Modifications for the ICOM - RogerK

23-01-1999(IC-2SE) Extended Icom IC-2SE functions'LIGHT+FUNC'& SWITCH ON: Display test'LIGHT+FUNC+V/M & SWITCH ON: Extended frequency range, 0 - 1310MHz,enters multi function mode with new PTstatus 'bA' for receive only, see PTTfunction table below for detailed operation.Tuning steps above 204MHz only 12.5KHz or25KHz (channel number indicator changes fromU to last ch. no.??)'LIGHT+FUNC+C' & SWITCH ON: Changes PT from 'bA' to 'P' and enters multifunction mode.PTT function tablePT status P PL bASimple Mode:~~~~~~~~~~~(- TX, 144-146 TX, 144-146 (*) TX, 144-146P - selects -( 'o.FF' other 'o.FF' other 'o.FF' other(- --- --- ---F&P - selects pwr low beep@ pwrMulti Mode:~~~~~~~~~~(- TX, 144-146 low beep, high beep,P - selects -((- --- frequency 100MHz stepsF&P - selects pwr low beep AM/FM toggleNotes:P stands for pushing the PTT switch, table shows in 2nd row also the result of simultaneous rotation of the tuning control, --- =no reaction.F&P stands for pushing FUNC,PTT; pwr stands for low/high toggle and for stepping by tuning control, ref. to Instruction Manual.- PT status selection via SET/PRIVATE mode, ref. to Instruction Manual.- PT status 'bA's only available for extended frequency range (after execution of 'LIGHT+FUNC+V/M' & SWITCH ON), memorycontents remain unchanged (approx. working range of ext. band is 75...365MHz).- Amateur frequency range can only be recovered by 'RESET', => 'LIGHT+MON' & SWITCH ON, all memory contents will be lost!(*) THIS OPERATION IS NOT IN ACCORDANCE WITH INSTRUCTION MANUAL, P. 30 - PL SHOULD LOCK PTT (TX DISABLED)ALSO IN SILE MODE!Information was gleaned from many sources including DL8AAR, PA3FDAThis modification is read 760 times.top of page23-01-1999(IC-2SE) Extending the Rx. coverage of the IC-2SE and IC-4SEIt is possible to extend the receiver coverage of both of the above radios without removing the covers!With the radio turned off, but beep enabled, hold down LAMP, FUNC and V/M buttons while simultaneously turning on the radio.Keep all 3 buttons pressed. The display will fill up with all sections on, then there will be a beep, a longish gap and another beep.Once the second beep is over, release the buttons.Lo and behold, you now have coverage of any freq from 0 to 1300 MHz, except, of course, that the VCO cannot cover the entirerange. For example, the 4SE will cover approximately 380 to 480Mhz plus 805 to about 930MHz.Information originated from G8SEZ