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- From philabs!philmtl!uunet!samsung!zaphod.mps.ohio-state.edu!sdd.hp.com!hplabs!hpcc01!col!kenw Sat May 19 00:07:23 EDT 1990
- Article 21146 of rec.ham-radio:
- Path: philabs!philmtl!uunet!samsung!zaphod.mps.ohio-state.edu!sdd.hp.com!hplabs!hpcc01!col!kenw
- >From: kenw@col.hp.com (Ken Wyatt)
- Newsgroups: rec.ham-radio
- Subject: IC-24AT Receive Mods
- Message-ID: <24300004@col.hp.com>
- Date: 17 May 90 15:54:21 GMT
- Organization: HP Colorado Springs Division
- Lines: 56
-
- At the request of several interested hams, I am posting the modification
- instructions for the Icom IC-24AT. This set of instructions originated
- from Icom America and was downloaded from the Icom Library of HamNet
- (Compuserve).
-
- Ken WA6TTY (kenw@col.hp.com)
- -----------------------------------------------------------------------
-
- IC-24AT Undocumented Features - (from ICOM)
-
-
- The IC-24AT dual band handheld had three additional features that
- are not described in the owners manual. These have been left out
- of the owners manual because some countries restrict the use of
- the radio in these modes.
-
-
- AM AIRCRAFT RECEIVE PLUS 740 to 960 MHz RECEIVE
-
- Remove D13 from the main logic board (this diode may already be
- removed by ICOM in some units). This diode may already be
- removed in some radios. D13 is on the main logic board and is a
- discreet diode (one of the two in the radio) near the center of
- the board. It is the left discreet diode of the two on the board
- when the radio is open and held with the controls away from you.
-
- Simultaneously hold "Light", "B", and "#" keys depressed and turn
- power on.
-
- It is important to note that the radio will not meet specifica-
- tion on the out of band receive frequencies that are enabled with
- this modification.
-
-
- DIRECT KEYBOARD ENTRY of 100 MHz FREQUENCY
-
- Simultaneously hold "Light" and "3" keys depressed and turn power
- on.
-
-
- CROSS BAND REPEAT (simplex)
-
- Remove D14 from the main logic board (this diode may already be
- removed by ICOM in some units). The diode is a discreet diode to
- the right of D13 (from above) and directly beside it.
-
- Simultaneously hold "Funct" depressed and push "C".
-
- To turn on cross band repeat:
- Hold "Funct" depressed then push "5" and then push "D".
-
- To turn off cross band repeat simultaneously hold "Funct" and "D"
- depressed.
-
-
- 2-14-90
-
-
-
-
-