Yaesu PEP950 update Main CPU Ver. 0112 and EDSP Ver. 11.53 the flash programming

10/30/09

PEP950

This procedure is used to update Main CPU Ver. 0112 and EDSP Ver. 11.53 the
flash programming for the FT-950 Transceivers.

*If you already have software Ver. 11.53 it is not necessary to update the FT-950 EDSP again.

We recommend installing the Flash Programming Software on a PC computer with Windows 2000,
XP or Vista Operating System; and use the serial cable RS-232C, DB9F to DB9F straight cable.

NOTE: There are many USB adapters available; however some may not function with this software.
We recommend using the latest USB adapter driver software when available.

Install the data file to PC

1. Down load the FT-950 data file [FT-950_PEP950_11-30-09.zip] from the following website:

http://www.yaesu.com/indexVS.cfm?cmd=DisplayProducts&ProdCatID=102&encProdID=292E
02F4E4D00EC99887A63E7B8ECD1B&DivisionID=65&isArchived=0

2. Save the FT-950 data file [FT-950_PEP950_11-30-09.zip] to the desktop on your computer.

3. Unzip and Extract the contents of [FT-950_PEP950_11-30-09.zip] to the desktop of your

computer.

4. You will find the PEP950_EDSP3 and PEP950_MAIN folders on your desktop.

The programmer and software are now stored on your computer on the desktop. The files designated
in the last step above are ready to update your FT-950 Transceiver.

* The PEP_950 MAIN folder includes the new software writer FWS005 V2.01. We recommend not us i ng
the earlier version software and writer. .

* The PEP_950 EDSP folder includes a new software writer V3.01; it no longer requires the four DLL files
that were needed by V1.03. We recommend you use the V3.01 writer and remove V1.03 and the four DLL
files from you PC.

The software updates will work with all versions (AF, AS, EU, NA, OC, SA or all Countries) of the FT-950.

Ver. 0112 MAIN CPU implements improvements (also includes all previous updates):

• The FH-2 [

• Correct the CW Auto Mode.

• DMU Band scope Display Signal Peak Frequency is centered.

Ver. 11.53 EDSP implements improvements (also includes all previous updates):

• The DNR algorithm is not reset between TX/RX, to eliminate the increased receive noise after a

transmission.

• Increase the response of the compression level meter in conjunction with the PROC knob. (Max

up to 12dB).

NOTES:

*Rotate the [METER] switch to select “COM” (Compression). We recommend setting the PROC level within the 5dB
to 10dB range.
*When menu settings are saved on the DMU-2000 CF card and transferred to the new version, some previous versions
may not transfer correctly. Please check your menu, update the settings, and then save the new settings to the CF card.

<-][->] keys are made to increment the frequency at 100kHz up or down.

MAIN CPU

*Don't forget to write down (or save to a CF Card) any personal menu settings you have changed from the
default before you start. Please see the DMU-2000 Data Management Operation Manual for the procedure
to save your settings to a CF card.

1. Turn the FT-950 OFF and disconnect the DC power cable (or turn OFF the power supply for FT-

950 and wait a minute, until the capacitors discharge).

2. Locate the program switch thru the access hole on the back at the rear right corner of the radio.

Carefully move the PGM-SW to the RIGHT (program position).

Carefully move the PGM-SW to
the RIGHT (program position).

3. Connect the serial straight through programming cable, DB9F to DB9F, connector to the serial

port COM1 in the back of your computer. Plug the DB9F connector to the CAT connector on the
FT-950. If you use a USB to serial adapter, you might need to change the COM Port number.

4. Leave the FT-950 turned OFF and connect the DC power cable (or turn ON the power supply for

FT-950).

5. Now go to the desktop open PEP950_MAIN folder and find the FSW005 icon as shown below.

Double-click the FSW005 icon, displayed on the Program Screen.