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Icom IC-M3A Instruction Manual
Summary of IC-M3A
Page 1
Instruction manual im3a vhf marine transceiver this device complies with part 15 of the fcc rules. Operation is subject to the condition that this device does not cause harmful interference. Ic-m3a-(2) 01.12.5 4:19 pm page a (1,1).
Page 2
Ii foreword thank you for purchasing this icom product. The ic-m3a vhf marine transceiver is designed and built with icom’s su- perior technology and craftsmanship. With proper care this product should provide you with years of trouble-free operation. Important read all instructions carefully and co...
Page 3
Iii cautions rwarning! Never connect the transceiver to an ac outlet. This may pose a fire hazard or result in an electric shock. Rwarning! Never hold the transceiver so that the antenna is very close to, or touching exposed parts of the body, especially the face or eyes, while transmitting. The tra...
Page 4
Iv foreword ....................................................................... Ii important ........................................................................ Ii explicit definitions ..................................................... Ii features ...........................................
Page 5: Operating Rules
1 1 operating rules d priorities • read all rules and regulations pertaining to priorities and keep an up-to-date copy handy. Safety and distress calls take priority over all others. • you must monitor channel 16 when you are not operating on another channel. • false or fraudulent distress calls are...
Page 6: Panel Description
2 2 panel description ■ front panel q dualwatch /tri-watch switch [dw• tri ] • starts dualwatch when pushed momentarily. • starts tri-watch when pushed for 1 sec. • stops dualwatch/tri-watch when either is ac- tivated. W squelch switch [sql] • push this switch, then set the squelch level with the up...
Page 7: ■ Top and Side Panels
3 2 panel description ■ top and side panels q ptt switch [ptt] push and hold to transmit; release to receive. W volume control [off/vol] turns power on and ad- justs the audio level. E antenna connec- tor connects the supplied an- tenna. Q w e ï battery case release button to remove the battery case...
Page 8: ■ Function Display
4 2 panel description ■ function display q transmit indicator appears while transmitting. (p. 8) w busy indicator appears when receiving a signal or when the squelch level is set to the “off” position. (p. 8) e call channel indicator appears when the call channel is selected. (p. 9) r low power indi...
Page 9: Basic Operation
5 3 basic operation ■ channel selection d channel 16 channel 16 is the distress channel. It is used for establishing initial contact with another station and for emergency communications. Channel 16 is monitored during dualwatch/tri-watch. While standing by you are required to monitor channel 16. D ...
Page 10: ■ Lock Function
6 3 basic operation d weather channels there are 10 weather channels. These are used for monitor- ing weather channels from the noaa (national oceano- graphic and atmospheric administration) broadcasts. The ic-m3a can detect a weather alert tone on a selected weather channel while scanning. See the ...
Page 11
7 3 basic operation q rotate [off/vol] clockwise to turn power on, then set to the 10 o’clock position. - use the squelch function to mute any audio noise if necessary. Refer to the previous page for details. W push [ ]/[ ] to select the desired channel. - when receiving a signal, appears and audio ...
Page 12: ■ Automatic Backlighting
8 3 basic operation ■ call channel programming the call channel switch is used to select channel 9 by default, however, you can program your most often-used channels in each channel group for quick recall. Q push [ch/wx • u/i/c ] for 1 sec. Several times to select the de- sired channel group (usa, i...
Page 13: Dualwatch/tri-Watch
9 4 dualwatch/tri-watch ■ description dualwatch monitors channel 16 while you are receiving an- other channel; tri-watch monitors channel 16 and the call channel while receiving another channel. Dualwatch/triwatch simulation • if a signal is received on channel 16, dualwatch/tri-watch pauses on chan...
Page 14: Scan Operation
10 5 scan operation ■ scan types scanning is an efficient way to locate signals quickly over a wide frequency range. The transceiver has a priority scan and a normal scan. In addition, weather alert functions is available for standby convenience. (p. 13) set the tag channels (channels to be scanned)...
Page 15: ■ Setting Tag Channels
11 5 scan operation ■ setting tag channels for more efficient scanning, add desired channels as tag channels or clear tag channels for unwanted channels. Chan- nels set as non-tag channels will be skipped during scanning. Tag channels can be assigned to each channel group (usa, can, int) independent...
Page 16: Set Mode
12 6 set mode ■ set mode programming set mode is used to change the conditions of 6 transceiver functions: the beep tone function, the automatic backlighting, weather alert function, normal/priority scan, scan resume timer and power save function. Q turn power off. W while pushing [sql], turn power ...
Page 17
13 6 set mode d weather alert function “al” noaa broadcast stations transmit weather alert tones before important weather announcements. When the weather alert function is turned on, the transceiver detects the alert, then flashes the “alt” indicator until the transceiver is operated. The previously...
Page 18: Battery Charging
14 7 battery charging ■ installing batteries in the bat- tery case when using a battery case attached to the transceiver, install 6 aa(r6) size ni-cd or alkaline batteries as illustrated below. Q remove the battery case from the transceiver. W install 6 × aa(r6) size ni-cd or alkaline batteries. • b...
Page 19: ■ Battery Cautions
15 7 battery charging ■ battery cautions never incinerate used ni-cd batteries. Internal battery gas may cause an explosion. Never immerse batteries in water. If the battery case be- comes wet, be sure to wipe it dry before attaching it to the transceiver. Never short terminals of the battery case. ...
Page 20
16 8 supplied accessories and attachment d supplied accessories the following accessories are supplied: qty. Q flexible antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 w belt clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 e handstrap . . . . . . . . ...
Page 21: Troubleshooting
17 9 troubleshooting problem possible cause solution ref. No sound comes from the speaker. • squelch level is too deep. • volume level is too low. • speaker has been exposed to water. P. 6 p. 7 — • set squelch to the threshold point. • set [off/vol] to a suitable level. • drain water from the speake...
Page 22: Channel List
18 10 channel list channel number usa can transmit receive 01 156.050 160.650 01a 156.050 156.050 02 156.100 160.700 02a 03 156.150 160.750 03a 156.150 156.150 156.200 160.800 04a 156.200 156.200 156.250 160.850 05a 05a 156.250 156.250 06 06 156.300 156.300 156.350 160.950 07a 07a 156.350 156.350 08...
Page 23: Specifications And Options
11 19 specifications and options ■ specifications • general frequency coverage : transmit 156–157.5 mhz receive 156–163 mhz mode : fm (16k0g3e) channel spacing : 25 khz current drain (at 7.2 v) : tx high (5 w) 1.6a typical. Max. Audio 230 ma typical standby 60 ma typical power saved 20 ma typical fr...
Page 24
Ins count on us! 1-1-32 kamiminami, hirano-ku, osaka 547-0003 japan a-5479d-1us-w printed in japan copyright 1997 icom inc. Ic-m3a-(2) 01.12.5 4:19 pm page 20 (1,1).