YARD.EXE and YAWR.EXE will read and write from a YAESU radio.
Both were tested with vx-5r, ft-50 and vx-1r. Other radios may work. Please
let me know which other models it works with. I may be able to modify them a
bit to acommodate for more radios.

These programs are a basic tool to implement software mods and dissect the
clone data of these radios. Connect the radio to COM2 (if com1 is only
available, use yard1.exe and yawr1.exe), enter clone mode, start yard.exe
and start SEND on the radio. After a while, a window shoulkd display 'done'
and a RADIO.BIN file created. This file has the raw data from the radio,
followed by a short message "<<<RAW CLONE DATA BEFORE THIS - FOLLOWS SETS
OF BLOCK START POSITION (L,H), BLOCK LENGHT (L,H) AND CURRENT CHECKSUM
(L,H)>>>" which is followed by info on the blocks received from the radio.
The data prior to that message is strictly data generated by the radio, and
is made of internal settings, memory locations, all sorts of data exchanged
by radios in clone mode. In most radios, the first block of 10 bytes has a
model information plus jumper setting and country/band setting, which must
match the other radio for cloning to occur.

Data in RADIO.BIN can be edited and then uploaded to the radio by setting
it to CLONE WAIT mode and running YAWR.EXE. Some changes require to turn
the radio off and back on, others are only valid until the radio is turned
off (little usefulness), most are erased by ALL RESET. Some locations, on
some radios, have been reported as FATAL, meaning it is very hard to make
the radio even turn back on after an incorrect setting is applied, SO BE
VERY CAREFUL WITH WHAT YOU DO, PERFORM ANY EXPERIMENTS AT YOUR OWN RISK,
AND ONLY IF YOU CAN AFFORD TO PAY FOR RESTORING THE RADIO AT THE FACTORY.

Sometimes a radio may seem dead but it is simply the display settings that
were screwed up, it can still be turned off by removing the battery, then
turned back on with ALL RESET sequence. Sometimes that even won't work, but
turning it back on in CLONE mode and uploading a valid radio.bin file to it
might revive it, evn though it gives no life signals until reset.

Jose R. Camara
camaraya@quantacorp.com