FMPX (FM Stereo Generator)
This is a high-quality low-cost FM Stereo Encoder. It converts left and right audio to MPX-encoded signal to modulate an FM transmitter (like our FM05TX-NV) for stereo broadcasts. It is of extremely high quality audio with a channel separation greater than 40db. It can be switched to Mono or Stereo thru an optional toggle switch. Left and Right inputs are independently adjustable. The inputs pass thru a ‘brick wall’ 15KHz low-pass filter before multiplexing. The composite MPX output passes thru a 53KHz low-pass filter and amplified to provide a crystal clear stereo broadcast sound.
Product Details
Specifications:
- Channel Separation: >44db
- Input impedance: 10K unbalanced
- Input Frequency response: 10Hz
-15KHz
- Input level: 0.25V up to 2.5V p.p. (adjustable)
- Pilot Level: 10%
- Pilot Frequency: 19KHz +/- 2Hz
- Output impedance: 10K unbalanced
- Output
level: 350mV - 2.5V p.p (adjustable)
- Encoding system: MPX
- THD: 0,05% max @ 1KHz
- Power supply: 9 - 12V DC @ 40mA
ASPiSYS
Design and Development of Electronics and Software Systems