Icom IC-F521 Instruction Manual page 9

[ID MR] ID MEMORY READ KEY
Recalls detected ID codes.
• Push this key, then push [
• Up to 5 ID's are memorized.
Push and hold this key to erase all memorized
IDs.
[GRP] TRUNKING GROUP KEY
Push to select the Trunking group.
[COMP] MIC COMPANDER KEY
Push to toggle the mic compander function ON
or OFF.
[SET] USER SET MODE KEY
Changes the contents of the items in the User
Set mode.
• Push and hold [SET] for 1 sec. to enter set
mode, push [SET] momentarily to select the
item. Push [
level/condition.
Push and hold [SET] again to exit set mode.
• User set mode also available via the 'Power ON
function'. Please refer p. 10 also.
]/[ ] for selection.
] and [ ] to set the desired
PANEL DESCRIPTION
[SCRM] SCRAMBLER KEY
• Push and hold to turn the voice scrambler func-
tion ON.
• Push to turn the voice scrambler function OFF.
NOTE:
• Optional UT-109 (#02) or UT-110 (#02) VOICE
SCRAMBLER UNIT is required.
- UT-109: Non-rolling type. 32 codes are available.
- UT-110: Rolling type. Provides higher communica-
tion security. 1020 (4 groups × 255) cods are avail-
able.
• This transceiver requires version #02 unit, do
not install version #01, as they are not compat-
ible.
• UT-109 and UT-110 require some PC board
modifications. Please refer 'I Optional UT-
109/UT-110 installation'. (p.17)
• Please contact your Dealer for details.
1
6