Apropos this subject, ARRL Field Day recently went by, and around that
time Chris Gammell of The Amp Hour interviewed a slew of people during
Toorcamp <https://toorcamp.toorcon.net/>, an offshoot of Toorcon that
has a very heavy radio bent although it's primarily security-oriented.
Chris is tentative and even apologetic about the unusual interview
format (e.g. interesting, but not distracting background noises,
subjects even more tangential than usual). But I think this series is
absolutely terrific. Several of the interviews are of folks at the
cutting edge of the hobby radio field (e.g. creators of HackRF).
The latter half of one interview is especially relevant for both
beginners and folks trying to teach beginners. It starts at 19:15 here:
https://theamphour.com/397-7-impedance-matching-with-jeff-keyzer-and-michael-ossmann/
Finally, although not about radio, theAmp Hour interview of Jeri
Ellsworth
<https://theamphour.com/394-jeri-ellsworth-and-the-demise-of-castar/> is
worth the time if you're interested in female role models. (and also
Chris' interview of the two hackster.io ladies sailing Chris to the camp
<https://theamphour.com/397-1-an-interview-with-monica-houston-and-alessandra-nolting/>).
-Pete
On 07/04/2018 12:49 PM, Scott Hall via TriEmbed wrote:
Recently in TriLUG, TriEmbed and TriBRAE meetings we have talked about
various options to send data over a wireless link. They include:
* Near field communications (NFC) - limited range to a few inches
* Bluetooth LE - designed for PAN (Personal Area Networks) limited
to a few feet
* Zigbee - low power SAN (Small Area Networks) limited to tens of
feet, maybe a hundred feet
* 802.11-based Wi-Fi - limited to same as Zigbee but tied into the
Internet infrastructure
* Narrowband IoT (NB-IoT) - power hungry radios using licensed
cellular infrastructure to carry over many miles
* LoRa and Sigfox - low-power, long-range radios in unlicensed ISM
bands designed to carry over many miles
Here are a couple of articles featured in Radio Electronics Magazine's
newsletter from DigiKey:
Welcome to the Wireless Menagerie: Part 1
https://www.digikey.com/en/articles/techzone/2018/apr/welcome-wireless-menagerie-rf-bands-protocol-choices-embedded-developers-part-1
Welcome to the Wireless Menagerie: Part 2
https://www.digikey.com/en/articles/techzone/2018/may/welcome-wireless-menagerie-rf-bands-protocol-choices-embedded-developers-part-2
--
Scott G. Hall
Raleigh, NC, USA
[email protected]
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