
Caution
During
the
test
of limiting specifications, do not apply more
than
lOW
average
power to
the
limiter. There should be <1.3 Vnc with no
RF
applied,
and
0.0
Vdc
when
RF
is applied. Permanent damage to
the
diodes could result from
exceeding these levels.
Limiting
The power-limiting performance can be compared against
the
typical performance shown in
Figure
1-3
by using
the
same
test
system
that
is used to check insertion loss. Incident power
should
be
slowly increased from below 1
mW
to
10
W while
the
output
power is observed.
Storage
and Shipment
Environment
The limiter should
be
stored in a clean, dry environment. The following environmental
limitations apply to both shipping and storage:
• Temperature:
-40°C
to +75°C
• Humidity: <95% relative
• Altitude: <7620 meters (25,000 feet)
Original Packaging
Containers and materials identical to those used in factory packaging are available through
HP Sales and Service
Offices.
If
the
instrument is being returned to Hewlett-Packard for
servicing, attach a tag indicating
the
type of service required,
return
address, model number,
and full serial number.
Also,
mark
the
container
FRAGILE
to assure careful handling. In any
correspondence, refer to
the
instrument by model number and full serial number.
Mating Connectors
Mating connectors used with
the
limiter should be Type N connectors
that
are compatible with
US
MIL-C-39012.
HP
11867A
RF
Limiter
1·5
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