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<p style="margin: 0px;">It sounds like a very exciting platform! Lots of things are going to be possible in this.</p>
<p style="margin: 0px;"><span><br />
</span></p>
<p style="margin: 0px;"><span>If 3G and 4G continue to come down in cost, it might even become a node-in-a-box. There are already a lot of cheap hotspots with WiFi on the market. At a remote site, a phone line with DSL versus a low cost 3G account... they're getting closer in price. <br />
</span></p>
<p style="margin: 0px;"><span> </span></p>
<p style="margin: 0px;"><span>Ray<br />
</span></p>
<p style="margin: 0px;"> </p>
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On December 15, 2010 at 11:53 PM Scott Miller <scott@opentrac.org> wrote:<br />
<br />
> It's on my bench now - just an eval board and a few thousand lines of<br />
> code so far, but a first attempt at a board layout is in the works.<br />
> Anything like a functioning beta version is at least 6 months out.<br />
><br />
> 512 KB flash, 576 KB SRAM, minimum 4 MB serial flash, USB host/device<br />
> support, SD/MMC slot... it's going to be a lot less confining system to<br />
> program for! =] Also, with a 24 MHz 8-bit MCU already nearly matching<br />
> an MX614 for decode performance, I'm really looking forward to seeing<br />
> what I can do at 76 MIPS with a 32-bit MCU that's got some DSP instructions.<br />
><br />
> WiFi isn't in the works immediately. I'm trying to design the board<br />
> with expansion modules in mind, though. Until then, you'd have to use a<br />
> WiFi bridge.<br />
><br />
> It won't be quite as miserly with power as the T2, of course. I think<br />
> the Ethernet section alone draws something like 500 mA @ 3.3v.<br />
><br />
> POE would be nice, but also might have to wait. Power distribution will<br />
> already be much more complicated than the T2, with more voltages and<br />
> higher currents, and considerations like having to be able to shut down<br />
> some peripherals when in USB bus-powered mode.<br />
><br />
> Scott<br />
> N1VG<br />
><br />
> On 12/15/2010 8:25 PM, ray@rayvaughan.com wrote:<br />
> > Any hope for an Ethernet version some day? So much more flexible. The<br />
> > radio could be anywhere in the world with a hardwire or WiFi connection.<br />
> > PoE could even power the device, and a low wattage radio.<br />
> ><br />
> > Ray, KD4BBM<br />
> ><br />
> > On December 15, 2010 at 11:16 PM Scott Miller <scott@opentrac.org> wrote:<br />
> ><br />
> > > The OT1+ has never had particularly strong RX capability. It was<br />
> > > something I managed to add on when I upgraded from the old KX8 processor.<br />
> > ><br />
> > > When I have time, I'm going to see if the OTUSB's demodulator can be<br />
> > > back-ported to the OT1+. It's going to be a bit of a stretch, though -<br />
> > > the OTUSB is clocked 3.25 times faster than the OT1+.<br />
> > ><br />
> > > I've been getting results of over 930 packets decoded on the WA8LMF test<br />
> > > track, compared to about 960 for the MX614-based OT2m and under 900 for<br />
> > > most TNC2 clones. The biggest limitation is dynamic range, since it's<br />
> > > using mostly 8-bit math. You have to make sure the audio level is<br />
> > > adjusted properly, but there's a display in the diagnostic screen for<br />
> > > that. I'm going to add a simple AGC function later on - that helped<br />
> > > with the DTMF decoding on the ADS-SR1. Incidentally, that runs on a<br />
> > > slightly slower version of the same processor, so at some point I'll<br />
> > > probably port the DTMF code over and use it for some non-APRS stuff with<br />
> > > the OTUSB hardware.<br />
> > ><br />
> > > The new MCU also has more RAM available, and part of that's going to go<br />
> > > to KISS buffering.<br />
> > ><br />
> > > I'm really looking forward to doing a few more specialized board layouts<br />
> > > based on the OTUSB. Aside from the voltage regulator there's just one<br />
> > > 44-pin IC that does everything, USB interface included. Some of the<br />
> > > software work was a major pain - getting it to load firmware over the<br />
> > > USB port when a good chunk of that firmware is the USB stack itself, for<br />
> > > example - but it does make the hardware side easier.<br />
> > ><br />
> > > Scott<br />
> > > N1VG<br />
> > ><br />
> > > On 12/15/2010 4:01 PM, Xinhua Rong wrote:<br />
> > > > Scott,<br />
> > > ><br />
> > > > Congratulations on the new product release. Personally, I like MX614<br />
> > > > more. I had poor decoding experience in OpenTracker+ with FT-7800R,<br />
> > > > FT-8800R etc mobile radios with DATA port. Not sure if you had<br />
> > chance to<br />
> > > > test OTUSB with these radios.<br />
> > > ><br />
> > > > Thanks,<br />
> > > > Adam<br />
> > > ><br />
> > > > On 2010-12-16 6:01, Scott Miller wrote:<br />
> > > >><br />
> > > >> I'm pleased to announce that the new OpenTracker USB is now shipping!<br />
> > > >><br />
> > > >> https://www.argentdata.com/catalog/product_info.php?products_id=148<br />
> > > >> http://wiki.argentdata.com/index.php/OpenTracker_USB<br />
> > > >><br />
> > > >> The new tracker is basically a Tracker2 without the digipeater and<br />
> > > >> Garmin protocol functions, but with a full-speed USB port that can be<br />
> > > >> used for configuration, command prompt access, and KISS mode,<br />
> > > >> independent of the two regular serial ports.<br />
> > > >><br />
> > > >> This means you get remote control capability, a TNC2-style command<br />
> > > >> prompt, scripting, weather station support, KISS mode, and the ability<br />
> > > >> to do all of this simultaneously without reloading the firmware.<br />
> > > >><br />
> > > >> There's also space inside for a GT-525 GPS receiver module, and<br />
> > we'll be<br />
> > > >> offering that with the appropriate jumper a little later as an option.<br />
> > > >><br />
> > > >> Demodulation is software-based, and significantly improved over the<br />
> > > >> OpenTracker+ - in our testing, it's been very close to MX614-based<br />
> > TNCs<br />
> > > >> in decode performance.<br />
> > > >><br />
> > > >> Because of the surface mount construction we won't be offering<br />
> > this one<br />
> > > >> as a kit. We'll still be offering the OpenTracker+ as a kit as long as<br />
> > > >> we're able to get the parts, but the assembled version will be phased<br />
> > > >> out in favor of the new design.<br />
> > > >><br />
> > > >> USB support has been tested with Windows 2000/XP, Mac OS X, and Linux.<br />
> > > >> We'll be adding INF files for Vista and Windows 7 shortly, but it<br />
> > shows<br />
> > > >> up as a generic USB CDC device so drivers are included with the<br />
> > > >> operating system.<br />
> > > >><br />
> > > >> Documentation is still sparse, but the wiki has the critical<br />
> > > >> information. Nearly all of the information in the Tracker2 manual<br />
> > > >> applies, with the exception of the digipeater and Garmin sections. The<br />
> > > >> OTUSB manual should be published by this weekend.<br />
> > > >><br />
> > > >> We've got units ready to ship now, and more on the way, so there's<br />
> > still<br />
> > > >> time to put it on your Christmas list!<br />
> > > >><br />
> > > >> 73,<br />
> > > >><br />
> > > >> Scott<br />
> > > >> N1VG<br />
> > > >><br />
> > > >><br />
> > > ><br />
> > ><br />
> > ><br />
> > ><br />
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