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The second one consists in an "SLAVE" dispositive of a master "Coder". This system is appropriated for FM repeaters, you send the signal to through digital links with data channels. An ingenious system evites the necessity of sinchronizing the slave coder with master coder. In both cases, the equipment disposes of an only MPX output and another one with R.D.S. signal attached with levels and relative phase between pilot signal (19 KHz) and R.D.S. subcarrier (57 KHz) in agreement CENELEC EN 50067 / EBU 3244. |
MAIN CHARACTERISTICS
Stereo Coder
Area
| · Normalized output of 3.5 V p.p. Z: < 20 ohms. |
| · Pilot signal output, to synchronize R.D.S. coders. |
| · Electronically balanced input, to 600 until 5000 ohms. |
| · Entrada de subportadora S.C.A. |
| · S.C.A. subcarrier input. |
| · Distorsion low of 0.02 % |
| · Signal/noise ratio over 80 dB. |
| · Channels separation of 60 dB (1 KHz). |
| · Working levels indications by "LCD" display with sequencial selection of the measures. |
| · 1 KHz low distorsion oscillator equipped, for own and other equipment calibration. |
Coder R.D.S.
Area
| · Microcontroller that stores and processes R.D.S. data to transmitt and check "LCD" display functions. |
| · RDS. PS - PI - PTY - TP - TA - AF - RT functions. |
| · Internal MPX-R.D.S. synchronization. |
| · Data recording from a "PC" through normalized RS-232 port. |
| · DPS / DSB modulation, 2.7 % (Other levels adjustable). |
| · LCD display area, where you´ll see R.D.S. main functions. |
Other coder
SLAVE Version
| · Repeats all data of other R.D.S. CODER. |
| · Data input from master CODER through RS-232 port in current time. |
| · No synchronization need between slave and master coder. |
| · DPS / DSB modulation, 2.7 % (Other levels adjustable) |
| · LCD display area, where you´ll see "PI" received RDS data or a lost data message if you don´t receive them (in that situation, last data received is indefinitely repeated). |
