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Technical Information and Modifications for
Equipment by Instrument Flight Research (IFR) Corporation
Compiled by Mike Morris WA6ILQ
Maintained by Robert Meister WA1MIK
What happened to IFR ??? In 2002 Aeroflex Inc. (a New York-based holding company) bought IFR for about $60 million and folded it into their other holdings as "Aeroflex Test Solutions." Click here to go to the IFR web site.
Note that there is no actual unit called the (whatever model-number)S/A, it's an abbreviation. The one manual would be for both the S-model and the A-model. The A-model does not have the spectrum analyzer and tracking generator options, the S-model does. And in response to several emails, no, I don't know if an A-model can be field converted into an S-model, or where to get parts, or how to do it.
A lot of older IFRs use blue fiberglass circuit boards. These boards are VERY fragile. You must do ANY necessary soldering with great care and quickly to avoid overheating the board. Also, may old IFRs are having power supply problems. If anyone would like to do an article on troubleshooting and repair we'd be happy to put it here. Likewise an article on attenuator repair, oscilloscope tube replacement, or on any other IFR-related topic.
Most of the IFR products used the same option list:
One of the companies that services IFRs is KG electronics In Wichita Kansas. Contact Kurt Graber at 316-773-0948 or kurtgraber //at// yahoo //dot// com or visit their web site at http://www.kgelectronics.com.
IFR made a lot more models that we have listed below. What you see below
is all that we have.
If you don't see what you need here, then we weren't given it.
Donations of manual files for this page are gratefully accepted.
On some of the equipment below we couldn't get the real IFR docs but were given the military docs. Note that the AN/GRM-114 is the military designation for the IFR 1000S and AN/GRM-114A is a different piece of equiment - the 1100S. Note that some are TM Technical Manuals and others are TB Technical Bulletins.
|IFR FM/AM-500/A documentation:
|Interior photos courtesy of Hans Ronchetti in Australia:
Photo 1 Photo 2 Photo 3 Photo 4 Photo 5 Photo 6
|FM/AM-500/A Service Monitor Maintenance Manual 9.3 MB PDF|
|FM/AM-500/A Service Monitor Operation Manual 1.8 MB PDF|
|The battery pack in this unit consists of six Gates/Hawker Cyclon/Enersys 0800-0004 cells, which are sealed lead-tin cells rated at 2V and 5AH each.|
|IFR FM / AM-1000A/S documentation:
|Photos courtesy of Charles Schmell KS3Z:
Front Left side Rear And one extra...
Inside Bottom Inside Left Side Inside Right side
|Operation Manual for the IFR 1000 S in PDF. Dated 5-29-1980 9.6 MB PDF|
|1000A Service Manual Manual part number 1-23-0610, dated July 1978 26.5 MB PDF|
|TM 11-6625-3016-14 dated 18June1982 OPERATORíS, ORGANIZATIONAL,DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL FOR TEST SET, RADIO AN/GRM-114 (IFR FM/AM-1000S) 10 MB PDF|
|IFR FM / AM-1100A/S documentation:
|Photos courtesy of Tim Ahrens W5FN:
Front Rear Inside left side (scope side) Inside right side (speaker side)
Internals top with hinged panel closed Underside of hinged panel Internals with hinged panel out of the way Inside Bottom
The MM100E is the optional SINAD meter in the hinged cover.
Top (closed) Top (open) Controls Side Circuit board
|FM/AM-1100S/A Maintenance Manual 49.1 MB PDF|
|Radio Test Set AN/GRM-114A, (NSN 6625‑01‑144‑4481)
Operator's Manual TM‑11‑6625‑3016‑10‑1 8.3 MB PDF
|Organizational Maintenance Manual TM‑11‑6625‑3016‑20‑1 5.5 MB PDF|
|TB 9-6625-2059-35 dated 24Sept2004 CALIBRATION PROCEDURE FOR RADIO TEST SET, AN/GRM-114A (IFR MODEL FM/AM-1100S) 1.2 MB PDF|
|IFR FM / AM-1200A/S documentation:
|The original 1200 cannot be upgraded to a 1220S (with tracking generator, etc) and they have the infamous blue PC boards and are a real pain PITA to work on.|
Brochure Photos: Photo 1
|Interior and miscellaneous photos (courtesy of Bob Vaughan AF6RR):
Image 01 Image 02 Image 03 Image 04 Image 05
Image 06 Image 07 Image 08 Image 09 Image 10
Image 11 Image 12 Image 13 Image 14 Image 15
Image 16 Image 17 Image 18 Image 19 Image 20
Image 21 Image 22 Image 23 Image 24 Image 25
Image 26 Image 27 Image 28 Image 29 Image 30
1200A Data sheet 227 kB PDF
1200 Super S Data Sheet 145 kB PDF
1200S/A Operations Manual 7.3
|1200S/A Service Manual 10.6 MB PDF|
1200 Super S Operation
Manual 4.5 MB PDF
Includes remote operation supplement
|Does anybody have any other manuals available for the 1200 (military or otherwise) ?|
|IFR FM / AM-1500A/S documentation:
|Exterior photos (supplied by Andy WD4KDN):
|Interior and miscellaneous photos:
New and old batteries
Battery removed from pcb
Battery installed on pcb
CPU and memory pcb
Inside the front panel
Interior (top) view
Interior (bottom) view
Motherboard support bracket
New battery installed
Next card behind cpu circuit board
1500 Application Notes 5.5 MB PDF
Scanned from a 1986 publication but the theory is as applicable as it was over 20 years ago.
Another version of the IFR-1500 Application Notes...
IFR produced a spiral-bound book that was packed with each unit.
Joe Szczech K1IKE was kind enough to scan his, page by page.
Part 1 Cover and pages 1-9 2.3 MB PDF
Part 2 Pages 10-19 2.6 MB PDF
Part 3 Pages 20-29 2.8 MB PDF
Part 4 Pages 30-39 2.7 MB PDF
Part 5 Pages 40-55 4.3 MB PDF
|FM/AM-1500 Service Monitor Maintenance Manual 16.3 MB PDF|
FM/AM-1500 Service Monitor Complete
Maintenance Manual 8 MB PDF
This manual, unlike the one above, contains revisions, schematics, and even test fixtures and accessories. Considering the size and what's in it, this is a much better deal.
|FM/AM-1500 Service Monitor Operator's Guide 10.6 MB PDF|
|IFR FM / AM-1600S documentation:
|Photos courtesy of Joe Burkleo WA7JAW:
back bottom front on stand front left
front right front top (angled) top (down)
|FM/AM-1600S Operator's Manual 13.8 MB PDF|
|FM/AM-1600S Maintenance Manual 16.4 MB PDF scanned by Sam Reaves W3OHM|
|IFR COM-120 documentation:
|Click here for a photo of the COM-120A and COM-120B courtesy of Tracy N4LGH.|
|Click here for a photo of the rear panel of a COM-120B courtesy of Tracy N4LGH.|
|Click here for a 19.3 MB Zip file of COM-120A photos.
27 high-resolution pictures of a disassembled COM-120A, courtesy of Tracy N4LGH.
|Click here for a 11.6 MB Zip file of COM-120B photos.
16 high-resolution pictures of a disassembled COM-120B, courtesy of Tracy N4LGH.
|COM-120B Data Sheet 212 kB PDF|
|COM-120B Training Powerpoint file 3.1 MB PPT|
|COM-120C Operation's Manual 2.5 MB PDF|
COM-120C Maintenance Manual
Supplement 2.7 MB PDF
Supplement for the COM-120B Maintenance Manual that covers the COM-120C.
2968 Frequently Asked Questions 608 kB PDF
2944 Data Sheet 158 kB PDF
2945B Data Sheet 62 kB PDF
3500 Data Sheet 52 kB PDF
3500A Data Sheet 48 kB PDF
A7550 Spectrum Analyzer Service Manual 11.5 MB PDF
measurements using spectrum analyzers 874 kB PDF
Oriented towards the 239x series of equipment, but an interesting read regardless of what you have.
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This page initially created 30-March-2009 by splitting all of the IFR information away
from the Other Manufacturers page.
This web site, the information presented in and on its pages and in these modifications and conversions is © Copyrighted 1995 and (date of last update) by Kevin Custer W3KKC and multiple originating authors. All Rights Reserved, including that of paper and web publication elsewhere.