YAESU FT-727R Modification for extended coverage. (This will work for both the old and new CPU versions) -Remove the battery pack -locate the RAM backup switch according to your manual ( this will be the switch FARTHEST away from the battery terminals) -Turn the switch off, count to 4, then turn it back on -Relace the battery pack -Turn the rig on. The readout should be entirely blank. If it is not, you probably did not wait long enough before turning the switch back ON, so repeat the above procedure. -Type in the following: ' 001111 ' -The rig should now come to life. You will have to reprogram all the memories as well as the repeater splits for both bands. The display will now cover 100-199, 400-499MHz, but it obviously won't work over this range. Mine covers 139- 153, 420-460. - The reset code is in your manual [ From another source: The factory code to make the program from the factory is ( 443300 ) and if you enter those digits the talkie will return to normal again. However if you enter the code ( 601111 ) you will notice the talkie will come up in a different mode you can and must input 5 digits instead of 4 to input a freq. Example in the normal mode to get freq 147.06 you would enter 7060 then hit the dial button. In the expanded mode you would enter 47060 to get the 147.06 cause your display now takes and controls the last 5 digits of a freq instead of the normal 4. ]  Msg Nr. : 130084 Da : IW3GRX Per : MODS Tipo/status : PN Data/ora : 1226/2314 Dimensione : 3890 Bid (Mid) : 64548_IW3GRX Titolo : Alcune modifiche per l' FT727 CPU MODS FOR THE YAESU FT-727R HANDHELD By Mark Huff, WA4DHY Here are the CPU "modifications" known for the YAESU FT-727R handheld. As the one that most are interested in is the extended (out of band) coverage mod, here's how to "open up" your FT-727R step-by-step. (NOTE: The following instructions for extended coverage will work for both the old and new CPU versions.) 1. Remove the battery pack. 2. Locate the RAM backup switch according to your manual (this will be the switch FARTHEST away from the two small battery terminals). 3. Turn the switch off, count to 5, then turn it back on. 4. Slide the battery pack back onto the handheld. 5. Turn the handheld on. The readout should be entirely blank. If it is not, you probably did not wait long enough before turning the switch back ON, so repeat the above procedure. 6. Key in the following on the Keypad: 001111 The rig should now come to life. You will have to reprogram all the memories, as well as the repeater splits (shifts) for both bands. The display will now cover 100-199, and 400-499 MHz, but it obviously won't work over this entire range due to the inherent limitations of the circuitry. Coverage will be around 139-159, and 420-461 MHz. Also note that you must enter frequencies from the second (tens MHz) digit on. (I.E. Before the mod, getting to 146.88 MHz meant entering "6880" or "688D". After the mod you must enter "46880" or "4688D".) The reset code, to place the rig back to U.S. ham band coverage only, is 007777. ADDITIONAL STUFF There are additional CPU codes for the FT-727R, which can be used to modify it's performance in several ways. Here are all the known codes, and how they affect the handheld. They have only been tested (with the exception of "001111") on the new CPU (late-1987 and later) model of the FT-727R: 001111: Extended frequency coverage setting. Will tune 100-199 and 400-499 MHz, but actual operating coverage is more limited (typically 139-159 and 420-461 MHz). Steps available are 5/10 KHz on VHF, and 12.5/25 KHz on UHF. Shifts on both bands are empty (0.0) by default and must be reprogrammed. 003333: Use for this setting is unknown. Coverage is 144-154 and 430-440 MHz. Steps of 10/20 KHz are available on both VHF and UHF. Although coverage goes above 150 MHz, only keyboard entry from the one MHz digit on is available. On VHF, to go above 149.990 MHz, you must start from the upper reaches of 149 MHz and scan up above 150 MHz. Shift on VHF comes up empty (0.0), but UHF has default shift of 5.0 MHz. 005555: Possible Region 3 setting. Turns handheld into the "B1" model. Coverage is 144-148 and 430-440 MHz, with steps of 12.5/25 KHz on both VHF and UHF. Shifts are 0.6 MHz on VHF, and 7.6 MHz on UHF. 007777: Standard Region 2 (U.S.A. and Canada) setting. Makes handheld the "A" model. Coverage is 144-148 MHz on VHF, and 440-450 MHz on UHF. Frequency steps available are increments of 5/10 KHz on VHF, and 12.5/25 KHz on UHF. Shifts are 0.6 MHz on VHF, and 1.6 MHz on UHF. 009999: Region 1 (European and African) setting. Sets handheld to the "B" model. Coverage is 144-146 MHz on VHF, and 430-440 MHz on UHF. Both the VHF and UHF bands have frequency steps of 12.5/25 KHz. Default shifts are 0.6 MHz for VHF, and 1.6 MHz for UHF. Any of these codes can be entered into the CPU by following steps 1 through 6 on the previous page, substituting the code entered in step 6 with any of the above codes. No doubt more codes exist, but these are all that have been heard of to date. 73, Mark Huff, WA4DHY