From: DK7FC <73dk7fc@googlemail.com>
Message-ID: <5402465F.1050101@gmail.com>
Date: Sat, 30 Aug 2014 23:47:11 +0200
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To: rsgb_lf_group@blacksheep.org
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Subject: LF: OT, Remote site, garden progress
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Status: RO

Hi VLF/LF/MF,

Today i've done some important steps on the way to my remote RX site for 
VLF/LF/MF:

- Installed the 20W solar module into a tree, about 15m above ground, 
see https://dl.dropboxusercontent.com/u/19882028/20140830_171058.jpg
- Installation of the cable down to the shed is finished. I can now 
charge 12V lead acid batteries for various experiments!
- Cut some branches to get a better view to the south where the 
permanent WLAN link will be established. Now the 2.4 km path is quite 
good visible, 
https://dl.dropboxusercontent.com/u/19882028/20140830_171125.jpg
- While sitting in the tree i started my netbook, connected a USB WLAN 
stick, started inSSIDer software to check the signal levels of my WLAN 
access point (AP) and the channel usage. I bought 2 yagis, having "18 
dBi gain" and directed them as good as possible. Without any problems i 
managed to get access to the AP in the first attempt! Signal levels over 
2.4 km distance were up to -59 dBm which is quite a good SNR. 
Orientation of the antenna was not as critical as expected.

Thus it appears to be most promising to achieve a reasonable data rate 
for the remote link, hopefully even during rain or snow.

Next step will be a fixed installation of the antenna and SNR 
optimisation. BTW it is this type of antenna: 
http://www.amazon.de/WLAN-Antenne-Yagi-18dBi-Stecker/dp/B004RAH7OG/ref=sr_1_4?ie=UTF8&qid=1409434866&sr=8-4&keywords=18+dbi+yagi

Sorry, this is mostly OT but i know there are a few OMs interested in 
remote sites for VLF/LF/MF bands and this may be useful for them and so 
for us, if they will realise a similar project.

73, Stefan