FT-411 Modification FT 411 OUT OF BAND MODIFICATIONS. --------------------------------- 1) Open the front cover 2) Locate the C.P.U. unit (it is located on the front cover ). 3) Locate Jumpers 1,2,3 and 4 , These are the band setting Jumpers 4) Jumpers No 1, 2 and 4 should be disconnected ,and Jumper No 3 should be connected. 5) Close the radio . 6) Apply power to the radio and turn it on. The display will initialize with memory No 1 flashing and the frequency display will show 1.000 7) Now , adjust the display to the desired lowest receive frequency. When done ,press VFO. The memory CH will now show 2 flashing. 8) Adjust the display to the desired highest receive frequency. When done press VFO. The memory CH will now show 3 flashing. 9) Adjust the display to the desired lowest transmit frequency. When done ,press VFO. The memory CH will now show 4 flashing 10) Now , adjust the display to the desired highest transmit frequency. When done ,press VFO. The rig is now set for your programed band on transmit and receive. COMMENTS ------- 1) After the rig was programmed to the band and you want to change it to other ranges you will have to open the rig again and disconnect Jumper No 3 then to apply power to the radio, turn it on again open it again ,connect Jumper No 3 back and repeat from steps 5. Any comment and other information would be appreciated. disclamer: I have not tested or verified the above, proceed at your own risk. WA2ISE ft411.5 RECENTLY I SAW A MOD COME ACROSS THE SYSTEM ABOUT THE YAESU 411E PTT LOCK. THE SAME MOD IS AVAILABLE ON THE 411. JUST TURN OFF THE RADIO. HOLD THE PTT BUTTON AND THE #6 BUTTON WHILE TURNING ON THE RADIO. PRESS FM THEN 6. PRESS FM THEN 6 AGAIN THE LOCK AND THE PTT ICON WILL NOW BE ON. THATS ALL THERE IS TO IT! TO TURN IT OFF JUST PRESS FM 6. ENJOY 73 DE BOB KB8GNF Msg Nr. : 129748 Da : CT1ENI Per : MODS @WW Tipo/status : BF Data/ora : 1225/2320 Dimensione : 2717 Bid (Mid) : 266_CT1ENI Titolo : MODS for FT-411/811 Hello, TNX for reading this MSG. I hope it can be usefull. To allow this TRX for a VHF UHF general cover, do the following mods : 1ø) Remove the front panel. 2ø) Look for the first part where the Lithium battery is connect there are 8 connectors like : ÜÜ Ü Ü Ü Ü Ü Ü Ü Ü ÜÜ Ü Ü Ü Ü Ü Ü Ü Ü ÛÛ Ü Ü Ü Ü Ü Ü Ü Ü ----------> FT-411 ÛÛ Ü Ü Û Ü Ü Ü Û Ü 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 ÜÜ Ü Ü Ü Ü Ü Ü Ü Ü ----------> FT-811 ÛÛ Ü Ü Û Ü Ü Ü Ü Ü 1 2 3 4 5 6 7 8 To validate the micro controller, do next : For the FT-411 : RX 120 - 174 Mhz TX 140 - 174 Mhz 1ø) Reset the TRX by switch on it with [MR] and [VFO] key down. 2ø) Type 1200 [VFO] 1740 [VFO] 1400 [VFO] 1740 [VFO] 3ø) Press the [F] and [7] keys tho change the QSY step. BE CARREFULL, with this few mods, the TRX looses the automatic AM detection. For the FT-811 : RX 420 - 470 Mhz TX 420 - 470 Mhz Do the same but step 2 is different : 1ø) Idem 2ø) Type 4200 [VFO] 4700 [VFO] 4200 [VFO] 4700 [VFO] 3ø) Idem Good QSO's... 73's de CT1ENI - Portugal - 10 meters Network (28.125 300bauds) - - Qth: ALmada IM58KQ - Msg Nr. : 135515 Da : IW3GRX Per : MOD Tipo/status : PN Data/ora : 0108/1655 Dimensione : 7428 Bid (Mid) : 4443_IW3GRX Titolo : Alcune modifiche per l'FT411 ***************************************************************************** FT-411 OF YAESU, I have this Hand held, and by playing with it, I discovered anice trick to increase it frequency coverage. It is so simple that you don't even have to open your hand held. All you have to do is: 1. Make sure that the power switch is off. 2. press the UP arrow and DOWN arrow together, at the same time (those keys are also called A, and B. and they placed at the upper right side of the keyped) 3. Keep pressing both buttons and turn the power on. That's all. Now you can receive 130-174Mhz, and transmit 140-150Mhz CAUTON: When you do this modification the memories can be erased. Ayhow I think it is not the end, and there are some more options. If you do have some more information about this Hand held, Please leave me a msg with it. FT 411 mods Here is some new interesting info about the FT-411: FT 411 OUT OF BAND MODIFICATIONS. --------------------------------- 1) Open the front cover 2) Locate the C.P.U. unit (it is located on the front cover ). 3) Locate Jumpers 1,2,3 and 4 , These are the band setting Jumpers 4) Jumpers No 1,2 and 4 should be disconnected ,and Jumper No 3 should be connected. 5) Close the radio . 6) Apply power to the radio and turn it on. The display will initialize with memory No 1 flashing and the frequency display will show 1.000 7) Now , adjust the display to the desired lowest receive frequency When done ,press VFO. The memory CH will now show 2 flashing . 8) Adjust the display to the desired highest receive frequency When done press VFO . The memory CH will now show 3 flashing . 9) Adjust the display to the desired lowest transmit frequency When done ,press VFO. The memory CH will now show 4 flashing 10) Now , adjust the display to the desired highest transmit frequency When done ,press VFO. The rig is now set for your programed band on transmit and receive. COMMENTS ------- 1) After the rig was programmed to the band and you want to change it to other ranges you will have to open the rig again and disconnect Jumper No 3 then to apply power to the radio ,turn it on again open it again ,connect Jumper No 3 back and repeat from steps 5 . ****************************************************************************** ***************************************************************************** FT 411 OUT OF BAND MODIFICATIONS. --------------------------------- 1) Open the front cover 2) Locate the C.P.U. unit (it is located on the front cover ). 3) Locate Jumpers 1,2,3 and 4 , These are the band setting Jumpers 4) Jumpers No 1,2 and 4 should be disconnected ,and Jumper No 3 should be connected. 5) Close the radio . 6) Apply power to the radio and turn it on. The display will initialize with memory No 1 flashing and the frequency display will show 1.000 7) Now , adjust the display to the desired lowest receive frequency When done ,press VFO. The memory CH will now show 2 flashing . 8) Adjust the display to the desired highest receive frequency When done press VFO . The memory CH will now show 3 flashing . 9) Adjust the display to the desired lowest transmit frequency When done ,press VFO. The memory CH will now show 4 flashing 10) Now , adjust the display to the desired highest transmit frequency When done ,press VFO. The rig is now set for your programed band on transmit and receive. COMMENTS ------- 1) After the rig was programmed to the band and you want to change it to other ranges you will have to open the rig again and disconnect Jumper No 3 then to apply power to the radio ,turn it on again open it again ,connect Jumper No 3 back and repeat from steps 5 . Any comment and other information would be appreciated. Good Luck Aviad 4X6TL@4Z4SV disclamer: I have not tested or verified the above, proceed at your own risk. WA2ISE .......................................................................... . Mark Bramwell, VE3PZR . . . . The University of Western Ontario Bitnet: MBRAMWEL@UWO.CA . . School of Business Administration Packet: VE3PZR @ VE3GYQ . . London, Ontario, N6A 3K7 Phone: (519) 661-3714 . .......................................................................... I was unhappy with the FT-411's "3" mode because the frequency had to be entered starting with the 100 MHz digit, and the ARS function would not work. I now use it in the "2" (normal) mode with the following mod. I used the "clone" mode to dump the FT-411's ram to a computer. It's 9600 baud, 1 start bit, 1 stop bit, CMOS logic. 544 bytes are dumped when the up arrow is pressed. Starting with byte $211 are the upper and lower transmit and receive frequencies, stored in BCD. I changed these to the limits I wanted. My FT-411's upper PLL limit is 195.4 MHz, so I used 195 MHz. The lower limit MUST remain set to 130 MHz (magic number) or the keyboard entry of frequencies will start with the 1 MHz digit .VS. the 10 MHz digit. To put the data back into ram, just press the down arrow and send the new 544 bytes to the FT-411. You could also just clone an H.T. that has the limits you want. You can not clone a mode "3" H.T. to a mode "2" H.T., however. The mode is contained in the first byte, which must match. Bill Pherigo WR0Y ****************************************************************************