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J\,Jod~l.
8730A'& "B Series
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Table 2.PerfofrY1:ance Check Procedure (3 o(3) ,
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PIN M()d Serial No._·_ _.........
_
TEST
R~SULTS
(see Note
'1) ,
.
"
"
, 'I,
Date
......-__ ' (
SWR
ata frequency of..;...._._ _
I
,PROCEDURE
:
a.With +,5 Vdc (referenced to PIN Modu-
lator ground)' applied to BIAS input measure
SWR at each end of the specifiedPlbl Modula-
tor frequency range and optionally at any other
points 'of interest.
b. If SWR is excessive, remove PIN Modulator,
, from setup and clean R,Fconne'ctors of any .dirt
or other foreign matter. Repeat SWR measure-
.
,
ments,
'I,
,
)
5. ,SWR. When forward-biased, less than
1.8:1-8731A&8732A'
2.0~1
-
8~3iB
'& 8732B '
\ 2.0:i.-8733A & 8734A
2.0: 1 - 8735A
2~2:1
.: 8733B & 8734B
, 2.2: 1 - 8735B .
PROCEDURE
" T E S T RESTILTS (see Note 1)
a. With a de 'voltage of about -0.7 volts and
'rated current (stamped on
label·--·
undersidejap-
,Date
....;....
_____
,plied to BIAS input, measureSwlt at ends of ' '
)
specified frequency
range.
'
PIN Mod Serial NO.
.r---
_
b. If SWR is excessive, clean' RF input and out-
SWR
at a frequency of
_
put connectors and recheck.
, '
I'"
.Measured forward bias
current_~
_
,
6. MINIMUM INSERTION LOSS (dB). ,When reverse-biased, less than:
I
,
1.5 dB - 8731A'
,
2.0 dB - 8731B, 8732A, 8733A
I
,3.0 dB - 8733B
3.5 dB & 4.0 dB - 8732B (See Note 3)
4.0
dB 7- 8734A & '8735A
5.'0
aa -
8734B
s
8735B
"
,
PROCEDURE
a. With +5 volts. de applied to BIAS input,
"measure insertion loss at high end of frequency
band and all otherjpointsof interest.
TEST'RESULTS (see Note 1)
Date
--:-_ _
.PIN Mod Serial No..
-------'-~---
'1
"Insertion Loss
at,
a
frequency of
_
NOTES
,
I
A .\ ' , . '
:.'
,4. ,The leakage current, although not an actual speclfl-
cation, is the only method of checking diodes for
leakage and general condition",
5. To check riseandfaU times aSamplJng Osclllosope
.' suchas
theHf'
Modell8llA/1430C should be used.
6.: Typical Forward Bias Input Resistance
may
be calcu-
lated by applying 3 or,4milliammeters of dc current
at a negative potential, measuring the negative poten-
tia~. For ,"A" model PIN Modulators, it is approximately
300 ohms
±lOO
ohms; for "B" model PIN Modulators,
,it is approximately 100 ohms
±
50 ohms,
1. The test resultscolumn-provided opposite each test
.
proc~~ure
is not provided
'to
allow
a
complete
test "
,
.
,
'
' .
I
record but rather toallowtest result comparisons.
'for aspeelftc
PIl\JM~dulator
measured under' the
same conditions at, diffe~nt time
tntervals,
. ,
"
2.. WhenrevelSe-biased~ the SWR of the 873213 should
be less than
1~6:
i',eor
R~
frequencies
betwee~l 1.~
and
4.0 GHz and less than 2.0:1
betwe~n4.0
and
4~5
GHz.
,
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.
,
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3. Minimum in~l1ion loss.for lh~ 8732B\is less than • '.
.,
3.5 dB for RF; frequenCies between-l.8 and ,4.0 GHz,
I
.
and less·tban'4.0 d:Bbctween,4.0'ahd4.5
GHz~
,,"
,
L-
....._ _
~
......
..;..._~
~ - ' - - - - - ~ - - - - - - - - - - - ~
. .....
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- - L - . -
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- -
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-------,-----........------..
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