HP 5355A - Page 27

Model 5355A
Operation and Programming
CONNECTORS
FUSE
BNC connector for the low range (0.4—1.6 GHz)
INPUT
select
signal input. Active when the
CHANGE
SIGN
key is
active (illuminated) or when the RF Head is not
connected to the RF HEAD INPUT.
f8= H£AO
Multipin connector for the high range
(1.5—40 GHz) signal input. Active when the
INPUT
SELECT
key is not illuminated. This connector
CHANGE
SIGN
mates with the plug on the cable of the
5356A/B/C RF Head.
Figure 3-1. Front Pane! Controls, Connectors and Indicators (Continued)
3-9. Operating Modes
3-10. Operating modes are selected by the front panel pushbutton keys. The following modes
may be selected:
a. CW
b. Pulsed RF
c. Manual
d. Offset
3-11. CW Mode
3-12. The automatic mode of operation for CW signals is initiated by applying power to the
instrument. Input CW signals are acquired, measured and displayed automatically. The
illuminated indicator in the CW key shows the operator that this mode of operation is in effect.
If other key indicators are illuminated, the 5355A is operating in the mode indicated.
3-13. Pulsed RF Mode
3-14. The Pulsed RF mode (for reception of pulsed RF signals) is initiated by pressing Qjj ^
on the front panel. To operate in this mode, the GATE OUT connector on the rear panel of the
5355A must be connected to the GATE CONTROL INPUT connector on the rear panel of the
5345A. Input pulsed RF signals are acquired, measured, and displayed automatically. The
illuminated indicator in the PULSE key shows the operator that this mode of operation is in
effect. Measurement of a pulsed RF signal is described in Table 3-2.
3-5