Philips FM92E Conversion to 6 Meter:
Files Associated with this Project:
6m_con1.doc
6m_con1.pdf =
Part 1 Main documentation to convert Philips FM92E to 6
Meters. Note: File 6m_con1.doc
is approximately 11Mb & file 6m_con1.pdf is approximately 2 Mb
6m_con2.doc 6m_con2.pdf = Part 2 Support documentation to convert Philips FM92E to 6 Meters. Note: file 6m_con2.doc is approximately 1.5Mb & file 6m_con2.pdf is approximately 1 Mb
6M_con3.htm = Part 3 Documentation to convert Philips FM92E to 6 Meters. Weekly Procedures
6m_con4.htm = Part 4 Documentation to convert Philips FM92E to 6 Meters. Version Amendments.
6m_fre.rtf = Frequency list of channels of EPROM's below.
Fpp.zip = Software for generating channel verses frequencies for Philips FM92E for 6 Meters.
EPROM’s
for 6 Meters transmitter & receiver after modification:
6m1loc.bin = EPROM for Philips FM92E with Local Head.
Hardware Code: = 9502 9221 0000 25.0KHz channel, 25W & 10.7 MHz IF.
Software Code = 110400200000000 Check Sum = C2FF
6m2rem.bin = EPROM for Philips FM92E with Remote Head.
Hardware Code: = 9502 9222 0000 25.0KHz channel, 25W & 10.7 MHz IF.
Software Code = 110400200000000 Check Sum = 09FF
6m3loc.bin = EPROM for Philips FM92E with Local Head
Hardware Code: = 9502 9223 0000 25.0 KHz channel, 25W & 21.4 MHz IF.
Software Code = 110400200000000 Check Sum = B8FF
6m4rem.bin = EPROM for Philips FM91E changed to FM92E with Remote Head
Hardware Code: = 9502 9224 0000 25.0 KHz channel, 25W & 21.4 MHz IF.
Software Code = 110400200000000 Check Sum = FFFF
6m5loc.bin = EPROM for Philips FM92E with Local Head.
Hardware Code: = 9502 9225 0000 12.5 KHz channel, 25W & 10.7 MHz IF.
Software Code = 110400200000000 Check Sum = AAFF
6m6rem.bin = EPROM for Philips FM92E with Remote Head.
Hardware Code: = 9502 9226 0000 12.5 KHz channel, 25W & 10.7 MHz IF.
Software Code = 110400200000000 Check Sum =
6m7loc.bin = EPROM for Philips FM92E with Local Head.
Hardware Code: = 9502 9227 0000 12.5 KHz channel, 25W & 21.4 MHz IF.
Software Code = 110400200000000 Check Sum = 2FFF
6m8rem.bin = EPROM for Philips FM92E with Remote Head.
Hardware Code: = 9502 9228 0000 12.5 KHz channel, 25W & 21.4 MHz IF.
Software Code = 110400200000000 Check Sum =
EPROMs for testing
FM92E 66-88 MHz transmitter & receiver before modification.
6mtest1l.bin = EPROM for Philips FM92E with Local Head.
Hardware Code: = 9502 9221 0000 25.0KHz channel, 25W & 10.7 MHz IF.
Software Code = 110400000000000 Check Sum = AFFF
6mtest2r.bin = EPROM for Philips FM92E with Remote Head.
Hardware Code: = 9502 9222 0000 25.0KHz channel, 25W & 10.7 MHz IF.
Software Code = 110400000000000 Check Sum = F6FF
6mtest3l.bin = EPROM for Philips FM92E with Local Head.
Hardware Code: = 9502 9223 0000 25.0KHz channel, 25W & 21.4 MHz IF.
Software Code = 110400000000000 Check Sum = ADFF
6mtest4r.bin = EPROM for Philips FM91E converted to FM92E with Remote Head.
Hardware Code: = 9502 9224 0000 25.0KHz channel, 25W & 21.4 MHz IF.
Software Code = 110400000000000 Check Sum = F4FF
Fpp.zip = Software for generating channel verses frequencies for Philips FM92E for 6 Meters. NOTE: Still some errors.
NOTE: You must determine what IF your FM92E
is using. This will determine what EPROM to use. The IF
frequency is normally located on the side panel of the VCO under RF/BW.
It will be either 10.7 or 21.4 MHz.
Philips
FM92E Schematic Diagrams:
6M-Rx-L.bmp FM92E Receiver Left Diagram
6M-Rx-R.bmp FM92E Receiver Right Diagram
6M-Tx.bmp FM92E Transmitter Diagram
Philips FM900 Schematic Diagrams:
key.jpg
FM900 Mounting Bracket Release Key
12-5kHzl.zip FM900
12.5Khz Link Modification
Local-hd.zip FM900 Local Head Circuit
Rem-hd.zip FM900
Remote Head Circuit
Rem-inte.zip FM900 Remote Head Interface Circuit
Mics.zip FM900 Microphone Circuit
Synth.zip FM900 Synthesiser Circuit
Syn-ccon.zip FM900
Central Control Circuit
UHF-Rx.zip FM900 UHF Receiver Circuit
UHF-TxPA.zip FM900 UHF
Transmitter PA Circuit
VHF-Rx.zip FM900 VHF Receiver Circuit
VHF-TxPA.zip FM900 VHF
Transmitter PA Circuit
= First Page of 6m_con.doc/pdf: =
Note: This file is updated on a continuous basis. Now Version 4.2
1: Introduction to Project:
This paper is a rough guide for the conversion of a Philips FM92E band transceiver to 6 meters. This project is for the Central Coast Amateur Radio Club’s Tuesday Nite Group. The information contained within this document is derived from other Australian 6 meter conversion projects plus our own experimentation. The outcomes of this document, is to enable the easiest method to perform the conversion project. The project will take approximately 12 hours for a component technician or longer for other amateurs. The document should be able to be used by external amateurs to the club who intend to embark on this project.
On the first nite it will be determined if conversion members need a soldering refresher course and, if there are enough numbers to warrant the soldering refresher course, then the Tuesday Nite Group will conduct such a course to enable members to be able to complete this conversion. It is estimated that the Tuesday nite group will take approximately 3 months to complete this project. After each Tuesday nite, this documentation will be updated and uploaded to the VK2AFY web site, so look at the version number above. This should result in the experiences of members being included into this document.
The “Tuesday Nite Group” convenes each Tuesday nite of the month from 7:30pm till 9:00pm. The philosophy and schedule for the group is promulgated on the vk2afy.dyndns.org web site under Tuesday Nite Projects & development - Philosophy. The meeting Schedule is under the heading – Meetings.
The EPROM for the Philips FM92E has been setup for either local or remote heads. The number of channels and the frequency range of the EPROM is 77 channels and from 52.525Mhz to 53.975Mhz. The frequency range has been setup to transmit & receive on the FM allocation within the 6 meter band. There are repeater channels, reverse repeater channels and repeater simplex channels. EPROM’s will be supplied to club members who are on the course. At the end of this document is information on programming the EPROM, for external users who intend to program their own EPROM. The software for setting up the firmware is also located on the web site.
This document [6m_con.doc or 6m_con.pdf], the 6 meter frequency verses channel list [6m_fre.rtf] and the EPROMs [6m?loc.bin, 6m?rem.bin, 6mtest?l.bin, 6mtest?r.bin etc] are located on the VK2AFY web site at http://vk2afy.dyndns.org/6mconv/6mfiles.htm. Go to the projects section, and click on the FM92E Conversion to 6 meters. These files will also be available on the main clubs computer, under the directory “D:FM92E Conversion to 6 meters”. You will be able to transfer them to your USB memory stick, or print out the documentation on the club’s duplex laser printer; You can also burn a CDROM or DVD with the files.
At the end of the 6 meter conversion, Bruce VK2ZAD will be conducting 6 meter antenna building nights. The 6 meter antenna will be a companion for the Philips FM92E we has just converted to 6 meters. He will be supplying a goods required paper – for building the antenna. The building of the antennas will be conducted on the following Tuesday nights, after the conversion is finished.
The FM92E conversion to 6 Meters should start on
Information for this conversion has been gleaned from and thus acknowledgements to Amateur Radio May 1997, Amateur Radio June 1997, VK2KFJ, VK2TMF, VK2TPH, VK6ZTJ, VK4KTP, VK4KCS, VK2XMD, VK1 Technical Group, VK3GK, VK3BYY, Blue Mountains Amateur Radio Club, SKINNY'S HOME OF RADIO, VK7ZRO plus other Australian amateurs. The information has been collected over 15 years in anticipation to conducting this conversion.
If you need to add extra information or change this document, please send the information to Rod at vk2dot@iinet.net.au and we will insert or change your information.
PART 1 INDEX:
1. Introduction to Project:
2. Index
3. Initial Check:
4. Speaker Socket Change:
5. Initial Pull-Apart:
6. Board Layouts:
7. EPROM Change:
8. VCO Change:
9. VCO Tune:
10. Rx RF Amp/Mixer Change:
11. Rx RF Amp/Mixer Tune:
12. PA Changes:
13. PA Adjustments
PART 2 INDEX:
1. Index
2. Files associated with Project
3. FM92E Test EPROM 68-88 Mhz Channel verses Frequency List:
4. 6 Meter FM92E FM Frequencies
5. Philips FM92E Background:
6. Basic specifications:
7. A little History:
8. Just a few notes, hints, tips and tricks which don't fit anywhere else:
9. Cleaning up an FM-900 to make it look good.
10. CCARC Equipment Supplied:
11. CCARC Equipment Required:
12. Faults:
13. Using the Club’s De-soldering Station:
14. Remove the annoying beep from the FM92E:
15. Disable "scan inhibit" with microphone off-hook:
16. Emergency "umbilical cable" replacement:
17. Fixing "tinny" transmit modulation by adjustment:
18. Fixing "tinny" transmit modulation by microphone modification:
19. Fixing "tinny" transmit modulation by microphone modification:
20. FM92E Rear Connectors:
21. 15 pin cable:
22. Philips FM 900 Series Service notes:
23. Making my FM92 sound better: (transmit audio)
24. Tuning up an FM900:
25. FM92R Source Listing:
26. FM900 12 Digit Hardware codes:
27. FM900 Field Personality Programmer (FPP) Guide:
28. Repairing FM92 VCOs
29. 6 Meter Antenna:
30. Philips FM91 Schematic Diagrams
31. 6 Meter Repeaters:
32. Adjusting Ferrite Slugs:
PART 3 INDEX:
1: Weekly Procedures
PART 4 INDEX:
1:
Version Amendments:
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