<div dir="ltr">Thanks for the heads-up. The module I'm using certainly is expensive compared to that, but the goal is to provide corrections to enable centimeter level accuracy for a rover - so it pretty much needs an RTK engine. It's also helpful to have multiband and all the constellations. Mo signal == mo better. I've had pretty good experiences with the F9P and am sticking with it for now, even though there are slightly cheaper RTK options available.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Dec 30, 2020 at 2:16 PM Tom Brusehaver <<a href="mailto:cozytom@gmail.com">cozytom@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">If you want a cheaper GPS module, I used a ublox 7m that didn't work on my drone. These are also on eBay for about $15.<div dir="auto"><br></div><div dir="auto"><a href="http://enginemonitor.blogspot.com/2020/09/gps-module.html?m=1" target="_blank">http://enginemonitor.blogspot.com/2020/09/gps-module.html?m=1</a><br></div><div dir="auto"><br></div><div dir="auto"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Dec 30, 2020, 2:04 PM Ed Okerson via DPRGlist <<a href="mailto:dprglist@lists.dprg.org" target="_blank">dprglist@lists.dprg.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Karim,<br>
<br>
I have been contemplating a similar installation. What wifi AP's did you <br>
go with?<br>
<br>
Ed<br>
<br>
On 2020-12-29 22:58, Karim Virani via DPRGlist wrote:<br>
> The GPS will be an RTK base station published on rtk2go. It's using a<br>
> ublox F9P receiver connected to this antenna.<br>
> <a href="https://www.sparkfun.com/products/17382" rel="noreferrer noreferrer" target="_blank">https://www.sparkfun.com/products/17382</a><br>
> <br>
> The weather station is one of the cheaper options I found on Amazon<br>
> <a href="https://www.amazon.com/gp/product/B01N5TEHLI" rel="noreferrer noreferrer" target="_blank">https://www.amazon.com/gp/product/B01N5TEHLI</a> - it was more of a<br>
> nice-to-have afterthought since I knew I needed to put a mast up above<br>
> the trees. So it's a lower priority. But the weather station wants to<br>
> be on top of the pole - so I'll have to Tee or fork the top because I<br>
> want the GPS antenna unobstructed. I don't really care if the wind<br>
> speed or direction is affected a little by the GPS extension but<br>
> probably don't want to obstruct the solar cell.<br>
> <br>
> Also putting 3 outdoor directional wifi APs a bit lower on the pole.<br>
> <br>
> It will all be chimney mounted ending up at least 12ft above the<br>
> highest parts of the roof and all nearby trees. The hardest part right<br>
> now seems to be sourcing the right pole with a custom mount and<br>
> capable of being rigid enough without buckling under max wind loads.<br>
> Probably going with a 2" 8 gauge 6061 tube.<br>
> <br>
> On Tue, Dec 29, 2020 at 9:01 PM Gil <<a href="mailto:gilcarrick@gmail.com" rel="noreferrer" target="_blank">gilcarrick@gmail.com</a>> wrote:<br>
> <br>
>> I would like to hear more about your GPS base station slash weather<br>
>> station.<br>
>> <br>
>> --<br>
>> <br>
>> Gil<br>
>> <br>
>> web page: <a href="http://gilcarrick.com/agc/" rel="noreferrer noreferrer" target="_blank">http://gilcarrick.com/agc/</a><br>
>> <br>
>> Gil Carrick, 1012 Portofino Dr., Arlington, TX, 76012<br>
>> <br>
>> 817-994-9213 (cell) gil.carrick (Skype)<br>
>> <br>
>> From: DPRGlist <<a href="mailto:dprglist-bounces@lists.dprg.org" rel="noreferrer" target="_blank">dprglist-bounces@lists.dprg.org</a>> On Behalf Of Karim<br>
>> Virani via DPRGlist<br>
>> Sent: Tuesday, December 29, 2020 4:47 PM<br>
>> To: dprglist <<a href="mailto:dprglist@dprg.org" rel="noreferrer" target="_blank">dprglist@dprg.org</a>><br>
>> Subject: [Dprglist] off topic - wind map<br>
>> <br>
>> I was looking for a map of prevailing winds in Dallas while<br>
>> designing a mast for a GPS base-station antenna and weather station<br>
>> combo. I stumbled across this map of current wind conditions. Just<br>
>> found it very beautiful/compelling and decided to share:<br>
>> <br>
>> <a href="http://hint.fm/wind/" rel="noreferrer noreferrer" target="_blank">http://hint.fm/wind/</a><br>
>> <br>
>> -Karim<br>
>> <br>
>> ps. I subsequently found a wind rose plot for Ft. Worth that gave me<br>
>> the answer I needed and it was the expected due South as the highest<br>
>> frequency direction.<br>
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