10.  
RTN soft key -Push, until COM SUM screen appears.

Communicate using ALE:
11.
ICS transmitter selector -Position 5, and radio push-to-talk switch -Press. CALLwill appear under the COM 5 band annunciator, which will change to LINK when the ALE link is estab-lished.

12.
Radio push-to-talk switch  -Press to talk; re-lease to listen.

Receive, using ALE:
13.
After ALE is setup if another station calls, INCM-CAL will appear on CDU status line, a tone will sound in the headsets, and the annun-ciator under band for COM 5 will change to LINK.

14.
ICS transmitter selector -Position 5.

15.
Radio push-to-talk switch  -Press to talk; re-lease to listen.

3.9.3.5 Edit or Make Frequency Into PRESET.
1.  
DAT .xed function key -Press, to access MIS-SION DATA screen, then COMM soft key, to access COM PRESET screen.

2.  
HF,or HF-MRN soft key -Press, to access desired preset screen.

3.
Use  PREV/NEXT rocker switch to display preset to change. Select .elds to edit with soft key, enter new values in scratchpad and press ENT to change displayed values.

3.9.4 Messages. The following display advisory mes-sages may appear during operation of the radio:
Table 3-2. AN/ARC-220 Messages

ERROR  MESSAGE  ACTION 
ALE -NO DATA ALE -NO KEYS CALL FAIL CALLING CHANNEL BUSY  ALE mission data not loaded. ALE link protection keys not loaded. Radio failed to complete an outgoing call. Radio is placing an ALE call to another address. ALE or ECCM net is in use.  Load mission data. Wait or try another net. 

Table 3-2. AN/ARC-220 Messages (Cont)
ERROR MESSAGE ACTION
CHANNEL INOP  ALE or ECCM keys are not loaded, or not correct. 
COPY COMPLETE  Copying process .nished successfully. 
COPY FAIL  Copying process was unsuccessful. 
COPYING DATA  The radio is copying data.ll contents from DTS. 
ECCM -NO DATA  ECCM data not installed. 
ECCM -NO KEYS  ECCM keys not installed. 
EMERG  Mode or net selected for emergency communica-
tion is inoperative. 
EMERG -NO KEYS  No keys available for net selected for emergency 
communication. 
EOM  End of message. 
EXT FAIL  Radio failed due to external device, such as an-
tenna. 
GO DATA  Link quality analysis values too low for reliable 
voice communication; data transmissions recom-
mended. 
GPS FAIL  Position report could not be issued. 
GPS TIME FAIL  Radio not receiving time signals from GPS. 
HELD  ALE call being held in speci.c frequency by op-
erator. 
INCOMING CALL  Another radio is establishing an ALE link. 
INOP MODES EXIST  Warning to expect inoperative modes. 
LINKED  An ALE link is established. 
LOAD COMPLETE  Keys and data successfully loaded into radio. 
LOAD FAIL  Keys and data not successfully loaded into radio. 
LOADING DATA  Radio currently loading data. 
LOADING KEYS  Radio currently loading keys. 
MSG ABORT  Radio discontinuing sending of current message. 

Table 3-2. AN/ARC-220 Messages (Cont)
ERROR MESSAGE ACTION
NET INOP  Selected net contains no data, corrupted data, or 
hardware cannot support the selected mode of op-
eration. 
NO AUTO XMT  Radio has been instructed not to make any auto-
matic transmissions. 
NO DATA  Database is not .lled with necessary data to per-
form requested operations. 
NO KEYS LOADED  Keys are not loaded for current selected mode or 
　
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