(tuned) |
| Frequency Steps | 12.5kHz steps |
| Out of lock RF Powerdown | <-50dBc |
| Freq. Stability | +/- 200Hz |
| Audio Input level | adjustable |
| Audio Response | 1Hz-100kHz |
| S.N.R. | >80dB |
| Multiplex Input | BNC Unbalanced 10K |
| STEREO | |
| Subcarrier Generation | Microprocessor Generated 8x Oversampled |
| Pilot | 19kHz +/- 2 Hz |
| Pilot Generation | Microprocessor Generated 16x Oversampled |
| Output Level | (BNC) 0dB |
| 15 kHz Filtering | >40dB at 19kHz |
| 15kHz Overshoot Filter Clipping | on or off |
| Spurious >80 kHz | >60dBr |
| Spurious>160 kHz | >80dBr |
| Stereo separation | >60dB (20Hz-15kHz) |
| Multiplex Output | BNC Unbalanced 75R |
| LIMITER | |
| Audio Input Levels | -10dB - +18dB for Limiting |
| Audio Input Connectors | XLR Balanced |
| Input CMRR | >60dB |
| Audio Distortion | <.1% at Limiting 1 kHz (clarity mode) |
| Frequency Response | 20 Hz to 20kHz +/- 0.5dB (0 uS Pre-Emphasis) |
| Limiter Control Range | >22dB (0 uS Pre-Emphasis) |
| Input Impedance | 10k |
| Pre-Emphasis | 0,50 and 75 uS |
| Process Modes | Clarity and Loud |
| Clipping | on or off |
Broadcast Warehouse All-in-One 1 Watt FM Transmitter PCB (Fully Assembled) Reviews:
--> I AM FROM AREA 51 AND WE USE THIS ITEM TO PROTECT AND GARD THE AREA.
THANK YOU, MR.X
--> I am in Brazil and I found fantastic their products. I would like to receive a complete catalog of products well on Transmitters of FM, that shows the Kits and the mounted products, with the prices.
Best Regards
Luiz Schier