Modifications for the YAESU โดย....www.PhuketHam.cjb.net

Modifications for the Yaesu

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FT-415	FT-416	FT-2200	FT-212	FT-10
FT-2400	FT-2500	FT-50	VX-1R	VX-5R
VX-150	FT-411

All picture for Yaesu Manuals and other stuf for Yaesu

Modifications for the Yaesu FT-411

MODS for FT-411/811 TRX for a VHF UHF

To allow this TRX for a VHF UHF general cover, do the following mods : น่าสนใจ......

1) Remove the front panel.
2) Look for the first part where the Lithium battery is connect.

there are 8 connectors like :

To validate the micro controller, do next :

For the FT-411 : RX 120 - 174 Mhz TX 140 - 174 Mhz

1) Reset the TRX by switch on it with [MR] and [VFO] key down.
2) Type 1200 [VFO] 1740 [VFO] 1400 [VFO] 1740 [VFO]
3) 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 :

1) Idem
2) Type 4200 [VFO] 4700 [VFO] 4200 [VFO] 4700 [VFO]
3) Idem

This modification has been read 2416 times.

FT-411 Modification via computer

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.

This modification has been read 2305 times.

FT-411 to packet

For those that wish to connect a ft 411 to packet via a mfj tnc the following modifications are needed. In the black lead from the tx audio out insert a .01-0.1uf cap. In the red lead from the ptt, insert a 2.2k rst.

Then combine these into a common single lead connected to the tip of the small mike plug. The yellow rx audio goes to the tip of the large speaker plug. And the shield goes to the ring of the large plug. This information can be found in the 1989 august issue of 73. Page 58 it workes for me.

73'S [email protected]

This modification has been read 1921 times.

Extended frequency coverage mod for the FT-411

Yaesu has sent out the following as an extended frequency coverage mod for the FT-411. I tried it and it works as advertised. First remove all black screws from case. Remove 4 silver screws holding the battery connector on bottom.
Remove the 3 knobs. Carefully separate the front and back. There is a multiconductor trace between the front and back so hinge the front from the back to keep from putting too much tension on the traces. Looking at the board side of the front cover there are 8 little solder pads. They are half hidden by a cover plate and the multiconductor trace. Pad 2 will have a solder connection, the rest are open. Remove the solder fro the battery connector on bottom.

Remove the 3 knobs. Carefully separate the front and back. There is a multiconductor trace between the front and back so hinge the front from the back to keep from putting too much tension on the traces. Looking at the board side of the front cover there are 8 little solder pads. They are half hidden by a cover plate and the multiconductor trace. Pad 2 will have a solder connection, the rest are open. Remove the solder from pad 2 and place a solder bridge on pad 3. All other pads will be open. Close up radio.

Now when you turn on radio it will come up with 1.000 in the display. Memory channel should say 1. Program in the lower receive frequency.
Example 1 - 4 - 1 - 0 then push VFO key. The Memory channel should go to 2.
Now program in the upper receive frequency. i.e. 1 - 6 - 5 - 0 and push VFO key. Memory will move to 3. Do same for lower and upper transmit frequencies.
Note. The receiver sensitivity falls off at 162.55 to about 1 uv. The step and repeater offset will need to be re-programmed also. Follow instruction manual.

This modification has been read 2439 times.

FT-411 out of band modification (Software)

I discovered a nice trick to increase its frequency coverage.
It is so simple that you don't even have to open your hand held. All you have to do is:

Make sure that the power switch is off.
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)
Keep pressing both buttons and turn the power on.

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.

Tnx, AVIAD, 4X6TL@4Z4SV

This modification has been read 2140 times.

PTT mod for FT-411

Hello, a few days ago i was using my friend's Yaseu FT-411 and found out this neat trick!!! First, a little background... As i'm sure some of you know, Yaseu came out with the popular 411 a few years ago. Just recently, they came out with an "enhanced" model, the 411-E. The only found difference is the frequency lock of the radio. THe 411E has a feature that lets you lock the ptt as well as the frequency.

To activate ptt lock on the 411:

Turn radio off

Push the 6 button, hold it and turn on the rig while your still holding it.

Now, press FM 6, you should see "L".

Press FM 6 again, you should see "PTT"(Both L and PTT will appear in the bottem left corner of the lcd display).

Congradulations you have installed ptt lock in ur rig. To turn it off, just repeat those steps.

Mike-N2LPD @ N2IMC.NJ.USA.NA

This modification has been read 2042 times.

Yaesu VHF mod for commercial splits

Author: Tom, VO1TV - [email protected]

When doing emergency work, It's common for hams to use commercial repeaters, or, more often, to have the ABILITY to use them. In our club's work with the local Red Cross, we have to ensure we can operate on the Societies's commercial repeater in the VHF band. The frequencies are just above and below the 2 meter Ham bands. After deployment, we will use commercial gear to handle comms within the Society, but the first critical 2 hour period requires fast action, so we need to anticipate the need to communicate come what may on ANY frequency. That's what makes Hams so valuable in a crisis.
The large split makes for a minor difficulty in attempting to program Yaesu gear. Difficulty until you try this:
This mod worked on the Yaesu 2400, the 411 and the 470. I suspect it is generic for most Yaesu VHF gear. I am indebted to Len, VO1YS for this, who tried it on yet another Yaesu rig.

Start by setting your rig to low power and by hooking up a dummy load. This mod may take several attempts, and you don't want to be slapping a 50 watt signal at a 600K offset to your served agency's allotted frequency! THAT might bring down wrath from any number of sources !!

All Yaesu gear I have used has 2 buttons or functions that we will use for this mod: a function button, usually labelled "f" and a button that allows you to tune within a given memory. This button puts an underscore beneath the memory number. I will call it "mr", as that is its label on my 470 and 411.

Program into memory the receive frequency. That is to say, the commercial repeater output frequency. Put in any tone encoding required as well. Store this memory.

Set the repeater offset to display a - or + depending on which direction your transmit frequency is. Preserve that as part of the frequency memory too. Try not to transmit. You have just saved a commercial frequency with a 600K split at this point.

Press the "mr" button to display an underscore at the memory channel location.

Enter the transmit frequency at this point. All you are doing is adjusting the memory tuning, and we are about to lock it in.

Press the (f)button for 1/2 second or until the memory channel number is flashing. Now, while the memory channel number is flashing, momentarily press and hold the PTT button ( press to talk ),then simultaneously press the (f) button again to lock your new split. This may take several tries to get the timing right.

You may have to press the "mr" button again to remove the underscore from beneath the memory channel number.

Look for both the - and + repeater split indicators to be displayed. That is your sign that your mod has been successful.

carefully test your new split.

Yaesu FT-415

YAESU FT-415 expanded frequency range

Remove the screws holding battery track and rear cover. Locate the "CONTROL UNIT".
Close jumpers 3, 5, AND 7 if not allready closed, 6 must be open. Let other jumpers unchanged.

Reassemble the radio.

Turn on the radio and program it as following:
"1" 135.000 PRESS VFO THIS IS LOWER RX LIMIT
"2" 185.000 PRESS VFO THIS IS UPPER RX LIMIT
"3" 135.000 PRESS VFO THIS IS LOWER TX LIMIT
"4" 185.000 PRESS VFO THIS IS UPPER TX LIMIT
Press and hold MR, VFO and 2 while TURNING ON if you need to reset or reprogram the radio.

This modification has been read 1186 times.

YAESU FT-415 User's guide QUICK REFERENCE by PY3PSI on 02/dec/1998.

Only for some NOT custom functions!

Symbols: "+": simultaneously; "-->": after.

Current consumption: 6.5 mA Auto Power off 8.0 mA Stby (Saver on) 170 mA RX max. Squelched: 1/3 of this value 1.5 A TX max (5 W); 600 mA TX min (0.5 W). To charge a battery through the jack, the supply voltage must be at least 2 volts higher than the nominal battery voltage: 18 Hours for FNB-27. Battery below 6.5 volts: icon on LCD. Worst: it blink. Beeper on/off: FM --> 2 --> FM --> 2 LOCK dial knob: FM --> 0 --> 5 1 MHz steps: FM --> ^ or dial RPT offset: FM --> 0 --> 6 Memory storage: QRG (VFO) --> hold FM (after dial set mem number) --> FM Memory separate TX QRG: QRG (VFO) --> hold PTT + FM Memory tuning: MR acts like VFO (to store other QRG too). Memory mask: hold FM --> MR; Unmask: --> hold FM, select with dial --> MR (NOT FM!) Scan subband: memory QRGs Low and Up --> MR --> ^ Scan pause mode: FM --> 7 --> FM (7) Ringer: (test) FM --> 0 --> 0; --> 2 (off); --> 8 open squelch X bell (1 beep) DTMF: FM --> PAGE memory (dial) 0 & 7 read only. 1 ur personal ID DTMF: to RX ID, FM --> PAGE --> FM (then select mem) --> FM (on/off) DTMF: display: FM --> 0 --> 4 PAGING: my 3 ID, "*", 3 ur ID. FM --> 0 --> 8: RING instead Squelch open DTMF delay: FM --> 0 --> 1 (450/750 ms) Tel DTMF store: FM --> CALL, hold FM (select memory number via KEY) --> hold FM, key. To DEL : PTT; To terminate: CALL To replay: press mem number. CALL returns to QRG To TX: press the number of the DTMF memory DTMF: FM --> 0 --> FM --> 1: to hold TX 2 seconds every number: --> 3: own tone sequence (= mem 0) for A.P.Off --> 5: DTMF instead single-tones for keys --> 6: fast DTMF playback (10/7.5 digits/sec --> 4: disable DTMF keypad (9: rows, 8: columns) Resetting the CPU: hold MR + VFO + turn TRX on Auto Power Off: FM --> 0 --> 3. Switch TRX off and back on for use SAVER: RX off 3 secs after squelch close (30 ms on); 5 = 1000 ms sleep BUSY LED: FM --> 0 --> 7 (on/off)

Yaesu FT-416

Expanded RF Range: 123---174 MHz RX, 135---174 MHz TX

Range: 123---174 MHz RX, 135---174 MHz TX

Remove battery and antenna.
Remove the four screws holding the battery track in place.
Remove the two black screws holding the rear case in place.
Carefully open the front cover from the radio.
Locate and solder jumper pads 5 & 7 pads 3 and 9 are already jumpered. (jumper pads 1 & 10 for 1750 hz tone burst operation)
Carefully replace the front cover and replace the two black screws.
Replace the battery track and the four screws.
Reset the microprocessor. press and hold [mr], [2] and [vfo] and turn the radio on.
The radio display will cycle orderly thru the memory channels. enter the following band limits:

Ch.1 enter 120.00 and then press [vfo] rx low limit.
Ch.2 enter 174.00 and then press [vfo] rx high limit.
Ch.3 enter 135.00 and then press [vfo] tx low limit.
Ch.4 enter 174.00 and then press [vfo] tx high limit

Yaesu FT-11

Extended transmission range on a Yeasu FT-11R

I have knowlege that this mod works, but take no responsibility for any damage it does to your radio, the legality of this mod, or any other incurred damages.

After the mod a FT-11R will have:

Recieve: 110.000-135.995 (AM) 136.000-180.000 (FM)
Transmit: 136.000-180.000 (FM)
Empty Memories and a completely reset radio

First, Remove the antenna, battery pack, and pocket clip (if installed) from the radio. Then remove the four black screws from the corners of the main section of the radio, the two black screws from the bottom center section of the main body, and the two silver screws from the bottom of the keyboard section. Now carefully separate the back and front halves of the radio, taking care not to put too much strain on the internal ribbon cable, or loose the small metal strap holder or the battery release button.
Once you have opened the radio, carefully remove the metal plate covering the back of the keyboard. Then remove the "AF" pcboard by first removing the two copper screws in the middle of the board, then holding the bottom of the pcboard and the mic/speaker jacks between your thumb and forefinger and pulling straight up. This may take a little force, as you are seperating two connectors. Once you have the "AF" board removed, set it and the connector/keyboard backplane board aside. Now look at the lower left corner of the controller board. You should see the 8 jumpers (they are very small), set up like this:

     Top of radio
 
L   A  o-o    o o E     I don't know how the jumpers relate to the 
E   B  o-o    o o F     ones on the schematic, so the letters are just 
F   C  o o    o/o G     for reference in this article
T   D  o-o    o o H
                       "-" means a solder jumper, and "/" means resistor

These are the functions of the jumpers that I know of:

A- Turns your radio into the euro version (TX between 144.000-146.000)
B- ?
C- ?
D- This is the important one. Gives you extened TX range
E- Turns your radio into the 440Mhz version. Not Suggested!
F- ?
G- ?
H- Same as jumper "E"

The only jumper that this mod deals with is "D". It currently has a solder jumper across it. Remove the solder across the jumper with really small solder wick or a desoldering station, taking care not to touch any plastic with your soldering iron. Once this solder jumper is removed, you now have extened tx range. Now carefully replace the "AF" board first, and then the connector/keyboard backplane board. Take care to get the copper grounding connector on the side of the mic/speaker jacks well seated. Replace the two copper screws in the middle of the "AF" board, and the two silver screws on the bottom of the keyboard. Replace the battery eject button and strap holder, and then replace the back half of the radio. Replace all the screws, put the battery and antenna back on, and turn the radio on. You should see 144.000 on the screen. Turn the radio off and the hold the MHZ/ and MHZ/ buttons while turning the radio on. You now have the transmit range between 136.000-180.000.

As a suggestion, you can store completely different transmit and recieve frequencies in a memory (see manual), so if you store a service frequency in a memory, you can program a legal HAM frequency as the transmit freq. so you never accidently transmit on an illegal frequency.

Another neat feature that I have found on these radios is the "Clone" feature. You can transfer all memories from one FT-11R to another FT-11R. First, make a cable using two male stereo 1/8" connectors, and connecting the top(gound) and middle conductors of the plugs straight through. Don't connect the tip conductors together though. Plug this cable into the earphone jacks of the two radios, and on each radio, hold down the "FM" button while turining it on. You should see every character flashing on the screen. Now, on the radio which you wish to recieve the memory contents from the other radio, press the MHZ/ button. You should see "RX CLN" on the screen. Then on the radio which is to send it's memory contents, press the MHZ/ button. "TX CLN" should appear on the screen for about 5 seconds, then it should return to the flashing screen state. The recieving radio should now be in normal operating mode. Turn both radios off, and remove the cable. That's it. This function overwrites all of the recieving radio's mem contents, and copies everything from memories to pager codes to the status of the light. WARNING: The instant that you hit the MHZ/, your memories are GONE, even if the transfer is unsuccessful! Also, both radios must have the same jumper settings to successfully complete the cloning process.

That's all I know for now! Have fun!

Any other questions? Contact me at "[email protected]"
Ian Jordan

Picture(s) of Yaesu - FT-2200

FT-2200 expanded frequency range

I have mobile transceiver FT2200 version B3.
Hi have 12 programming jumper across on the control unit (under LCD display). My transceiver have :

Automatic repeater shift version B
Tone Burst 1750Hz
RX 110MHz-180MHz FM/AM (110MHz-140MHz automatik AM)
TX 140MHz-174MHz FM

Jumper across.

Nr. Nr.0 Nr.1 Nr.2 Nr.3 Nr.4 Nr.5 Nr.6 Nr.7 Nr.8 Nr.9 Nr.10 Nr.11

JUMP> NO YES NO NO NO NO NO NO NO YES NO NO

NO > JUMPER NOT is
YES > JUMPER it is
JUMPER Nr.5 >> AM RX block out (info HB9PD)

This modification has been read 1412 times.
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21-04-2000 add a comment

Yaesu FT-2200 2m mods

Author: Tim Skloss - KC5DNA

I bought my ft-2200 a few months ago and I didn't have the AM recieve activated. So I complained and got the mod for it:
AM receive:

Remove top and bottom covers, then remove speaker.

Lift the faceplate retaining tabs on top and bottom to slide the face off (pull the knobs off first you knob).

Remove the retaining nut on the tuning shaft and lift the clear plastic light guide off.

The 12 surface-mount sized jumpers are now visible.

If AM is disabled, there should be a jumper across number 5. Remove this and reset radio before use. (I think it is number 5, my radio had only one jumper in place, and it was the one for AM block-out. If you have more than one in place, contact me and I will give you the double-checked version of this mod.)

Now, if you enjoy this mod, please send me any more that you have heard of for this model. I would like a wide open radio to experiment with it's power output across the spectrum. I need FM Rx and Tx extended.
Is it common for a radio to require a jump *made* instead of just *cut*? This would have to be the case for this model since it doesn't have any jumpers soldered into place. (12 pairs of surface-mount sized/spaced pads numbered from left to right).
thanks in advance!
Tim Skloss - KC5DNA

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13-09-2001 add a comment

Expand the TX and RX of a later model Yaesu FT-2200

Author: KJ7K - [email protected]

My FT-2200 is a late model---(ser. # 4M220900) The early models were done differently. You can find the other mod elsewhere.
The process for the later models is super easy. It'd sure be nice if ALL manufacturers had the foresight to do it like Yeasu. Yea! Sue!
OK! Here we go!

Disconnect the power and antenna cables.

Remove the bottom cover (the speaker side) and CATCH the speaker before it drops out. It isn't screwed down; it just rests on a rubber mount.

Carefully lay the speaker aside.

Find the GREEN wire that's located under the speaker. It has a nice loop in it...just perfect for "snipping."

Clip it! One little ol' snip is all it takes.

You're almost done. Reattach the lid.

Reconnect the power and antenna cables and fire that sucker up!

Now you've gotta' RESET your radio. It's easy!

Press the MHZ and the CALL button, hold them down and then press the POWER button.

The power will come on and your MOD will be done!
Here's a neat feature: Resetting doesn't erase your previously programmed memories! Nice! I think I really LIKE the designers at good ol' Yeasu!
The TX used to be 144.000 to 148.000. The RX used to be 144.000 to 174.000.
But NOW...it's 140.000 to 175.000 MHz on TX and 110.000 to 180.000 MHz on RX. And now you've got an AM band, too. A star shows up on the display when you're in AM territory.
This is a nice, easy mod...and the price is right! Even a simpleton like N0QAN could do it!
Remember: Just don't transmit where you aren't licensed or you'll screw it up for all the responsible people! I'm sure you knew this; you're ALREADY one of them there "responsible types," right?
Right!
73!
KJ7K

Picture(s) of Yaesu - FT-2400

FT-2400 expanded TRX frequency range

Remove the 2 allen screws holding the front panel. On the "CONTROL UNIT", locate the Jumpers Points. JP2 must be OPEN, JP1 AND JP3 must be CLOSED with solder. When JP6 is CLOSED, you can use the 1750hz tone acces for european repeaters.

The expanded range is 118 to 174 mhz on the display, but work only for 140 to 174 mhz.

Date: 17-05-2002 User comment From: carlos

Subject: ft-2400

could someone post a picture and label the jumpers..

thanks.

This modification has been read 2026 times.
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10-02-2001 add a comment

Yaesu VHF mod for commercial splits

Author: Tom, VO1TV - [email protected]

When doing emergency work, It's common for hams to use commercial repeaters, or, more often, to have the ABILITY to use them. In our club's work with the local Red Cross, we have to ensure we can operate on the Societies's commercial repeater in the VHF band. The frequencies are just above and below the 2 meter Ham bands. After deployment, we will use commercial gear to handle comms within the Society, but the first critical 2 hour period requires fast action, so we need to anticipate the need to communicate come what may on ANY frequency. That's what makes Hams so valuable in a crisis.
The large split makes for a minor difficulty in attempting to program Yaesu gear. Difficulty until you try this:
This mod worked on the Yaesu 2400, the 411 and the 470. I suspect it is generic for most Yaesu VHF gear. I am indebted to Len, VO1YS for this, who tried it on yet another Yaesu rig.

Start by setting your rig to low power and by hooking up a dummy load. This mod may take several attempts, and you don't want to be slapping a 50 watt signal at a 600K offset to your served agency's allotted frequency! THAT might bring down wrath from any number of sources !!

All Yaesu gear I have used has 2 buttons or functions that we will use for this mod: a function button, usually labelled "f" and a button that allows you to tune within a given memory. This button puts an underscore beneath the memory number. I will call it "mr", as that is its label on my 470 and 411.

Program into memory the receive frequency. That is to say, the commercial repeater output frequency. Put in any tone encoding required as well. Store this memory.

Set the repeater offset to display a - or + depending on which direction your transmit frequency is. Preserve that as part of the frequency memory too. Try not to transmit. You have just saved a commercial frequency with a 600K split at this point.

Press the "mr" button to display an underscore at the memory channel location.

Enter the transmit frequency at this point. All you are doing is adjusting the memory tuning, and we are about to lock it in.

Press the (f)button for 1/2 second or until the memory channel number is flashing. Now, while the memory channel number is flashing, momentarily press and hold the PTT button ( press to talk ),then simultaneously press the (f) button again to lock your new split. This may take several tries to get the timing right.

You may have to press the "mr" button again to remove the underscore from beneath the memory channel number.

Look for both the - and + repeater split indicators to be displayed. That is your sign that your mod has been successful.

carefully test your new split.

De VO1TV

Picture(s) of Yaesu - FT-2500

FT-2500 freq. expansion

Hi, and thanks for reading this!
The Yaesu FT2500 is the easiest radio to mod to receive AND transmit out of band! All you need to do, is to remove the top cover (5 screws) and cut a loop of green wire! Instant tx/rx from 140 MHz to 179 MHz.
Is this TOO easy? I think it is. This information was obtained via 2 different ham radio shops AND Yaesu (U.K.) Ltd. All three gave me OFFICIAL Yaesu faxs'.
Right now, there are idiots who WILL transmit on the police bands. All it will take is a FT2500, a phillips screwdriver and a pair of wire cutters! Who knows, it may be you who needs police help.
Have the manufacturers made it TOO easy to transmit out of band? I would like to hear what you think.

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View all modification in one click. This can be a very big file.!! (3 Kbytes)

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