Advertisement
Model 11694A
13. Original Packaging. Containers and materials
identical to those used in factory packaging are
available through Hewlett-Packard offices. If the
transformer 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 corre-
spondence, refer to the transformer by model num-
ber and full serial number.
14. OPERATION
15. Environment
16. The operating environment should be within
the following limitations:
a.
Temperature: 0°C to +55C
b.
Humidity:
<95% relative
c.
Altitude: <25,000 feet
17. Operating Instructions
Do not exceed maximum input power of
0.5 watts or damage to the transformer
windings may occur.
Page 3
18. The matching transformer is used to match
a 50-0hm coaxial input or output to a 7 5-0hm
coaxial input or output. Be sure to observe
maximum power limits at the input of the matching
transformer.
19. PERFORMANCE TESTS
20. VSWR. To check that the matching transfor-
mer meets its VSWR specification listed in Table 1,
use any test system that has a reflection coefficient
(p) accuracy better than 0.015. (Reflection coef-
ficient
p
to a VSWR of 1.2:1 is 0.09 and 1.3:1 is
0.13.) Terminate the unused port with an accurate
50-0hm or 7 5-0hm termination as appropriate.
21. ADJUSTMENTS
22. No electrical or mechanical adjustments are
required.
23. REPLACEABLE PARTS
24. No parts are replaceable on the Model 11694A
matching transformer.
25. REPAIR
26. No repair is recommended on the Model
11694A matching transformer.
Advertisement
