Centrad GF266 Manuel D'instructions page 24

Triangle and ramp
Frequency adjustment
Frequency display
Resolution
Accuracy
Modulation schemes
Internal modulation
External modulation
AM
FM
F
FSK
PSK
Frequency sweep
50 Ω output
Amplitude adjustment
Switchable attenuator
Adjustment resolution
Offset voltage
TTL output
Frequency counter
OTHER CHARACTERISTICS
Power supply
Mains input
Power consumption
Dimensions
Weight
Operating temperature
Storage temperature
Maximum relative humidity : (see figure 6)
Safety
EMC
Delivery accessory
: Non-linearity less than à 1% (up to 100 kHz)
: Thumbwheel switch and cursor selecting the step.
: 10 digits in extended mode, 4 digits in standard mode
: 11.36 µHz up to 10 Hz
: 186 mHz from 10 Hz to 12 MHz
: ± 50 ppm +10 µHz
: Sweep Lin & Log, int/ext AM, int/ext FM, int/ext FSK, int/ext PSK.
: 800 Hz frequency, sine for AM and FM, square for FSK and PSK
: Input impedance
Control voltage
Bandwidth
Maximum allowable voltage
: Internal: Adjustable depth in steps: 25, 50, 75, 100%.
External: The depth depends on the input voltage: 0V--> 0%, 1Vrms --> 100%
: Carrier adjustable from 100 Hz to Fmax, deviation adjustable from 49.92 Hz at carrier
: Freq1 & Freq 2 adjustable from 100 Hz to Fmax
: Phase 2 adjustable from 0 to 360° in 1° steps
: Linear or logarithmic
Ramp period
Sweep depth
(F stop min = F Start + 100 Hz, 10 Hz minimum step)
Ramp start sync pulse on BNC socket IN/OUT VCF
: Protected against permanent short-circuits and reverse power surges up to
+/- 60 V DC, connection to BNC socket.
: 0 to 20 V peak to peak (open circuit), 0 to 10 V peak to peak into 50Ω
: 0dB, - 20 dB, - 40 dB
: 100mV at 0dB, 10mV at -20dB, 1mV at -40dB
: Independent of amplitude and attenuation settings
No-load : Rated to 0V, ± 10V swing, in 100mV steps
Into 50Ω : Rated to 0V, ± 5V swing, in 50mV steps
: Protected against permanent short-circuits and reverse power surges up to
+/- 60 V DC, connection to BNC socket.
Fan-out > 10, Rise and fall times less than 10 ns.
: 5 automatic ranges from 0.8Hz to 25 MHz, 1 range from 25 to 100 MHz
Display
Measuring input
Maximum allowable voltage : 30V rms
: 230V ± 10% - 50/60Hz
: "Europe CEE22" socket
: 30VA max
: D = 250mm W = 220mm H (feet folded) = 105mm H (feet unfolded) = 140mm
: 3.2 kg
: +5°C to +40°C
: -10°C to +50°C
: Class I
: EN 61010-1 - Overvoltage category II, pollution degree 2
: EN 55011 Group 1 Class B, EN 50082-1 Performance criterion B
: 2 poles + earth cable
: 10 kΩ - BNC socket
: 1 V rms for 100% AM, max deviation in FM
: TTL level (0-5V) for FSK and PSK
: DC at 20 kHz (AM, FSK, PSK)
DC at 5.6 kHz (FM)
: ±60 V
: 10 ms to 10 s in 10ms steps
: 0.36 Hz to Fmax
: 5 digits, floating point
: BNC socket, impedance 1 MΩ // 30 pF
- 24 -
Fig 6
Maximum relative
moisture