HP Hewlett Packard Fish Finder 5345A User Manual

*TB 9-6625-1996-35  
DEP ARTMENT OF THE ARMY TECHNICAL BULLETIN  
CALIBRATION P ROCEDURE F OR  
F REQUENCY COUNTER  
HEWLETT-P ACKARD  
MODELS 5345A, 5345A/E28 AND 5345AOP T12  
Headquarters, Department of the Army, Washington, DC  
25 J une 2001  
Approved for public release; distribution is unlimited  
R E P OR TING OF E R R OR S AND R E COMME NDE D IMP R OVE ME NTS  
You can help improve this publication. If you find any mistakes or if you know of a  
way to improve the procedure, please let us know. Mail your letter or DA Form 2028  
to: Commander, U. S. Army Aviation and Missile Command, ATTN: AMSAM-MMC-  
MA-NP, Redstone Arsenal, AL 35898-5230. A reply will be furnished to you. You may  
also send  
in  
your  
comments  
electronically  
to our  
e-mail address:  
2028@redstone.army.mil or FAX 256-842-6546/DSN 788-6546.  
SECTION  
I.  
IDENTIFICATION AND DESCRIPTION  
P a r a gr a p h  
P a ge  
Test instrument identification ............................  
Forms, records, and reports ...............................  
Calibration description .......................................  
1
2
3
2
2
2
II.  
EQUIPMENT IDENTIFICATION  
Equipment required ...........................................  
Accessories required ..........................................  
4
5
3
3
III.  
CALIBRATION PROCESS  
Preliminary instructions ....................................  
Equipment setup................................................  
Time base stability.............................................  
Sensitivity..........................................................  
A12 Interface I/O................................................  
Power supply .....................................................  
Final procedure..................................................  
6
7
8
4
4
5
6
8
9
10  
11  
12  
9
12  
__________  
This bulletin supersedes TB 9-6625-1996-35, dated 13 November 1985.  
 
TB 9-6625-1996-35  
SECTION II  
EQUIP MENT REQUIREMENTS  
4. Equ ip m en t Requ ir ed . Table 2 identifies the specific equipment to be used in this  
calibration procedure. This equipment is issued with Secondary Transfer Calibration  
Standards Set AN/GSM-287 or AN/GSM-705. Alternate items may be used by the  
calibrating activity. The items selected must be verified to perform satisfactorily prior  
to use and must bear evidence of current calibration. The equipment must meet or  
exceed the minimum use specifications listed in table 2. The accuracies listed in table 2  
provide a four -to-one ratio between the standard and TI.  
5. Accessor ies R eq u ir ed . The accessories required for this calibration are common  
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this  
calibration procedure. The following peculiar accessories are also required for this  
calibration: Adapter, SMC jack to BNC plug, Hewlett-Packard Model 1250-0831;  
Extender Boards, 10-terminal circuit board extenders (05345-60201 and 05345-60202);  
and Extender Cable, Hewlett-Packard Model 05345-60205.  
Table 2. Minimum Specifications of Equipment Required  
Manufacturer and model  
Common name  
Minimum use specifications  
(part number)  
AUTOTRANSFORMER  
Range: 105 to 125 V ac  
General Radio, Type  
Accuracy: ±1%  
W10MT3AS3 (7910809) or  
Ridge, Model 9020A (9020A)  
or Ridge, Model 9020F (9020F)  
(SG-1288/G)  
FUNCTION GENERATOR  
Range: 10 Hz to 30 MHz  
Amplitude: 0 to 40 mV rms  
Accuracy: ±3% (±1.5 dB)  
Range: 10 MHz  
FREQUENCY DIFFERENCE  
METER  
3.7 to 12.4 GHz, Hewlett-  
Packard, Model 537A  
(7910718-2)  
Resolution: 1 part in 10-10 per day  
MULTIMETER  
Range: -2 to +2 Vdc  
Hewlett-Packard, Model  
3458A (3458A)  
Accuracy: ±0.000125%  
Range: 0 to ± 15 V dc  
Accuracy: ±0.03%  
OSCILLOSCOPE  
SIGNAL GENERATOR  
Bandwidth: 100 MHz  
Sensitivity: 50 mV/div  
Sweep rate: 10 ns/div  
Accuracy: ±3%  
Range: 30 to 500 MHz  
Amplitude: 0 to 40 mV rms  
Accuracy: ±3% (±1.5 dB)  
Frequency: 10 MHz  
Tektronix, Type 2465BOPT46  
(2465BOPT46)  
(SG-1207/U)  
TIME/FREQUENCY  
WORKSTATION  
Autek Systems Corp. Model  
620 (MIS-38946)  
Accuracy: 1.25 parts in 10-10 per day  
3
 
TB 9-6625-1996-35  
SE CTION III  
CALIBRATION P ROCESS  
6. P r elim in a r y In str u ction s  
a . The instruction outlined in paragraphs 6 and 7 are preparatory to the calibration  
process. Personnel should become familiar with the entire bulletin before beginning the  
calibration.  
b . Items of equipment used in this procedure are referenced within the text by  
common name as listed in table 2.  
c. Unless otherwise specified, verify the result of each test and, whenever the test  
requirement is not met, take corrective action before continuing with the calibration.  
Adjustments required to calibrate the TI are included in this procedure. Additional  
maintenance information is contained in the manufacturer's manual for this TI.  
d . Unless otherwise specified, all controls and control settings refer to the TI.  
7. Equ ip m en t Setu p  
WARNING  
HIGH VOLTAGE is used or exposed during the performance  
of this calibration. DEATH ON CONTACT may result if  
personnel fail to observe safety precautions. REDUCE  
OUTPUT(S) to minimum after each step within the  
performance check where applicable.  
a . Remove protective cover from TI only when necessary to make adjustments.  
Replace cover after completing the adjustments.  
b . Connect TI rear panel DIGITAL BUS 1.0 LOAD to controller GPIB0 (opt 12  
only).  
c. Connect TI to autotransformer, connect autotransformer to a 115 V ac source and  
adjust for 115 V ac output.  
d . Set P OWER switch to ON and allow at least 1 hour for stabilization. If TI has  
been disconnected from line power for more than 24 hours, allow at least 24 hours for  
warmup before beginning calibration.  
e. Set TI rear panel INT STD/EXT STD switch to INT STD and INTERNAL/EXT  
ARM/EXT GATE switch to INTERNAL (OPT 12 only).  
f. Position controls as listed in (1) through (10) below:  
(1) F UNCTION switch to FREQ A.  
(2) GATE TIME switch to 100 m s .  
(3) DISP LAY P OSITION switch to AUTO.  
4
 
TB 9-6625-1996-35  
(4) SAMP LE RATE control fully ccw.  
(5) CHANNEL A and B LEVEL controls to P RESET .  
(6) CHANNEL A and B SLOP E switches to + (positive).  
(7) CHANNEL A and B input impedance switches to 50 W.  
(8) CHANNEL A and B ATTEN switches to X1.  
(9) CHANNEL A and B AC -DC switches to DC.  
(10) CH E CK-COM A-SEP switch to SEP .  
8. Tim e Ba se St a b ilit y  
a . P er for m a n ce Ch eck  
(1) Connect time/frequency workstation OUTP UT 1 MHz to frequency difference  
meter REF INP UT .  
(2) Connect TI F REQ STD OUTP UT 10 MHz (rear panel) to frequency  
difference meter SIG INP UT .  
(3) Adjust A18 FREQ ADJ (fig. 1) for minimum difference indication on frequency  
difference meter.  
Figure 1. Test instrument - top view.  
(4) Allow at least 24 hours for stabilization. Frequency difference meter  
indication will remain within 5 parts in 10-10  
.
(5) Adjust autotransformer output to 105 V and allow 15 minutes for  
stabilization. Verify that TI oscillator drift is less than 1 part in 10-10  
.
(6) Adjust autotransformer output to 125 V and allow 15 minutes for  
stabilization. Verify that TI oscillator drift is less than 1 part in 10-10  
.
(7) Adjust autotransformer output to 115 V.  
b . Ad ju stm en ts . No further adjustments can be made.  
5
 
TB 9-6625-1996-35  
9. Sen sit ivit y  
a . P er for m a n ce Ch eck  
(1) Set function generator as listed in (a) through (c) below:  
(a) Ou tp u t Typ e to Un Ba la n ced 600  
(b) Function to Sin e Wa ve .  
(b) Frequency to 10 H z.  
(c) Amplitude to 1 m V.  
(2) Position TI controls as listed in (a) through (f) below:  
(a) CHANNEL A LEVEL control to P RESET .  
(b) CHANNEL A SLOPE switch to +.  
(c) CHANNEL A 50W/1MW switch to 50W.  
(d) CHANNEL A ATTEN X1/X10 switch to X1.  
(e) CHANNEL A AC/DC switch to DC.  
(f) CHECK/COM A/SEP switch to SEP .  
(3) Connect TI CHANNEL A input to function generator F u n ction Ou tp u t  
Un ba la n ced .  
(4) Press the function generator En ter key to enable the knob, and slowly rotate  
the function generator knob cw until TI display GATE light flashes and indication is  
stable at approximately 10 Hz.  
(5) Verify that the function generator indicates within limits specified in table 3.  
If not perform b below.  
(6) Repeat technique of 1 through (5) above for remaining settings listed in table  
3.  
Table 3. Sensitivity  
Test  
instrument  
CHECK-COM Function generator/signal  
Function generator/signal  
generator indications  
(£)  
A-SEP switch  
setting  
SEP  
generator frequency  
setting  
input  
CHANNEL A  
CHANNEL A  
CHANNEL A  
CHANNEL A  
CHANNEL A1  
CHANNEL A  
CHANNEL A  
CHANNEL A2  
CHANNEL A  
CHANNEL A  
CHANNEL A  
CHANNEL A1  
CHANNEL A  
CHANNEL A  
10 Hz  
0.071 VPP  
0.071 VPP  
0.071 VPP  
0.071 VPP  
SEP  
10 kHz  
SEP  
100 kHz  
SEP  
1
MHz  
SEP  
SEP  
SEP  
COM A  
COM A  
COM A  
COM A  
COM A  
COM A  
COM A  
10 MHz  
100 MHz  
500 MHz  
10 Hz  
10 kHz  
100 kHz  
0.025  
VRMS  
0.025 VRMS  
0.025 VRMS  
0.141 VPP  
0.141 VPP  
0.141 VPP  
1
MHz  
0.141 VPP  
10 MHz  
100 MHz  
400 MHz  
0.050 VRMS  
0.050 VRMS  
0.050 VRMS  
1Substitute the signal generator for the function generator.  
2Substitute the function generator for the signal generator.  
6
 
TB 9-6625-1996-35  
b . Ad ju stm en ts  
(1) Substitute signal generator for function generator.  
(2) Connect signal generator RF OUTP UT connector to TI CHANNEL A input.  
(3) Connect signal generator EXT REF INP UT connector (rear panel) to TI  
F REQ STD OUTP UT 10 MHz connector (rear panel).  
(4) Extend front panel display assembly using extender cable 05345-60205.  
Disconnect CHAN A P1 caple from A9 J 1 CHA (CHAN B P2 cable to A9 J 2 CH B for  
CHANNEL B ) and connect A9 J 1 CH A (A9 J 2 CH B for CHANNEL B ) to oscilloscope  
CHANNEL A.  
(5) Position TI CHANNEL A and CHANNEL B controls as listed in (a) through  
(f) below:  
(a) LEVEL control to P RESET.  
(b) SLOP E switch to +.  
(c) IMP EDANCE switch to 50W.  
(d) ATTEN switch to X1.  
(e) COUP LING switch to DC.  
(f) CH E CK-COM A-SEP switch to SEP .  
(6) Set signal generator frequency to 100 MHz and amplitude to 25 mV.  
(7) Position oscilloscope controls as listed in (a) through (f) below:  
(a) CH 1 VOLTS/DIV switch to .2 V.  
(b) SE C/DIV switch to 20 n s .  
(c) Pull delayed sweep switch and set to 10 n s .  
(d) Set TRIGGER MODE pushbutton to AUTO.  
(e) Set TRIGGER SOURCE pushbutton to VERT.  
(f) Set TRIGGER C OUP LING pushbutton to DC.  
(8) Adjust A3R41 (fig. 2)(A3R3 (fig. 2) for CHANNEL B ) for a symmetrical  
waveform displayed on oscilloscope (R).  
Figure 2. A3 input attenuator (cmponent side).  
(9) While alternately setting CHANNEL A and CHANNEL B SLOPE switches  
to (+) and (-), observe that waveform maintains its symmetrical form.  
7
 
TB 9-6625-1996-35  
(10) Repeat (8) and (9) above as required to compensate for interaction.  
(11) Disconnect oscilloscope and signal generator from TI, reinstall TI from panel,  
and reconnect CHAN A P1 cable to A9 J 1 CH A and CHAN B P2 cable to A9 J 2 CH B.  
(12) Replace TI covers.  
10. A12 In ter fa ce I/O  
a . P er for m a n ce Ch eck  
NOTE  
This option can only be calibrated in an automated mode.  
The TI must be connected to a controller with a properly  
configured GPIB IEEE interface card.  
NOTE  
If you are running this section with any controller and or  
software other than the fielded controller and the ICE  
environment, you will have to write the required mnemonics  
and take reading as per the software that you are using.  
(1) Connect TI and multimeter IEEE connectors to the controller GPIB0.  
(2) Assure TI address is set to 2 and multimeter address is set to 12.  
(3) Adjust TI CHANNEL A and CHANNEL B LEVEL controls to P RESET .  
(4) Remove screws holding TI top cover. Do not remove top cover until  
instructed.  
(5) Press the RESET key on the multimeter.  
(6) Output the following mnemonic string to the TI: I2B500A500I1.  
(7) Con n ect m u lt im et er In pu t H I a n d L O t o TI r ea r p a n el C H AN A  
T R I G L E VE L .  
(8) Output the following mnemonic string to the TI: B500A000I1.  
(9) Ret r ieve t h e r ea d in g fr om t h e m u lt im et er . I f t h e r ea d in g is n ot  
wit h in lim it s list ed in t a ble 4, per for m t h e list ed a dju st m en t .  
(10) Repeat technique of (7) through (9) above for remaining table 4 entries.  
Table 4. A12 interface I/O.  
Connect multimeter to  
test instrument  
rear panel connector  
Multimeter indication  
Output  
mnemonic  
Perform adjust  
listed below  
b 1  
Min  
-2.0005  
Max  
-1.9995  
B500A000I1  
CHAN A TRIG LEVEL  
8
 
TB 9-6625-1996-35  
A:00I1  
B000I1  
B:00I1  
CHAN A TRIG LEVEL  
CHAN B TRIG LEVEL  
CHAN B TRIG LEVEL  
1.9995  
-2.0005  
1.9995  
2.0005  
-1.9995  
2.0005  
b 2  
b 3  
b 4  
b . Ad ju stm en ts  
NOTE  
Remove top cover to make adjustments, then replace top  
cover before repeating (a) above.  
(1) Adjust A12 pot A (R69) (fig. 3) for a –2.0000 ± 0.0005 V dc multimeter  
indication (R).  
(2) Adjust A12 pot B (R74) (fig. 3) for a 2.0000 ± 0.0005 V dc multimeter indication  
(R).  
(3) Adjust A12 pot D (R86) (fig. 3) for a –2.0000 ± 0.0005 V dc multimeter  
indication (R).  
(4) Adjust A12 pot C (R82) (fig. 3) for a –2.0000 ± 0.0005 V dc multimeter  
indication (R).  
Figure 3. I/O adjustment location.  
11. P ow er Su p p ly  
NOTE  
Do not perform power supply check if all other parameters  
are within tolerance.  
9
 
TB 9-6625-1996-35  
a . P er for m a n ce Ch eck  
(1) Mount circuit board A6 (fig. 1) on extender boards.  
(2) Connect multimeter between A6TP6 and + 5 V RET (fig. 4). If multimeter  
does not indicate between 4.98 and 5.02 V dc, perform b (1) below.  
(3) Connect multimeter between A6TP3 and - 5.2 V RET (fig. 4). If multimeter  
does not indicate between -5.18 and -5.22 V, perform b (2) below.  
(4) Replace circuit board A6 in TI and mount circuit board A7 (fig. 1) on extender  
boards.  
(5) Connect multimeter between A7TP1 (A7TP2; serial prefix 1428A and p r ior )  
a n d + 15 RE T (fig. 4). If multimeter does n ot in dica t e bet ween 14.98 a n d 15.02  
V, p er for m b (3) below.  
(6) Connect multimeter between A7TP3 (A7TP7; serial prefix 1428A and p r ior )  
a n d -15 V RE T (fig. 4). If multimeter d oes n ot in d ica t e bet ween -14.98 a n d -  
15.02 V, per for m b (4) below.  
b . Ad ju stm en ts  
(1) Adjust R19 (fig. 4) for 5.00 V indication on multimeter (R).  
(2) Adjust R29 (fig. 4) for 5.20 V indication on multimeter (R).  
(3) Adjust R16 (fig. 4) (R18 (fig. 4); serial prefix 1428A and prior) for +15.00 V  
indication on multimeter (R).  
(4) Adjust R17 (fig. 4) (R24 (fig. 4); serial prefix 1428A and prior) for -15.00 V  
indication on multimeter (R).  
10  
 
TB 9-6625-1996-35  
R18  
R24  
+15V  
RET  
TP7  
TP2  
A7 CIRCUIT BOARD S/N 1428A  
-15V RET  
TP3  
R19  
R29  
+5V  
RET  
TP6  
-5.2 V  
RET  
A6 CIRCUIT BOARD  
R16  
R17  
TP3  
TP1  
-15V  
RET  
+15V RET  
A7 CIRCUIT BOARD S/N 1808  
Figure 4. Power supply circuit boards.  
11  
 
TB 9-6625-1996-35  
12. F in a l P r oced u r e  
a . Deenergize and disconnect all equipment.  
b . Annotate and affix DA label/form in accordance with TB 750-25.  
12  
 
TB 9-6625-1996-35  
By Or d er of t h e Secr et a r y of t h e Ar m y:  
0116212  
Distribution:  
To be distributed in accordance with IDN 342172, requirements for calibration procedure  
TB 9-6625-1996-35.  
P IN: 046669-000  
 
 

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