Filter
Top Products
8-6 MULTIPLE SOURCE
CONTROL
The Multiple Source Control mode permits independent control of the
37xxxE source, receiver, and an external Anritsu synthesizer (67xxB,
68xxxB, MG369xx), without the need of an external controller (Fig
-
ure 8-28).
Operation in this mode requires Option 15. Removing the reference
loop lets you isolate the receiver from the source. This permits testing
of frequency converters such as mixers.
The software lets the frequency ranges and output powers of the two
sources be specified. A frequency sweep can comprise up to five sepa
-
rate bands, each with independent source and receiver settings for
convenient testing of frequency translation devices such as mixers. Up
to five sub-bands (harmonics) can be tested in one sweep.
Control Formula Multiple Source control is specified as a displayed frequency range
partitioned into from one-to-five consecutive bands. For each band
Source 1, Source 2, and receiver frequencies may be interdependently
specified per the formula:
Source 1 = (1/1) * (F+0.000000000 GHz)
Source 2 = (1/1) * (F+0.000000000 GHz)
Receiver = (1/1) * (F+0.000000000 GHz)
where, the multiplier, divisor and frequency offset can be entered spe
-
cific to the DUT.
37xxxE OM 8-29
MEASUREMENTS MULTIPLE SOURCE CONTROL
.
-
Measurement
Enhancement
Channels
Display
1.
2. Set up equipment as shown.
3. Normalize the data trace with the standard mixer installed.
4. Subsequent mixers can be tested for magnitude
or phase match with respect to the "Standard Mixer."
Remove a1 loop on the front panel (Opt. 15 only).
Mixer 1
Mixer 2
Power
Divider
Power
Divider
RF
RF
LO
LO
I.F.
Standard
Mixer.
Phase-Lock
Mixer.
To
a1 In
(Opt.
15).
I.F.
Figure 8-28. Test Setup for Mixer Measurement Using Multiple Source Control Operation