Specification—492/492P Service Vol. I (SN B030000 & up)
Table 1-4 (cont)
Characteristic
Performance Requirement
Supplemental Information
External High Performance
Waveguide Mixers
Band
6
18.0—26 GHz
±3.0 dB
±6.0 dB
TEKTRONIX High Performance
Waveguide Mixers.
Band 7
26—40.0 GHz
±3.0 dB
±6.0 dB
Band
8
40—60 GHz
±3.0 dB
±6.0 dB
Band 9
60—90 GHz
Typically ±3.0 dB
Band 10
90—140 GHz
Typically ±3.0 dB
Band 11
140—220 GHz
Dependent on external mixer.
SENSITIVITY
The following tabulation shows the equivalent maximum input noise for each resolution bandwidth, with the internal
mixer for frequency bands 1—5 (100 kHz— 18 GHz), and TEKTRONIX High Performance Waveguide Mixers for bands
6
— 10
(18 GHz—140 GHz). The NARROW video filter is activated, for narrow resolutions (1 kHz or less); WIDE filter for wide
resolution.
Frequency/Band
Equivalent Input Noise for Resolutin Bandwidths
1 kHz
10 kHz
100 kHz
1 MHz
50 kHz—7.1 GHz (Bands 1—3)
— 110 dBm
-1 0 0 dBm
-9 0 dBm
— 80 dBm
5.4— 12.0 GHz (Band 4)
—95 dBm
—85 dBm
-7 5 dBm
— 65 dBm
12.0— 18.0 GHz (Band 4)
—90 dBm
—80 dBm
- 7 0 dBm
— 60 dbm
15.0—21.0 GHz (Band 5)
-8 5 dBm
- 7 5 dBm
—65 dBm
—55 dBm
18.0—26.5 GHz (Band
6
)a
-1 0 0 dBm
—90 dBm
— 80 dBm
- 7 0 dBm
26.5—40.0 GHz (Band 7)a
—95 dBm
—85 dBm
—75 dBm
— 65 dBm
40.0—60.0 GHz (Band
8
)a
-9 5 dBm
—85 dBm
— 75 dBm
—65 dBm
60.0—90.0 GHz (Band 9)a
Typically —95 dBm at 60 GHz degrading to —85 dBm at 90 GHz
90.0— 140 GHz (Band 10)
Typically - 8 5 dBm at 90 GHz degrading to -7 5 dBm at 140 GHz
140—220 GHz (Band 11)
External Mixer Dependent
■TEKTRONIX High Performance Waveguide Mixers.
1-16
REV JUN 1982
