Note that the contents of this page, like most here at www.repeater-builder.com, are totally dependent on donations of information. In other words, the repeater-builder web site and this Zetron web page is what the contibutors make it. If you have a manual PDF that we do not have, a wiring hint, a programming trick, or other useful information, please consider writing it up and sending it in.

Zetrons product line is oriented towards the main Land Mobile Radio marketplace - they manufacure nothing specifically aimed at the amateur market. However, a number of amateur repeater and remote base systems have made use of Zetron equipment to resolve specific issues, and below are the specification sheets / catalog sheets and manuals we have been able to locate.

The only reason that this page is here at all is that Zetron Corporation has a bad habit of not having any manuals in any form - not even PDFs - for any equipment not in current or very recent production. Since the mid-1980s almost every manual has been created on a computer and making a PDF after it is complete involves one little step (and can be done in a few minutes with a free program like "doPDF"). Scanning an older paper manual costs maybe an hour. Disk storage is tremendously inexpensive, In early 2010 I bought a new over-1 terabyte disk drive for under US$100 (that's over 1,000 gigabytes).

Downloadable PDFs cost nothing but server space, and not having them is a good definition of lousy customer service and a way to make past customers really unhappy. And refusing to make windows-compatible programming software for your products is an other example of lousy customer service (note I didn't say a windows application, I said a windows-compatible app, there is a big difference). Unhappy customers tend to explore their options and end up finding other / alternate manufacturers. And acquiring a new customer costs a lot more then keeping an existing one.

Another example of lousy customer service is "edited" manuals. The Zetron Model 38 factory manual below is a good example of this. The schematics are in Chapter 6, but the schematic pages are BLANK! Someone that has a community repeater (the term used in commercial two-way radio for a shared repeater) that is controlled by a Zetron 38 that happens to need a trivial repair is going to look in his manual, and find blank pages. He has a bunch of annoyed (if not irate) users that can't talk to their units. He's going to remember just how helpful Zetron was when he's ready to buy another community tone panel or other device.

Speaking of being unhelpful, someone called Zetron with a programming issue on one of their products. The first issue was they needed a sales order number for the unit they were calling about. Of course, this was a used unit, so there was no order number available. The next issue required them to have a service contract, which again the current owner didn't have nor did he want to set up. That basically ended the customer service experience. It's just this sort of runaround that will send future customers to other manufacturers.

No Zetron copyright infringement is intended.   The only reason this web page is here is that Zetron has totally abandoned their past customers... if they had these files on their public web site we wouldn't need to.

We've had requests for info on the model 8 family units and on both the 45 and the 45B units. Note that the 45 and the 45B are very different.

	Zetron model 19B "Simplexor" documentation courtesy of A. Nony Mous: Brochure   38 KB PDF Schematic   452 KB PDF Instruction manual   1.6 MB PDF
	Zetron Model 30 Worldpatch Brochure   900k PDF
	Zetron Model 30 Worldpatch with Selcall Instruction Manual (# 025-9431B)   1.1 MB PDF This is the later version manual
	Zetron Model 30 Worldpatch Instruction Manual (# 025-9140P)   500 KB PDF This is the early version manual
	Zetron Model 35A Brochure   2.2mb PDF Zetron Model 35A Microconnect Operators Manual (#025-9044s)   1.05 MB PDF Zetron Model 35A Microconnect Operators Manual (#025-9044t)   10 MB PDF Anybody have any other info ?
	Zetron Model 37 RepeaterMan Instruction Manual (# 025-9180F.2)   3.4 MB PDF file
	Zetron Model 37-MAX Repeater Pal Installation Manual (# 025-9376A)   370kb ZIP file containing several files
	Zetron Model 38 Sales Brochure   61 KB PDF file Anybody have any docs on a 38 ?
	Zetron Model 38A Instruction Manual (#025-9043Y)   1.34 MB PDF file Anybody have the 38A Brochure or Repair Manual ?
	Zetron Model 38A Repeater Tone Panel Instruction Manual (#025-9043Y) (with scanned schematics)   1.17 Mb PDF   Donated by Eric Lemmon WB6FLY The cable that plugs into the 38A is part number 709-7112 (and the price in fall 2006 was US$35). This is the generic cable with flying leads (as opposed to one that has a connector that is designed to plug into some other manufacturers equipment). BTW the differences between a 38 and a 38A are changes to both firmware and circuitry. They are similar in functionand name but internally they are essentially different products. It's not really practical to attempt a field upgrade.
	Zetron 38MAX Brochure   51 KB PDF Zetron 38MAX Manual (#025-9263B.1) (with schematics)   4.98 Mb PDF
	Zetron 39 Premium Repeater Panel Brochure   4.98 Mb PDF
	Zetron 39 Manual (#025-9113G   3.7 Mb PDF
	Zetron Model 40 System Patch documentation courtesy of VA3KMC: Instruction Manual (#025-9136G)   1.13 Mb PDF Repair Manual   520 KB PDF
	Anyone have anything on a Zetron 45? Note that the 45 and the 45B are very different units.
	Zetron 45B Brochure   2.5 Mb PDF Zetron 45B Z-Patch Installation Manual (#025-9092Q.1)   8.8 Mb PDF; Contributed by Lee Simon KE7EYX
	Zetron 48Jr system Zetron 48Jr Brochure   105 KB PDF Courtesy of the scanner of Barry Palmore we have the the complete, front cover to last page Zetron Model 48-Jr Repeater Patch Installation Manual (# 025-9362C).   Richard Schiller W4RSE took the eleven individual PDFs and made one big PDF file. Note that this manual is available in two forms: Here is a single zip file (507 Kb) containing 11 separate PDF files, or here is a single large PDF file of the whole manual (562 KB).   If you only need one section, like the schematic (which is in section 6) the zip file may be more appropriate.
	Zetron Model 48B Repeater Manager Instruction Manual   This is a 12 MB PDF file Zetron Model 48B Repeater Manager Instruction Manual   This is a 39 MB PDF file Two different people sent in the files, one was Eric VE2VXT.   If you have the bandwidth / download time / disk storage space I'd get the bigger one. Anybody have any other info ?
	Zetron 48 MAX Brochure   123 KB PDF Zetron 48 MAX Manual   6.68Mb PDF
	Zetron 72 Brochure   612 KB PDF Anybody have the Instruction Manual, Repair Manual or Schematic ?
	Zetron ZR-310 Community Repeater Panel Service Manual   640 KB PDF Usually found in GR300, 400, 500, and CDR series low-end repeaters.
	Zetron manufactured a number of products for Motorola's low-end Maxtrac and GM300 based repeaters including the Zetron ZR320 Selective Calling Interconnect Controller (known as part number HLN8389), the Zetron ZR330 Remote Telephone Interface (HLN8390), and the Zetron ZR340 Advanced Interconnect Repeater Controller (HLN9119). All of these are documented in the GR300 and GR500 Repeater Service Manual, number 68-80903Z42-A. This manual is no longer available but a 9.31 MB PDF can be downloaded from the Maxtrac page at this web site. The relevant sections from that manual have been separated into several PDFs here: Zetron ZR320 Programming 1.52 MB PDF Zetron ZR320 Selective Calling Interconnect Controller   855 KB PDF Zetron ZR330 Programming   241 KB PDF Zetron ZR330 Remote Telephone Interface   364 KB PDF Zetron ZR340 Advanced Interconnect Repeater Controller   487 KB PDF Zetron ZR340 Programming   609 KB PDF
	Zetron 350 Europatch Brochure   107kb PDF Zetron ZR350 Europatch Instruction Manual   556 KB PDF Despite the name "Instruction Manual" this document has all available information, including service schematics and programming instructions.
	Zetron 735 Brochure   441 KB PDF     This unit is oriented toward European phone systems.
	Zetron 745 Brochure   88 KB PDF     This unit is oriented toward European phone systems.
	Zetron 748 Technical Manual   1.5MB PDF     The 748 is just an upgraded 745; this manual should be useful on both units.
	Zetron "Deadbolt" Lightning Surge Arrestor Brochure / Specification Sheet   39 KB PDF     This unit is a phone line protection device (overvoltage, lightning, RF, etc). Anybody have the Instruction Manual, Repair Manual or Schematic ?

Zetron, Simplexor, Worldpatch, Microconnect, Repeaterman, Europatch, Deadbolt and probably a few other terms are either service manrks, trademarks, or some other legal mark and no infringement is necessary. As said above, if they had these files on their public web site we wouldn't need to.