-Date-  -----Section------     -----File----- (all are updates unless noted as new) -----
======  ==================     ==========================================================
Nov 14  Motorola Test Sets     Added RTL4130A adapter for MSR2000 stations
Nov 14  IFR / Aeroflex         Added photos to the IFR1000 section
-2009-  ------ 2009 ------     -------------------------- 2009 --------------------------
Oct 30  Motorola / Spectra     New article: List of Spectra module (board) numbers
Oct 30  Motorola / Spectra     New article: Comparison of Spectra Old and New Boards
Oct 27  Motorola main page     New article: Overview of SM50/SM120 mobile radios
Oct 23  Motorola / MSR2000     Photos and additional material added    
Oct 15  Motorola main page     MSR2000 material split from the Mitrek/MSR page to its own index page
Oct 06  Motorola main page     New article: Activating the MaraTrac Remote Squelch Pot

Sep 21  Tech Index             New File: A Historical and Tech Overview of Tone Squelch Systems
Sep 20  Tech Index             New file: CTCSS DOesn't Fix Anything!
Sep 18  Tech Index             New file: CTCSS tone numbers are useless! (a tone chart)
Sep 13  Icom main page         New file: IC03AT Instruction Manual
Sep 08  Test Equip / Aeroflex  New files: IFR1500 Maintenance and Operator manuals, inside photos
Sep 02  Motorola / Quantar     Quantar and Quantro articles moved to their own new index page

Jul 29  ACC                    New article: ICOM IC-900/901 Band Unit Identification Explained
Jul 26  ACC                    New article: ACC Support for the Doug Hall RBI-1
Jul 24  Motorola / MSF         Added additional manual part numbers and descriptions
Jul 21  Motorola / R100        New article: R100 Overview
Jul 21  Motorola / R100        New article: R100 PL Disable
Jul 21  Motorola / R100        R100 stuff now has its own index page, moved from the main Motorola page

Jun 28  Motorola / MSF         Several new PDF files dealing with duplexer and TEE cable
Jun 11  Antenna Systems        New article: Six Meter Heliax Receive Filter

May 16  Zetron                 Added Model 30 instruction manual (with schematics)
May 02  Motorola / MaxTrac     New article: Radius M100/M2xx models and boards

Apr 22  Radio Shack            Added 277-1008 test amplifier schematic and de-emphasis mod info
Apr 22  Motorola main page     New file: L1158 and L1159 MRTI Service Manual
Apr 22  Daniels Page           New file: MT-2 VHF & UHF station manual
Apr 22  Antenna Systems        New file: Phelps-Dodge PD5042-1 VHF duplexer data (from Motorola)
Apr 12  Technical Info         Allied Electronics Data Handbook - 2nd edition (1958)
Apr 12  Technical Info         Allied Electronics Data Handbook - 4th edition (1964)
Apr 09  Astron                 Added RM-60A / RM-60M to the schematic library

Mar 30  Motorola / MSF         New article: Disabling HearClear on 900 MHz MSF5000 repeaters
Mar 28  Kenwood                New article: A list of Kenwood Radios, the software and cables needed
Mar 27  Kenwood                Added a table of Programming software for 900 MHz radios.
Mar 26  Kenwood                Kenwood main page: added more details on TK-431 and 941 radios.
Mar 22  Main Index Page        New file: Tower Lease Agreement DOC file
Mar 22  Constr / PL Filter     Updated NO6B schematic (parts values)
Mar 21  Motorola main page     New article: Identifying a Quantar station
Mar 19  Zetron Page            Zetron Model 35A Microconnect Operator's Manual (025-9044T)
Mar 15  Motorola / MSF         New file: SSCB Controls and Indicators PDF file
Mar 10  Motorola / MSF         New article: Adding DTMF On/Off Control to the 900 MHz NJ Repeaters

Feb --  Nothing Added Or Modified This Month

Jan 30  Motorola / MSF         New file: Interfacing an Analog station to an RLC controller
Jan 29  Motorola main page     New files: Several old transistorized dispatcher portable radio manuals
Jan 28  Motorola / MaxTrac     New file: 900 MHz MaxTrac Service Manual
Jan 28  Antenna Systems        New files: EMR Single and Dual Isolator Tuning Instructions
Jan 26  Other Manufacturers    New file: IFR 1500 Maintenance Manual
Jan 23  Antenna Systems        New article: Yet More Coaxial Cable Statistics
Jan 22  FCC Rules              Added 2008 edition, depreciated the 2007 copies (but are still there)
Jan 22  IRLP                   Clarified some details
Jan 20  VHF Engineering        Reorganized the page, added COR, CWID and power supply manuals
Jan 20  Radio Shack            Added some failure mode details to the PRO-2004 scanner section
Jan 15  Icom                   Reorganized the page and added details to the BC-35 failure mode
Jan 10  Yaesu / Vertex         Added VXR-9000 VHF and UHF repeater and FT-23 handheld service manuals
Jan 09  Kenwood                Added details on TK-431, TK-481, TK-941 and TK-981 900 MHz radios
                               Shrunk a number of PDF manual files, some by more than half.
Jan 08  Other Manufacturers    Added Triplett 630-5, 630-PL and 630-PLK VOM manuals
Jan 03  E. F. Johnson          Added service notes and RPI box information
Jan 02  Yaesu / Vertex         Added VX-1700 HF mobile manual
Jan 01  Astron                 Added SL-15 and 2412 information

-2008-  ------ 2008 ------     -------------------------- 2008 --------------------------
Dec 28  GE                     Added comments regarding the test set(s)
Dec 28  Yaesu / Vertex         Added FTR series repeater manual
Dec 27  Arcom page             New arcicle: Interfacing a weather receiver to an RC-210 controller
Dec 23  Motorola / MaxTrac     New article: DeskTrac Station Overview
Dec 18  Regency/Relm/Wilson    Added a few notes on the M100 and M400 scanners
Dec 16  Kenwood                Clarified some information on the various 900Mhz radios
Dec 14  VHF Engineering        Added several schematics and a note regarding a UK company
Dec 12  IRLP main page         Added info on Codecs, MOSFET info, KC6HURs web site and more
DEC 09  GE / MASTR II          New article: Station Control Module mod by WB2EDV
Dec 07  Motorola / RSS         Added additional details to the RIB article
Dec 01  Motorola / Micor       New article: Micor RX Conversion: 42-50 MHz to 50-54 MHz

Nov 23  Motorola / MSF         New article: Adding a Speaker to the PURC5000 Link Receiver
Nov 18  IRLP                   More details added on IP and hardware configuration
Nov 03  Motorola Mitrek-MSR    New file: MSR2K Jumper Tables

Oct 31  Motorola / MSF         New article: Inside the PURC5000 Link Receiver
Oct 30  Motorola Mitrek-MSR    New files: several scanned sections from a UHF MSR2000 manual
Oct 29  Other Manufacturers    New file: IFR FM/AM 1100S/A Maintenance Manual
Oct 28  Motorola Mitrek-MSR    New files: several scanned sections from a VHF MSR2000 manual
Oct 27  Radio Shack            New files: several additional weather radios
Oct 26  Motorola main page     Removed SpectraTAC info from Micor page, put into its own page
Oct 25  Motorola / Micor       New article: What's Inside the K1003A channel Element
Oct 24  Motorola               Added more information to the "Figuring out what you have" article
Oct 12  IRLP                   Added more network info (clarified node computer info)
Oct 07  MIdland                Additional info on the weather receivers
Oct 07  Motorola main page     New article: Quantar Enhanced Features without Enhanced Board
Oct 02  CAT controllers        New file: CAT700 controller manual

Sep 12  Antenna Systems        New file: DB Products DB-212 wiring harness diagram
Sep 11  Motorola / Spectra     New article: Spectra Hacks (BitBanging)
Sep 09  Yaesu-Vertex           New files: VXR-7000 Repeater Operations Manual & UHF&VHF Service Manuals,
                               FT-857/857D Technical Supplement Manual, programmer schematic

Aug 24  IRLP                   New section: Internet Radio Linking Project
Aug 17  Antenna Systems        New file: Wacom WP4941-7941 spec sheet (PDF file)
Aug 11  Antenna Systems        New files: downtilt.zip, patplot.zip, sidemount.zip 
Aug 02  GE main page           New article: GE Mastr III UHF Repeater Conversion to 440-450 MHz

Jul 30  GTX main page          New article: Remote Mounting of the GTX Mobile Control Head
Jul 21  GE main page           New file: GE Mastr III Parts & Accessories Quick Reference Guide
Jul 21  GE main page           New article: Ext. Controller Interfacing to GE Mastr III Repeater
Jul 21  GE main page           New article: GE Mastr III VHF Repeater Conversion to 144-148 MHz
Jul 21  GE main page           New article: GE Mastr III Module Band Decoder
Jul 20  Arcom page             New article: Improvements to RC210 & RC810 controllers
Jul 20  Motorola / MSF         New article: MSF5000 900 MHz Conversion
Jul 19  Icom page              Added 5 manual PDFs, including the 3AT and 03AT service manuals
Jul 13  GE LBI Index           Added about 50 LBI files that arrived on an anonymous CD
Jul 10  Motorola / MSF         New article: MSF5000 900 MHz Miscellaneous Adjustments
Jul 09  Main Index Page        Reworked the main index page - Kevin - W3KKC
Jul 08  Motorola / MSF         Interfacing Signals: added info on J900/J901 on TTRC

Jun 30  Antenna Systems        New files: Motorola VHF coaxial antenna PDF files
Jun 26  Antenna Systems        New article: Repairing DB4060/4062 duplexers
Jun 22  Motorola / MaxTrac     Added the GM300 accessories brochure, some info on the 
                               99-channel Ontario Hydro MaxTrac plus some details on 
                               the downloadable Maxtrac manual PDF file sections
Jun 21  Motorola / RSS         Added some text on and a photo of the real IBM async card
Jun 16  Motorola / MSF         New files: Low Power control Head manual sections
Jun 10  Motorola / MaxTrac     New article: Adding additional channels to the GM300
Jun 04  Zetron main page       New file: Zetron 748 Technical Manual
Jun 03  Antenna Systems        New file: DB-224 coax and element spacing calculations 

May 31  Computer Automation    New file: WX-1000 Digital Weather Receiver manual
May 27  Motorola / MSF         New article: Making the MSF5000 run without the PA
May 27  Motorola main page     New article: Numerical Parts Categories list
May 21  GE main page           New article: MASTR-III conversion to amateur freqs
May 21  Constr. Projects       New file: Simple Echolink interface
May 20  AEA main page          Updated contact info, added 144 MHz Isopole installation file
May 19  ACC main page          Added about 40 donated PDF files to this section
May 13  Com-Spec page          Added additional information on TP3200 and TP38 units
May 05  Motorola / MaxTrac     Added 5-pin plug info to Accessory Plug article
May 01  Kenwood                Updated the TKR-720 / TKR-820 repeater interfacing article

Apr 25  Technical Info         New files: Single-Supply Op-Amp Circuits, Op-Amp Design Reference
Apr 13  Motorola / MSF         New article: Adding an Internal Duplexer to one of the New
                                 Jersey 900 MHz MSF5000 repeaters
Apr 13  Motorola / MSF         New article: 900 MHz MSF5000 Experience (New Jersey repeaters)
Apr 13  Other Manufacturers    New file: Heathkit HM-2102 VHF/UHF wattmeter
Apr 12  Other Manufacturers    New file: Heathkit HM-2103 HF dummy load/wattmeter
Apr 11  Other Manufacturers    Added photo of CSI-32 community repeater controller
Apr 10  Motorola / Spectra     Spectra Control Head Ignition Control Jumpers
Apr 03  Motorola / MSF         Added HSO/UHSO reference oscillator manual section
                                 (this is the one in the New Jersey 896 MHz repeaters)
Apr 02  Technical Info         New file: FCC Class of Station Code list (FB2J, FB4, FB6L, etc.)  
Apr 02  Motorola / RSS         New article: Introduction to RSS and Radio Programming

Mar 29  Technical Info         Added Noise Figure Measurement applications notes  
Mar 27  Motorola / MSF         Added "Jumper Settings" section from the instruction manual
Mar 26  Antenna Systems        Added "HELIAX Coaxial Cable for Low Intermodulation Generation"
Mar 25  Hamtronics page        Added TA-451 Audio Frequency Response Modification article
Mar 20  Motorola / Mitrek-MSR  Added details to model numbers and a new downloadable manual
Mar 18  Motorola / RSS         Hex-Editing MaxTrac MDF for 900 MHz (added UHF)
Mar 15  Motorola / MSF         Removing Secure Board from MSF5000 Station
Mar 10  Motorola / MSF         New article: Adjusting EEPots
Mar 08  Motorola / Maxtrac     Added Desktrac microphone jack pinout information
Mar 04  Motorola / GTX         Added photo of portable battery and programming terminals
Mar 03  E F Johnson page       Added downloadable 8640/8644 and 8655 service manuals
Mar 01  Motorola main page     New files: MaraTrac VHF Low-Band Manual and Sales Brochure

Feb 24  Motorola / MaxTrac     Repeater Controller Interfacing 
Feb 13  Motorola / Spectra     Spectra Interfacing - added photo of SLN6435A matching xfmr
Feb 09  Motorola / MaxTrac     MaxTrac Microphone Cli-Click syndrome (added MaraTrac info)

Jan 28  Other Manufacturers    New file: IFR FM/AM-500A maintenance
Jan 24  Motorola / GTX         Added some relevant part numbers and software info
Jan 23  Main / Backup Power    Added links to some off-site articles
Jan 21  Motorola / MaxTrac     New article: Converting Low-band MaxTrac to 46-54 MHz
Jan 12  Antennas page          New file: Telewave pass/reject duplexer tuning (PDF)
Jan 10  Motorola / MSF         New file: digital station error codes (PDF)
Jan 10  Motorola / MSF         New file: analog and digital error and alarm codes (PDF)
Jan 09  Motorola main page     New article: Overview of the MaraTrac mobile radio
Jan 05  Motorola / Spectra     Miscellaneous Spectra Topics
Jan 04  Motorola / Spectra     Spectra Low/Mid Power Programming Cable
Jan 02  Motorola / MSF         Photo Tour of the UHF MSF5000 Station

-2007-  ------ 2007 ------     -------------------------- 2007 --------------------------
Dec 30  Motorola / Genesis     Added a bunch of new material
Dec 28  Motorola / Spectra     New article: Spectra Error Codes
Dec 25  Main / Backup Power    New section plus several articles
Dec 25  Main menu              Added Backup and Alternative Power section,
                                 now using Google for site searches
Dec 25  Motorola / MaxTrac     Logic Board Jumpers: added ignition control jumper/fuse info
Dec 21  Antennas page          New article: Tests of DCI VHF and UHF 4-pole bandpass filters
Dec 20  Rep. Equip. Suppliers  Added a link to RF Stuff Dot Com
Dec 12  Antennas page          Added the 1975 QST review of the DB4048 duplexer
Dec 09  Motorola / MSF         Putting a CXB SSCB into a CLB station
Dec 09  GE (Mastr II Stn)      Repairing a MastrII UHF Power Amplifier
Dec 08  Motorola / MSF         Photo Tour of the UHF MSF5000 Station
Dec 06  Motorola / MaxTrac     New information added to main page
Dec 04  Motorola / GTX         Manual power control of the GTX power amplifier
Dec 04  Motorola / GTX         Reorganization of GTX information onto its own page

Nov 28  Technical Info         New article: Motorola PL and DPL Codes
Nov 28  Motorola / Spectra     New article: Setting up and using Multiple Coded Squelch (MPL)
Nov 21  Other Manufacturers    New files: Ramsey COM3 service monitor, QT1, BN9, TT7 manuals
Nov 21  Kenwood page           New files: TM-G707 and TM-271 Mini-DIN / CTCSS decoder mods
Nov 16  Motorola / Spectra     New article: Intro to Spectra Radio Configurations
Nov 11  Radio Shack page       Reorganization of the PRO-2004, 5, 6 section
Nov 11  Radio Shack page       New file: PRO-2003
Nov 11  Regency page           New file: "Touch" K-500, TMR-8HL owner's manuals
Nov 10  Kenwood page           New file: TK-250/350 instruction manual
Nov 10  Radio Shack page       New file: Pro-2003 owner's manual plus a few other documents
Nov 10  Uniden page            New file: WX100 and WX500 weather receivers
Nov 10  Yaesu page             New file: VX10 owner's manual
Nov 09  Icom page              New file: R1 and R100 receivers
Nov 02  Astron page            Added a section on Linear Power Supply Design and Theory

Oct 30  Kenwood page           New file: TK-480/481 (handheld) Service Manual
Oct 26  Motorola / MSF5000     Added PURC5000 information in a separate thread	
Oct 21  Download menu          Added a couple of new files
Oct 21  Other Manufacturers    New files: IFR 1100S / 1100A maintenance, Tek 7L5 Spec. Anal.
Oct 20  Motorola / Spectra     New article: Control Head Interconnection boards	
Oct 16  Main menu              Updated the "Article Wish List" (removed a few items that 
                                 are now real aricles on the web site)

Sep 19  Motorola / Spectra     Main page additions and corrections
Sep 07  Motorola / Spectra     Spectra Interfacing
Sep 04  Kenwood page           New file: TM-271 service manual
Sep 02  Motorola / MSF5000     New article: Using the MSF5000 Power Amplifier Stand-Alone

Aug 31  Motorola / Micor       Conversion of Micor low-band exciter to 6 Meters
Aug 31  Motorola / Spectra     Spectra 900 MHz VCO Modifications
Aug 28  Motorola / Syntor etc  Added sources of Syntor X memory module programming
Aug 25  Motorola / Spectra     Recapping the Spectra radio (time-bomb capacitors)
Aug 20  Ritron page            Added model 455 repeater
Aug 20  Motorola / MaxTrac     Microphone hang-up mechanisms
Aug 16  Technical Info         Temperature compensation of TCXOs (Why spend $50...)
Aug 12  Radio Shack main       Additional info on weather receivers
Aug 12  Web site main page     Repeater Builder's Checklist article
Aug 09  Motorola / Test sets   New content added to the main page
Aug 08  Download main page     Several new files added 
Aug 08  Motorola / Spectra     New article: Spectra Desktop Station
Aug 07  Motorola / Spectra     Programming cable
Aug 06  Com-Spec / TS32        Major update to the TS32 hookup article
Aug 05  Motorola / Mitrek      Major correction in HLN4181 tone board article
Aug 03  Motorola / Spectra     Miscellaneous Spectra Topics
Aug 01  Motorola main page     RSS article
Aug 01  Motorola / MaxTrac     New article: MaxTrac RSS Choices

Jul 31  Motorola / Micor       New files: 45w UHF mobile PA deck documentation package
Jul 31  Motorola / MSF5000     MSF Photo Tour
Jul 31  Motorola / MaxTrac     GTX Info
Jul 29  Kenwood main page      Additional 900 MHz info
Jul 29  Motorola main page     Adding Analog Modulation to the Nucleus Transmitter
Jul 26  GE main page           New files on the LBI list
Jul 26  Humor main page        New file: How to sound like a lid
Jul 24  Motorola / MaxTrac     New article: 900 MHz VCO Extensions
Jul 21  Motorola / MSF5000     MSF RSS Programming
Jul 20  Motorola / MaxTrac     Manual Power Control
Jul 20  Motorola / MaxTrac     New article: VHF/UHF/800 MHz Model Info
Jul 19  Radio keys page        Additional info and photos
Jul 17  Motorola / MaxTrac     New files: GM300 service manual 
Jul 15  Other Manufacturers    New files: DSI 5600 counter, Waters phone patches, TPL amplifiers
Jul 13  Motorola / MaxTrac     New article: Logic Board Jumpers
Jul 13  GE main page           New article: TS64 into a Mastr II station
Jul 09  Antenna Systems        New file: Decibel Products "About Combiners"
Jul 09  Motorola main page     New section and files: MX handhelds
Jul 04  AEA main page          Added PK-88 information
Jul 04  Motorola / MaxTrac     New article: 900 MHz Model Info
Jul 03  Motorola / Saber       Main page updated