![]() On Mon, at 12:43 AM Dave AA6YQ wrote: Yes I did find the HRD notifiocation regarding removing the agc etc commands at Yaesu's request due to them apparently damaging a ram chip (I think). Rig ControlHam Radio Deluxe: Rig Control provides rig control through a richly featured full screen interface and other products in the. ![]() The five modules in the suite provide rig control,logging, digital communications, satellite tracking, and rotator control. Then he expanded the program to control other radios. The author originally created an application to control the FT-817 QRP radio from Yaesu. Doesnt cost anything right Lets take a look at Ham Radio Deluxe. By then, the EEPROM was no longer available, and Yaesu had exhausted its inventory. Ham Radio Deluxe (HRD) is an integrated suite of software products for amateur radio. Ham Radio Deluxe/DM-780 Ham Radio Deluxe (HRD)/DM-780 is quite a bit more than just a digital mode application. Transceiver control applications that used the undocumented instructions to frequently modify that additional radio state eventually wore out the EEPROM, bricking the radio. + The EEPROM - "Electrically Erasable Programmable Read Only Memory" - used in these radios has a lifetime limit on updates - clearly stated in its spec sheet. + This led to similar discovers for the FT-857 and FT-897. ![]() Rick Ruhl is the president of W4PC Software, Inc whose products. All three principals have more than 25 years of experience with radio data communications. + These undocumented instructions made it possible for transceiver control applications to track and modify that additional radio state. Simon Brown, HB9DRV, has sold the rights to his popular Ham Radio Deluxe software package to a group consisting of Mike Carper, WA9PIE, Randy Gawtry, K0CBH and Rick Ruhl, W4PC. + Many years ago, KA7OEI discovered an undocumented pair of instructions for reading and writing the FT-817's EEPROM, and discovered the locations in that EEPROM that controlled radio state not accessible via its documented CAT instruction set: color tv, electronic organs, guitar amplifiers, ham radio, marine, CB. Yes I did find the HRD notifiocation regarding removing the agc etc commands at Yaesu's request due to them apparently damaging a ram chip (I think).
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