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Icom IC-M802 Installing
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11January2015
Keys to Success to Installing the M802
For the typical cruiser the keys to success when installing an Icom M802 are simple. Utilize all
the information found in "Icom IC M802 Starting from Scratch" plus:
1. Install the AT140 Tuner as close to the Antenna as possible for a vertical run to the
antenna.
a. Unless you are a technical person, do not use a 3
operation later more difficult and limit help from other cruisers.
b. Selected only one type of RF ground and let it be the only connection to the
AT140 antenna tuner's ground lug.
2. Install the Transceiver
a. As close to the battery as possible.
b. Install the transceiver as far from the AT140 tuner as possible.
c. Make sure the transceiver has air flow possible.
d. If using the supplied power cable, install a MDL 30 fuse within 7 inches of the
battery connection. Keep the 30 amp fast blow fuse that is in-line with the
supplied cable at the transceiver.
e. If the distance is greater than 10 feet to the battery: Use number 6 wire and
connect to short piece of the supplied cable (within a foot). Install a 40 amp fuse
within 7 inches of the battery.
f. Only connect the tuner control cable green wire to the ground lug at the
transceiver.
g. DONOT CONNECT THE TRANSCEIVER TO THE BREAKER PANEL.
3. Don't forget the snap on ferrite cores listed in the book.
Note: The following slides are included from my Icom IC M802 Starting from Scratch all day
presentation. They are key points that will supplement the "Icom IC M802 Starting from
Scratch" book while you are installing and testing your installation.
rd
party products as it can make

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Summary of Contents for Icom IC-M802

  • Page 1 11January2015 Keys to Success to Installing the M802 For the typical cruiser the keys to success when installing an Icom M802 are simple. Utilize all the information found in “Icom IC M802 Starting from Scratch” plus: 1. Install the AT140 Tuner as close to the Antenna as possible for a vertical run to the antenna.
  • Page 2 11January2015 Use lots of Snap on cores to make sure the system works well.
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  • Page 12 If the OPC1107A is not long enough to reach the battery, (#6) wire has OK/NA been ran from the battery to the transceiver with a 40 amp fuse at the battery and the ICOM 30 amp fuse at the transceiver. OK/NA Battery Connections are crimped and soldered...
  • Page 13 Verify the ohm meter readings on the cable have been recorded and are OK/NA within specified values (Step 8 - Installing the Icom IC-M802) Verify every cable has some sort of ferrite cores installed on both ends: to/from the transceiver, modem and computer.
  • Page 14 Equipment List Icom IC M802 marine SSB transceiver and tuner Transceiver Unit Control Head Unit Microphone (HM-135 or equivalent) External Speaker (SP-24 or equivalent) Mounting Bracket kit for Transceiver (bracket and mounting bolts) Mounting Bracket kit for Control Head (MB-81)
  • Page 15 Metz DSC Antenna and mount with 30 ft. Cable & PL-259 Connector OK/NA One ferrite core for up to 17/64" size to be installed on the Metz antenna at the transceiver. OK/NA HF 23 foot fiberglass antenna and mount OK/NA GTO-15 antenna lead-in wire long enough to go from AT-140 Tuner to antenna OR Back Stay Antenna Modified Stay with 2 insulators installed...
  • Page 16 Use different meter if you suspect reading is false. 3. Verify tuner is operating – Listen to tuner when tuner is turned on. On most rigs such as ICOM this is when the transceiver is turned on. You should hear relays in the tuner make a click sound. This verifies the tuner is powered up.
  • Page 17 LED or CF lights, to watermaker controls. Most radios have signal strength indicators that are useful for measuring RF noise level. On the IC-M802 for example there is a bar graph in the lower left of the display. Under good noise conditions there should be only 1 or 2 bars illuminated when no one is transmitting.
  • Page 18 low. In most rigs you have 2 options, setting you tuner to the THROUGH mode (bypass), or you can tune on the new band. On the M802 through mode is F key then TUNE key.
  • Page 19 Optimizing SSB Receive rick medero 2015 Settings on your rig: 1. Turn squelch off. I have not found a squelch that works well with HF SSB. It can get to be tiresome listening to static but that is the nature of SSB. 2.
  • Page 20 22 March 2014 Discussion Testing your installation by checking the output of Icom IC M802 HF SSB radio is a simple process. You first need a wattmeter that will cover the full range of the IC M802 and the 150+ watts output signal.
  • Page 21 22 March 2014 Testing the IC M802 1) Select the frequency to test. 2) Listen for anyone using the channel. 3) Press the [THRU/TUNE] button while observing the watt meter. 4) Observe the LCD display on the IC M802. a) You will probably need a helping hand here as most transceivers are not installed close enough for one person to push the button and read the meter.
  • Page 22 Quick no meter Quick test. Individually Select 2A, 4A, 6A, 8A, 12A, 16A, 18A, 22A, 25A and complete the steps below: 1. Select Channel and make sure not in use. 2. Press [Set/Mode] button on to display “FSK” 3. Press [THRU/TUNE] button and make sure display indicates “TUNE”. (Signal Strength bar should indicate one bar while tuning) Press PTT on Microphone Signal Strength should be 8 signal strength bars if antenna system is tuning...