Description of Test Set, Resolver AN/ASM-101

supplied to connect the resolver test set with

Altitude . . . . . . ... -1,000 ft to 55,000 ft

Weight . . . . . . . . . .. 3 lb.

the additional equipment (par. 7) necessary

to perform tests:

b. Filter, Low Pass F-769/ASM-101.

Input impedance . . . . . . . . . . 380,000 ohms.

(1) Two Cable Assemblies, Radio Fre-

Output impedance . . . . . . . . . 100,000 ohms.

quency CG409/U (signal generator

Response . . . . . . . . . . . . . . . . . -6 decibels at 35 cps.

cable) are supplied for connecting the

Environmental operating limits:

signal generator (par. 7) to the re-

Temperature . . . . . . . . . . -30 to 55c. (-22 to

solver test set. Both ends of each ca-

131 F.).

Relative humidity . . . . . 0 to 95% at 32 C. (90

ble terminate in a male coaxial con-

F.).

nector, UG-88/U.

Altitude . . . . . . . . . . . . . . -1,000 ft to 55,000 ft.

(2) Cable Assembly, Radio Frequency

Weight . . . . . . . . . . . . . . . 1 lb.

CG-2559/U (alternating current (at)

5. Components

voltmeter cable) is supplied to con-

nect the resolver test set to the ac volt-

Components of Test Set, Resolver AN/ASM-

meter (par. 7). One end of the cable

101 are listed in the basic issue items list (app.

terminates in a male coaxial plug, UG-

III). The components of Test Set, Resolver

88/U; the other end terminates in a

AN/ASM101 are illustrated in figure 1.

dual plug which mates with the IN-

PUT jack on the ac voltmeter (par.

6. Description of Test Set, Resolver AN/ASM-101

7c).

(fig. 1)

a. Test Set, Resolver TS1810/ASM101.

7. Additional Equipment Required

Test Set, Resolver TS-1810/ASM-101 (re-

The following equipment is not supplied as

solver test set ) may be rack mounted. The front

part of Test Set, Resolver AN/ASM101, but

panel is a standard 19-inch rack panel, on which

is required to enable the user to perform the

test cable connectors, potentiometers, and a

test and adjustment functions of the equip-

switch are mounted.

ment.

b. Filter, Low Pass F-769/ASM101. Filter,

a. Signal Generator. Modulator MD-83A/

Low Pass F-769/ASM101 (filter) contains

ARN (signal generator), or equivalent, is re-

two jacks mounted on the front panel. A cable,

quired to supply the 30-cycle-per-second (cps)

terminating in a plug, is fastened to the unit.

variable-phase (VAR ) and reference-phase

c. Test Cables. Two test cables are supplied

(REF. ) input signals needed by the resolver

to connect the resolver test set to the equip-

test set.

ment under test. Both test cables are furnished

b. Oscilloscope. Oscilloscope AN/USM81,

for use with components of Computer Set, Nav-

or equivalent, is required as a null point indi-

igational AN/ASN-33. Cable Assembly, Spe-

cator during testing.

cial Purpose, Electrical CX-8327/ASM-101

(indicator test cable) is used to connect the

c. Ac Voltmeter. Voltmeter, Electronic ME

resolver test set to the AN/ASN-33 course in-

30B/U, or equivalent, is required for setting

dicator; and Cable Assembly, Special Purpose,

the input level during testing.

Electrical CX8376/ASM-101 (selector test

d. Coaxial Tee Connectors. The coaxial tee

cable ) is used to connect the resolver test set to

connectors are used to enable the operator to

the AN/ASN-33 course selector.

monitor the input signals to the resolver test

Note. When the resolver test set is used with equip-

set during initial adjustment and ORZ proce-

ment other than the AN/ASN-33, a suitable test cable

dures, without having to disconnect the inter-

is required to connect the resolver test set to the equip-

connecting cables from the resolver test set.

ment under test. Refer to the technical manual cover-

ing the specific equipment under test for information

Two coaxial tee connectors, UG-274B/U (REF.

concerning the test cables.

tee and VAR tee), are required when per-

Interconnecting Cables. Three cables are

forming the calibration procedure (par. 12).