k7rkt at bigredbee.com
Fri Jun 1 14:04:08 EDT 2018
On Fri, Jun 1, 2018 at 10:44 AM, david vanhorn <kc6ete at gmail.com> wrote:
> Sparkfun now has a dedicated APRS transmitter!
> The HX1 is a low-power amateur radio transmitter set to a fixed frequency
> of 144.390 MHz. In North America, this frequency is used for the Automatic
> Packet Reporting System, or APRS <http://www.aprs.org>.
> APRS is a standard used by amateur-radio operators to broadcast live
> sensor data on a shared frequency. This data can be received by anyone with
> the proper equipment, and is aggregated on the internet through gateways
> run by members of the APRS community. APRS is commonly used to share
> real-time data including vehicle location (GPS), weather stations,
> high-altitude balloon tracking, remote sensor platforms, disaster relief
> coordination, and more. It’s effectively an open-source, open-data,
> community-run, free to use, IoT system with potentially worldwide coverage.
> The HX1 is a 5V, low-power (300mW), narrowband (3kHz) VHF FM transmitter
> module. With a simple antenna, the range will be around 6 miles. Since this
> is a “bare” transmitter, the data input must be properly modulated and
> formatted. There are several Arduino software packages that can do this,
> see the hookup guide for information.
> *Note:* Because it uses amateur radio frequencies, you will need an
> amateur radio license to use the HX1. It’s easy (and fun!) to get one.
> K1FZY (WA4TPW) SK 9/29/37-4/13/15
> aprssig mailing list
> aprssig at tapr.org
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