Tait Radios

  1. My Tait Radios
    1. Tait 2000II T2015
    2. Tait 2000II T2020
    3. Tait 2000II T2040
  2. Radio Identification
  3. Rear Power and Spearer Plug
  4. Front Panel (Mic) Programming Cable
  5. DB9 style Line Interfaces
  6. Tait T2000-80 Line Interface Kit
  7. Tait T2000-UIS Line Interface Kit
  8. Programming the 70cm to mute digital traffic
  9. Jenal DTMF Microphone
  10. Microphone Modifications
  11. Documentation
  12. Deviation Adjustment on the T2015
  13. Refernces

Related Pages:
  1. TB7100 Repeater Base Station
  2. Echolink/svxlink/svxlink.html#uis


My Tait Radios

Here is the collection of Tait T2000 radios I am using. My experience has been with the T2000 series so I am no expert on Tait radios in general. I use T2000's on two meter and 70 cm to communicate on the local repeaters. I have also experimented with T2000 series radios for Allstar and APRS.

Tait 2000II T2015

Printout for: T2015-SN521675-Radio-Desk.pdf (local)
Printout for: T2015-321-000-SN521676 is not available.
Printout for: T2015-321-000-SN521791-521791-Vatea (local)
Printout for: T2015-321-000-SN523887 is not available.

Tait 2000II T2020

Printout for: T2020-513-I00-SN17033312-17314010-Radio-Desk.pdf (local)
Printout for: T2020-543-I92-SN17281405-17281405-AllStar.pdf (local)
Printout for: T2020-543-I92-SN17249485-17249485-Vatea.pdf (local)
Printout for: T2020-221-B92-SN17356371-82MHz is not available.

6M Conversion Instructions: T2020-6-meter-conversion.pdf (local)

Tait 2000II T2040

Printout for: T2040-321-F00-SN175408-17033312-Radio-Desk.pdf (local)


Radio Identification

This site gives a good explanation on the identification of Tait Radios:

Radios Tested:


Rear Power and Spearer Plug

Power and Spearer Plug pinouts


Front Panel (Mic) Programming Cable

The schematic of the front control panel showing the microphone jack is here:
Section_7-14-control-head.pdf (local)

Note: There is some concern that this scheme connects RS232c voltage levels, that can be a high as 24 volts to transistor level, to TTL components designed to operate a 5 volts. Modern workstations, laptops and USB to serical devices tend to operate at the lower range of the RS232 voltage range. I have used a straight through cable on many such devices without failures, however there are no guarantees. Be Warned.

Straight through RJ12 to DB9 cable

RJ12 Plug and Socket Viewed from the Front


DB9 style Line Interfaces

The schematic of the front control panel showing the microphone jack is here:
Section_7-14-control-head.pdf (local)

Using RTS signal from the PC to trigger the PTT (Tx). The computer then outputs the
audio signal from the software into the mic input of the radio.

DB9 Plug Pinout

Generic alternative for PTT
Generic PTT circuit
Version with isolation


Tait T2000-80 Line Interface Kit

This details the 15 pin connector on the T2000-A80 line interface kit:


This manual is also available from the Repeater Builder Site:


T2000-A80 Line Interface Pinouts:

The board fitting instruction are cover in the document:



Tait T2000-UIS Line Interface Kit

A similar Line Interface Kit to the T2000-80 is the T2000-UIS. It is describled in the Tait Electronics (Aust) Pty Ltd, A2000-UIS Ver 1.0, T2000 Universal, Interface Standard (AM2K-UIS) document:


Table 2 S21 DB9F Default Pin Out

Pin Number Pin Signal
4 PTT IN 1
7 PTT IN 2

Programming the 70cm to mute digital traffic

Wires-X traffic can be very anoying on receivers that are not able to decode it. Here are the program setting for CTCSS on RX so you dont hear the Digital noise (eg Wires-X) on the 70cm repeater when its on if you have a 2020.

Set in the channel list a frequency for CTCSS on RX to 91.5 and 91.5 in the TX set. In sub audible signaling set in RX ALL. In Monitor function disables all mutes. Tick monitor Key short and tick monitor key long. This will allow you to set the push button to long press and disable all mutes this allows you to disable the function by pressing the left hand bottom button. A long press now mutes, and short press only CTCSS mute disabled.


Jenal DTMF Microphone

DTMF Keypad microphone from Jenal Comms - Model DM1:

The DM1 is a low price DTMF keypad microphone originally designed to work with Tait 2000 series radios but is suitable for use with many other types of radios. The curly cord on this microphone is terminated in an RJ12 connector and is also fitted with two different rubber boots suitable for the Tait 2000 series radios. Simply remove the plug and boots for use with any type of radio other radio.

http://www.jenal.com/page17.htm - Jenal Comms Website
DM1 - DTMF Keypad microphone
DM1 - DTMF Keypad microphone


Microphone Modifications

The original dynamic inserts in the hand-held Taits are renowned for losing their sensitivity with age resulting in poor modulation depth on transmission and this project will restore clarity and power.



A good selection of schematic and parts manuals can be found at Keekles.org.

The Tait Schematics Manuals:

T2010 and T2015 HC05 Logic PCB(local)

T2020, T2040 and T2050 Control Head PCB(local)

Tait User Guide:

Link to the Tait T2020 User's Guide (Published:March 2002 Document:M2020-NA-000-805)


Deviation Adjustment on the T2015

The T2015 raadi I have is narrow band and I received signal repeprts that my signal was clear but well down in volume. The solution was to increase the deviation. I would the deviation control, RV907 fully clockwise and that has increased the volume of my transmissions to a more acceptable level.




VK6YSF - TAIT T2000ii radio programming and adjustments. December 2019:

Glenn Lyons VK4PK
Ver:gnl20181206 - pre published v1.0