Subject: Expanded RX and TX range for the ADI AT-400
Date: 6 Oct 95
NOTE! The first step is the microprocessor master reset and will erase ALL memories.
01 While pressing the Function button (F), turn the radio on Display will show all figures.
Release the (F) button and it will read 440.00 (some models display 433.00)02 Turn power off.
03 Press 3 while turning power back on Display will read 440.00 again 04 Press F and 3.
Display will read 10 Change “STEP” to 05 by turning dial one click 05 Press F and 9.
Display reads 05.00 We are now going to change it to 30.63[50] 06 While pressing the F button,
rotate the dial knob about 25 clicks clockwise until the display reads 30.00 Release the F button Rotate
the dial clockwise about 127 clicks until the display reads 30.63[50] 07 Press F and 3 and change
“STEP” back to 10 08 Press F and 0 Display reads 440.00 09 Press 7 Display
reads .10 Press the numbers 3 0 6 3 11 Press * Display reads 430.00 12 Press F and 9.
Display reads 30.63[50] Hold the F button and turn the dial counterclockwise about 25 clicks until display
reads 05.63[50] 13. Release F button Turn dial CCW until it reads 05.00 14. Press * Display
reads 430.00 15. Turn the radio off and then back on again This restores the keyboard direct
frequency entry feature.
The modification is now complete The radio will now receive and transmit from 430.00 to 463.995 Hint:
Use the F and Mhz buttons to make large frequency changes Now that the initial codes have been entered, the
frequency span can be easily changed Example:Program the US Amateur band only (420.00 to 449.995 mHz) 1)
Press F and 0 2) Press 7 Display reads (period) 3) Press 2 0 4 9 4) Press * The transmit and receive
frequency range is now set from 420 to 449.995 mHz Example:Program 400 to 479.995 mHz 1) Press F and 0 2)
Press 7 Display reads (period) 3) Press 0 0 7 9 4) Press *
Source QRZ: The Windows Ham Radio CDROM |
