Filter
Top Products
15. External Mixer Amplitude Adjustment (Non-Option 327)
16. YIG-Tuned Filter/Mixer (RYTHM) Adjustment
Assembly
Adjusted
Al4 frequency control assembly
Related
Performance
Tests
Image, Multiple, and Out-of-Band Responses
Second Harmonic Distortion
Frequency Response
Description
The slope and offset of the A10 RYTHM tuning voltage are set by DACs on the Al4
frequency control assembly. The offset DAC value is optimized at a low frequency and the
slope DAC value is optimized at a high frequency.
Automated
Procedure
Available
The YIG-Tuned Filter/Mixer adjustment is included in the automated HP 85623 “Front
End Cal” adjustment, which is described in Chapter 3,
“Frequency Response Adjustment
Software.”
BNC CABLE
H
‘EX
‘R PROT
JUMPE
THIS
J
ADAPTER
II
OUTPUT
Al4 FREP CONTROL
Al5 RF
/WR
ENA
:R IN
AREA
Sk121
Figure 2-25. RYTHM Adjustment Setup
Equipment
Synthesized sweeper
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP
8340A/B
Adapters
Type N (m) to APC 3.5 (f) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1250-1744
Type APC 3.5 (f) to APC 3.5 (f) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5061-5311
Cables
APC 3.5, 91 cm (36 in)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8120-4921
2-60 Adjustment Procedures