[aprssig] Bluetooth RS232 adapters to run a TNC?

Scott Miller scott at opentrac.org
Wed Sep 14 14:42:05 CDT 2016

Yes, and there are various ways to pair devices (usually involving a 
pushbutton or jumpers), but you're still going to need power to both 
devices, so it's not that big a gain for many users.

My next generation trackers will have WiFi as well, so for the host 
connection I'm hoping to get more users to move to an AGWPE type TCP 


On 9/13/2016 6:53 PM, Bob Burns W9BU wrote:
> At the risk of hijacking this thread, would it be possible to 
> implement a Bluetooth connection between a TNC and a GPS receiver? In 
> other words, would it be possible to use Bluetooth to eliminate the 
> wired RS232 serial connection between the TNC and the GPS receiver? 
> Since neither device would have a user interface that understands 
> Bluetooth, how would the pairing be configured?
> Bob…
> *From:*aprssig [mailto:aprssig-bounces at tapr.org] *On Behalf Of *Byon 
> Garrabrant
> *Sent:* Tuesday, September 13, 2016 12:30 PM
> *To:* Jim (List) <jim.list at stuckinthemud.org>
> *Cc:* TAPR APRS Mailing List <aprssig at tapr.org>
> *Subject:* Re: [aprssig] Bluetooth RS232 adapters to run a TNC?
> I have the TT4BT, which connects to the DB-9 serial port of the 
> TinyTrak4 TNC and converts it to BT.  It takes power from the 5V on 
> the DB-9 pin 4, so if your TNC doesn't have that, you will need to 
> find a way to power it.  But as long as your TNC baud rate is 19200, 
> it should be fairly plug and play.  With some work, it can be changed 
> to other baud rates, too.
> http://byonics.com/tinytrak4/
> Byon
> On Sun, Sep 11, 2016 at 6:12 AM, Jim (List) 
> <jim.list at stuckinthemud.org <mailto:jim.list at stuckinthemud.org>> wrote:
>     Does anyone have experiences of using a Bluetooth<>RS232 adapter
>     to communicate with a TNC?
>     With the prevalence of Windows pad devices with no USB ports, I’m
>     sure people have done this but Google can’t find anything (apart
>     from loads of the units themselves).
>     Specific application will be a Microsoft Surface running AGWPE,
>     talking to a Kantronics TNC.
>     Jim, G1HUL
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