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[RF] (HP-IB:
RF1 turns on RF output RFO turns off RF output) turns the RF output on or off. Press
[RF], which will cause "-OFF-" to appear in the POWER dBm display and will cause the output power
to be turned off (output <-100 dBm). Press [RF] again to turn on the RF output, restoring the last-
entered power output.
[SHIFT] [RF] has the same effect on the HP 8340B/41B as [SHIFT] [INT],
RF OUTPUT CONNECTOR. The HP 8340B is equipped with a precision 3.5 male connector. The HP
8341B uses a standard Type-N female connector. The output impedance, SWR, and other electrical
characteristics are listed in the specification tables in Section I. When making connections, carefully
align the center conductor elements, then rotate the knurled barrel while the mating component
remains still. Tighten until a firm contact is obtained.
CARE OF APC AND PRECISION 3.5 CONNECTORS (HP 8340B only). Considerable care must be
used when working with APC-3.5 connectors:
Do not deform the connector by excessive tightening
force, and do not allow the connector to get corroded, scratched, or dirty. If cleaning is necessary, use
a firm, lintless brush only; do not use any cleaning solvents, since solvents can chemically damage the
plastic bead that supports the center conductor. If this connector is mechanically degraded in any
way, high frequency losses will occur.
Figure 3-17.
RF Keys/Output (3 of 3)
HP 8340B/41B
Operating Information
3-41
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