The VX-1R Software and Hardware mods ( Version 1.00, Date: 14.11.97 ) ===================================================================== Some time ago some mods for the VX-1R from YAESU were released on the Net (Solder Jumpers 0 and 1). In the US they are working (because by accident you switch to the FreeBand Country Code 000 (US is 011), ARS is disabled) but in Germany (Country Code 101) with soldering Jumper 0 (1 already soldered) you Switch to Country Code 100 and get something totally different :) You don't understand ?, keep reading :) In the following Text the meaning of the 6 Jumpers is explained and I present the Software mods for the VX1R. This is very simple, fast and easy done, you just have to change 1 (one) byte in your .TPL file, you don't even have to open the VX1R but you need the VX-1R Programmer from the ADMS 1D Software Package. After I have released the Software mods for the FT50R, there was a lot of confusion, there were to many terms like Key_Byte, Band-Set_Byte, Sub_Band-Set_Byte, ... to many addresses , .... This time I will not go into details, and will try to keep it as simple as possible, ONE Address and a Band_Set-Byte only. The Band-Set_Byte is identical to the 6 Jumpers on the VX-1R: Jumper 0 = Country CODE 1st bit ---------------------+ Jumper 1 = Country CODE 2nd bit -------------------+ I Jumper 2 = Country CODE 3rd bit -----------------+ I I Jumper 3 = WIDE TX ----------------------------+ I I I Jumper 4 = CELLULAR -------------------------+ I I I I Jumper 5 = WIDE RX ------------------------+ I I I I I I I I I I I Band-Set_Byte (8 bits) = 1 1 X X X X X X I I Reserved Country Code 2 1 0 VHF TX UHF TX VHF Auto rep. Shift UHF Auto rep. Shift --------------------------------------------------------------------- 0 0 0 Free* Free* none none 0 0 1 144-146 430-440 145.600-145.800 -0.6 433.000-433.375 +1.6 0 1 0 144-148 430-450 146.605-147.000 -0.6 438.025-438.725 -5.0 147.005-147.395 +0.6 439.275-439.975 -5.0 0 1 1 144-148 430-450 145.100-145.495 -0.6 440.025-444.975 +5.0 146.000-146.395 +0.6 445.025-449.975 -5.0 146.600-146.995 -0.6 147.000-147.395 +0.6 147.600-147.995 -0.6 1 0 0 144-146 430-440 none none 1 0 1 144-146 430-440 145.600-145.800 -0.6 438.200-439.425 -7.6 1 1 0 144-146 432-438 145.600-145.800 -0.6 433.000-433.375 +1.6 1 1 1 144-146 430-440 none 439.000-440.000 -5.0 *Free (TX: 108-222 and 300-560) BC Band - No TX FM - No TX AIR - Full TX V-HAM - Full TX VHF-TV - Full TX ACT 1 - 300-420 U-HAM - Full TX UHF-TV - 470-560 (approximate 562-565) ACT 2 - No TX WIDE TX ( enable 1, disable 0 ) --------------------------------------------------------------------- Enable/disable WIDE TX from 140-170 and 420-470 (MARS/CAP) CELLULAR ( enable 1, disable 0 ) --------------------------------------------------------------------- Enable/disable the range 824-849 and 864-894 WIDE RX ( enable 1, disable 0 = see below) --------------------------------------------------------------------- BC Band - Enabled FM - Enabled AIR - Enabled V-HAM - RX Enabled only in TX range according the country code. VHF-TV - Enabled ACT 1 - Disabled U-HAM - RX Enabled only in TX range according the country code. UHF-TV - Enabled ACT 2 - Disabled You can make the mods by Hardware (solder the Jumpers) and call the INIT routine (hold down AR and M/V at powering on, and press FW) or by Software, you need the VX-1R Programmer and you have to change only 1 byte (a 10 seconds job) in the .TPL file, no Init is required. The results with the Hardware and/or Software mods are 100% identical and 100% reversible. The only difference is that with the Software mod you will switch back to your Hardware Configuration by calling the INIT routine. According to some messages in the past days, YAESU is removing the diodes from the VX-1R to disable the Hardware mods, so the Hardware mods may not work in the future Versions of the VX-1R, then the Software mods will be the only Solution. If you are using Hardware mods, note: 1=JumperOpen, 0=JumperClosed If you are using the Software mods, it is not importuned what Hardware configuration you have (read: mods you have done), you can simply switch to ANY configuration. Example: 7 6 5 4 3 2 1 0 (Jumpers/Bits) Bits 7 and 6 are reserved 1 1 Enable Wide RX 1 Enable Cellular 1 Enable Wide TX 1 German 1 Country 0 Code 1 ---------------------------------------------------- Band-Set-Byte 1 1 1 1 1 1 0 1 = FD (HEX Number) Well, make now a .TPL file and change with a HEX editor the Byte on address 114C to be FD, upload this .TPL to the VX1R, done. So, I thing the mods are understandable now, with this method you can configure the VX1R exactly according your needs. The most used mod will probably be to enable WIDE TX, so the Auto Repeater Shift is still working, the TX outside the WIDE TX (with the FreeBand Country Code 000) is anyway only in miliwatts in VHF (not useful) and a little bit better in the UHF range 340-420. A wise solution may be, not to make any Hardware mods. You make the Software mod (Enable WIDE TX or FreeBand) and in a emergency you can switch to the unmodified (factory) configuration by the INIT routine in just 1 second (hold down AR and M/V at powering on, and press FW) You know, just in case ... That's all folks, for now :) , there are some other interesting things, but I want to experiment a little more before I release them. If you have any Questions, Email me. 73's to all. PS. - Thanks to Mark Russo for his great Help, ... - Greetings to all my Friends in Skopje, Mazedonia. - CQ CQ CQ Z3HAN, still ill ?, you should eat Cheese from Berovo :)