RFI FMC88108-6, Руководство пользователя

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INS-42037-1: FMC88108-6
User’s Manual
Asia Pacific | EMEA | Americas 11
2. Specifications
Note: Tested in non-translating mode of operation
(Tested at 1mV (-47dBm) RF input per channel and 75kHz deviation unless noted)
Electrical
Parameter Specification
FM modulation type F3E and F8E (direct carrier)
Frequency range 87.5MHz to 108MHz
Tx output connector BNC (female) 50 Ohms
Rx input connector BNC (female) 50 Ohms
Tx output levels per carrier -15dBm to -4dBm (individually adjustable)
Tx low level alarm -15dBm nominal
Number of Tx/Rx channels 6 maximum
Tx frequency stability ± 5ppm (other on request)
Tx and Rx synthesizers 50kHz increments
Reference frequency 6.4MHz
FM modulation bandwidth ± 100 kHz nominal
S/N ratio (stereo) with 50µS de-emphasis
≤ -60dB (filtered 20Hz – 20kHz)
Stereo separation (L into R)
≥ 45dB (40Hz – 15 kHz)
Stereo harmonic distortion
≤ 0.5% (40 Hz – 15 kHz)
Rx static selectivity
≤ -85dB @ ± 300kHz nominal
Operational Rx input level per channel 200µV (-61dBm) to 20mV (-21dBm)
Rx low signal alarm 100µV (-67dBm) nominal
Tx non synchronous AM
≤ -50dB (20Hz – 20kHz)
RF spurious and harmonics
≤ -60dBc
Combined Tx intermodulation products
≤ -60dBc
BIF (break in facility) level 3V r.m.s. max, balanced (adjustable)
BIF nominal frequency range 30Hz to 8kHz (with pre-emphasis)
BIF audio connectors
Isolated BNC’s (female)
BIF audio deviation per channel ± 68kHz nominal (± 0.5dB)
Translator Physical and Environmental Specifications
Operating Temperature -10°C to +45°C
Operating altitude
≤ 2000m
Relative humidity
≤ 90% non - condensing
A/C mains voltage 100V
– 240V full range
A/C mains consumption 25VA nominal
A/C frequency 50Hz / 60Hz
Dimensions 485mm x 470mm x 44mm
Weight 3.5 kg
Back Panel Connectors and Functions
RF output BNC female (50
Ω)
Rx input BNC female (50
Ω)
BIF input / output (looped)
Isolated BNC’s female (balanced)
Telemetry (input / output) D9 female
A/C mains input IEC plug
A/C fuse 1 Amp 20mm type
Chassis ground 5mm nut / bolt
Telemetry Controls and Alarms (via 9-pin D type female connector)
Pin 1
BIF switching
Apply “Ground” to activate BIF (100mA)
Pins 2 and 3 Ground
Pins 5 and 6
Summary alarm
S/C for fault (LK1 Pos A)
O/C for fault (LK1 Pos B)
Table 1