Aeroflex 2023A - Performance Data

GENERAL INFORMATION
1-5
Performance data
Carrier frequency
Range: 9 kHz to 1.2 GHz (2023A).
9 kHz to 2.05 GHz (2023B).
9 kHz to 2.51 GHz (2025).
Resolution: 1 Hz.
Accuracy: Equal to the frequency standard accuracy.
Phase incrementing:
The carrier phase can be advanced or retarded in steps as low as 0.09
° using the rotary
control.
RF output
Range:
−140 dBm to +13 dBm.
When AM is selected the maximum RF output level decreases linearly with increasing
AM depth to +7 dBm at 99.9% depth.
Resolution: 0.1 dB.
RF level units
Units may be set to μV, mV, EMF or PD; dB relative to 1 μV, 1 mV, EMF or PD; or dBm.
Conversion between dB and linear units may be achieved by pressing the appropriate
units key (dB or V, mV, μV). The output level can be normalized for 75 Ω operation with
an impedance converter.
Accuracy:
Attenuator hold: Selection of Attenuator Hold provides for uncalibrated level reduction of at least 10 dB
without the mechanical attenuator operating.
VSWR:
For output levels less than −5 dBm, output VSWR is:
less than 1.3:1 for carrier frequencies up to 1.2 GHz
less than 1.5:1 for carrier frequencies up to 2.51 GHz.
Output VSWR is less than 1.5:1 at all carrier frequencies for output levels greater than
−5 dBm.
RF output connector:
50 Ω, type-N connector to MIL 390123D.
Output protection:
Protected against the application of reverse power up to 50 W from 50 Ω or 25 W from a
source VSWR of 5:1. Protection circuit can be reset from the front panel or via the
GPIB/RS-232 interfaces.
Spectral purity
At RF levels up to +7 dBm:
Harmonics :
Typically better than −30 dBc for RF levels up to +7 dBm.
Typically better than −25 dBc for RF levels up to +13 dBm.
Sub- and non-harmonics (for
offsets >3 kHz):
Better than −70 dBc up to 1 GHz.
Better than −64 dBc between 1 and 2.05 GHz.
Better than −60 dBc above 2.05 GHz.
Residual FM (FM off): Less than 4.5 Hz RMS deviation in a 300 Hz to 3.4 kHz unweighted bandwidth at 1 GHz.
SSB phase noise:
Better than −124 dBc/Hz at 20 kHz offset from a 470 MHz carrier.
Typically −121 dBc/Hz at 20 kHz offset from a 1 GHz carrier.
Carrier leakage:
Less than 0.5 μV at the carrier frequency into a two-turn 25 mm diameter loop, 25 mm
from the surface of the signal generator.
ΦM on AM:
Typically 0.1 radians at 30% depth at 470 MHz.
Accuracy over temperature range 17
°C to 27°C
9 kHz to1.2 GHz 1.2 GHz to 2.05 GHz 2.05 GHz to 2.51 GHz
>−127 dBm
±0.8 dB ±1.4 dB ±1.6 dB
>−100 dBm
±0.8 dB ±1.2 dB ±1.6 dB
Temperature
coeff. dB/
°C
<±0.02 dB <±0.03 dB <±0.03 dB