11
Frequency
Flatness (dB)
40 MHz – 13.5 GHz
±1.5
13.5 GHz – 20 GHz
±2.0
20 GHz – 40 GHz
±3.0
40 GHz – 65 GHz
±5.0
Power Flatness
Frequency
Typical
(at default power)
40 MHz – 20 GHz
<–40 dBc
20 GHz – 40 GHz
<–20 dBc
40 GHz – 65 GHz
<–20 dBc
Frequency
Magnitude (dB)
Phase (degrees)
40 MHz – 20 GHz
<0.04
<0.5
20 GHz – 40 GHz
<0.08
<1.0
40 GHz – 65 GHz
<0.25
<2.5
Model
Rated Power (dBm)
Minimum Power (dBm)
Resolution (dB)
37247D
5
–20
0.05
37269D
–7
–27
0.05
37277D
–7
–27
0.05
37297D
–7
–19
0.05
37347D
5
–90
0.05
37369D
–7
–97
0.05
37377D
–7
–87
0.05
37397D
–7
–79
0.05
Power Range
Signal Source Specifications
Resolution:
1 Hz
Frequency Stability
:
Temperature: < 5x10
–9
over 0° to 55°C range
Aging: <1 x 10
–9
/day
Source Power Level:
The source power (dBm) may be set from the
front panel menu or via GPIB. In addition, on 37300D models, the
port 1 power may be attenuated in 10 dB steps, using the internal
70 dB (60 dB for 37377D and 37397D) step attenuator. Similarly,
high input signals into port 2, not exceeding 1 watt, can be
attenuated up to 40 dB, using the internal port 2 step attenuator.
Sweep Type:
Linear, CW, Marker, or N-Discrete point sweep
Phase Noise:
>60 dBc/Hz at 10 kHz offset and 20 GHz center frequency
Spurious Response (Harmonics)
Spurious Response (Non-harmonics):
<–35 dBc at maximum rated power
Receiver Noise Floor and System Dynamic Range into Direct Access Ports (Option 15 only)
*RMS values measured at 10 Hz IF BW with NO averaging applied)
High Level Noise (pk – pk typical at 1 kHz I.F. BW)
Model
Frequency
(GHz)
Typical Noise Floor*
(dBm)
Power into b1 or b2 Ports at
0.2 dB Compression (dBm)
Typical System
Dynamic Range (dB)
372XXD
0.04
–130
–12
>118
2
–123
–10
>113
20
–121
–7
>114
40
–111
–8
>103
50
–102
–3
>99
65
–92
–3
>89
373XXD
0.04
–130
–12
>118
2
–123
–9
>114
20
–120
–6
>114
40
–110
–6
>104
50
–100
0
>100
65
–90
0
>90