
Chapter 3 67
Operation
Using an 71000 Series Spectrum Analyzer with an 70907B, 70909A, or 70910A
Operation
Preselector Peaking
1. Place the active marker on the desired signal to be peaked.
Hint: To complete the preselector-peaking routine more quickly, place the signal at
center screen and reduce the frequency span until the sweep time is approximately
100 ms.
2. Peak the desired signal by using the following key sequence.
State
pre-select
PRESEL PEAK
General Descriptions of 71000 Series Spectrum Analyzer
External-Mixing Functions
ext mixer allows access to the following softkey functions that control the
measurement range when an external mixer extends the
spectrum-analyzer frequency range. The
ext mixer softkey can be
found under the
State firmkey.
fulband KAQUVE PRESEL PEAK
fulband WFDGYJ PRESEL DAC
CONV LOSS
fulband KAQUVE
and
fulband WFDGYJ
specify the frequency range for measurements made with external
mixers. Twelve frequency bands are available. Table 3-2. lists the
start and stop frequencies of each band and also shows which
local-oscillator harmonic (N) is used for the mixing process. Once a
band is selected, the frequency range is locked and the spectrum
analyzer tunes with the local-oscillator harmonic for that band only.
(Selecting a new band presets the instrument in that band.)
Table 3-2. External Mixing Bands and Associated Mixing Harmonics
Band Harmonic Number (N) Frequency Range (GHz)
K6
− 18.0 to 26.5
A 8+ 26.5 to 40.0
Q 10+ 33.0 to 50.0
U 10+ 40.0 to 60.0
V 14+ 50.0 to 75.0
E 16+ 60.0 to 90.0
W 18+ 75.0 to 110.0
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