[Fwd: RE: [Fwd: Re: [Packet] Kenwood TM-D700]]

[Dr. Gerald N. Johnson]

-------- Forwarded Message --------
> From: Dave N0LVA <n0lva at mchsi.com>
> To: g369n849j at weather.net
> Subject: RE: [Fwd: Re: [Packet] Kenwood TM-D700]
> Date: Wed, 6 Aug 2008 22:07:33 -0500
> Jerry send him this info for me please.  First of all you MUST use a
> straight through cable to link the radio and the computer.  That alone is
> likely the problem at this point.  No terribly different parameters are
> needed.  I do not use it all of the time but when I do it is mobile and so
> far has done ALL that I have asked it to do.  I am using it with Winpack.
> The only thing I have had trouble with is getting Winpack to do automatic
> download and upload with the d-700.
> I'll take a look at my laptop and see what I have in there.
> 73. Dave
> n0lva
> 
> -----Original Message-----
> From: Dr. Gerald N. Johnson [mailto:g369n849j at weather.net]
> Sent: Wednesday, August 06, 2008 9:46 PM
> To: n0lva at mchsi.com
> Subject: [Fwd: Re: [Packet] Kenwood TM-D700]
> 
> -------- Forwarded Message --------
> > From: Dr. Gerald N. Johnson <geraldj at storm.weather.net>
> > Reply-To: geraldj at storm.weather.net
> > To: packet at mailman.qth.net
> > Subject: Re: [Packet] Kenwood TM-D700
> > Date: Wed, 06 Aug 2008 20:39:57 -0600
> > On Wed, 2008-08-06 at 15:14 -0400, David Jordan wrote:
> > >
> > > I'm new to packet.  Have a new TM-D700.  Followed the manual directions
> but
> > > can't seem to get the unit to listen to the connected PC.
> >
> > I haven't used the pseudo TNC in the TM-D700 but I know N0LVA
> > (n0lva at mchsi.com) is using it. Its marginal for packet because it can
> > only accept one frame at a time and rejects transmissions having more
> > than one frame (at least fails to copy any frame past the first one and
> > so makes for slow packet network transmissions if the node or bbs sends
> > more than 1 frame at a time. I've found by experiment over decades that
> > collisions damage frames past the first one often enough that throughput
> > to a full blown TNC is greater if the node, TNC, and bbs have maxframe
> > set to 1. It is hard to convince all users and if there is only one user
> > on at a time, data may flow faster with a greater number of frames per
> > transmission except with the TM-D700 is involved.
> > >
> > >
> > >
> > > Is there anyone on the list that has a 700 that is up and running with
> > > packet?  I'd like to ask some questions about software applications like
> > > HYPERLINK or BUXCOM, etc.
> > >
> > I'm sure you have to match the data speed, number of bits, and
> > handshaking (hardware or software) between the computer an the TNC. The
> > TNC is much like a modem and has the same serial interface as a modem.
> >
> > I have used HYPERLINK with a MFJ TNC so I know it can work. It likes to
> > think it has to dial but that's not hard to overcome. I'm using a DOS
> > program called YAM for my packet, its automated with a set of scripts so
> > I don't have to sit and watch 1200 baud data crawl by.
> >
> > Since some packet messages include text graphics using extended
> > characters you will want to use 8 data bits, and for a start no parity,
> > 1 stop bit. You can add parity once you have communications between the
> > computer and the TNC working. I like even parity.
> > >
> > >
> > > 73,
> > >
> > > Dave
> > >
> > > Wa3gin
> > >
> > 73, Jerry, K0CQ