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HEWLETT
PACKARD
OPERATING AND SERVICE MANUAL
MODEL
3048A
OPTION
AM
DETECTOR
K 2 1
F I L T E R
How To Use This Manual
This Manual should be used in conjunction w i t h the 3048A Operating
Manual, HP Part Number 03048-90001 ( p r i n t e d March 1988), and the
3048A Reference Manual, HP Part Number 03048-90002 ( p r i n t e d June
1988).
Applicable Serial Numbers
This Manual M o d i f i c a t i o n Insert applies to instruments with s e r i a l
number prefixes greater that or equal to 2820A.
Updates t o t h i s Manual Insert
P e r i o d i c a l l y , changes are made to t h i s Manual Insert to c o r r e c t
errors in the o r i g i n a l p r i n t i n g and to include Option improvements.
Corrections are indicated by a mark at the right-hand edge of the
modified t e s t . The mark used is keyed to the date the c o r r e c t i o n s
are added (found on t h i s cover page below the issue d a t e ) .
Manual Modification Inset
HP Part Number 03048-92035
Issued November 1988
Updated June 1989
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
m
3048A Option K21
HEWLETT
PACKARD
03048-92035
Page 2 of 21
SECTION I. GENERAL INFORMATION
1-1.
INTRODUCTION
This manual contains information required to install,
operate, and service the Hewlett-Packard Model 3048A
Option K21 AM Detector Filter, an optional accessory for
the HP 3048A Phase Noise Measurement System.
The AM Detector Filter Operating and Service Manual has
five sections. The subjects addressed are:
SECTION
SECTION
SECTION
SECTION
SECTION
1-2.
I
II
III
IV
V
GENERAL INFORMATION
OPERATION
PERFORMANCE TESTS
REPLACEABLE PARTS
SERVICE
SPECIFICATIONS
Instrument specifications are listed in Table 1-1.
These specifications are the performance standards or
limits against which the instrument may be tested.
Table 1-1.
Specifications
Characteristics
Performance Limits
MAXIMUM INPUT DC
+/-5 V
FLATNESS
+/-0.5 dB
Conditions
1 Hz to 40 MHz
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
m
HEWLETT
PACKARD
3048A Option K21
03048-92035
Page
3
1
1-3.
DESCRIPTION
The HP Model 3048A Option K21 AM Detector Filter is an
accessory to the HP 3048A Phase Noise Measurement
System. It contains a DC return for an AM detector,
such as the HP 33330C/D, and a DC blocking capacitor.
The insertion loss of the AM Detector Filter is
typically less than 1.5 dB. The switch on the front
cover can be set for either positive or negative AM
detector polarity.
1-4.
INITIAL INSPECTION
Inspect the shipping container. If the container and/or
packing material is damaged, it should be kept until the
contents of the shipment have been checked mechanically
and electrically. If there is mechanical damage or if
the instrument does not pass the performance tests,
notify the nearest Hewlett-Packard office. Keep the
damaged shipping materials (if any) for inspection by
the'carrier and a Hewlett-Packard representative.
1-5.
ACCESSORIES
The accessories supplied with the HP 3048A Opt. K21 are
listed below:
IMPEDANCE MATCHING NETWORK
CALIBRATION LOAD
CALIBRATION CABLES (2)
ADAPTOR SMA(F) TO SMC(F) (3)
ADAPTOR SMA(M) TO SMC(F) (1)
03048-62013
03048-62014
03048-62017
1250-1694
1250-1697
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
of
2]
fm
3048A
HFWI FTT
E nPM t f r r C I r f l Z
.KM P A C K A R D
SECTION I I .
2-1.
p
°Pt,0n
03048-92035
4
f 2j
OPERATION
APPLICATIONS
An AM noise measurement can be made with a HP 3048A as
described in 'AM Noise Using an HP 33330C on page 3-111
of the HP 3048A Phase Noise Measurement System Operating
Manual. The HP 3048A Opt. K21 AM Detector F i l t e r i s
substituted f o r the f i l t e r network described in Table 3-22,
and shown schematically i n Figure 3 - 3 1 .
2-2.
K21
CONNECTIONS
To setup the equipment f o r an AM Noise Measurement w i t h the
HP 3048A and AM Detector F i l t e r , r e f e r to Figure 2 - 1 . The
best r e s u l t s w i l l be obtained when s e m i - r i g i d coaxial cables
are used t o connect the components used in the measurement
and should be used whenever possible.
Ground loops can be a problem in t h i s type of
measurement. To minimize ground loops, a DC Block is
inserted between the RF source under t e s t and the AM
d e t e c t o r . The recommended DC Block i s the Narda 562
(Type-N connectors, 10 MHz to 12.4 GHz) or the Narda
4563 (SMA connectors, 500 MHz to 18 GHz). DC Blocks may
also be referred to as Audio Interface Suppressors or
Noise Suppressors. A ground loop can be suspected i f
the 60 Hz spurs have an amplitude greater than -80 dBc.
Connect the AM detector d i r e c t l y to the input connector
of the HP 3048A Opt. K21 AM Detector F i l t e r .
The output
of the AM Detector F i l t e r should be connected d i r e c t l y
t o the HP 11848A Phase Noise Interface front-panel
'NOISE INPUT' connector. However, i f a DC Block i s
inserted between the RF source under t e s t and the AM
d e t e c t o r , i t i s not necessary t o connect the output o f
the AM Detector F i l t e r t o the 'NOISE INPUT' of the HP
11848A. A short s e m i - r i g i d cable w i l l be s u f f i c i e n t to
make t h i s connection i f a DC Block is used. To connect
the AM Detector F i l t e r d i r e c t l y t o the 'NOISE INPUT',
connect a N(m) to SMA(m) adaptor (HP part number 12501994, one is supplied with the HP 3048A as part of the
Noise Floor F i x t u r e , HP part number 03048-61032) to the
HP 11848A 'NOISE INPUT'. Then connect a SMA(m) to
SMA(f) r i g h t angle adaptor (HP part number 1250-1249) to
the N(m) to SMA(m) adaptor and the HP 3048A Opt. K21 AM
Detector F i l t e r output.
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane D i v i s i o n
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
m
3048A Option K21
HEWLETT
PACKARD
03048-92035
Page 5 of 21
HP 3561A
DYNAMIC SIGNAL ANALYZER
HP I1848A
PHASE NOISE
INTERFACE
HP 33330C/D COAXIAL
CRYSTAL DETECTOR
HP 3048A OPT. K21
AM DETECTOR FILTER
FIGURE 2-1.
SETUP FOR AM NOISE MEASUREMENT WITH HP 3048A
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
tma
3048A Option K21
HEWLETT
PACKARD
SECTION III.
3-1.
03048-92035
Page 6 of 21
PERFORMANCE TESTS
INTRODUCTION
The procedures in this section test the instrument's
electrical performance using the specifications of Table
1-1 as performance standards. All tests are performed
without accessing the interior of the instrument.
NOTE
For greatest accuracy, allow the test
warm up at least one-half
hour.
3-2.
equipment
to
PERFORMANCE TEST RESULTS
Results of the performance tests may be tabulated in the
Test Results Tables at the end of each procedure. The
Test Results Tables list all of the tests specifications
and acceptable limits. The results recorded at incoming
inspection, can be used for comparison in periodic
maintenance, troubleshooting, and after repairs.
3-3.
CALIBRATION CYCLE
This instrument requires periodic verification of
performance. Depending on the use and environmental
conditions, the instrument should be checked using the
following performance test at least once every year.
3-4.
SPECIAL EQUIPMENT
A Calibration Load and Impedance Matching Network are
required to run these Performance Tests. One of each is
supplied with the HP 3048A Opt. K21 AM Detector Filter.
Service information on these devices and an easy method
to build replacements if the originals are lost or
damaged are given starting on page 16 of this manual.
3-5.
PERFORMANCE TESTING
No abbreviation of the performance testing is recommended.
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
3048A Option K21
03048-92035
Page 7 of 21
WKS% HEWLETT
\L'HM
PACKARD
PERFORMANCE TEST 1
100 KHZ TO 40 MHZ FLATNESS TEST
DESCRIPTION
This t e s t measures the f l a t n e s s of the HP 3048A Opt. K21
AM Detector F i l t e r from 100 kHz to 40 MHz w i t h a HP
3585A/B. A reference i s taken w i t h the HP 3585A/B
t r a c k i n g generator connected by a short cable to the
impedance matching network and c a l i b r a t i o n l o a d . The
c a l i b r a t i o n load output i s connected t o the 50 ohm input
of the HP 3585A/B w i t h a short cable. Once the
reference trace is measured and stored in the HP 3585A/B
memory, the reference load i s replaced w i t h the device
under t e s t (DUT). The r e s u l t s are then measured and
recorded in Table 3 - 1 .
EQUIPMENT
SPECTRUM ANALYZER
IMPEDANCE MATCHING NETWORK
CALIBRATION LOAD
CALIBRATION CABLES (2)
HP 3585A/B
03048-62013
03048-62014
03048-62017
PROCEDURE
1.
Connect the equipment up as shown in Figure 3 - 1 .
HP 3585A/B
SPECTRUM ANALYZER
HWOONG
t»>o»u-iroo
FIGURE 3-1.
SETUP FOR REFERENCE MEASUREMENT WITH HP 3585A/B
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
tvi
3048A Option K21
HEWLETT
PACKARD
03048-92035
Page 8 of 21
2.
Press the green [INSTR PRESET] key on the HP 3585A/B.
3.
Setup the HP 3585A/B as follows:
START FREQ
STOP FREQ
dB/DIV
100 kHz
40 MHz
1 dB
REFERENCE LEVEL
AUTO RANGE
-30 dBm
OFF
4.
The trace should be in the upper h a l f of the HP
3585A/B d i s p l a y . I f the trace looks good, press
the [STORE A -> B] key on the HP 3585A/B.
5.
Press the [A-B] key on the HP 3585A/B t o
a c t i v a t e the t r a c e .
6.
Turn o f f the B trace by pressing the [VIEW B]
key on the HP 3585A/B. There should only be one
trace on the HP 3585A/B CRT and i t should be a
s t r a i g h t l i n e i n the middle o f the screen.
7.
Replace the C a l i b r a t i o n Load w i t h the Opt. K21
AM Detector F i l t e r as shown in Figure 3-2.
HP 3585A/B
SPECTRUM ANALYZER
HP 030*8-62013
IMPEDANCE MATCHING
NEW**
HP 0 3 0 * 8 - 62017
CAUBOATON CAfllf
MP3048A OPT. K21
AM D 6 T E C T O R FILTER
FIGURE 3-2. SETUP FOR FLATNESS TEST WITH HP 3585A/B.
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
3048A Option K21
03048-92035
Page 9 of 21
WhatHEWLETT
mL'HM PACKARD
8.
Set the 'DETECTOR POLARITY' switch on the HP
3048A Opt. K21 AM Detector Filter to the 'POS'
position.
9.
Use the rotory knob on the HP 3585A/B to
position the cursor within 700 Hz of the
frequencies listed in Table 3-1. Record the
cursor level under the 'POS DETECTOR POLARITY'
in Table 3-1.
10. Set the 'DETECTOR POLARITY' switch to the 'NEC
position and repeat Step 9. Record the results
under 'NEG DETECTOR POLARITY' in Table 3-1.
TABLE 3-1.
FLATNESS TEST RESULTS FROM 100 kHz TO 40 MHz
MEASURED RESULTS
FREQ
(MHz)
.1
4.0
8.0
12.0
16.0
20.0
24.0
28.0
32.0
36.0
40.0
POS DETECTOR POLARITY
NEG DETECTOR POLARITY
LEVEL
(dB)
LEVEL
(dB)
LOWER
LIMIT
(dB)
UPPER
LIMIT
(dB)
-0.5
-0.5
-0.5
-0.5
-0.5
-0.5
-0.5
-0.5
-0.5
-0.5
-0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
LOWER
LIMIT
(dB)
UPPER
LIMIT
(dB)
-0.5
-0.5
-0.5
-0.5
-0.5
-0.5
-0.5
-0.5
-0.5
-0.5
-0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
What
3048A Option K21
03048-92035
Page 10 of 21
HEWLETT
MlfnM PACKARD
PERFORMANCE TEST 2
,1 HZ TO 10 HZ FLATNESS TEST
DESCRIPTION
This test measures the flatness of the HP 3048A Opt. K21
from .1 Hz to 10 Hz with a HP 3561A. A reference is
taken with the HP 3561A Noise Source (rear panel)
connected with a BNC cable to the impedance matching
network and calibration load. The calibration load
output is connected to the HP 3561A input through a 50
ohm feed-thru with a short cable. After the reference
trace is measured and stored in the HP 3561A's memory,
the reference load is replaced with the device under
test (DUT). The results are measured and recorded in
Table 3-2.
EQUIPMENT
SPECTRUM ANALYZER
IMPEDANCE MATCHING NETWORK
CALIBRATION LOAD
CALIBRATION CABLE (2)
50 OHM FEEDTHRU
BNC CABLE
BNC ADAPTOR
HP 3561A
03048-62013
03048-62014
03048-62017
HP 10100C
8120-1840
1250-0080
PROCEDURE
1. Connect the equipment as shown in Figure 3-3.
HP 3S6IA
DYNAMIC SGNAL ANALYZER
-OCA M X K 1
0UTW1W*«I
BWCCABtf
BNC M W t t n .
K K M
— /
~~
■oNG
M TWO-
FIGURE 3-3.
\
"
- •• » H <■-.-■
CKIOAO
SETUP FOR REFERENCE MEASUREMENT WITH HP 3561A
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
m
HEWLETT
r,«rC(7rriZ
PACKARD
2.
3048A
° p t i ° n K21
03048-92035
Page 11 of 21
Press the green [PRESET] key on the HP 3561A.
3. Setup the HP 3561A as follows:
FORMAT
FREQ
SINGLE
START 0 Hz
10 Hz SPAN
FREQ AXIS to log
WINDOW
UNIFORM
SOURCE
PERIODIC NOISE
0 dB ATTN
RANGE
AUTO RNG off
perform SINGLE AUTO RNG
INPUT
RMS
4 AVGS
START
start a measurement
sweep
4. Wait for the HP 3561A to complete the sweep of 4
averages and then continue the setup of the HP
3561A as follows:
VERT SCALE
STORE/RECALL
DEFINE TRACE
SINGLE AUTO SCL
STORE IN Ml
MATH FCN SELECT
MAG / Ml
VERT SCALE
perform SINGLE AUTO SCL
2 dBV FULL SCALE
5. The trace should be a straight line in the
center of the HP 3561A display.
6. Replace the Calibration Load with the AM
Detector Filter as shown in Figure 3-4 and set
the 'DETECTOR POLARITY' switch to the 'POS'
position.
7.
Press the [START] key on the HP 3561A and wait
for the HP 3561A to complete the measurement.
8. Position the HP 3561A marker to each of the
frequencies listed in Table 3-2 by pressing
[MKR], (DEFINE MKR POS), frequency to be
measured (in hertz), and (Hz) on the HP 3561A.
Record the marker level for each frequency under
'POS DETECTOR POLARITY' in Table 3-2.
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
m
3048A Option K21
03048-92035
Page 12 of 21
HEWLETT
PACKARD
9.
Set the 'DETECTOR POLARITY' switch to the 'NEC
position. Repeat Steps 7 and 8. Record the
results under 'NEG DETECTOR POLARITY' in Table
3-2.
HP 3561A
DYNAMIC SIGNAL ANALYZER
f * x t SOURCE
OUT PUU HEAP)
BNCCABlf
BCO-B40 "
B « ADAPTER
«0-O0M
•*• 03048-620"
HP W04B-4J013
CAIORA'CN CADU
«*PtD*MC£ M A T C H *
UtTWiCfl"
MP»48A OPT. K21
AMOEUCTOnrWEf
FIGURE 3-4. SETUP FOR FLATNESS TEST WITH HP 3561A
TABLE 3-2.
FLATNESS TEST RESULTS FROM .1 HzTO 10 Hz
MEASURED RESULTS
FREQ
(MHz)
POS DETECTOR POLARITY
LEVEL
(dB)
0.1
1.0
5.0
10.0
LOWER
LIMIT
(dB)
UPPER
LIMIT
(dB)
-5.0
-0.5
-0.5
-0.5
-2.0
0.5
0.5
0.5
NEG DETECTOR POLARITY
LEVEL
(dB)
LOWER
LIMIT
(dB)
UPPER
LIMIT
(dB)
-5.0
-0.5
-0.5
-0.5
-2.0
0.5
0.5
0.5
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
LV1
3048A Option K21
03048-92035
Page 13 of 21
HEWLETT
PACKARD
PERFORMANCE TEST 3
DC LEAKAGE TEST
DESCRIPTION
This t e s t measures the leakage current of the capacitors
in the AM Detector F i l t e r . A 5V supply i s applied to
the input. The output is connected through a 50 ohm
feed-thru to the input of a v o l t m e t e r . The leakage
current is measured by measuring the voltage dropped
across the 50 ohm f e e d - t h r u .
EQUIPMENT
VOLTMETER
POWER SUPPLY
50 OHM FEED-THRU
HP 3478A
HP 6205B
HP 10100C
PROCEDURE
1.
Connect the equipment up as shown in Figure 3-5.
2.
Set the 'DETECTOR POLARITY' switch to the 'POS'
position.
3.
Turn on the power supply and set it for +5 Volts.
4.
Wait for 2 minutes and then read the voltmeter.
Record the voltmeter reading below:
Voltmeter reading
spec:
< 3.5 mV
,.»,, ....
FIGURE 3-5.
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
m
3048A Option K21
03048-92035
Page 14 of 21
HEWLETT
PACKARD
SECTION IV.
REPLACEABLE PARTS
Table 4-1 l i s t s the replaceable p a r t s . I t is organized
w i t h the e l e c t r i c a l components f i r s t , in alphabetical
order by reference designator, followed by mechanical
p a r t s . The f o l l o w i n g information i s given f o r each
part:
a.
b.
c.
d.
e.
the
the
the
the
the
reference designator;
HP Part Number;
total quantity (Qty) used in the instrument;
part number check digit (CD); and
description of the parts.
TABLE 4-1. REPLACEABLE PARTS
REFER.
DESIG.
HP PART
NUMBER
Al
A1C1
A1C2
A1C3
A1C4
A1C5
A1C6
A1C7
A1C8
A1C9
A1C10
A1C11
A1C12
A1C13
A1C14
A1C15
A1C16
A1CR1
A1CR2
A1CR3
A1J1
03048-62101
0160-4380
0160-3873
0160-5469
0180-2144
0180-2144
0180-2144
0180-2144
0180-2144
0180-2144
0180-2144
0180-2144
0180-2144
0180-2144
0180-2144
0180-2144
0180-2144
1901-0880
1901-0880
1901-0731
1250-2091
QTY
1
1
1
1
13
2
1
2
C
D
DESCRIPTION
3
0
3
9
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
5
AM DETECTOR FILTER ASSEMBLY
CAPACITOR-FXD 1PF 1.25PF 200V CER
CAPACITOR-FXD 4.7PF + .5F 200V CER
CAPACITOR-FXD 1UF ±10% 50VDC MET-POLYE
CAPACITOR-FXD 200UF +75-10% 25VDC AL
CAPACITOR-FXD 200UF +75-10% 25VDC AL
CAPACITOR-FXD 200UF +75-10% 25VDC AL
CAPACITOR-FXD 200UF +75-10% 25VDC AL
CAPACITOR-FXD 200UF +75-10% 25VDC AL
CAPACITOR-FXD 200UF +75-10% 25VDC AL
CAPACITOR-FXD 200UF +75-10% 25VDC AL
CAPACITOR-FXD 200UF +75-10% 25VDC AL
CAPACITOR-FXD 200UF +75-10% 25VDC AL
CAPACITOR-FXD 200UF +75-10% 25VDC AL
CAPACITOR-FXD 200UF +75-10% 25VDC AL
CAPACITOR-FXD 200UF +75-10% 25VDC AL
CAPACITOR-FXD 200UF +75-10% 25VDC AL
DIODE-GEN PRP 125MA DO-35
DIODE-GEN PRP 125MA DO-35
DIODE-PWR RECT 400V 1A
CONNECTOR-RF SMA FEM PC 50-OHM
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
tvi
3048A Option K21
HEWLETT
PACKARD
03048-92035
Page 15 of 21
TABLE 4- 1.
REFER.
DESIG.
HP PART
NUMBER
A1J2
A1J3
A1J4
A1J5
A1J6
A1J7
A1J8
A1J9
A1J10
A1J11
A1J12
A1J13
A1J14
A1L1
A1MP1
A1R1
A1R2
A1R3
A1R4
A1R5
A1R6
A1R7
A1R8
A1S1
1250-2091
1251-1998
1251-1998
1251-1998
1251-1998
1251-1998
1251-1998
1251-1998
1251-1998
1251-1998
1251-1998
1251-1998
1251-1998
9100-2249
5041-0201
0757-0346
0757-0416
0698-7260
0757-0346
0757-0346
0757-0346
0757-0346
0757-0346
3101-2252
08640-20230
2200-0139
2200-0139
2200-0139
2200-0139
2200-0139
2200-0139
6960-0016
6960-0016
MP1
MP2
MP3
MP4
MP5
MP6
MP7
MP8
MP9
QTY
12
1
1
6
1
1
1
1
6
4
REPLACEABLE PARTS (cont'd)
C
D
DESCRIPTION
5
3
3
3
3
3
3
3
3
3
3
3
3
6
6
2
7
2
2
2
2
2
2
3
6
6
6
6
6
6
6
0
0
CONNECTOR-RF SMA FEM PC 50-OHM
CONNECTOR-SGL CONT SKT .025-IN-BSC-SZ
CONNECTOR-SGL CONT SKT .025-IN-BSC-SZ
CONNECTOR-SGL CONT SKT .025-IN-BSC-SZ
CONNECTOR-SGL CONT SKT .025-IN-BSC-SZ
CONNECTOR-SGL CONT SKT .025-IN-BSC-SZ
CONNECTOR-SGL CONT SKT .025-IN-BSC-SZ
CONNECTOR-SGL CONT SKT .025-IN-BSC-SZ
CONNECTOR-SGL CONT SKT .025-IN-BSC-SZ
CONNECTOR-SGL CONT SKT .025-IN-BSC-SZ
CONNECTOR-SGL CONT SKT .025-IN-BSC-SZ
CONNECTOR-SGL CONT SKT .025-IN-BSC-SZ
CONNECTOR-SGL CONT SKT .025-IN-BDC-SZ
INDUCTOR RF-CH-MLD 150NH ±10%
PUSHBUTTON 1/4 CHINA WHITE
RESISTOR 10 1% -125W TF TC=0+100
RESISTOR 511 1% .125W TF TC=0±100
RESISTOR 10K 1% .05W TF TC=0±100
RESISTOR 10 1% -125W TF TC=0±100
RESISTOR 10 1% .125W TF TC=0±100
RESISTOR 10 1% .125W TF TC=0+100
RESISTOR 10 1% .125W TF TC=0±100
RESISTOR 10 1% .125W TF TC=0±100
SWITCH-PB DPDT ALTNG 4A 250 VAC
FILTER OR AMPLIFIER HOUSING
SCREW-MACH 4-40 .25-IN-LG PAN-HD-POZI
SCREW-MACH 4-40 .25-IN-LG PAN-HD-POZI
SCREW-MACH 4-40 .25-IN-LG PAN-HD-POZI
SCREW-MACH 4-40 .25-IN-LG PAN-HD-POZI
SCREW-MACH 4-40 .25-IN-LG PAN-HD-POZI
SCREW-MACH 4-40 .25-IN-LG PAN-HD-POZI
PLUG-HOLE TR-HD FOR .125-D-HOLE NYL
PLUG-HOLE TR-HD FOR .125-D-HOLE NYL
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
m
3048A Option K21
HEWLETT
PACKARD
03048-92035
Page 16 of 21
TABLE 4-1.
REFER.
DESIG.
MP10
MP11
MP12
MP13
MP14
MP15
MP16
MP17
MP18
HP PART
NUMBER
REPLACEABLE PARTS (cont'd)
QTY
6960-0016
6960-0016
03048-02011
08665-21006
08665-21006
1250-0569
1250-0569
1250-2280
1250-2280
1
2
2
2
C
D
0
0
8
7
7
8
8
4
4
DESCRIPTION
PLUG-HOLE TR-HD FOR .125-D-HOLE NYL
PLUG-HOLE TR-HD FOR .125-D-HOLE NYL
AM DETECTOR FILTER HOUSING COVER
SPACER
SPACER
NUT-RF CONN, 1/4-36 THD, 5/16-IN
NUT-RF CONN, 1/4-36 THD, 5/16-IN
WASHER-RF CONN
WASHER-RF CONN
SECTION V. SERVICE
5-1.
INTRODUCTION
This section contains information for troubleshooting
and repairing the AM Detector Filter. Also included in
this section are schematics and parts lists for the
Impedance Matching Network and Calibration Load required
to run the Performance Tests.
5-2.
IMPEDANCE MATCHING NETWORK
The Impedance Matching Network requires no periodic
maintenance. If servicing is required, refer to the
schematic diagram in Figure 5-1 on page 18 of this
manual.
5-3.
CALIBRATION LOAD
The Calibration Load requires no periodic maintenance.
If servicing is required, refer to the schematic diagram
in Figure 5-3 on page 19 of this manual.
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
r
tvi
3048A Option K21
„.^7rJI
PACKARD
5-4.
03048-92035
page 17 of 21
REPLACEMENTS
Replacements for the Impedance Matching Network and
Calibration Load can be built with the following
procedure:
1. The parts required to build these devices are
listed on pages 18 and 19.
2.
Solder two SMC right angle pc board connectors
(1250-0836) together as shown in Figures 5-2 and
5-4.
3. Cut the inside ground posts from the connectors.
4.
Solder the resistors to the center and ground
posts.
5. A resistor lead or buss wire must be connected
between the two center posts and soldered as
shown in Figure 5-4.
5-5.
FUSES
To protect the AM Detector Filter from a large dc
voltage at the input, A1R1 acts as a fuse. If A1R1 is
damaged, A1R4 through A1R8 are spare and can be used to
replace A1R1. A1R1 and A1R4 through A1R8 are inserted
into sockets for easy removal and replacement.
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
LV1
3048A Option K21
HEWLETT
PACKARD
03048-92035
Page 18 of 21
FIGURE 5 - 1 .
IMPEDANCE MATCHING NETWORK SCHEMATIC
CUT GROUND POSTS
R2
CUT GROUND POSTS
SOLDER CONNECTORS
TOGETHER
FIGURE 5-2. REPLACEMENT IMPEDANCE MATCHING NETWORK
TABLE 5-1.
REFER.
DESIG.
Rl
R2
REPLACEMENT IMPEDANCE MATCHING NETWORK PARTS LIST
HP PART
NUMBER
QTY
C
D
0698-7205
0698-7244
1250-0836
1250-0836
1250-1694
1250-1697
1
1
2
2
1
1
0
7
2
2
2
5
DESCRIPTION
RESISTOR 51.1 1% .05W TF TC=0±100
RESISTOR 2.15K 1% .05W TF TC=0±100
CONNECTOR-RF SMC M PC 50-OHM
CONNECTOR-RF SMC M PC 50-OHM
ADAPTER-COAX STR F-SMA F-SMC
ADAPTER-COAX STR M-SMA F-SMC
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
3048A Option K21
03048-92035
Page 19 of 21
tvi HEWLETT
PACKARD
FIGURE 5-3.
CALIBRATION LOAD SCHEMATIC
CUI GROUND POSTS
SOLDER CONNECTORS
TOGETHER
CUT GROUND POSTS
FIGURE 5-4. REPLACEMENT CALIBRATION LOAD
TABLE 5-2. REPLACEMENT CALIBRATION LOAD PARTS
REFER.
DESIG.
Rl
R2
HP PART
NUMBER
0698-7229
0698-7260
1250-0836
1250-0836
1250-1694
1250-1694
QTY
1
1
2
2
C
D
8
7
2
2
2
2
DESCRIPTION
RESISTOR 511 1% .05W TF TC=0±100
RESISTOR 10K 1% .05W TF TC=0+100
CONNECTOR-RF SMC M PC 50-OHM
CONNECTOR-RF SMC M PC 50-OHM
ADAPTER-COAX STR F-SMA F-SMC
ADAPTER-COAX STR F-SMA F-SMC
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
tvi
3048A Option K21
03048-92035
HEWLETT
PACKARD
Page 20 of 21
»
tt
IX
02
<H H? h>
<H M l« o| Hi H">l R6 |o
Rf to
C4
B
o-
C5
l l
e
C6
l!
o
C7
• 1
a
c>
o| HB to
e
I j
C13
'
C11
e
1 1
C15
■
CI6
-
o
/
■
■
FIGURE 5-5. Al COMPONENT LOCATOR
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.
m
HEWLETT
PACKARD
3048A Option K21
03048-92035
Page 21 of 21
Copyright 1988 - HEWLETT-PACKARD COMPANY - Spokane Division
East 24001 Mission Avenue, TAF-C-34, Spokane, WA 99220 U.S.A.