TV FM Signal transmitter (SMDS system)
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price: 495 nominal dollars 595 nominal dollars |
* Application: audio, video data transmission
* Information transmission distance while using directional antennas with a 10 dB gain amounts to 5-15km
(depending on power)
* Reception is effected to a satellite tuner
* Digital frequency stabilization
* There is an additional possibility of two sound carrier transmission - stereo in an FTV-300/S system
Product specifications |
CCTS Input | 1 V |
Audio input | 0.6 V |
Modulation kind | FM |
Operating frequency in the range of (to order) | 950 - 1200 MHz |
Operating frequency band | 30 MHz |
Maximum output level | 4 W |
Supply voltage | 22V/1A |
Antenna-feeder device connection by resistance | 50 Ω |
Transmitter FTV-300 User manual
TV transmitter realization scheme using an FTV-300 is given in fig. 4. (Frequency modulation enables getting a set power at less hardware cost and getting a higher coefficient efficiency in comparison to the amplitude modulation of an FTV-200. It enables exchange of emission frequency band to SNR while operating in after-threshold area).
Transmission range on a 1000MHz frequency amounts to 8km when a receiving tuner sensitivity is - 64dBm ≈ 44dB/µV (with a 22dB store above the threshold level) while having transmitting and receiving antennas with a 14dB gain (TA-300 antenna). An application of a SR-100 satellite tuner is dotted in fig.4 as an example. It is a small dimension satellite tuner with supply of from up 12V. Its application enables effecting TV programs reception in moving transport (with a power supply from an on-board power system).
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To tune a satellite tuner to the signal from an FTV-300, FTV-300/S transmitter, set a heterodyne frequency in the tuner menu. There is a possibility in a HTB 3000 tuner to set the following heterodyne frequencies: |