Aeroflex 2023A - Page 29

GENERAL INFORMATION
1-9
Option 3: High power
If fast pulse modulation is needed see Option 11.
Specification as standard instrument with the following exceptions:
RF output range: −140 dBm to +25 dBm (output power above +19 dBm is uncalibrated for carrier
frequencies above 1.2 GHz and above +14 dBm above 2.4 GHz).
Maximum output is reduced by 5 dB when pulse modulation is selected and/or by up to
6 dB dependent upon set AM depth.
RF level accuracy (above
+7 dBm):
Over a temperature range 17°C to 27°C (63 to 51°F):
±1 dB 9 kHz to 1.2 GHz <23 dBm
±1.5 dB 9 kHz to 1.2 GHz <25 dBm
±2 dB 1.2 GHz to 2.51 GHz.
Temperature coefficient <±0.02 dB/°C to 1.2 GHz, and <±0.03 dB/°C to 2.51 GHz.
Harmonics: Typically better than –25 dBc for levels 6 dB below the maximum specified output.
Amplitude modulation:
(for RF levels from +7 dBm to
+18 dBm)
Carrier frequency <500 MHz
Standard depth and distortion spec applies
Carrier frequency 500 MHz to 2 GHz
Accuracy:
(from 17°C to 27°C ambient,
temperature coefficient
<±0.02%/°C)
±7.5% of set depth at 1 kHz mod rate
Distortion:
(at 1 kHz mod rate)
<5% up to 80% depth
<2.5% up to 30% depth
Option 4: High stability frequency standard
Replaces the internal TCXO with a high stability OCXO. Specification as standard instrument
with the following exceptions:
Aging rate: Less than ±2.5 in 10
7
per year, less than ±5 in 10
9
per day after 2 months’ continuous
use.
Stability: Better than ±5 in 10
8
over the temperature range 0 to 50°C (32 to 122°F).
Warm-up time: Within 2 in 10
7
of final frequency 10 minutes after switch on at a temperature of 20°C
(68°F).
Option 5: Rear panel connectors
RF output, modulation input and LF output connectors are transferred to the rear panel. The signal
generator’s specification is unaltered.
Option 7: See Annex A.
Option 9: Internal pulse generator
Option 9 adds the ability for the instrument to internally generate pulsed waveforms that modulate
the RF output. Internally-generated pulse waveforms can be free-running, triggered or delay-
triggered.
Modes:
Free-run, externally-triggered, delayed.
Pulse period: 100 ns to 1 s, resolution 50 ns.
Pulse width: 50 ns to 1 s, resolution 50 ns.
Pulse delay: 0 to 1 s, resolution 50 ns.
Active trigger edge: Positive.
External trigger delay: <250 ns.
Jitter: <2 ns.