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VK7AX > APRS 08.09.09 04:45l 93 Lines 3392 Bytes #999 (0) @ WW
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Subj: [APRS] Digest Number 1853
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Sent: 090908/0235Z @:VK7AX.#ULV.TAS.AUS.OC #:10450 [Ulverstone] FBB7.00g $:VK7A
From: VK7AX@VK7AX.#ULV.TAS.AUS.OC
To : APRS@WW
There is 1 message in this issue.
Topics in this digest:
1a. Re: GPS Units
From: Curt, WE7U
Message
________________________________________________________________________
1a. Re: GPS Units
Posted by: "Curt, WE7U" archer(AT)eskimo.com we7u
Date: Sat Sep 5, 2009 5:47 am ((PDT))
On Fri, 4 Sep 2009, kd4e wrote:
> > Is this $95. Track2 interface the only one that leverages the special
> > features of the Nuvi 350 or do others?
> > https://www.argentdata.com/catalog/product_info.php?cPath=22&products_id=73&osCsid=ha0duoh3okjborf2i3qd9df4n6
The Tracker2 or the T2-135 will both do it. The T2-135 fits inside
the Alinco DR-135T radio (don't buy the Alinco TNC board). There's
also the T2-301.
I don't know of others that can use the Garmin Fleet Interface Mode.
You'll need to build or buy a cable that puts the GPS into the fleet
interface mode. Recent discussions on APRSSIG or maybe the Tracker2
list detailed which cables you need for what.
> > Do I gather correctly that one uses the Linux/BSD-based OpenTracker software
> > or will most any APRS app interface with it? (I only use Linux.)
You might need an APRS app that talks KISS mode to be able to run
APRS software on a laptop talking to a T2. In KISS mode you lose
the ability to get the GPS data from the TNC. Another possibility
is to use the non-KISS mode and see if the TNC supports the
Control-E method to get the GPS data, also known as PicoPacket mode
'cuz that's the first TNC or perhaps the most well-known TNC at the
time that implemented it. I know I mentioned Control-E mode to
Scott before but I don't recall now whether he implemented that.
For flashing new firmware into the TNC you can use Windows under
WINE to do it (I've done this 3 times so far successfully, using a
laptop with a real serial port). You can also send the flash image
using a comm program, the procedure was documented on the Tracker2
mailing list.
For configuring it: Similar options as above plus you can configure
it remotely once you set up the remote ID to use.
I have some Tracker2's, all early models, but haven't tried all the
possible ways to configure them yet.
> > Will this also interface with the traditional 2m Packet system or would I
> > need a TNC or sound card interface for that?
The T2's are purpose-built TNC's for APRS. Back-to-back packets
and/or large packets may not work. Stick to small packets that are
received one at a time and it will probably work for you. Of course
you can't control what the remote station might try to send you.
For a general setup that can be used with nearly any APRS or TCP/IP
or AX.25 software, check out the Kantronics KPC-3+, but it's quite a
bit more expensive. No fleet management mode but it will do
Control-E, KISS, and both large and back-to-back packets.
-- Curt, WE7U.
<http://www.eskimo.com/~archer>
APRS: Where it's at! <http://www.xastir.org>
Messages in this topic (6)
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ABOVE IS A CROSS POST TO THE PACKET RADIO NETWORK IN AN EFFORT TO
PROMOTE FURTHER INTEREST IN APRS AND PACKET RADIO
Courtesy Tony VK7AX VK7AX(AT)VK7AX.#ULV.TAS.AUS.OC
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