Added new reissued & revised SSTV articles from my past TCA columns for early 2016
to the All Things Digital section (ATD022 & ATD023 refers) & this completes the 4-part series. Since then the RTL-SDR USB
dongle SDRs & SDR# DSP software has advanced so much in only 12 months I just can't imagine what the digital radio world will
look like in 2020! Plus there is an amazing new crop of software add-ons (plugins) to go with.
January 27, 2017
a 1/4 page blurb in the Feb. QST. Check out this totally cool Raspberry Pi project called PiGate.
Rewording made to paragraph
in the BBHN article 'Webmail Access to Paclink' regarding port 80 conflicts (see All Things Digital section). Many
newer Wi-Fi cards have built-in "hosted" or stand alone network support (a close "cousin" of mesh networks) along with regular
hotspot capability (W7 to W10) & was enabling this feature on a new laptop when the confusing wording was spotted. There's an
excellent Wikiweb article on testing for & enabling hosted networks.
Note: Both hosted and mesh networks have
the ability to provide internet connectivity, if available, but they can also stand alone without it & act as intranet servers for
everyone in the surrounding wireless area; Amateur Radio mesh networks have additional capabilties (BBHN and AREDN). A Wi-Fi
"hotspot" can only provide internet connectivity when it's available else it can't function on its own. Subtle,
but very important differences to know. But, I digress...
Anyone can now join your hosted wireless network using any wireless
device (smartphone, tablet, et al) just provide your node's IP address & any required user name/password for emergency communications
(EmComm) email access. Any extra web services can be either open access (i.e. for APRS using UI-VIEW's built-in web server)
or private for EmComm use only. "Guest" account email access can be setup to allow "civilians" to send short message service
(SMS) text only messages out of disaster areas when commercial comms are cut off. Both mesh & hosted email servers
can piggyback the Winlink 2000 (WL2K) global radio email messaging system using a combination of HF/VHF radio message server
(RMS) "gateway" stations & other available systems (internet "cloud", cellular, et al).
If you enjoy reading about the history of technology from the late
1960's to the present, check out the Analog Devices Inc. newsletter Analog Dialogue. While it's written for engineers by engineers,
there is "stuff" that even we "mortals" can understand & use in our radio/electronics hobby.
January 7, 2017
Added new link for
the KE9NS website in the All Things Digital section. Darrin provides awesome support for the older Flex SDR series
enahncing the features of PowerSDR. His latest release includes a firmware upgrade to enable 60 metre band transmit for
IARU Region 1 users.
I've been receiving
& streaming AO-73 telemetry (PSK31 format) to the "warehouse" & will crack the top 100 list of active telemetry
contributors in a month or so. I don't do two-way digital comms because the antenna's preamp isn't a transmit through type,
but many are active users & the "bird" was very popular over the the holidays.
December 29, 2016
Been actively conducting
QRSS and WSPR very low power (QRPp) experiments for the past few months. I'm gearing up for the Solar Eclipse QSO Party in August
2017 for the total solar eclipse scheduled to cross the middle of the United States. Check out HamSci for more information.
a variety of outdoor antennas, but wanted to try my MFJ magnetic loop tuner indoors. It's setup for 40 metres using 8.5
metres of #8 insulated copper wire (stranded) hung on the north facing wall of my back bedroom & shaped into a vertical delta
loop. A 15-metre length of RG58 feedline runs to the livingroom and my Flex-1500 SDR and quad-core laptop. While it's not a DX
setup & mainly hears U.S. & Canadian stations, I did get several hits from a WSPR Puerto Rican station.
my new Jan-Feb TCA column QRSS CW: Part 1 (ATD027) to the All Things Digital section.