PROMAX EC-696
Analog Communications Training System
EC696
EC-696
PROMAX EC-696
Analog Communications Training System
EC696
EC-696
The PROMAX EC-696 Analog Communications Training System is composed of two modules of an emitter and receiver. In order to configure various analog transmission systems, several types of emitters, transmission channels, receivers, modulators, and demodulators are included.
- Modulations: AM/FM/PWM/FDM
- Input: Generator/Microphone
- Output: Oscilloscope/Headphones
- Transmission: Two-wire, coaxial, Fiber Optics, Infra Red/Radio
- Emitter Module:
- Signal inputs:
- CO1 and CO2: Input from a generator
- Maximum level: +/- 3 V
- Bandwidth: DC to 20 kHz
- Input impedance ≥ 20 kOhm (1 kHz)
- MIC1 and MIC2: Microphone inputs
- Sensitivity: 6 mVpp, adjustable
- Input impedance: ≥ 20 kOhm (1 kHz)
- CO1 and CO2: Input from a generator
- Modulators:
- AM modulator: Voltage-controlled gain amplifier
- Carrier frequency: 100 kHz
- Modulation index: 0 to 100%
- Bandwidth: DC to 20 kHz
- FM modulator: Voltage-controlled oscillator
- Carrier frequency: 100 kHz
- Frequency deviation: +/- 50 kHz
- Bandwidth: DC to 20 kHz
- Pulse modulator (PWM):
- Carrier frequency: 100 kHz
- Duty cycle: 40% to 70%
- Bandwidth: DC to 20 kHz
- FDM/FM modulator: Voltage-controlled oscillator
- Carrier frequency: 300 kHz or 100 kHz, selectable
- Channel bandwidth: DC to 20 kHz
- AM modulator: Voltage-controlled gain amplifier
- Emitters:
- Bifilar cable transmitter: Output through operational amplifier
- Maximum level: +/- 3 V
- Coaxial cable transmitter: Output through operational amplifier
- Maximum level: +/- 3 V
- Fibre optic transmitter:
- Emission: By LED Photodetector
- Emitting band: 650 nm (red color)
- Infrared ray transmitter:
- Emission: By LED Photodetector
- Emitting band: 950 nm
- 27 MHz emitter:
- Output level: 0 dBm
- Modulation index: 50%
- Antenna: 1.5 m cable Monopole
- Bifilar cable transmitter: Output through operational amplifier
- Signal inputs:
- Receiver Module:
- Receivers:
- Bifilar cable receiver: Direct, without processing
- Coaxial cable receiver: Direct, without processing
- Fibre optics receiver:
- Type (PIN) type: Photodiode
- Receiving band: 400 to 1100 nm (90% efficiency)
- Infrared receiver:
- Type PIN type photodiode:
- Receiving band: 800 to 1000 nm (50% efficiency)
- Radio receiver:
- Peak detector
- Receiving band: 27 MHz
- Antenna: 1.5 m Cable
- Demodulator specifications:
- AM demodulator: Fast detector
- Bandwidth: DC to 20 kHz (bifilar and coaxial); 300 Hz to 20 kHz (fibre, infrared and radio)
- FM demodulator: DPLL type
- Carrier frequency: 100 kHz
- Bandwidth: DC to 20 kHz (bifilar and coaxial)
- Pulse demodulator (PWM): Integrator type
- Carrier frequency: 100 kHz
- Bandwidth: DC to 20 kHz (bifilar and coaxial); 300 Hz to 20 kHz (fibre, infrared and radio)
- FDM/FM demodulator: DPLL type
- Carrier frequency: 300 kHz or 100 kHz selectable
- Multiplex bandwidth: DC to 20 kHz (bifilar and coaxial); 300 Hz to 20 kHz (fibre, infrared and radio)
- AM demodulator: Fast detector
- Output specifications:
- Earphone output:
- Output stage: AB Class
- Volume control: Independent for left and right channels
- Output power: 200 mW over 32 # (3 Vpp in C)
- Oscilloscope S1 and S2 outputs:
- Output level: ≥ 400 m Vpp (3 Vpp in A)
- Earphone output:
- Receivers:
The PROMAX EC696 Analog Communications Training System has several types of emitters, transmission channels, receivers, modulators and demodulators, in order to shape a transmission system easily. For instance, it permits the user to compare the advantages of several transmission systems to others, including those fibre-optics based, or to analyze interference phenomena.
The EC-696 takes into account ease of use, with the capability of measuring the electrical signals throughout by means of a series of test points. To this end, circuitry is located into a desk-like cabinet, with a transparent fold-down cover for a complete access. The equipment is composed of one Emitter set and one Receiver set, to be linked during training, by the selected transmission method.
Emitter Module EC-696/E
The EC-696/E emitting system is provided with several inputs where generators or microphones can be connected. A set of sequential controls allows the equipment to be configured quickly, by selecting the input, modulation (AM, FM, PWM) or transmission modes through five different channels: twin cable, coaxial, fibre-optic, infrared or radio.
Receiver Module EC-696/R
Signals processed by the EC-696/E can be received and demodulated by the EC-696/R. This system is configured by four pushbuttons and a logic control, the same way as in the emitter. The demodulated and separate signals received can be displayed on the screen of an oscilloscope or monitored by means of earphones.
| Brand | PROMAX |
|---|---|
| Condition | NEW |
| Vendor Alias | EC-696 |
