Test Sets: All About AN/GRM-122 Components

Photo by Staff Sgt. Ian Kummer
 

This article initially appeared in PS 797, pp. 48-50 (Apr 19).

Looking for the TM for the radio test set AN/GRM-122, NSN 6625-01-432-8369? Unfortunately, there’s no single published TM for the test set, but there is a component list that can help you account for Army property per regulations. 
      
Some good news is that there are TMs for the AN/GRM’s major component part, the TS-4317/GRM. They include:
 

• TM 11-6625-3244-12 (Mar 06) 
• TM 9-6625-3244-24P (Mar 06) 
• TM 11-6625-3244-40 (Nov 06).

You can get all three from the Logistics Data Analysis Center (LDAC) Electronic Technical Manuals Online website. TM distribution is restricted, so you’ll need to log in with your CAC first at:
   
Choose the “ETM/IETM” icon and search for the TMs.
 
The following tables can help you sort things out when it comes to Army property accountability:
   
 

Table I Components of Radio Test Set TS-4317/GRM, NSN 6625-01-309-2825
Description	NSN	PN	Cage Code	Qty
Front cover	6625-01-611-5414	2503-7862-200	51190	1
Carrying pouch	8105-01-419-1132	1412-7883-700	51190	1
Connector, adapter, M-F BNC, right angle	5935-01-032-5404	UG-306/U	81349	1
Antenna, flex	5985-01-281-5177	1201-7616-500	51190	1
Cable assembly, AC power	6150-01-252-9297	6041-0001-001	51190	1
Cable assembly, DC power	5995-01-428-9119	6041-7884-500	51190	1
Attenuator, 10 dB, 1 W, BNC, 2.0 GHz	5985-01-414-6405	50F-010-BNC	61162	1
Attenuator, 20 dB	5985-01-414-6413	50F-020-BNC	61162	1
Fuse, 1.25, GL, slow, 250V, 2.0A	5920-00-228-7882	F02B250V2A	81349	1
Fuse, 1.25, GL, fast, 250V, 4.0A	5920-00-557-2647	F02A250V4A	81349	1
Fuse, 1.25, GL, slow, 32V, 15A	5920-00-581-6126	F02B32V15A	81349	1
Current shunt, 10A, 100mV	6625-01-414-3779	7113-7801-100	51190	1
Probe set, DMM	6625-01-414-3780 (1 black probe, 1 red probe)	21078	51190	1
Kit, probe, oscilloscope, X1/REF/X10	6625-01-414-3778	7112-0100-101	51190	1
Microphone	5965-01-414-6414	7001-8645-900	51190	1

   

Table II Components of Test Adapter J-4843A/GRM, NSN 6625-01-432-8368
Description	NSN	PN	Cage Code	Qty
Test set subassembly, J-4843A/GRM	N/A	7003-1543-400	51190	1
Front cover	5340-01-502-2966	7005-1540-200	51190	1
Cable assembly, special purpose (SCSI)	5995-01-413-1849	6041-8380-600	51190	1
Cable assembly, special purpose (DC power)	6150-01-413-0578	6041-8380-700	51190	1
Shield, elec. cable	N/A	2289-7867-600	51190	1
Shield, elec. cable	N/A	2289-7867-300	51190	1
Shield, elec. cable	N/A	2289-7867-400	51190	1

                   

Table III Components of Test Set Subassembly PL-1536/GRM, NSN 6625-01-432-3819
Description	NSN	PN	Cage Code	Qty
Test set subassembly, PL-1536/GRM	6625-01-502-3407	7003-1542-500	51190	1
RF cable assembly (short BNC)	5995-01-413-0576	6052-0700-580	51190	5
Antenna matching network	6625-01-413-7331	7005-8340-700	51190	1
Adapter, connector (part of antenna matching network)	5935-01-037-3476	M55339/16-00914	81349	1
RF cable assembly (long BNC)	5995-01-413-0580	6052-0701-060	51190	1
Cable assy, special purpose, elec.	5995-01-413-1853	6046-0782-400	51190	1
Nut, plain, hex	N/A	517-4	19505	2
Washer, flat	N/A	1414-1565-700	51190	1
Terminal, lug	N/A	2850-1565-800	51190	1
Cover	5999-01-611-5289	1414-2954-000	51190	1
Cable assy, special purpose, elec.	5995-01-413-1852	6041-7885-200	51190	1
Cable assy, radio frequency	5995-01-413-0851	0021-83J0-100	51190	1
Maintenance kit, electronic equip.	6625-01-436-0420	7001-1542-400	51190	1
Test set subassembly	N/A	0021-DKE0-100	51190	1