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Icom IC-F121 [20/24] I antenna
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17
4
CONNECTION AND MAINTENANCE
■ Antenna
A key element in the performance of any communication sys-
tem is an antenna. Contact your dealer about antennas and
the best places to mount them.
■ Fuse replacement
A fuse is installed in the supplied DC power cable. If a fuse
blows or the transceiver stops functioning, track down the
source of the problem if possible, and replace the damaged
fuse with a new rated one.
❑ Fuse rating: 20 A
■ Cleaning
If the transceiver becomes dusty or dirty, wipe it clean with a
soft, dry cloth.
AVOID the use of solvents such as benzene or
alcohol, as they may damage the transceiver sur-
faces.
IC-F111_F121_F211_F221.qxd 02.12.26 10:09 AM Page 17 (1,1)
Содержание
- Caution neve 2
- Explicit definitions 2
- Important 2
- Precaution 2
- R warning neve 2
- Read all instruction 2
- Save this instruction manual 2
- Operating the transceiver without running the vehi cle s engine the vehicle s battery will quickly run out if the transceiver transmits while the vehicle s engine off 3
- Placing the transceiver against walls this will obstruct heat dissipation 3
- Placing the transceiver in excessively dusty envi ronments 3
- Table of contents 3
- The supplied microphone only other microphones have different pin assignments and may damage the trans ceiver 3
- The use of chemical agents such as benzine or alco hol when cleaning as they damage the transceiver surfaces 3
- Use or place the transceiver in areas with tem peratures below 22 f 30 c or above 140 f 66 c or in areas subject to direct sunlight such as the dashboard 3
- I front panel 4
- Panel description 4
- I function display 5
- Panel description 5
- I programmable function keys 6
- Panel description 6
- Panel description 7
- Panel description 8
- Panel description 9
- I channel selection 10
- I turning power on 10
- Operation 10
- D transmitting notes 11
- I receiving and transmitting 11
- Operation 11
- D dtmf transmission 12
- D scrambler function 12
- D tx code channel selection 12
- D tx code number selection 12
- Operation 12
- D user set mode 13
- Operation 13
- D calling another local system subscriber 14
- D placing a telephone call 14
- D receiving a call 14
- I smartrunk ii and conventional modes 14
- I smartrunk ii operation 14
- Optional smartrunk ii operation 14
- D clear channel alerting 15
- D emergency call 15
- D last number re dial 15
- D memory speed dialling 15
- D programming memory speed dial 15
- D ptt dispatch operation 15
- D system busy indication 15
- D terminating a call 15
- D turbo speedial 15
- Optional smartrunk ii operation 15
- Connection and maintenance 16
- I rear panel and connection 16
- Connection and maintenance 17
- E dc power receptacle connects to a 12 v dc battery pay attention to polarities never connect to a 24 v battery this could damage the transceiver 17
- I supplied accessories 17
- Q antenna connector connects to an antenna contact your dealer about an tenna selection and placement 17
- R optional cable opc 617 connect an external modem unit dimmer control etc 17
- T external speaker jack connect a 4 8 ω external speaker if desired 17
- W microphone hanger connect the supplied microphone hanger to the vehicle s ground for microphone on off hook functions see p 2 17
- Connection and maintenance 18
- I mounting the transceiver 18
- I optional ut 105 ut 108 or ut 111 installation 18
- Connection and maintenance 19
- I optional opc 617 installation 19
- I optional ut 109 or ut 110 installation 19
- Install the opc 617 as shown below 19
- Q turn the power off then disconnect the dc power cable w unscrew the 4 cover screws then remove the bottom cover e cut the pattern on the pcb at the tx mic circuit mic and rx af circuit disc as shown below r install the scrambler unit as described in the installation of optional ut 105 ut 108 or ut 111 as on the page at left t replace the bottom cover and screws 19
- Connection and maintenance 20
- I antenna 20
- I cleaning 20
- I fuse replacement 20
- Options 21
- Electromagnetic interference compatibility 22
- Safety training information 22
- 1 32 kamiminami hirano ku osaka 547 0003 japan 24
- Count on us 24
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