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Spectrum Analyser Subsystem (optional)
Frequency
Frequency Range
1 Hz to 4.4 GHz, Standard ; 100 kHz to 4.4 GHz AC-
coupled
Span Modes
(Center Fre Span) or (Start + Stop Frequencies)
Maximum Span
4.4 GHz
Minimum Span
10 Hz or Zero Span
Internal reference accuracy
± 1 ppm (improved with external reference)
Readout Accuracy
reference error ±1 sample
Marker Accuracy
reference error ±1 sample
Resolution Bandwidth
0.1 Hz to 250 KHz and 5 MHz
Spectral Purity
Residual FM, 3KHz Audio LPF, 15 KHz IF BW: [0.1 Hz + 4 Hz
/ GHz] typical RMS FM (e.g. 2 GHz RF would have 8.1 Hz
RMS FM). Increasing IF BW increases residual FM
Amplitude
Range, 1dB Gain Compression
1dB Gain Compression to Displayed Average Noise Level
(DANL)
(attenuator set to 15dB, preamp off) +16dBm Typical, 1Hz
to 150MHz (100 kHz to 150 MHz, Option 3) +19dBm
Typical, 150MHz to 4.4GHz
Displayed Average Noise Level
0dB input attenuation, 1Hz RBW
Frequency
RF Preamp Off
RF Preamp On
10Hz
-124 dBm
NA
100Hz to 10KHz
-130 dBm
NA
10KHz to 500KHz
-142 dBm
NA
500KHz to 10MHz
-142 dBm
-153 dBm
10MHz to
100MHz
-148 dBm
-161 dBm
100MHz to 1GHz
-144 dBm
-158 dBm
1GHz to 2.6GHz
-139 dBm
-151 dBm
2.6GHz to 3.3GHz
-135 dBm
-151 dBm
3.3GHz to 4.4GHz
-128 dBm
-134 dBm
Absolute Accuracy
(Reference level ≤0 dBm)
± 1.5 dB
Absolute Accuracy (0 dBm <
Reference level ≤ 10 dBm)
± 2.0 dB
Relative Accuracy
(Reference level ≤0 dBm)
±0.25 dB
Maximum Safe Input Level
(preamp off, 15 dB atten)
+20dBm
DC Volts
< ±0.2V absolute maximum (±16VDC, option 3)
Residual Responses
(Input terminated, ≤100 KHz span,
0 dB atten, preamp on)
<-80 dBm 1
Note 1: Known residual responses at multiples of 10
MHz < -80 dBm typical
4T2-Portable Manual EN.odt / Technical specifications
Page 17