DESCRIPTION
Are used as microwave oscillation sources in CW, FM, AM and pulse modulation modes for tuning, adjustment and testing of radio electronic devices.
Provide power meter calibration. Measure losses, VSWR, attenuation, antenna parameters and antenna channels. May be used in automatic test systems as sweep oscillators for panoramic measurements of network parameters.
The built-in single-chip microcomputer automates the instrument operation, selects and sets the instrument parameters, provides parameter readout in the reselected units.
The dc amplifier zero calibration of the automatic power control system significantly increases the dynamic range and minimizes output power temperature error.
SPECIFICATIONS
Frequency range:
G4-202 2.0–8.15 GHz
G4-204 8.15–17.85 GHz
G4-207 17.44–25.86 GHz
G4-208 25.86–37.5 GHz
Frequency setting error: ±0.45 %
Output power:
2–8.15 GHz 80 mW
8.15–12.05 GHz 60 mW
17.44–37.5 GHz 40 mW
25.86–37.5 GHz 20 mW
Regulated output power range: 30 dB (G4-202, G4-204), 28 dB (G4-207, G4-208)
Output power setting error: not more than ±1.5 dB
Relative harmonic and subharmonic content, not more than:
–25 dB (2f, 3f) G4-202, G4-204
–30 dB (3/2f, 2f) G4-207, G4-208
Power level from the auxiliary output (regulation range 20 dB): not less than 1 mW
Frequency modulation:
range: 0.05–100 kHz
frequency deviation: 25 MHz, 50 MHz (17.44–37.5 GHz)
Amplitude modulation*:
range: 0.05–5 kHz
depth: 0–50 %
Pulse modulation:
pulse repetition rate: 0.05–200 kHz
pulse width: 0.1 ms–10.0 ms
on/off ratio: not less than 60 dB
Sweep:
frequency range: 10 MHz up to the full frequency range
time: 20, 80 ms, 1 s
GENERAL
Operating temperature range: –10–+50 ° C
Relative humidity: up to 98 % at 25 °C
Power: 220±22 V, 50±0.5 Hz; 115±5.75 V, 400±10 Hz
Power consumption: not more than 60 VA
Dimensions:
G4-202, G4-204 240х120х300 mm
G4-207, G4-208 240х120х390 mm
Weight:
G4-202, G4-204 7.5 kg
G4-207, G4-208 9.5 kg
New components developed by the IEM KVARZ allow in a short period of time to manufacture the generators with improved specifications in accordance with customer requirements:
Frequency range extension:
37.5–53 GHz, Pout ~3 mW
53–78 GHz, Pout ~2 mW
78–118 GHz, Pout ~1 mW
Output power increase up to 40–60 W in the frequency range up to 37.5 GHz
Output signal spectrum spurious component suppression up to 40 dBn in 37.5 GHz range.
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* no AM in 17.44–37.5 GHz