[Yaesu] FT-2400H CPU Jumper Help!!

[KBØNLY]

Ok let me say this again...

I DO NOT WANT EXTENDED TRANSMIT AND RECEIVE...

I am trying to revert this radio back to factory specs.  Opening JP2 and closing JP1 and JP3 is the Mars/Cap mod that extends the transmit and receive.  With the radio in that configuration it will transmit out of band, don't want that, and also the Automatic Repeater Split DOES NOT WORK..

Ok, did i make that clear enough?

Sorry but i got 27 emails today from people telling me how to open the transmit on this radio, I don't want the extended transmit, i want the radio back to its factory settings.

73,

Scott


  ----- Original Message ----- 
  From: YU1AA - A.Antic 
  To: KB0NLY 
  Sent: Saturday, October 10, 2009 1:09 PM
  Subject: Re: [Yaesu] FT-2400H CPU Jumper Help!!




  19-07-1998 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.

  This modification is read 1315 times. top of page

  10-02-2001

  (FT-2400) Yaesu VHF mod for commercial splits

  Author: Tom, VO1TV 

  - - - 

  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.

  l 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 !!

  l 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.

  l 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.

  l 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.

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

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

  it in.

  l 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.

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

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

  successful.

  l carefully test your new split.

  De VO1TV

  This modification is read 1092 times. top of

  - - - 


  ----- Original Message ----- 
  From: "KB0NLY" <kb0nly at mchsi.com>
  To: "Yaesu Reflector" <yaesu at mailman.qth.net>
  Sent: Saturday, October 10, 2009 7:07 AM
  Subject: [Yaesu] FT-2400H CPU Jumper Help!!


  >I bought a used FT-2400H to use for APRS and as a spare radio, i know from the manual and from having owned one of these years past that the jumpers are out of whack, first of all its modified for out of band transmit, i want to kill that, and two its Automatic Repeater Split won't turn on and the split is defaulted to 0.000 so i know its because of the jumpers.
  > 
  > Problem is i can't find ANYWHERE online showing what the damn stock config of those six jumpers should be for the US version.
  > 
  > RX should be 140-174
  > TX should be 144-148
  > 
  > I can't get it to do those with also having the ARS able to turn on.  I soldered and desoldered the jumpers in at least 100 configurations, i can't get it to do it, i even had it displaying UHF frequencies at one time... 
  > 
  > Anyone know??
  > 
  > 73,
  > 
  > Scott
  > 
  > 
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