All,
I've been looking for a way to get fast enough speed over RF to be able to
use some more modern protocols, such as SMTP & POP3 for email with
attachments. I had high hopes for some guys in the NW US, but . <sigh>.
So, I started looking elsewhere and someone else here mentioned the
DataRadio -> CalAmp Gemini. That particular radio was recently
discontinued. But I found the CalAmp Viper SC+. There are several models.
It can achieve up to 256 kbps, depending on band, channel configuration,
etc.
We would probably use the radio in the 70 cm band. My assumption was that
any emission designators that they might use would most likely not be
allowed in FCC Part 97. But they use emission designators .F1D. And what
does FCC Part 97 say?
97.305(c): For the 70 cm band, it references 97.309(f)(6) and 97.309(f)(8).
97.309(f)(8): "A RTTY or data emission having designators with A, B, C, D,
E, F, G, H, J or R as the first symbol; 1, 2, 7, 9 or X as the second
symbol; and D or W as the third symbol is also authorized."
How about that!? ...F1D fits that bill. Baud rate is also within FCC
limits. So this looks like a real possibility. Price is steep: about
$1400 list. But for our purposes, it fills a gap between 1200/9600 packet
and WiFi, allowing for field deployment with a simple roll-up J-pole. And
provides locations some basic IP connectivity even if they don't have line
of sight for WiFi.
If you're interested, check it out! BTW, for you non-US guys, they have
international certifications. Check out the details via a local
distributor.
http://www.calamp.com/products/cellular-communication-devices-routers/router
s/viper-sc-0
http://www.calamp.com/system/files/resources/hardware-spec-sheets/viperscplu
sdatasheet.pdf
http://www.calamp.com/references/manuals/Viper_SC_User_Manual.pdf
Michael
N6MEF