I suspect not, this interface does not work well with ft-2800m ...
I make the following connections:

RJ-12 connector (FT-2800M) TS connector 3.5 mm (interface for FTH-2009, FTL-2011, VX-200, etc.)
Pin 1 PTT/CLONE    <------------>    Tip
Pin 3 GND    <-------------------->    Sleeve

It worked well to read but not to write.
Reading http://www.g4hfq.co.uk/links.html and http://www.g4hfq.co.uk/download/g4tic.pdf, I think the problem may be in the interface. Bas Helman (G4TIC) says "... So far I have tried three circuits one with no success another with partial success (it communicated in one direction only) and the one documented here with complete success. ...".
Maybe I should build the interface G4TIC suggests to try again.
Thank you Dan !!

El mar, 29-05-2012 a las 12:00 -0700, chirp_users-request@intrepid.danplanet.com escribió: 
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Today's Topics:

   1. RepeaterBook (Dave Marzetti)
   2. Re: RepeaterBook (Dan Smith)
   3. New Daily Build (Build System)
   4. Can't write FT-2800M (Jos? Luis Artuch)
   5. Re: Can't write FT-2800M (Dan Smith)
   6. Fedora Linux RPMs for the latest chirp-daily build	now
      available (Mike Heitmann)


----------------------------------------------------------------------

Message: 1
Date: Mon, 28 May 2012 16:18:55 -0400
From: "Dave Marzetti" <ve3slm@hotmail.com>
Subject: [chirp_users] RepeaterBook
To: <chirp_users@intrepid.danplanet.com>
Message-ID: <86C40D4EFACF43F8878FD58BB8B72267@davenewxpdt>
Content-Type: text/plain; format=flowed; charset="Windows-1252";
	reply-type=original

When I try to use the Repeaterbook option, the list of states is limited to only US states whereas their web access also 
includes Canada.  Is this limitation in the access afforded external programs or is it something internal to CHIRP?

If it is internal, could the access be changed to include the Canadian provinces as well, please?




------------------------------

Message: 2
Date: Mon, 28 May 2012 15:27:20 -0700
From: Dan Smith <dsmith@danplanet.com>
Subject: Re: [chirp_users] RepeaterBook
To: Discussion of CHIRP <chirp_users@intrepid.danplanet.com>
Message-ID: <4FC3FBC8.4030705@danplanet.com>
Content-Type: text/plain; charset="iso-8859-1"

> If it is internal, could the access be changed to include the
> Canadian provinces as well, please?

Please file the request in an issue on the website and then someone will
look at it.

Thanks!

-- 
Dan Smith
www.danplanet.com
KK7DS

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Message: 3
Date: Tue, 29 May 2012 00:10:50 -0700 (PDT)
From: Build System <donotreply@danplanet.com>
Subject: [chirp_users] New Daily Build
To: chirp_users@intrepid.danplanet.com
Message-ID:
	<4842068.651338275450507.JavaMail.jenkins@eagle.danplanet.com>
Content-Type: text/plain; charset="utf-8"

Greetings,

A new daily build of CHIRP is available.  This includes changes made
directly to the tree yesterday, and may include additional features,
bug fixes, and/or bugs.  If you are interested in trying it, grab it
from the following location:

  http://trac.chirp.danplanet.com/chirp_daily/daily-20120529


A list of the changes included in this build (since the last daily)
follows:

Changes for Build #84
[Dan Smith <dsmith@danplanet.com>] [uv5r] Add DTCS code 645 and allow selecting extra codes in UI
Fixes #189



------------------------------

Message: 4
Date: Tue, 29 May 2012 10:06:43 -0300
From: Jos? Luis Artuch <artuch@speedy.com.ar>
Subject: [chirp_users] Can't write FT-2800M
To: chirp_users@intrepid.danplanet.com
Message-ID: <1338296803.2369.40.camel@jlaa>
Content-Type: text/plain; charset="utf-8"

Hello !!
I use Debian 6 (squeeze) and I'm trying to program a Yaesu FT-2800M. I
read it, but when I try to write it, this tells me "ERR 15".
I have done several tests (including Windows XP).
I use the same interface with which I program the handys FTH-2009 and
VX-200.
Can anyone help me ?.
Thank you very much !!
zenbaki
LU6ENY
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Message: 5
Date: Tue, 29 May 2012 06:37:16 -0700
From: Dan Smith <dsmith@danplanet.com>
Subject: Re: [chirp_users] Can't write FT-2800M
To: Discussion of CHIRP <chirp_users@intrepid.danplanet.com>
Message-ID: <4FC4D10C.2020300@danplanet.com>
Content-Type: text/plain; charset="iso-8859-1"

> I use Debian 6 (squeeze) and I'm trying to program a Yaesu FT-2800M. I
> read it, but when I try to write it, this tells me "ERR 15".
> I have done several tests (including Windows XP).
> I use the same interface with which I program the handys FTH-2009 and
> VX-200.

Hmm, the cable for the 2800 uses a modular plug in the mic jack. I
wouldn't expect those HTs to have similar jacks. Are you sure that your
cable works with the 2800?