[aprssig] Quick APRS hardware survey (APRS Hotspot)

Fred Hillhouse fmhillhouse at comcast.net
Thu Jun 22 15:23:01 CDT 2017


I have don't have what you mention but basically it could do the same.

I have a hotspot which I use not just for data but also as a router. If there is no data available it still functions as a router.
I have a GPS that provides data over Wi-Fi. I am running a Winbook (APRSIS23) that does not have a GPS so it gets NMEA over Wi-Fi. APRSIS32 supports a TCPIP source of NMEA. I do have a radio connected to my Winbook via USB as well but that will hopefully soon be connected through Wi-Fi. GPS data will feed the TNC over Wi-Fi as well.
I haven't looked at Outernet lately but there isn't any reason I can see that the data couldn't be seen on my Winbook in some form or another. I just looked and they changed their system once again. Apparently they like their new SDR as it looks like the only option in their store.

As an aside, my dashcam (front/rear cameras) is also connected to my hotspot/router.

Best regards,
Fred N7FMH

-----Original Message-----
From: aprssig [mailto:aprssig-bounces at tapr.org] On Behalf Of Robert Bruninga
Sent: Thursday, June 22, 2017 1:41 PM
To: aprssig at tapr.org
Subject: Re: [aprssig] Quick APRS hardware survey (APRS Hotspot)

Does this already exist?

A Raspberry Pi WiFi hotspot connected to a local APRS radio.  The Pi is a server delivering WEB pages to everyone in 1000 feet showing the APRS tactical situation that the radio is monitoring.

This is for ALL people in the field with hand held devices to be able to see the tactical situation on their handheld device.  No internet anywhere is needed.

I am really impressed with what the OUTERNET people did.  The difference is that their "radio" montors the INMARSAT downlinks (anywhere on earth) and serve up the content (which includes an APRS channel).
See http://aprs.org/outnet.html

The stock WiFi antenna is only good for a few hundred feet range, but soldering on a 1.5" piece of wire as the WiFi antenna high and in the clear easily  got to 1000' radius.  Enough to cover things like Dayton Hamvention for example.

Bob, WB4APR

-----Original Message-----
From: aprssig [mailto:aprssig-bounces at tapr.org] On Behalf Of Scott Miller
Sent: Thursday, June 22, 2017 1:30 AM
To: aprssig at tapr.org
Subject: [aprssig] Quick APRS hardware survey

As some of you know, I haven't been very active in the ham world for the last three years or so.  That's mostly because a sideline project building LED hula hoops (https://www.youtube.com/watch?v=Sn-AP8DP254)
really took off. We've moved to a larger shop, hired more people, and acquired some cool new production equipment, but the
OpenTracker/Tracker3 line has been basically in maintenance mode.

The ADS-SR2 project, that started out as a dual-port successor to the
ADS-SR1 simplex repeater, is my main development focus now. It's snowballed into a multi-function thing with simplex, cross-band, and duplex voice repeater support, and I'm merging all of the major functions of the Tracker3 into it.  It has a full-fledged BASIC interpreter with a high-level command for manipulating voice traffic and APRS packet and support for Modbus RTU (and yes, I'll probably add
1-wire) for sensors and relays. I've got a partially-working Echolink client running on it.  It has Wi-Fi support and is web configurable, does IGating, has a telnet server and client, and can work in access point mode so you could use your mobile phone to access your VHF-connected mobile hotspot and do APRS text messaging, and maybe even gate mail from a standard mobile email client through Winlink eventually.

I keep growing in different directions with it, but I really need to nail down specs for a hardware version or two and the initial software release.
I'm curious what everyone's most interested in. The full-size Tracker3, the OT3m, has really slacked off in sales. The embeddable T3-Mini sells considerably more.  I think the market for a device like the T3 without network connectivity is pretty well saturated already.
There's a lot to be done in the network-connected device arena, and there could be a much smaller version, potentially with a built-in 1-watt transceiver.

What would *you* be most interested in, in terms of new embedded APRS hardware?  What do you want to accomplish that's too much hassle or expense with the existing options?

73,

Scott
N1VG
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