Ceyear 4992A, User Manual

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Chapter I Overview
4
Section 2 Main Technical Indicators
1.
RF source
This instrument includes double independent RF signal sources, which can be separately
selected for independent output. Both sources can be combined inside this instrument for output.

Frequency characteristics
Frequency range: 2MHz-1000MHz (Available to 500 KHZ) (Source 1) (1 GHz option
default)
2MHz
～
2700MHz (Available to 500 KHZ) (Source 1) (2.7 GHz
option)
2MHz-400MHz (Source 2, ANT port output)
Frequency resolution: 1Hz

Amplitude characteristics
Output power range:
1 GHz option: -5dBm to -65dBm (SWR, Source 1)
-5dBm to -100dBm (ANT, Source 1)
-50dBm to -125dBm (T/R, Source 1)
0dBm to -100dBm (ANT, Source 2)
2.7 GHz option: 5dBm
～
-65dBm
（
SWR
，
Source 1
，
2MHz
～
2.2GHz
）
-10dBm
～
-65dBm
（
SWR
，
Source 1
，
2.2GHz
～
2.7GHz
）
-5dBm
～
-100dBm
（
ANT
，
Source 1
，
2MHz
～
1.8GHz
）
-15dBm
～
-100dBm
（
ANT
，
Source 1
，
1.8GHz
～
2.7GHz
）
-50dBm
～
-120dBm
（
T/R
，
Source 1, 2MHz
～
2.2GHz
）
-55dBm
～
-125dBm
（
T/R
，
Source 1
，
2.2GHz
～
2.7GHz
）
-5dBm
～
-100dBm
（
ANT
，
Source 2
）
Power resolution: 0.1dB
Power accuracy:

2dB (ANT and T/R port: ≥-100dBm; SWR port: ≥-55dBm)

Spectrum purity
SSB phase noise: ≤-95dBc/Hz@20kHz (1 GHz option default)
SSB phase noise: ≤-80dBc/Hz@20kHz (2.7 GHz option)
Parasitic harmonics: ≤-30dBc
Parasitic non-harmonics: ≤-35dBc (frequency deviation: more than 20kHz) (1 GHz
option)
≤-30dBc (frequency deviation: more than 20kHz) (2.7 GHz
option, 2MHz~2GHz)
≤-20dBc (frequency deviation: more than 20kHz) (2.7 GHz
option, 2GHz~2.7GHz)

Internal AM characteristics(Audio 1 and Audio 2)
Modulation frequency: 30Hz-5kHz (acceptable setting: 20Hz-20kHz)
Amplitude range: 0-100%
Modulation accuracy:

(5%

modulation depth+2%) (150Hz-5kHz modulation rate,
10%-90% modulation depth)
Total harmonic distortion: 2% (20%-80% modulation, 1kHz modulation rate,
300Hz~3kHz BP filter)