| Back to the Tait index page Back to Home | Introductory Information on Tait Equipment Compiled by Mike Morris WA6ILQ from donations from several folks |
| An overview article on what equipment is of interest to the amateur would be most welcome (and we won't complain if it's written by a dealer, as long as the major thrust is information sharing rather than sales). If the person wants to remain anonymous (as many manufacturers employees want to) that's alright too. If there is a Tait expert 'out there' let me know, I'd be willing to just about turn over this page to you. If there is a Tait new or used equipment seller that would like to do some business with USA amateurs please let the author know. I can put a pointer to you on this web page. There is a real lack of NBFM mobile and handheld equipment that covers 218-225 MHz, plus I know of more than one multi-repeater system whose members could use a 2m or 440 radio with the mobile voting feature (described below). |
Tait doe s not warrant that th e fun ctions contain ed in th e Software will meet the Licen cee's requirements or th at Related Products for Tait t2020 Tait TM8252. Tait Broadband and Convergence Solutions integrate critical communications systems with the latest technology, converging diverse technologies like LMR, LTE, Satellite, and WiFi. By unifying multiple networks, devices and applications, Tait provides simple, secure, and flexible solutions to improve safety and efficiency for your organization.
Cracking the model number code:
Let's use the model number T2020-XYZ-AAA as an example...
First of all, I'm assuming that the 'T' is Tait.
Second, the 2020 iis the basic product model number.
Tait calls the XYZ digits the 'RF Type group' and these indicate the basic RF configuration of the radio.
The value of 'X' in the above example translates to the frequency band:
- '2' for 66 to 88 MHz (the 'low band' in most of the world)
- '3' for 136 to 174 MHz
- '4' for 175 to 225 MHz
- '5' for 400 to 470 MHz
- '6' for 450 to 520 MHz (my reasearch says these will 'stretch' down to 440 MHz)
- '7' for 330 to 360 MHz
- '8' for 800 MHz (806-870 MHz Tx, 851-870 MHz Rx)
- '9' for 360 to 400 MHz
- '0' for 500 to 530 MHz
- ? The information I was able to gather had zip for the USA 30 to 50 MHz 'low band', or for 900 MHz
(USA commercial=896 to 941 MHz Tx, 935-941 MHz Rx,
USA amateur=902-904 mobile transmit, 926-928 mobile receive and simplex transmit)
The value of 'Y' in the above example designates radio IF bandwidth.
- '2' for narrow band (7.5 kHz channel spacing)
- '3' for medium band (12.5 kHz channel spacing)
The value of 'Z' the above example designates frequency stability (no data yet).
The digits represented by the AAA in the above example cover a wide range of software and market specific options. The large number of options and their frequent changes preclude listing them here. I suspect that they might be considered model-specific.
Click here for a chart showing the frequency coverage of various Tait models.
Programming:
One refreshing policy of Tait is that the programming hardware schematics and all of the radio programming software is provided to their dealers at no charge. Dealers can distribute it to interested end users if they chose to.
Notes:
One option that Tait offers that very few manufacturers have is voting in the mobile - where a mobile can select the best base station or repeater signal depending on signal strength. Picture an agency, such as a county or district police department, with a large number of wireline (or microwave link) controlled linked base stations or reepaters, all of which are at different geographical sites (each of which, naturally, has different geographical coverage, or 'RF footprint'), all of which transmit the same audio (or it could be a large, linked repeater system configured so that what goes in on one system comes out on all systems). This mobile voting feature, when enabled, causes each users receiver to automatically select the best signal, and the receiver steers the transmitter appropriately. The user never has to twist a knob as he drives around. This Tait applications note describes the technology and how it works. The really nifty part is that everything is in the mobile radio.
Tait was founded in 1969 by Angus Tait, amateur call ZL3NL. He passed away on August 7, 2007 at age 88.
Tait has made some service manuals for older radios downloadable for the general public at their support website. A lot of information on older products can be found athttp://support.taitradio.com/systems-and-products.
An amateur who works at Tait offered this information:
Contact Information:
The author can be contacted at: his-callsign // at // repeater-builder // dot // com.
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This article first posted 21-Dec-2005.
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.
Tait T2020 Software Pdf