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Amateur Radios      Antennas      Audio Processing      Carrier Squelch Boards      Crystals, Etc.      Duplexers and Filters      Land Mobile Radio Suppliers      New and Used Equipment      Parts and Components      Power Supplies      Preamps      Radio Direction Finding (RDF)      Radio Programming      Repeater Controllers      Repeater Manufacturers      RF PAs      Test Equipment      Tone Signaling      Tools (Hand / Power)      USB Radio Interfaces      Voting Equipment      Wattmeters     

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Repeater Manufacturers
Repeater Builder the company     Makers of quality custom built Motorola and GE Mobile and Station conversions.
Arcom - Kenwood Dealer   Kenwood Repeaters from Kenneth Arck AH6LE with a focus on functionality and value.
BridgeCom Systems, Inc.   Repeaters for 2M, 220, and 440 MHz. plus many other items like portables, mobiles, duplexers and power amplifiers.
Ritron Inc.   RRX series plus other repeaters.

New and Used Land Mobile Radio Equipment Suppliers  Motorola®, GE®, Etc.
Air Comm   In Phoenix for over 20 years.
Brinkley Electronics   Also has a nice commercial radio cross reference page.
BroComm Corporation is a new and used equipment vendor in Ontario, Canada. They frequently have 136-150 MHz and 406-420 MHz equipment.
Carrier Communications is a major 2-way outfit in Northern and Southern California.
Mechem Electronics   Quality New and Used Commercial and Amateur Radio Equipment
Hamblin Communications   Great source for GE MASTR II Mobile radios and parts.
New London Technology   GE equipment

Repeater Controllers
SCOM Repeater Controllers   A good source for reliable repeater products with excellent engineering in the audio sections.
Audio Test Solutions - RLC Controllers   Another good source for reliable repeater controller products with a focus on flexibility.
Arcom Repeater Controllers   Repeater/Link/Remote-Base Controllers and Accessories from Ken Arck AH6LE with a focus on functionality and value.
ICS Repeater Controllers   Basic and Linker models available for a very affordable price.
MABEL is an interface and software that allows analog control of the Yaesu DR-1X repeater and access to the AllStar VOIP network with the Raspberry Pi3 or 4 and AllStar Asterisk.
HamGadgets   Many items including the popular/inexpensive ID-O-Matic III and IV - from Dale Botkin - NØXAS.
Sierra Radio   Amateur Radio Control Systems, HamStack, and more.
Advanced Repeater Systems (ARS) Repeaters and Controllers   Repeaters, controllers, D-Star, EchoLink, etc.
Autocode Morse Code Identifiers   Small low-cost commercial and amateur CW IDers.
EchoStation   A PC-based repeater controller by Jonathan Taylor K1RFD
Janel Communications   CW-ID 1 Repeater/Beacon controller from Perth, Western Australia.
Pacific Research Solutions   Models with built in squelch control, and Cactus compatible.
Pion & Simon Electronics   MASTR II Station Controllers that plug right into the GE card cage! Unfortunately they went out of business at the end of 2016 but all the support information is here on Repeater-Builder.com
Zetron Inc   Consoles, Recorders, Dispatch, Alerting, Paging, Monitoring equipment (commercial repeater oriented).
AllStar Link   VoIP (RoIP) controllers built from PC computers, Raspberry Pi's and USB radio interfaces (below).

USB Radio Interfaces
DMK Engineering  URIx radio interface.
Masters Communications  RA and DRA series of radio adapters. All available in kit form or assembled & tested.
Repeater Builder RIM  Maker of the RB-USB-RIM (and RIM-Lite) radio interfaces.
USB Radio Interface Projects  Scroll down to the USB conversion articles.

Repeater Controller Groups
Click here for information on several repeater related email lists/groups.

Land Mobile Suppliers
TESSCO
Talley Inc.   They are based in southern California and have stocking warehouses in 9 states (AZ, CA ,CO, GA, IL, TX, KS, NY, WA).
The Director of LMR and Public Safety sales is a long-time ham.

Filters, Duplexers and their Test Equipment
Celwave, Phelps Dodge, Radio Frequency Systems (RFS)   Quality Station and Mobile Duplexers.
Digital Communications Inc.   RF Filters for intermod and remote bases, etc.
EMR Corporation   EMR Corporation
Masters Communications   Quality return loss bridges.
Microwave Filter Company   Filters and components from 5 Hz to 50 GHz.
MtronPTI   Formed by the merger of Mitron and Piezo Technology. Makers of crystal filters, Combline/Cavity Filters, and more.
Sinclair Labs / Sinclair Technologies Inc.   Sinclair Antenna Products
Telewave, Inc.   Offers a 30% discount to hams and clubs with a valid amateur license.
TX RX Systems   TX RX Systems, now a division of Bird Technologies.
Wacom Products   Wacom is no longer in business, they have been acquired by TX RX Systems.

Crystals, Channel Elements, ICOMs and Ovens
QuartSLab Crystals
Bomar Crystals   New Jersey   One of the few remaining domestic crystal manufacturing companies.
Crystal Heater (oven)   Provides excellent temperature stability at a fraction of the cost of what ICM charged.  New

Repeater Receiver Preamplifiers
Masters Communications Preamps for 144, 220, and 440 MHz   High performance, very small, low cost.  New
Angle Linear High Quality Preamps   Very high quality preamps, RX splitters, multicouplers, bandpass filters, preselectors, etc. The owner (N6CA) is a VHF and UHF weak signal enthusiast and a top-notch RF designer and it shows.
Advanced Receiver Research Preamps   Preamps, attenuators, coaxial adapters.
Down East Microwave   Products for 50 MHz through 11 GHz. Transverters, block converters, preamps, all kinds of parts and assemblies.
GLB Preselector Preamps   This link takes you to Simex Company. It's for real.
GLB Electronics is no longer in business; it was founded in 1972 and the founder and chief designer Gilbert L. Boelke W2EUP passed away in 2001. Many of the people from GLB formed Simrex Corp. and still sell, and repair all of the GLB Products including the preamp-preselectors.
High quality preamps custom built and tuned to order for VHF / 2 meters, 222 MHz, UHF / 440 MHz and 900 MHz are available from Matt Lechliter W6XC at grandnationalradio // at // gmail // dot // com.
(Matt has been doing these for over 5 years and has been doing them by word of mouth advertising and he doesn't have a web page)
Ramsey Electronics Kits   After more than 40 years as a purveyor of inexpensive electronics kits for hobbyists, the Ramsey Electronics group has discontinued its line of electronic kits, which included several FM and AM radio transmitter kits. At the time of updating this paragraph some Ramsey kits are still available at www.radio-ware.com and on Amazon.
Radioware (Ramsey) High Performance 2 Meter Kit     Look under "Misc. Products", Radio Kits.
Telewave, Inc.   They have been around for over 50 years and makes a comlete line of antennas, cavities, combiners, isolators/circulators, and more. They offer a good discount to hams and clubs (valid amateur license required).

Repeater Power Amplifiers
Crescend   makes RF power amplifiers for all commercial and amateur bands, up to 350 watts, running on 13.8VDC or 120VAC.
Henry Radio Amplifiers   A complete line of high power Solid State RF Power Amplifiers from 28 MHz to 520 MHz.   The manufacturers web site: Henry Radio Amplifiers is at (310) 534-4456.
The amplifiers are Made in the USA. They also repair and rebuild their amplifiers.   Also distributed by RadioDan W6RF.
Mirage Amplifiers   Now owned by TPL, their product line includes a few repeater preamplifiers and power amplifiers.
TE Systems   RF power amplifiers and preamplifiers for all commercial and amateur bands, up to 600 watts, running on 13.8VDC or 28VDC.
TPL Communications   Closed. They were at 3370 N San Fernando Rd # 206, Los Angeles, CA, 90065. Both that location and the older location at 8160 Van Nuys Blvd. Panorama City, CA 91402 are occupied by new tenants.

Radio Direction Finding   (RDF) (Doppler)
Doppler Systems®

Service Monitors
IFR Systems   Manufacturer of high quality Service Monitors, now called Aeroflex.

Antennas, Feedline, Connectors and related products
Amphenol   Connectors.
Andrew Corporation   The makers of Heliax, Radiax, and some other top quality products. Now a division of CommScope.
Antenna Products Corporation   Makers of top quality Log Periodics and other specialized antennas.
Antenna Specialists was bought by Andrew Company in July 2003.
Antenex   Antenex and Centurion Wireless Technologies - based out of Glendale Heights Illinois. Designer and manufacturer of mobile, portable, and fixed station antennas for a variety of comercial 2-way and amateur radio applications. They have models of mobile antennas that combine land mobile or amateur VHF with GPS. They also have mobile wi-fi antennas.
Antennax   This company is an aftermarket supplier of mobile entertainment system antennas. They have no amateur or land mobile antennas. They are listed here only to resolve the confusion between them and Antenex (above) and antennex (below).
Antennex   (short for "antenna experimenter") This is a monthly web-based antenna experimenter's magazine based out of Texas. They are listed here only to resolve the confusion.
Base Station Supply by Kevin Magloughlin KAØJQO   He'll undercut anyone to close the deals, and his pricing is already aggressively lower for the amateur community.
Celwave / RFS World   Repeater antennas and associated products
Comet Antennas   Fragile, but otherwise high quality antennas for monoband and multiband base station use.   You don't want to use one as a repeater antenna.   Also known as NCG-Comet.
Decibel Products   DB Products (now part of Andrew Corporation, a part of Commscope) makes high quality duplex antennas
Hustler-Newtronics   G Series and Spirit Series high quality antennas for monoband and multiband applications.
Hy-Gain   HF and VHF antennas.
Larsen Antennas   Top quality mobile and base antennas from a USA company. Properly called Radiall/Larsen. Now part of Pulse Corp. Nice on-line catalog.
Kathrein-Scala Company   Not too well known in amateur circles but this Oregon-based company (originally Scala - later bought by Kathrein) makes some of the ruggedest antennas out there. They also make power dividers (look on the Accessories page). And don't let the "UHF Mobile" in the catalog index confuse you, they DO make UHF base station antennas - and NICE ones.
M2 Antenna Systems Inc.   Good antennas, especially the beams
Maxrad   Quality station, and complete line of mobile antennas.
Antennas Store   All types of Military Antennas, Amateur Radio Antennas, Mobile Radio Antennas, GPS Antennas, Satellite Antennas, WLAN/Wi-Fi/WiMax, Antennas, Cell Phones, TV, HDTV Antennas
PolyPhaser   Lightning Protection Products
Sinclair Labs / Sinclair Technologies Inc.   Sinclair Antenna Products
Telewave, Inc.   Quality station and microwave antennas.
SurplusServer   A source for surplus Antennas, Hardline, Connectors, RF Adapters, Coax, Etc.
RF Connection   A good source for Hardline, Connectors, RF Adapters, Coax, Etc.
The Wire Man   A good source for feedline and parts of all types. Owned by a ham (N8UG)   800-727-WIRE for orders.
Davis RF, a division of Orion Wire   Supplier of conectors. They will also make custom cables. Friendly knowledgeable people. They are ham-aware.
Coax Warehouse - an eBay store   Supplier of conectors and crimping tools at wholesale prices. They have silver plated RG214 connectors. Do an in-store search. They sell crimp sleeves and center pins separately.

Repeater Audio Processing Systems
Repeater-Builder AP-50   Audio processing and brick wall filtering for building a quality audio repeater.  
K2RF Communications Products   Audio processing and equalization products for repeaters.

Repeater Voting Systems
LDG Electronics RVS-8
LDG info and articles can be found on our LDG-specific page.
Build a 2 Channel Voter!   Online article here at repeater-builder.

Test Equipment
Amtronix Instruments   Quality used and refurbished Communications test equipment - HP 8920, E8285A, etc. New
Agilent Technologies   The former HP / Agilent test equipment division
Bird Electronic Corporation   Wattmeters
Coaxial Dynamics   Wattmeters
IFR Systems, Inc.   Communications Service Monitors. Now called Aeroflex.
Masters Communications   Quality return loss bridges. New
Optoelectronics   Frequency Counters
Tektronix   Test equipment including spectrum analyzers
Telewave, Inc.   Telewave - Offers a 30% discount to hams and clubs with a valid amateur license.
Wavetek   Communications Service Monitors

Tone Signaling Equipment
The CT-30DW   The Masters Communications' CTCSS encoder - decoder board.  New
Communications Specialists   Past makers of PL, DPL and paging encoder products including the TS-64 and similar tone boards. They also supported the Selectone product line. No longer in business - manuals available for legacy products.
The SC-50DW   The Masters Communications' MICOR noise squelch and CTCSS decoder on a single circuit board.  New
The SC-75DW   The Masters Communications' MICOR-like noise squelch and CTCSS decoder on a single circuit board.  New
Connect Systems Inc.   This is the CSI that's in Ventura California and makes repeater tone panels, commercial autopatches, and LTR Trunking Controllers.
Midian Electronics, Inc.
Pipo Communications   One of the first manufacturers of add-on DTMF pads

Carrier (noise) Squelch Boards
The MS-25   The Masters Communications' MICOR noise squelch board.   New
The MS-50   The Masters Communications' MICOR-like noise squelch board.   New
The SC-50   The Masters Communications' MICOR noise squelch and CTCSS decoder on a single circuit board.   New
The SC-75   The Masters Communications' MICOR-like noise squelch and CTCSS decoder on a single circuit board.   New
The RLC-MOT   The RLC / Audio Test Solutions MICOR noise squelch board was discontinued as new squelch chips are no longer available.
NHRC-Squelch   NHRC makes the NHRC-Squelch carrier squelch board.

Parts and Components Suppliers
Arrow Electronics   A quality parts supplier with inventory, prices and shipping terms that compare very favorably with other (similar) companies.
RF Parts Company   A quality RF parts supplier.
Gigaparts New and used amateur equipment and computers.
BG Micro New and surplus electronic components.
TTI Inc. From their web site... "TTI is the world's leading distributor of passive components, connectors, interconnect systems and electromechanical components".
Jameco New and surplus electronic components. They frequently have older parts that nobody else has. Get their catalog! (top right of the opening screen)
Digi-Key Corporation   Has a free catalog and a very good online ordering web server. Get their catalog!
Mouser Electronics   This company is a good source of passive components.  They offer reasonable quantities at good prices.
Galco Industrial Electronics   Shop by phone or online - no minimum order. Phone 800-575-5562
Allied Electronics   They supply components for industrial and commercial users, but they have a large selection of parts that are actually in stock and available in reasonable quantities.
Alltronics Corp.   Located in Morgan Hill (San Franciso Bay area) this is a very nice surplus outlet. Their web site is worth exploring for good deals on power supplies, etc. Phone 408-778-3868
All Electronics Corp.   Located in Van Nuys (Los Angeles area) this is a very nice surplus outlet. Their web site is worth exploring for good deals on components, fans, voltmeters, ammeters, power supplies, etc. Phone 888-826-5432
All Electronics closed their doors in September 2023 after nearly 50 years in the surplus business.
A number of the former employees came together and are continuing under the name of AREtronics.com at 818-740-1250 and info //at// aretronics //dot// com.

DC Power Supplies
Astron Corporation   Linear and Switching Supplies. There is a web page here at repeater-builder that has a library of their schematics.
Samlex   They make switching power supplies, including models that charge batteries and have more than one module inside (for higher current and N+1 fail-safe operation).
They also make quality multistage automatic chargers for backup battery systems.
Duracomm, Inc.   An alternative to Astron if you want a better supply.

Tools and Equipment (hand tools, power tools, soldering tools, etc.)
TechSpray Corp.   These folks make a wide variety of soldering/desoldering tools, including replacement tips for Ungar, Weller and Pace - and the variety and selection of tips is much wider than the original manufacturers. They sell through distributors, and Mouser is one of them.
PACE Soldering / Desoldering Tools   PACE is the "Rolls Royce" of production hand soldering/desoldering systems. If you do any PC board repair and can find a used one at a good price (they are expensive) you will soon find one of these invaluable. They sell through distributors and there is a "Reps and Distributors" menu item on their web site.
PROM / EPROM / EEPROM Programmers   Occasionally you need to be able to read, program, or copy PROMs/EPROMs/EEPROMs. Or to copy from one to another. I've had one of these units since the early 1980s and I can't say enough good things about this company. The hardware just plain works! The company updates the software on a regular basis. Their programmer unit comes in both parallel port and USB versions and has adapters for oddball chips like 32 byte x 8bit prom chips, PICs, AVRs, PLCCs, TSOPs, SOICs and they even offer gang programmers. If the current device looks familiar it is, Transtronics bought the old Intronics "Pocket programmer" product line after Intronics folded. Definitely recommended.
EPROM emulator   This gadget sure beats the program / test / erase / (repeat forever) cycle that is so common in firmware development. You plug this into the printer port of your computer and it can change the "PROM" contents on the fly. Definitely recommended.
Craftsman   Formerly the in-house Sears brand that used to have a lifetime warranty on hand (i.e. non-power) tools. They went to chinese manufacture and now are on the status with Harbor Freight (which has more stores). I buy the Snap-On tools for the tools that I'll use daily, the Harbor Freight "Icon" brand for the tools I'll use once in a while.
Harbor Freight   A source of imported (moderate quality) tools. Good for "disposable" tools like hacksaw blades, Dremel saws, "simple" tools like a bench vise, linemans pliers, or rarely used tools (like an adjustable wrench with 4 inch wide jaws), etc. They have a store locator on their web site with locations in all 50 states.
The "Icon" brand hand tools has a lifetime warranty, everything else has a limited time warranty.
Xcelite™ tools by Apex Hand Tools   The "Type 99" kit is very handy in your traveling toolbox. My field toolbox has three Type 99 handles and a collection of blades and extensions in a canvas roll-up.
Jensen Tools   Jensen Tools was bought by Stanley. Jensen is a suplier of field service tool kits and frequently is the only source of some interesting devices. They have a print catalog that they send out on request - worth getting.
Specialized Products Company   Another suplier of field service tool kits and field installer tool kits. They have fiber optic cable and telecom tools. They have a print catalog that they send out on request - worth getting.
Techni-Tool   Another specialty tool supplier, also with a print catalog that they send out on request - worth getting.
Grainger Corp.   Industrial supplier, some stores will only sell to businesses. They have a store locator on their web site. This is the only place I've found differential thermostats or humidistats. They have a print catalog that they send out on request (but with the cost of postage it takes some convincing) - worth getting.
McMaster-Carr Corp.   Another industrial supplier, this one with a better web site, and they ship from stocking warehouses. They have a free catalog that's several inches thick that they send out on request (but with the cost of postage it takes some convincing) - worth getting. They have will call counters in only a few places including Atlanta, Chicago, Cleveland, Los Angeles, and Princeton (New Jersey).
Alltronics Corp.   Located in Morgan Hill (San Franciso Bay area) this is a very nice surplus outlet. Their web site is worth exploring for good deals on power supplies, etc. Phone 408-778-3868
All Electronics Corp.   Located in Van Nuys (Los Angeles area) this is a very nice surplus outlet. Their web site is worth exploring for good deals on components, fans, voltmeters, ammeters, power supplies, etc. Phone 888-826-5432
All Electronics closed their doors in September 2023 after nearly 50 years in the surplus business.
A number of the former employees came together and are continuing under the name of AREtronics.com at 818-740-1250 and info //at// aretronics //dot// com.

High Quality Wattmeters
Bird Electronics   Makes the standard wattmeter of the communications industry - the Bird Model 43. There are some Bird manuals and photos on the Test Equipment page at this web site.
Radiodan   is a supplier of Bird meters and accessories. Give him some cash and he will give you a Bird™.
Coaxial Dynamics   A Bird clone. I've had both a CD and a Bird, and there are times I prefer the bigger meter on the CD.
ChuckMartin.com / Martin RF Supply   Domestic and International RF Products, New and Used RF Wattmeters, RF Dummy Loads, Wattmeter Elements (slugs). Give him some cash and he will give you a Bird™.
Telewave, Inc.   Telewave - The Model 44 is their premeir wattmeter. Think of it as a slugless Bird. Offers a 30% discount to hams and clubs with a valid amateur license.

Amateur Radios
Ham Radio Outlet   Several stores across the US. Amateur Electronic Supply went out of business in 2016 and sold their assets to HRO.
Alinco, Inc.   Alinco sells amateur digital and analog transceivers.
Connect Systems, Inc.   Connect Systems sells commercial and amateur digital and analog transceivers.
Icom America   Icom sells commercial and amateur digital and analog transceivers and repeaters.
Kenwood USA   Kenwood sells commercial and amateur digital and analog transceivers and repeaters.
Yaesu   Yaesu sells amateur digital and analog transceivers and repeaters.

Radio Programming Services
The following people are capable of programming analog MSF5000 EPROMs:
Andy Brinkley of Brinkley Electronics in Winston-Salem, North Carolina (click on "Programming" then "Motorola" then "MSF5000")
Bruce Lane of Blue Feather Technologies in Kent, Washington (scroll down to "RF Services")
Kevin Magloughlin via e-mail
Bernard Dier via e-mail
Jared Lambert via e-mail

The following person is capable of programming GE radios such as MLS, MLS-II, Delta, RANGR, and Phoenix, and many Motorola, Icom, Kenwood, and Yaesu mobile radios:
Len Kreyer via e-mail


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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.