TM 11-6625-524-14-2
INTRODUCTION
Section 1. G E N E R A L
c. Discrepancy in Shipment Report (DISREP)
1-1. Scope
(SF 361). Fill out and forward Discrepancy in
This manual describes Voltmeter, Electronic
Shipment Report (DISREP) (SF 361) as prescribed
AN/URM-145B (fig. 1-1) and provides instructions
in AR 55-38/NAVSUPINST 4610.33A/AFR 75-18/
for operation and organizational, direct support,
MCO P4610.19B, and DSAR 4500.15.
and general support (GS) maintenance. Instruc-
tions are provided for the operator and the organi-
zational maintenance personnel for installation,
Administrative storage of equipment issued to and
operation, preventive maintenance, and replace-
used by Army activities shall be in accordance with
ment of parts available at organizational mainte-
TM 740-90-1.
nance. Circuit functioning is included for general
1-3.2. Destruction of Army Electronics
support maintenance, together with instructions
Materiel.
appropriate to this category of maintenance for
troubleshooting, testing, adjusting, aligning and
Destruction of Army electronics materiel to pre-
repairing the equipment and replacing mainte-
vent enemy use shall be in accordance with TM
nance parts.
750-244-2.
a. DA Pam 310-4. Refer to the latest issue of DA
You can help improve this manual by calling atten-
Pam 310-4 to determine whether there are new
tion to errors and by recommending improvements
editions, changes or additional publications per-
and stating your reasons for the recommendations.
taining to the equipment.
Your letter or DA Form 2028 (Recommended
b. DA Pam 310-7. Refer to DA Pam 310-7 to de-
Changes to Publications and Blank Forms) should
termine whether there are Modification Work Or-
be mailed direct to Commander, US Army Elec-
ders (MWO'S) pertaining to the equipment.
tronics Command, ATTN: DRSEL-MA-Q, Fort
Monmouth, New Jersey 07703. A reply will be fur-
nished direct to you.
a. Reports of Maintenance and Unsatisfactory
1-4.1. Reporting Equipment Improvement
Equipment. Maintenance forms, records, and re-
R e c o m m e n d a t i o n s (EIR).
ports which are to be used by maintenance person-
EIR's will be prepared using DA Form 2407 (Main-
nel at all maintenance levels are listed in and pre-
scribed by TM 38-750.
tenance Request). Instructions for preparing
b. Report of Packaging and Handling Deficien-
EIR's are provided in TM 38-750, The Army Main-
ties. Fill out and forward DD Form 6 (Packaging
tenance Management System. EIR's should be
Improvement Report) as prescribed in AR 700-
mailed direct to Commander, US Army Electronics
C o m m a n d , ATTN: DRSEL-MA-Q, Fort Mon-
5 8 / N A V S U P I N S T 4030.29/AFR 71-13/MCO
P4030.29A, and DSAR 4145.8.
mouth, New Jersey 07703. A reply will be furnished
direct to you.
Section Il. DESCRIPTION AND DATA
for many associated tests. Such measurements in-
clude the frequency response of both active and
passive networks; that is, amplifiers, and filters;
voltage standing wave ratio (vswr) anti return loss
ter) is a sensitive instrument for the measurement
on transmission lines and attendant systems; at-
of voltages of 300 microvolt (uv) to 3 volts span-
tenuation and insertion loss of rf attenuators; and
ning a frequency range of 20 kilohertz (KHz) to 600
high frequency parameters of transistors. With
megahertz (MHz). In addition to conveniently
true root mean square (rms) response below 0.03
measuring voltage levels in a diversity of radiofre-
volt, wide hand noise can be measured, and by use
quency (rf) circuits, the instrument has application
