FTM-400XDR Extended Transmit Mod [Memory Fault]

We recently modified a Yaesu FTM-400XDR transceiver for out-of-band transmit coverage. This will VOID your radio's warranty. This should not be done unless you're experienced with soldering extremely small components as well as having a license and permission to transmit on other parts of the band. Other instances may include GMRS, Public Works, Radio Remote Pickup, etc. ***Each of these services requires its own license and you must adhere to their own rules. Do this at your own risk***. We will not be showing you how to do this, only helping the Memory Error after completion. 

1. Copy your data from your radio to an SD Card under the settings menu. 

2. Read your data from an SD Card via RT Systems Software, then save to your PC.

3. Remove the appropriate diode
​*at your own risk

4. Power up your radio, format your SD Card (inside your radio via the front panel), then copy the current settings to the SD Card again. 

5. Insert the SD Card into your PC, then "Read from SD Card" in RT Systems Software. (You'll notice there are only 1 or 2 pre-written channels since your radio has been factory reset)

6. Copy and Paste your memory channels from the old config file to the new config file. Your old config file cannot be written to the radio after the modification, only the new config file you read from the radio can be edited and exported. 

7. Now copy that data to your FTM-400. Your radio should read this new format.