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8100 General Purpose Receiver |
Caractéristiques (en anglais) |
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General data
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Screening
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60 dB
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Spurious Emissions
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1 nW maximum
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Battery State Indicator
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Visual on display plus audible warning
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Battery Life
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8 hours, dependent upon volume level
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Charging Time
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16 hours
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Weight
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6 kg (including case and batteries)
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Dimensions
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330 x 115 x 240 mm (including case)
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Operating Temperature Range
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0 - 40°C
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Lock
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Front Panel control lock
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Frequency
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Range
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100 kHz - 26 MHz (reduced specification)
26 MHz - 1000 MHz
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Accuracy
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± 2.5 kHz
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Tuning Increments
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0.5, 1, 5, 6.25, 10, 12.5, 20, 25, 50 kHz steps
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Frequency Offsets
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5, 6.25, 10, 12.5, 25 kHz steps
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Frequency Scanning
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Between user set limits
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Lockout Frequencies
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Up to 100
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Hold Time
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Adjustable 0-9.9 seconds
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Dwell Time
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Adjustable 0-9.9 seconds
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Resume Time
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Adjustable 0-9.9 seconds and off
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Amplitude
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Measuring Range
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-10 dBµV to + 110 dBµV : 26 - 1000 MHz
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7.5 kHz bandwidth
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+5 dBµV to + 110 dBµV : 100 kHz - 1 MHz
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Average detection
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0 dBµV to + 110 dBµV : 1 - 26 MHz
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Level Readout Resolution
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0.1 dB
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Displayed Range
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84 dB bargraph display
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Level Accuracy
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± 1.5 dB max, typically ± 0.5 dB : 26 - 1000 MHz
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Hold Time
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Adjustable 0-9.9 seconds
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7.5 kHz bandwidth
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± 3 dB : 100 kHz - 26 MHz
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Level Detection Time Constants
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Average 5 ms, 0.1 s, 1 s.Peak hold time 1 s
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Measuring Units
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dBµV, µV, dB relative, dB µV/metre, dBm
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Selectivity
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IF Frequencies
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301.5 MHz, 21.4 MHz, 455 kHz
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Bandwidth 3 dB
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+5 dBµV to + 110 dBµV : 100 kHz - 1 MHz
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8101
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7.5, 15 and 120 kHz
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8102
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7.5, 15, 20 and 120 kHz
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8103
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7.5, 15, 25, 120 kHz
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Adjacent Channel
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Greater than 45 dB. (12.5 kHz channel spacing)
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Rejection
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Greater than 50 dB. (25.0 kHz channel spacing)
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Image Rejection
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50 dB minimum. Typically 70 dB (level required to produce an indication of 0 dBµV).
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IF Rejection
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70 dB minimum. (230-400 MHz, 50dB minimum) Typically 80 dB
(level required to produce an indication of 0 dBµV).
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Spurious Response Rejection
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Typically 50 dB
(level required to produce an indication of 0 dBµV)
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Blocking
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75 dBµV minimum
(1 dB level change, 0 dBµV signal, 2 MHz away)
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Intermodulation
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55 dB minimum (1 mV p.d. input, 50 kHz separation)
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Input
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RF Input Impedance
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Nominally 50 Ω
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Antenna Input
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“N” type connector
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Input VSWR
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Less than 2: 1 without RF attenuation
Less than 1.4 : 1 with RF attenuation selected
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RF Attenuation
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20 dB
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IF Attenuation
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10, 20 or 30 dB
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Max. Safe Level
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3.5 V rms (250 mW) +23 dBm at max. Sensitivity
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Overload Display
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Visual and Audible
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Audio
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Audio Demodulation
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AM, FM
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Typical Signal-to-Noise Ratio (S+N/N, audio filter selected):
AM: Typically 10 dB (6 dB < 26 MHz) for 0 dBµV signal, 30 % modulation, 1 kHz tone, audio filter in.
FM: Typically 20 dB (14 dB < 26 MHz) for 0 dBµV signal, 1.5 kHz peak deviation, 1 kHz tone, audio filter in.
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Audio Filter
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300 Hz ±50Hz - 1 dB to 2.4 kHz ± 300 Hz - 3 dB (switchable).
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600 Ω Line Output
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Adjustable from Front Panel. Nominally 0 dBm (600 Ω)
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Audio Output
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1.0 W to 3.0 W (dependent upon battery state)
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Modulation Measurement: (with 400 Hz Modulation)
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AM
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Range
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0 to 90% (0 to 126% indicated)
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Accuracy
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± 5%
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FM (7.5 kHz bandwidth)
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Range
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0 - 3.7 kHz peak deviation
(0 - 4.2 kHz indicated)
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Accuracy
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± 500 Hz
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FM (15 kHz bandwidth)
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Range
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0 - 7.5 kHz peak deviation
(0 - 8.4 kHz indicated)
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Accuracy
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± 500 Hz
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FM (20 kHz bandwidth)
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Range
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0 - 10 kHz peak deviation
(0 - 16.8 kHz indicated)
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Accuracy
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± 500 Hz
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FM (25 kHz bandwidth)
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Range
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0 - 12.5 kHz peak deviation
(0 - 16.8 kHz indicated)
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Accuracy
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± 500 Hz
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FM
(120 kHz bandwidth)
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Range
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0 - 60 kHz peak deviation
(0 - 84 kHz indicated)
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Accuracy
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± 5 kHz
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Memory
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Memory
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40 memories of receiver status
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Memory Scanning
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All 40 memories or any selected number
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Hold Time
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Adjustable 0 - 9.9 seconds
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Dwell Time
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Adjustable 0 - 9.9 seconds
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Resume Time
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Adjustable 0 - 9.9 seconds and OFF
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Memory Backup
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10 years
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Auxiliary Outputs
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Serial Data
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RS 232 control of all functions
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Loudspeaker
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1.0 W to 3.0 W into 8 Ω (dependent upon battery state)
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Low Level Audio (Line Out)
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Variable using Front Panel control but nominally 0 dBm (600 Ω)
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Signal Level
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Full scale on bargraph 6 V
Noise level approx 2V (typical)
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2 Squelch Operated Changeover Relay Contacts
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Maximum 0.5 A, 28 V dc contacts electrically isolated from receiver.
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Demodulation
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Unfiltered demodulator output
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