AM-FM Radio Trainer Model ETR 043
AM-FM Radio Trainer Model ETR 043
The Sci-tech AM-FM Radio Trainer Model ETR 043 has been designed from a Stereo Radio Tuner equipped with the most advanced reception circuits.
Item Description
– Name of the Broadcast Station
– Radio Data System (RDS)
– Alternative Frequency (AF)
– Digital Tuning
– Current Time Display (CT)
– Digital Signal Level display
– Frequency range (FM, MW, LW)
– FM: 87.5 – 108 MHz
– AM: 531-1,602 kHz, 153-279 kHz
– Direct tuning through frequency introduction
– Automatic Broadcast Station search
– Menu Selection Display
– 18 Preset FM Stations
– 12 Preset AM Stations
Technical Specifications
General Specification:
DC Output: 3.3V , 5V, 8V 0.2A
Operation Conditions: 0 to 45C , 85% or Less(R.H.)
Input Power: AC 220V, 50/60Hz 1-Phase (or AC110V, 50/60Hz 1-Phase by Order)
The block diagrams consist of the following functional modules:
– Tuner Section
– RDS Demodulator
– Automatic Tuning Section
– Sound Control
– System Control
– BUS Interface
– Mute Control
– AGC Detector
– Over-Voltage Detector
– Power Amplifier
– Multiple Voltage Regulator
– Auxiliary Output Signal
– Audio Section
Each one of the functional sections has several test points which permit the analysis and monitoring of the main electrical signals of the tuner. All the test points are protected against accidental shorting.
See also different:
* Discontinuous rectification * Comparison of packed and sieve plate column * Vacuum mode possible * Plates in sieve plate column removable
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