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Radio Frequency Signal Generator
GAO A0230005

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Overview – Radio Frequency Signal Generator

This RF signal generator offers a frequency ranges from 300 kHz to 300MHz. It features AM and FM modulation functions. The generator has optional RS-232C and IEEE-488 (GPIB) interfaces.

Technical Specifications – Radio Frequency Signal Generator


Carrier Frequency
Range
300 kHz to 300 MHz
Resolution
100 Hz (≤150 MHz); 200 Hz (>150 MHz)
Frequency Accuracy
± 5 × 10-6
FM (Frequency Modulation)
Max. Deviation
100 kHz (CF ≥1 MHz) CF ×10% (CF<1 MHz)
Resolution
100 Hz (CF ≤150 MHz) 200 Hz (CF >150 MHz)
Accuracy
±10% of Max. dev. (CF ≥1 MHz, AF= 1 kHz )
Distortion
<0.3% (Dev=75 kHz, AF=1 kHz, Demod.BW=50 Hz to 15 kHz, De-emp.= 50 µsec)
RF Output
Range
-8 dBµ to 120 dBµ, open circuit;
-121 dBm to 7 dBm, 50 Ω
Resolution
0.1 dB
Accuracy
±1.5 dB (20 dBµ to 120 dBµ);
±2.0 dB (-8 dBµ to 20 dBµ)
Signal Source Impedance
50 Ω
Spurious Output
< -30 dB
Frequency Flatness
±1 dB (100 dBµ)
Harmonics
≤ -25 dBc
Non-harmonics
< -40 dBc
Residual Modulation (S/N)
FM component > 70 dB
At Referenced to 75 kHz Deviation, AF=1 kHz CF=10.7, 76 to 150 MHz;
AM component > 50 dB
At Referenced to 30% AM, AF=1 kHz except at CF=80 MHz / N, where N =3,4,5, …
FM Sereo (S.FM)
Separation
> 50 dB (AF= 400 Hz to 1 kHz)
> 35 dB (AF= 100Hz to 10 kHz)
> 30 dB (AF= 50 Hz to 15 kHz)
at CF=10.7, 76 to110MHz, EXT. Stereo Main 90%, Pilot OFF
Pilot
19 kHz ±2 Hz
Distortion
<0.3% (CF=10.7, 76 to 110 MHz, AF=INT 1 kHz, Stereo Main 90%, Pilot OFF)
External Modulation Frequency Flatness
50 Hz to 15 kHz (±1 dB) at CF=10.7,
76 to110 MHz, Stereo Main 90%, Pilot OFF
Amplitude Modulation (AM)
Range
0 to 60.0%
Resolution
0.1%
Accuracy
At AF= INT 1 kHz
(indication value × ±5%), CF= 500 kHz to 110 MHz
(indication value × ±1%), CF: Other
Distortion
< 0.65% (CF: 400 kHz to 30 MHz except at CF=80 MHz / N, where N=3,4,5, ...)
< 1.5% (CF: 30 MHz to 100 MHz)
< 5% (CF: other)
With AM= 30%, AF=1 kHz, Demod.BW =50 Hz to 15 kHz
Modulation
Type
FM, AM
Int. mod. Frequencies
1 kHz and 400 Hz, ±2%
Ext. mod. Input Impedance
10 kΩ unbalanced ±10%
Ext. mod. Input Voltage
3 Vpp, ±4%
Ext. H/L LED Indicator
When LED is off,
3 Vpp ±3% (for AF ≤ 20 kHz),
3 Vpp ±5% (for 20 kHz < AF ≤ 100 kHz)
Other
Memory
100 points (non-volatile RAM)
Power Requirement
198 to 242 VAC, 47 to 53 Hz, 35 W maximum
Dimensions
255 mm × 280 mm × 108 mm
Weight
About 4.5 kg
Temperature
0 to 40 °C operation
Programmable Characteristics
RS-232C interface and IEEE-488 (GPIB) interface are optionally. With the interface, the instrument can be formed into an automatic test system under the control of a host computer together with other instruments


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