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Welcome to MASTR2.COM
The 'Mastr' Index of GE Conversion Information
Maintained by Kevin Custer WJ8G
Over the last several years the company originally known as the Land Mobile Radio Division of General Electric Company has been sold several times. The names have included General Electric, Ericsson, Com-Net Critical Communications, M/A-Com, Tyco and now Harris. Just to keep things simple on this page we are going to use the name GE exclusively, no slighting or denigration of the current owner is intended.
There are three mailing lists that cover GE radios. The first, YahooGroups GE, covers anything GE, the second, YahooGroups GE-MastrII covers just the Mastr-II series, and the third is for the Mastr-III series.
If you are at all serious about any of the GE radios I suggest that you join one or more of the mailing lists.
For quick access to model-specific information use these in-page jumps:
Century II Custom MVP Delta Exec II Info Frequency Agility LBIs
Manuals & Technical Info Mastr II Mobile and Station Mastr II Mobile
Mastr II Station Mastr III Station Mastr Pro MLS Mobile Suppliers
Monogram MPD MPA M-RK MVS PCS Phoenix & Phoenix SX
Rangr 220 MHz Conversions Test Sets and Tuning Tools Trivia & Misc.
We have very little information on the Mastr IIe or III series.
Would someone like to write an article or two on them?
Technical Information:The "Mastr" list of LBIs Over 2 gigabytes of free downloadable PDF'd GE Tech Manuals
Currently stocked manuals can be ordered from the Customer Care Center at 800-368-3277 or call the Publications department directly at 434-832-6592.
Information applicable to both the Mastr II Mobile and Station:
|Combination number decoder page for the Mastr II An offsite page that will decyper your combination number into general information about your radio. By Dave Cochran - NØTRQ|
|The GE Mastr II email list server For people seeking information on GE Mastr II's|
GE Crystal Information
A 12 page PDF file about 500 KB, by Doug Bade KB8GVQ
This is a PDF of all GE crystal formulas in the Service Parts Book.
|Basic GE Mastr II ICOM information Basic differences between EC, 5C and 2C (with pictures).|
|GE Mastr II ICOM information Everything you wanted to know about the GE ICOM's (Hall Electronics offsite link)|
|Why should you spend $50 to re-crystal a channel element or ICOM? by Kevin Custer WJ8G|
|A schematic of the exciter audio "blob" Donated by A. Nony Mous|
|A cleaner schematic of the exciter audio "blob" above Redrawn by Robert Meister WA1MIK|
|A Mastr II S-Meter Circuit By Andy Kadvan KA8R from an old issue of ACC notes (see the ACC page at this web site)|
|A crystal frequency calculator for the Mastr II A downloadable Excel spreadsheet from John M. Kester KD6FVA|
|Squelch modification for the Mastr II A modification for making the Mastr II squelch work better by Kevin Custer and Scott Zimmerman|
|Installing a TS-64 into a Mastr II station A photo article based on original information from Doug Sharp K2AD.|
GE Mastr II Bandsplit Modification
Converting a 450-470 radio to 420-440 Mhz by Matt Lechliter W6KGB.
While the text was written for a station the instructions will work for a mobile as well.
|Help!! My UHF Mastr II self quiets after conversion By M. Scott Zimmerman N3XCC|
|Help, my Mastr II® has lost receiver sensitivity! Some Mastr II front end helical castings grow internal whiskers and short themselves out|
Mastr II intermittent sensitivity
By Joe Szczech, Jr. K1IKE
An issue with Mastr II front end helical coils that break loose from the casting.
Mastr II I-F alignment procedure
By Patrick M. Conway WA6JGM
IF alignment for Mastr II, Exec II, and Custom MVP radios.
Identifying UHF PA deck components
Donated by A. Nony Mous
A table of part numbers that will help identify what range a PA deck was made for.
Technical Services Memo on substituting the UHF PA transistors
Donated by Darrell Manning KI4BST
The RF power transistors used in the 4-transistor PA deck, part number 19A134171P2 (similar to SGS-Thompson SD1366-07) are no longer available. This writeup explains how to use Motorola MRF646s instead. It requires swapping 16 capacitors (or paralleling across them).
|Multiple comment threads over the years on both the GE Mastr II and the repeater-builder yahoogroups have pointed out that the earlier UHF GE Mastr II PA deck had a failure problem. The Z-Matcher was the solution to this (see the articles below). Installing an isolator at the PA output cured the problem(s) in all cases. The best solution is to install a Z-Matcher AND an isolator. Make sure that the isolator load is large enough, and always follow an isolator with a pass cavity. An article about the GE Z-Matcher can be found here. Additional information can be found in the Antennas section of the repeater-builder web site.|
|From the repeater-builder yahoogroup:
Any time I see someone complaining they are unable to get rated
sensitivity from a 150.8 to 174 MHz Mastr II receiver, I find the fix
is usually correcting a low Local Oscillator injection level. The easiest
way to insure you get good sensitivity when using a commercial split
receiver on 2M is have the crystal company calculate and build a crystal
for high-side injection. This allows the local oscillator and multiplier
chain to work inside its intended range without changing any components.
Otherwise, if you have a low-side injection crystal you'll have to do some
mods to get the injection level up.
It's a lot easier to just use high side injection. And note in the previous paragraph that the writer said "crystal"... The crystal is inside the ICOM, and you will want to read the ICOM recrystalling article above.
Mastr II Station Conversion Information:
If your station conversion involves changing from from carrier to tone squelch (or digital
tone squelch), or from tone squelch (or digital tone squelch) to carrier squelch then you
need to change several jumpers inside the radio AND on the 10vDC regulator card. Don't
forget the regulator card jumpers! If you do, you will be chasing your tail for days!
Product Code file
#S3 - cracking the combination number on the later generation Mastr II Station cabinet
158 kB PDF
This is a "Rosetta Stone" document that will help you figure out what you have when you have a Combination Number that starts with "S3" followed by a "D", "S", "P" or "V" followed by an "O" or a "C". The first page is the translator for the combination number. The second page will help you determine which LBIs are the "top level" ones for your station, and from them you can find all the lower level LBIs. From those you can build up a complete manual identical to what was shipped with the station.
Product Code file
#67 - cracking the combination number on the earlier generation Mastr II Station cabinet
302 kB PDF
This is a "Rosetta Stone" document that will help you figure out what you have when you have a Combination Number that starts with "D", "S", "P" or "V" followed by an "O" or a "C". The first page is the translator for the combination number. The second page will help you determine which LBIs are the "top level" ones for your station, and from them you can find all the lower level LBIs. From those you can build up a complete manual identical to what was shipped with the station.
If your station was shipped with multiple receivers you will need Product Code file #75.
If your station started out life as an IMTS station you will need Product Code file #22.
The NHRC-M2/SC Repeater Controller Interface Board
for General Electric Mastr II Stations from NHRC (offsite link)
A really handy board that plugs into the GE station card cage and allows a VERY clean interface method.
GE Mastr II Station Conversion Info
from Joseph Hogan W4XE
Some writeups that Joseph Hogan W4XE put together for the Northern Alabama Repeater Association. Topics include Mastr II station Basics (includes a photo tour, is well worth reading!), the IDA Panel, battery backup, Polyphasers, CAS and RUS buffering, and the repeater transmitter CG tone encoder.
|Mastr II Station to Repeater Conversion By Don Woodward KD4APP|
GE Mastr II Station Power Supply Safety Note
By John Holden N7IQV
If you are running a "real" GE factory supply you need to read this writeup on how to fix a design / manufacturing error.
|How to add a PTT disable switch to a Mastr II 10vDC Regulator / Station Control Module By M. Scott Zimmerman N3XCC|
Another take on the above that uses a single switch for both forced transmit and transmit
disable (with photos)
By Chuck Kelsey WB2EDV
No matter whose conversion article or controller interfacing article you use you need to do one of the two above mods to your 10vDC regulator card. It just makes debugging and maintenance a lot easier.
Pion & Simon Electronics
Mastr II Station Controllers that plug right in to the GE card cage! And they really work
Don't forget the regulator card jumpers! The Pion & Simon documentation mentions them but some folks still overlook them.
|Interfacing the Mastr II Station to an ACC 850 Repeater Controller 3.15 MB PDF file. Scanned from an old issue of the ACC Notes, developed by the folks at ACC|
|Interfacing a GE Mastr II Base Station/Repeater to an Scom 7K controller An off-site link to a PDF at the Scom web site - Scroll down to the section titled "Getting the most from your S-COM products" section and look for "Interfacing a GE Mastr II Base Station/Repeater to a 7K". The actual file that you will end up downloading is titled 7KGEM2BS.PDF and is about 19 KB. Well worth reading, even if you end up with some other companies controller.|
|Comments on the GE Mastr II Power Amplifier, and why they die By Fred Seamans W5VAY|
|An experience repairing a GE Mastr II 100w UHF Power Amplifier By Robert Meister WA1MIK|
|Repairing the GE Mastr II Station Power Amplifier By Ray Vaughan KD4BBM|
|Using the 40-50 MHz 50-100w PA as a Linear Amplifier By Chuck Schreiber K9VPE|
|A photo of the intermittent and continuous Mastr II RF Power Amplifier heat sinks|
This is the manual for the 19D432500G1 / G2 / G3
standard 10-bit dip-switch style Mastr-II Channel Guard board - LBI-31056 Version G
Additionally, as a shortcut, here is the tone table (see the lower right corner) 123 kB (note that "X"-marked bits are the open switches!)
1) The G1 board is the encode-decode board,the G2 is encode-only, G3 is decode-only.
2) The G1 board is either decoding or encoding, it can't do both at the same time. Most of the repeater conversions cut the changeover line so that the board stays in decode mode. If you need both then you will need to add a separate encoder.
3) The brand of dip switch that GE used is notorious for not making contact the first time they are closed after being open for a while. If you place one of these boards in service and change the tone and it doesn't seem to "take", rock each individual switch that you changed a couple of dozen times or so and check the tone again. In some cases you may end up changing the DIP switch.
Click here to see a photo showing where the Channel Guard boards are placed in the station.
|GE made a proto-board, or perf-board, that was designed to plug into the control shelf. If you can find a source, you want to locate part number 19D417941G1. It's very useful - even if all you want to do is make up a paddle board for connecting external equipment to a base or repeater.|
Mastr II Mobile Conversion Information:
Product Code file
#61 - cracking the combination number on the standard Mastr II mobile housing
215 kB PDF
This is a "Rosetta Stone" document that will help you figure out what you have when you have a Combination Number that starts with "MC" or "MX". The first page is the translator for the combination number. The second page will help you determine which LBIs are the "top level" ones for your radio, and from them you can find all the lower level LBIs. From those you can build up a complete manual identical to what was shipped with the mobile.
If your mobile radio is in a double-high housing (where the Combination Number starts with "EC", "EX", "EJ" or a "EY", sometimes called the "E" series) you will need Product Code file #65. Click here for a photo of an "E" housing.
If your mobile radio has dual front ends you will need Product Code file #69.
|Step-By-Step GE Mastr II® Mobile Duplex Conversion by Kevin Custer W3KKC|
|GE Mastr II® Mobile Conversion Information page by Kevin Custer W3KKC|
|Custom Built Mastr II Mobile & Station Repeater Conversions from Scott Zimmerman N3XCC|
|NHRC Repeater Controllers made just for the GE Mastr II By NHRC, Simply plugs in!|
|GE Mastr II® Infosite By Jeff Otterson, and NHRC (offsite link)|
|Oscillator/Multiplier modification for the VHF Mastr II A mod for improved 2 meter sensitivity by Jeff DePolo and Kevin Custer|
|FM'ing the Phase Modulated Mastr II Converting the PM Mastr II to true FM Modulation by Jeff DePolo WN3A|
|Mastr II Mobile Power Amplifier considerations for reliability Modifying the Mastr II PA by Ray Vaughan KD4BBM|
|GE Tech Memo on replacing the output transistors in a Mastr II UHF By David Hopper WD4JKH|
|The elimination of spurious emmissions in early Mastr II VHF PA decks By George Burton K7WWA|
|Mastr II UHF mobile modifications By Paul Lorona KB6MIP (offsite link)|
|An informative writeup on GE Mastr II cables, with part numbers, and connector repair info|
|S.E.I.T.S.Mastr II Information (offsite link)|
|WX7Y's Mastr II Duplex Modification (offsite link)|
|W4XE's Mastr-Pro and Mastr II Information (offsite link)|
|NW6H and WB6ZSU's Mastr II to TNC Connection Chart (offsite link)|
Mastr II Miscellaneous:
|How to remove the second front end in a dual front end (DFE) mobile By Scott Zimmerman N3XCC|
|Painting a GE Mastr II Mobile With Paint That Almost Matches... By Phil Heck KE3EI|
|GE Mastr II PLL Highband Exciter Manual - LBI-30398 Courtesy David Hopper WD4JKH|
|Duplex Isolation Curves for highband TX with PM vs. PLL exciter (from GE) provided by Jeff DePolo WN3A & Dave Karr KA9FUR|
|The Mastr-II Aux Receiver (LBI-30766L) Includes the 19D417546G7 and G8 and antenna matching unit 19C321150G1 and G2 1.13 MB PDF file, 28 pages|
|Converting a Mastr-Exec II and a Mastr-II to 900 MHz By Gene Colson W7UVH - a 10.5 MB PDF of a 7 page article from CQ VHF June 1999|
|Another scan of the 900 MHz Mastr-Exec II and Mastr-II article|
Mastr II Highband to 220 MHz.Conversions:A definitive guide to GE Mastr II 220 Rx conversions. By M. Scott Zimmerman N3XCC
Mastr II Mobile Suppliers:Hamblin Communications Supplier of GE Mastr II mobile radios and parts
Mastr III Station Information:Product Code file #SX - cracking the combination number on the standard Mastr III station 215 kB PDF
Mastr Executive II Information:Adding CTCSS (Channel Guard) encode/decode to the Mastr Exec II By Stewart Rabinowitz KE5UT 56 kB PDF
Mastr Professional Information:
Product Code file
#31 - cracking the combination number on the Mastr Pro mobile housing
250 kB PDF
This is a "Rosetta Stone" document that will help you figure out what you have when you have a Combination Number that starts with "M" or "S", followed by "T", "A", "E", "U" or "J". The first page is the translator for the combination number. The second page will help you determine which LBIs are the "top level" ones for your station, and from them you can find all the lower level LBIs. From those you can build up a complete manual identical to what was shipped with the station.
file #32 - cracking the combination number on the Mastr Pro Station cabinet
352 kB PDF
This is a "Rosetta Stone" document that will help you figure out what you have when you have a Combination Number that starts with "DM", "PM" or "VM". The first page is the translator for the combination number. The second page will help you determine which LBIs are the "top level" ones for your station, and from them you can find all the lower level LBIs. From those you can build up a complete manual identical to what was shipped with the station.
|KA1OKQ's Modification of the Mastr Pro ER-41-C Receiver to 220 MHz|
|WB4TUR'sMastr Pro Page|
Delta Information:CAUTION: DON'T LET THE SMOKE OUT !
|Anybody want to contribute a few Delta, Delta S, or Delta SX photos? (exterior and interior)|
|GE Delta Information by Dave Kaar KA9FUR Converting and programming the Delta series radio (offsite link)|
|More GE Delta Information from a group of New England hams (offsite link)|
|Anybody want to contribute a few photos? (exterior and interior)|
|Anyone what to do an overview article?|
Converting the low-band GE Rangr
to 6 meters
By Gary L. Peterson, NZ5V
(a work in progress)
When using the TQ2310 Suitcase Programmer (LBI-31229) to program Rangr radios refer to LBI-31630.
MLS and MLS-II Information: (sometimes referred to as the MLS-1 and MLS-2)There is a yahoogroup oriented towards the MLS at http://groups.yahoo.com/group/GE_MLS. Note that it's "GE(underscore)MLS".
An Overview of the MLS Mobile Radio by
Robert Meister WA1MIK.
Comparison with the GE MLS-II models. Photos, features, etc. Please read the MLS-II Overview (below) first.
An Overview of the MLS-II Mobile Radio by
Robert Meister WA1MIK.
Model numbers, comparison with the Motorola MaxTrac radios, photos, features, etc.
Replacing MLS-II Mobile Radio Power Supply Caps by
Robert Meister WA1MIK.
If your radio has an annoying 100 Hz hum coming out of the speaker, this may be the fix for it.
TQ-3342 Programming Software Guide
This is the instruction manual for the MLS-II programming software, direct from Ericsson.
|The MLS was a synthesized mobile that used a PROM chip to hold the frequency information. Programming the PROM chip takes specialized equipment that is not too common. Anybody want to do a programming article?|
The MLS-II is programmed by PC software, a RIB, and a connection cable. Anybody want
to do a programming article?
Repeater-Builder does not have any programming software. It can probably be found "out there" on the web; better yet, ask on the the GE mailing list.
From a private email: GE had a problem with electrolytic capacitors failing and leaking, especially in mobiles in hot parts of the country (like southern Texas in the summer). Many GE mobiles (including the MLS series) had several electrolytic capacitors on the sloping front panel boards. When these leaked the corrosive electrolyte would eat up the copper traces, including the copper plating in the pass-through holes in the PC boards (the plating in the holes was too thin). In most cases the boards were just replaced. The traces on the boards could be repaired with 30 or 32 gauge wire soldered onto what was left of the traces but the only cure for the holes was to insert a piece of thin wire in each plated hole and solder both sides. When you replace the caps you will probably want to use caps with a a higher temperature rating.
MPD Information:The MPD came out around 1984 and was dropped around 1989.
|Anybody want to contribute a few photos? (exterior and interior)|
|Anybody want to contribute some information on the series?|
MPA Information:The MPA came out around 1988 or 1989 and was dropped in 1996. It was the successor to the MPD. It is a programmable radio.
|Anybody want to contribute a few photos? (exterior and interior) and some information on the series?|
|How to Use the M-PA Radios on the 902-928 MHz
Amateur Band 168 kB PDF By: Mark A. Cobbeldick KB4CVN
This is a compellation of the experiences of long-term efforts by several hams, including: Doug Bade KD8B (Creator of the modified software to support 902-928 MHz and dozens of hours of testing), Gary Peterson NZ5V (Reviewing the data and testing methods) and John Belstner W9EN. This information applies equally to the following radios: M-PA, MTL & P400. The GeNet 900 model of the MTL is not supported due to the modem/clock differences.
|Anybody want to contribute a few photos? (exterior and interior) and some information on the MR-K series?|
|A schematic of the MR-K programming cable 26.1 kB GIF|
MVS Information: Front panel photo 257 kB JPG
|Anybody want to contribute a few more photos? (exterior and interior)|
|Most of the MVS radios "out there" have 16 channels. Some have only 2, and a very few
The MVS uses the TQ-3310/TQ-3370 programming interface (RIB) and the TQ3315 (p/n 19B801417P4) programming cable, and programs through the microphone jack.
There is very little MVS information in amateur radio circles - anybody want to write a programming article?
Repeater-Builder does not have any programming software. It can probably be found "out there" on the web; or better yet, ask on the GE mailing list.
|The MVS implements the tone squelch mic clip hangup feature by using a microphone that has a reed switch mounted inside the back of the microphone case, and a permanent magnet mounted in the GE-supplied mic clip that is mounted on the dashboard. When the user lifted the microphone out of the clip the reed switch changes the receiver mode from CG mode to carrier squelch mode. The microphone clips with the built-in magnets are almost impossible to find in the second-hand marketplace. Some have had luck making a hangup clip with a magnet. Others have added a slide switch to the microphone case. Fortunately you can disable the hangup feature in the programming software.|
|The LBI sections you will need to build the manual for your MVS will depend on if
you are a user or a maintainer and if it is VHF or UHF. The list below is in LBI number
sequence. Users will need only #7. Bench techs will need numbers 4, 5, 12 and 15 plus
1, 2, 3, and 6 for VHF, and 8, 8, 9, 10 and 11 for UHF. Remote mount (i.e. trunk mount)
radios will need #13 added to the list. Desktop bases will need #14 added.
|VE3FYN has some information here. The manual he offers for download is the LBI-31919E manual above.|
|KD4BBM has some notes on the MVS as well.|
|Ralph Hogan W4XE has some good MVS notes, some photos, interfacing information and pointers.|
|Converting a VHF MVS radio to 220 MHz by Matt Krick K3MK. This is a 7.5 MB PDF file.|
A few notes on programming the MVS:
If your turn on a new-to-you radio and get an E0 error that means that the receive synthesizer is unlocked. An E1 error indicates the radio is not programmed. Both can be caused by a missing (or blank EEPROM - it may have to do with which fault the CPU catches first. Many used radios have been found with missing EEPROM chips - the right way to deprogram a radio so the new owner can't just plug and play is to over-write the department frequencies with new channels programmed as receive only (likely candidates are the 7 weather channels for VHF, or the FRS channels (receive only) for UHF).
An E3 error indicates no communication with the front control panel.
All of the error codes are defined in LBI-31926.
The programming software is a DOS application and you will need real DOS (or the DOS side of Win 95/98/ME), a real serial port and a TQ-3370 or P-96-A MVS programming cable. I believe that the cable can be made from an old IDE hard drive cable. The software comes in versions versions 1.1, 2.2 and 3.0. Once you program a radio with a higher version you can't go back to the older version.
Each channel will have entries for TX, RX, CG TX, CG RX, STE TX and CCT.
This translates to transmit RF frequency, receive RF frequency, transmit tone frequency, receive tone frequency, STE (y/n), and a numeric value for CCT.
STE means Squelch Tail Eliminator. Turning it on causes the transmitter tone encoder to invert the phase of the tone when you release the PTT, and keeps the transmitter on the air for about 100-200 mS. This mutes the receiver audio on the other end BEFORE your transmitter goes off the air, resulting in no squelch tail (some folks call it the squelch crash). Motorola calls this same system "reverse burst". It's EXTREMELY rare that you would want to turn STE TX off.
CCT is the Carrier Control Timer which is GEs name for the transmitter timeout timer. It turns the MVS transmitter off after a certain period, which is normally set between 60 and 90 seconds. This prevents locked-up repeaters and cooked mobile transmitters when (not if, when) the user sits on the microphone.
A few notes on the MVS firmware, from a comment thread on the the
GE mailing list:
If you end up with a MVS that was "deprogrammed" by pulling the wront chip (the firmware chip instead of the EEPROm chip) you will need to get a new formware chip. The older logic boards use the 87C64-20 chips and the newer logic boards use the 87C257 chip. The firmware images are "out there". The funny thing is that if the EEPROM is still there, once the firmware PROM is put back in one of these "depreogrammed" radios it will come back working on the original frequencies programmed and on the last channel and volume setting selected.
Century II Information:Anybody want to contribute a few photos? (exterior and interior)
Custom MVP:The Custom MVP (commonly called the MVP) is essentially a dash-mount low power Mastr II.
|Step By Step GE Custom MVP Conversion Site: By Kevin Custer W3KKC|
|GE MVP Bandsplit Modification By Matt Lechliter W6KGB|
|MVP to Repeater Conversion By Bob Dengler NO6B|
|Installation instructions for Parkinson RP3A Repeater-Controller with GE UHF MVP mobile radio 580 kB PDF file.|
|WB6RFW's GE MVP Radio Modifications|
|A VHF MVP/Exec II 222 MHz Conversion From Southern California's Condor Connection|
|UHF MVP TX and RX Tuning Instructions By Bob Dengler NO6B|
|Tune Up Instructions for the MVP and EXEC II VHF Receiver and VHF Exciter and UHF Exciter|
Custom MVP I-F alignment procedure
By Patrick M. Conway WA6JGM
IF alignment for Mastr II, Exec II, and Custom MVP radios.
Some GE MVPs have shown up with a controller board made by Parkinson inside the case.
The system manual is LBI-3772, the board manual is LBI-32792 and both can be found in the LBI master index at this web site.
|Custom MVP Mobile Repeater Conversions from Scott Zimmerman N3XCC GE conversions from Repeater Builder (the company).|
|Temperature Compensation Capacitor information for 5C ICOMS 13 kB PDF provided by Chuck WB2EDV|
|Converting a UHF 20/35w PA to 5 watts for link transmitter use By Doug Crompton WA3DSP|
|Regarding UHF units: While there are duplex conversions of the MVP that will enable its use as a repeater or as a link radio, please understand that the MVP was designed as a 5, 20 or 35w mobile, and was designed for an intermittent duty. The 35w version has all three RF power amplifier stages (the pre-driver, driver and final), the 20w has two (the pre-driver and the driver), and the 5w has only one stage (the pre-driver). A common modification is to take a heat sink intended for a P4 CPU and adapt it to the back of the radio. Even the driver transistor gets hot and needs additional heat sinking. So if you intend to run an MVP with any kind of duty cycle (i.e. as a link or as a repeater) you really need a heat sink with a fan. And use a real metal ball bearing fan, not a sleeve or bushing fan.|
|Programming the Monogram and Maxon mobile radios By Scott Lichtsinn KBØNLY|
We have zero info on the Monogram series other than at least one of them was a rebranded
Maxon SM4000 series radio. If you have one of these then look on the web for the Maxon
SM4000 series information and programming software.
However, the following LBIs cover the mobile radios (they are all on this site):
Operators Manual: LBI-38862A
VHF Maintenance Manual: LBI-38864B UHF Maintenance Manual: LBI-38865A
If anyone has any other Monogram information and the software we'll be happy to host it (assuming it's legal to do so).
PCS Information:Anyone want to do an overview article?
Phoenix and Phoenix SX:
|Anyone want to do an overview article?|
|The screws that are used to hold the mounting bracket to the radio housing are metric, M4-0.7x10, which translates to M4 diameter, 0.7mm thread pitch and 10mm (1cm) long. Thanks to Tedd Doda, VE3TJD for the info.|
|Phoenix 2 channel to 16 channel modification By Joel Huntley WA1ZYX (offsite link)|
Interfacing the Phoenix to a packet TNC
offsite link to an article by Ray Vaughan KD4BBM
While the particle is packet oriented the info will be useful to anyone that needs to interface a Phoenix to a repeater controller - as a control receiver, point-to-point link, remote base, whatever.
KG4LNE's Phoenix Resources Page
By Robert Starr KG4LNE
When using the TQ2310 Suitcase Programmer (LBI-31229) to program Phoenix radios refer to LBI-31262.
Frequency Agile Modifications for Commercial RadiosModifying the S990 head for direct frequency entry By David Hopper WD4JKH (offsite link)
Trivia, Miscellaneous Information, and Datasheets:GE Mastr Trivia Question By Mark A. Cobbeldick KB4CVN
Test Sets and Tuning Tools
Information on GE Test Sets and Tuning Tools
The Repeater Builder's web site does not evaluate the accuracy of materials created by persons beyond its control or supervision. Therefore, although this site links to many additional web sites, The Repeater Builder's site is not responsible for the availability of or the accuracy of any materials contained within those web sites.
Mastr II® is a registered trademark of General Electric / Ericsson / Com-Net Critical
Communications / M/A-Com / Tyco / Harris (whatever their name is this month)
GE / Ericsson image used with permission.
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This page was created a long time ago in a galaxy not so far away.
This web 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.