As the focus of my blog has been more of a modern ham radio theme, it seems appropriate to share this video about ham radio in the future. This is a must-view by all as it provides us timely perspective on the future challenges.
It's from a 2012 webinar, where Chris Imlay W3KD and Ed Hare W1RFI predict and speculate what ham radio will be like in 25 years.
The first part is more a regulatory look by Chris Imlay W3KD, where as the
second part is a bit more of a technical/operational look by Ed Hare, W1RFI.
Ed Hare predicting the continued use of Amateur Radio MESH networks, and
Software Defined Radio all entangled with the internet.
~57:00 "Software defined radio super stations perhaps accessible by the internet put at
locations where you can put up antennas (future antennas restrictions).
This could allow licensed amateurs to log on to that transmitter, that's generating
a broad signal across the entire band, filling each little channel within that
band with an different actual amateur signal. So that that all those hams
have an easy way to operating from a good location, even if they are operating
from an apartment....
Amateur radio will have developed a nationwide amateur radio digital back bone,
using a broad range of frequencies and technologies. I think its going to
grow ad-hoc. Planning is all good, but if you look at the same way the
radio relay network was developed in the spark days, we are going to see that
same type of approach. That same type of pioneering spirit. Ham equipment
will be fully integrated with the internet....
Analog repeaters will be real legacy technology, replaced by digital repeaters
that will allow multiple users on the same spectrum channel. Right now the
repeater paradigm is such that we are limited by the maximum number of possible
users. Where we have a lot of repeater that are used, but might spend 50%,
90% or more of their time not being used. And in the meantime, nobody else
can use that pair. If we can imagine ways of multiplexing all of these
repeaters together so that anytime someone wanted to get on the two meter band
on a quote "repeater", a virtual repeater could be created out the
multiple repeaters that are there. Kind of a trunking system on steroids."
At the September 2013 DCC, Heikki Hannikainen, OH7LZB, presented on Friday
morning a talk about authenticating
amateur radio services on the Internet.
Some of the interesting sites allow you transmit RF, directly or indirectly.
Such as IRLP, EchoLink, Allstar APRS-IS, remotehamradio.com etc. And there is more potential
for that. I.e. text messages for DMR, APRS, SDR, and remotely operated
Presently each such service has a different manual authentication method.
The ARRL Log of the World Certificate conforms to the X.509 standard used all
over the internet. It may be installed on web browser, and used to
log into web services. Any third party can technically validate that the
web user connecting really has an ARRL LoTW certificate. Any one implementing
this method on their website to restrict access to hams, does not get access to
the users private key. This is the same crypto used by banks and the
military. The ARRL doesn't need to do any addition work to make this
happen. Websites implementing this do not need to query the ARRL anything
about the user. No single point of failure.
There are plenty of developers who would be happy to create new web services
for hams. They just don't have the time or motivation to go though all the
license papers to manually authenticate them.
- Providing authenticated amateur radio services on the Internet - OH7LZB
Video presentation from the DCC
Notes on setting up a OpenVPN server that uses LoTW keys
- Apache configuration and PHP scripts
From the client/user end it looks like this:
Add the LoTW CALLSIGN.P12 file to your browser like so. Options -> Advanced -> Certificates in FireFox
In the future websites seeking authentication will show this.
If you've ever logged into a third-party web site with your
Google, Facebook, or Twitter account by granting the app permission to that
respective account, then whether you knew it or not, you've used OAuth (an
open standard to authorization.), and it's a great way to dole out
Ham Radio needs something simple like this. It would be
great if it could be implemented at the regulatory level (FCC), where your FCC
ULS login could be used to log in to other ham radio websites, that seek to
authenticate you as a ham. Fat chance of that, so the next best would
probably be the ARRL login.
I also recommend watching Vint Cerf's Re-thinking the Internet, if you
Peter, K4PNG did a forward-looking article
of his own in his local newsletter (see page 8).
When you are ready to start messing with software defined radio, look into HackRF (capable of transmission or reception of radio signals from 10 MHz to 6 GHz):