Specification—492/492P Service Vol. I (SN B030000 & up)
Table 1-5 (cont)
Characteristic Performance Requirement
Supplemental Information
Noise Sidebands
At least —75 dBc at 30 times the resolution
bandwidth offset (—70 dBc for 100 Hz reso
lution bandwidth) for fundamental mixing.
Residual FM (short term)
after 2 hour warm up
<(48 + 2n) Hz, peak-to-peak for a
period of 20 ms. n is the 1 st LO
harmonic number used in the 1 st mixer
conversion, and related to the selected
frequency range (band).
No video filter.
Frequency Drift, at a fixed
frequency:
B039999 and below and
after a 2 hour warmup.
<25 kHz/hour, fundamental mixing.
B040000 and up and
after a 30 minute
warmup;
<15 kHz/10 minutes, fundamental
mixing.
<5 kHz/10 minutes, typical.
after a 1 hour warmup.
<3 kHz/10 minutes, fundamental mix
ing.
<1 kHz/10 minutes, typical.
Sensitivity (100 Hz)
8 dB better than 1 kHz sensitivity.
OPTION 08
Deletes External Mixer capability. Standard accessories do not include the Diplexer. Frequency range of the instrument
is 50 kHz to 21 GHz.
OPTION 20
Includes: General Purpose Waveguide Mixers; 12.5 to 40 GHz as listed below. Tektronix Part No. 016-0640-00.
Sensitivity: Equivalent Input Noise
Frequency Range
Part Number
@ 1 kHz Bandwidth (Typical)
12.4—18 GHz
119-0097-00
— 75 dBm
18.0—26.5 GHz
119-0098-00
— 70 dBm
25.6—40 GHz
119-0099-00
— 60 dBm
Cable: TNC-to-SMA male connectors, 012-0748-00
1-18
REVJUN 1982
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