[amsat-bb] Outernet L-Band Service

Dave Hartzell hartzell at gmail.com
Sun Oct 16 14:52:02 UTC 2016


Interesting stuff.  I should get a station up today...

So, a question to the group:  what is the main area of interest?

APRS?  Weather info?  General Interest?  tinkering?



On Sun, Oct 16, 2016 at 6:48 AM, Alan <wa4sca at gmail.com> wrote:

> Scott,
>
> I moved the patch inside to a much less optimum location.  It looks
> through my thermopane glass past a
> post, and some leafy trees.  SNR dropped to 2-3, and I am now seeing some
> packet loss.  However, data
> is still flowing as before.  One thing to try is rotating the patch
> antenna 90 degrees.  I see a
> solid, reproducible 0.7 dB difference, which matters with suboptimal
> locations.
>
> 73s,
>
> Alan
> WA4SCA
>
>
>
> <-----Original Message-----
> <From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of Scott
> <Sent: Saturday, October 15, 2016 10:12 PM
> <To: amsat-bb at amsat.org
> <Subject: Re: [amsat-bb] Outernet L-Band Service
> <
> <Mike, my SNR values are not very representative of what someone might see
> <because I have partial tree cover in that direction.
> <
> <But generally speaking, my SNR's have been as follows:
> <
> <> patch antenna:  2's with an occasional 3
> <
> <> TP-link 2.4GHz wi-fi dish:  6 to 8
> <
> <> 1m dish w/ helical feed:  11 to 12
> <
> <I'm using the Outernet LNA as well.  FYI, my signal improved dramatically
> <when I switched from the Outernet dongle to a metal-case rtl-sdr.com TXCO
> <dongle (please note that the bias-T will have to be enabled if you try one
> <of those).
> <
> <-Scott,  K4KDR
> <
> <
> <==============================================================
> <
> <-----Original Message-----
> <From: Mike Hoblinski
> <Sent: Saturday, October 15, 2016 10:35 PM
> <To: amsat-bb at amsat.org
> <Subject: [amsat-bb] Outernet L-Band Service
> <
> <I purchased the setup from Amazon and used the Raspberry Pi 3 board.
> <Its only been running for about a day and its downloaded some of the WX
> <info, APRS Lists, Pics, News. and Wiki lists. I am looking for a more
> <suitable
> <enclosure for outdoors.
> <
> <Its setup on a shelf about a foot in front of the window with Vertical
> <plastic
> <blinds closed and plastic window screen on the outside and it manages to
> <get enough of a signal to download the packets.
> <
> <I do see a problem once my computer and monitor are powered up and
> possibly
> <with the TV as well. I am powering it from the Raspberry PI wall wart for
> <now but
> <after a few days I want to try out my portable power pack and outdoor
> <locations.
> <
> <The patch antenna is mounted on a plastic sheet with the L-Band Amp, SDR
> <dongle, and Pi-3 on the other side. I have a tablet stand from the 99 cent
> <store
> <to tilt and aim the board for now.
> <
> <I was wondering what other users are seeing signal wise from their setup.
> <Mine shows
> <a SNR of only 2.8 and signal quality of around 3 to 4 on their setup
> screen
> <but appears
> <to do the job.
> <
> <Mike
> <
> <N6IMF
> <
> <_______________________________________________
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>
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
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