kd7nmn
06-04-2007, 09:31 PM
I would like to do the MARS/CAPS mod on my radio and need to know if I'm looking at what I should be here. I've heard conflicting stories on modding for MARS/CAPS so I will check legality before I continue. Here are the directions and the pictures.
To get open band tx & Rx from 137MHz to 174MHz follow the procedures.
*
Remove the caution seal( it is under the battery place)
*
Find the two zero ohm resistor in the mid point between the two connector near the pcb gap, some times the upper resistor will be opened
*
Remove the two resistance
*
Put back the caution seal and the battery
*
press and hold the ptt switch and lamp switch and switch on the radio
*
The radio will write SETRST on the lcd
*
Rotate the dial knob to ALLRST and press F
*
The radio modified
http://www.theprepared.com/images/mods/yaesu/vx170/vx-120_trx_mod.jpg
http://www.theprepared.com/images/mods/yaesu/vx170/3226_Vx-170.jpg
In this picture I circled what I think they are talking about.
http://www.theprepared.com/images/mods/yaesu/vx170/3226_Vx-170cir.jpg
To get open band tx & Rx from 137MHz to 174MHz follow the procedures.
*
Remove the caution seal( it is under the battery place)
*
Find the two zero ohm resistor in the mid point between the two connector near the pcb gap, some times the upper resistor will be opened
*
Remove the two resistance
*
Put back the caution seal and the battery
*
press and hold the ptt switch and lamp switch and switch on the radio
*
The radio will write SETRST on the lcd
*
Rotate the dial knob to ALLRST and press F
*
The radio modified
http://www.theprepared.com/images/mods/yaesu/vx170/vx-120_trx_mod.jpg
http://www.theprepared.com/images/mods/yaesu/vx170/3226_Vx-170.jpg
In this picture I circled what I think they are talking about.
http://www.theprepared.com/images/mods/yaesu/vx170/3226_Vx-170cir.jpg