IC7100 Mods

The Firmware Upgrade makes the radio meter show more power, but only slightly affects the output. Doing the Jumper Mod will give you a easy 100 watts PEP. Doing the Capacitor Mod also, will give you approx 130 watts PEP, but is "NOT" for anyone to do that is not experience in working with SMD, since everything is so small and close together.

As you can see above, the chip capacitors, 1508, 1509, and 1510 are all paralel , so exactly where the jumper is placed at the ends of them does not matter. The small point marked with the red 1 in the above photos is perfect.



The Mars Mod








This will take care of any of your HF or UHF Mars
needs, and any new bands added in the future.

Using one, or both of these sure helps. Cheap at Harbor Freight.

      

If you do not have the proper size soldering iron, or do not feel comfortable removing the diodes with one, you can use a Small pair of diagonal cutters, and remove the diodes by placing the cutters in the recess corners of the diodes on the spots shown, and give a squeeze. They cut very easy with a good small set of cutters.

Both of these modifications are done by first removing the bottom of the radio. Make sure the power cord is removed before doing any of this, and you turn it upside down and blow out particals from the diodes. When you have completed the work, use your magnifying glass to inspect the area where the diodes were, to make sure no pieces remain. No reset is required. When you power it up, the little box around the TX on the front should now be solid, instead of dash marks, which means it has expanded transmit now.

Mods for the IC 706mk2 Radio

Mods for the IC 7300 Radio

Mods for the TS890S Radio

My 40m Wire Yagi