Rohde & Schwarz SME02 - Options SM-B3, SM-B8 and SM-B9 - Pulse Modulator 1.5, 3 and 6 Ghz; Option SM-B4 - Pulse Generator; Option SM-B5 - FM;PM Modulator

Fitting the Options SME
1038.6002.02 1.7 E-13
1.3.5 Options SM-B3, SM-B8 and SM-B9 - Pulse Modulator 1.5, 3 and 6 GHz
When fitting this option, the RF characteristics of the instrument change to such an extent that the
output level has to be calibrated. This requires calibrated test instruments , a control processor and
service kit SM-Z2. For this reason, fitting should be carried out at an authorized R&S service shop.
Fitting is described in the service manual (stock number 1039.1856.24).
1.3.6 Option SM-B4 - Pulse Generator
The pulse generator is fitted within module A4, pulse modulator.
Fitting the option
À Open module A4.
À Fasten the pulse generator board by means of 4 screws.
À Plug in connectors W10 and W11.
À Screw on cover again.
À Establish the following RF connections at the pulse generator:
Cable From To Signal
W43 A4-X43 Rear panel VIDEO
W44 A4-X44 Rear panel SYNC
À Cable 50-MHz reference, cf. Section 1.3.13
Calibrating pulse generator
À Call menu UTILITIES/ CALIB /PULSE GEN
À Select action CALIBRATE
➤
and activate using the [SELECT] key
À The start and end of the calibration are displayed. Calibration only
takes a few seconds.
Note: The calibration data are stored in the RAM, thus the calibration
can be repeated as often as required.
1.3.7 Option SM-B5 - FM/PM Modulator
The FM/PM modulator is fitted at slot A6.
Fitting the option
À Withdraw cable W89 from X99 of the summing loop and use again.
À Establish the following connections:
Cable From To Signal
W89 A8-X89 A6-X67 FDSYN
W65 A6-X65 A7-X71 REF100
W67 A6-X69 A9-X99 FDFM