Related Manuals for Midian RT-2
Summary of Contents for Midian RT-2
- Page 1 RT-2 2-Tone Decoder Manual Revision: 2010-05-04 Covers Software Revisions: RT-2: 1.3 and higher Covers Hardware Revisions: UED-1: 283C...
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Page 2: Specifications
GENERAL INFORMATION The RT-2 is a 2-Tone decoder module that is capable of decoding up to 3 different 2-Tone sequences. The RT-2 offers momentary and latched outputs and supports individual and long tone group calls from 275 to 3500 Hz. -
Page 3: Keypad Programming
Keypad There are 7 pins on the keypad and 8 pin holes on the Midian product. Pins 1-7 are used on the Midian product. Pin 8 is only used if using a Row/Column Ground type keypad. The following diagram shows the pin numbers:... - Page 4 Register 8B – Set this register for 00-99 seconds. This sets the length of time the unit rings when it decodes. Register 8C – Set this register for 0-7. This sets the mode or tone the RT-2 will transpond in.
- Page 5 If a register is not being used enter #*n. The “#” key acts as a clear command. To exit programming mode type the following sequence: Upon exiting the programming mode the unit will give a long beep and resume normal operation.
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Page 6: Hardware Installation
HARDWARE INSTALLATION Be certain to follow standard anti-static procedures when handling any of Midian’s products. P1-4 – Black – Ground – Connect to the nearest ground point. P1-2 – Red – +5.5 – 15 VDC – Connect to switched B+ in the radio. -
Page 7: Hardware Alignment
HARDWARE ALIGNMENT RX Audio Input: On the RT-2 adjust R65 so that Pin 14 of U2 (TP1) doesn’t quite clip when a 1 KHz tone modulated at 3.3 KHz deviation from a signal generator is applied. Additionally, monitor TP2 (U2 Pin 8) for a clean symmetrical square wave. -
Page 8: Technical Notes
TECHNICAL NOTES Decode Timings: We recommend using the following timings: 2-tone: 200 msec for 1 second/3 second timing MIDIAN CONTACT INFORMATION Midian Electronics, Inc. 2302 East 22 Street Tucson, Arizona 85713 USA Orders: 1-800-MIDIANS (643-4267) Phone: 520-884-7981 Fax: 520-884-0422 E-mail: sales@midians.com... - Page 9 RT-2 PROGRAMMING WORKSHEET ver. 1.3 & higher To access keypad programming enter: #27182818284 Register 1: Decode 1 1A - A Tone Frequency (0250.0-3500.0 Hz) 1B - B Tone Frequency (0250.0-3500.0 Hz) 1C - Ring Code (0-2, 4, 5, 8, 9) Register 2: Decode 2 2A - A Tone Frequency (0250.0-3500.0 Hz)
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