[HamWAN PSDR] Site details?

Fri Mar 17 17:34:25 PDT 2023

I can see nothing from my roof.  From my original mail, "For example it looks like I "only" need a 35' mast for Baldi, but at 28mi away I'm not sure I can get connected reliably, vs Beacon or Capitol Park which are much closer but I'd need at least a 66' mast thanks to local terrain and trees."  Local terrain and trees are a challenge here which is why I want to gather and simulate as much as I can before I try to do something that a simulation would rule out.

On Thu, Mar 16, 2023, at 22:17, Tom Hayward wrote:
> I can appreciate the desire to play around with the mapping tools and 
> coverage models. I have done a lot of that myself.
>
> We've found that the most reliable predictor of coverage, aside from an 
> RF survey, is a pair of binoculars. Can you see the tower while 
> standing on your roof? 
>
> Tom KD7LXL 
>
> On Thu, Mar 16, 2023, 21:17 Nick Kartsioukas <nick at explodinglemur.org> wrote:
>> Because I enjoy playing around with radio coverage mapping tools and want to have the closest representation of reality?
>> I'm in an exceptionally non-optimal area for PSDR, so I want to have as much information as I can about required mast height and link budget for each site before I go actually installing anything.
>> 
>> On Thu, Mar 16, 2023, at 15:45, Stephen Kangas wrote:
>> > Nick, I'm not certain why precision matters here.  My experience 
>> > working with Bart & Doug assisting them putting up the Rattlesnake Mtn 
>> > sector is that they may deviate from the exact bearing only to provide 
>> > better coverage to the area below, avoiding obstacles and focusing on 
>> > the user community.  We're not talking really narrow beams here.  You 
>> > should be able to expect that if there is a sector antenna pointed to 
>> > your area that it is optimized for your chances of connection 
>> > regardless of how precise the sector antennas matches 0deg N bearing 
>> > offsets.
>> >
>> > FWIW, Stephen W9SK
>> >
>> >
>> > -----Original Message-----
>> > From: PSDR <psdr-bounces at hamwan.org> On Behalf Of Carl Leon
>> > Sent: Thursday, March 16, 2023 3:16 PM
>> > To: 'Puget Sound Data Ring' <psdr at hamwan.org>
>> > Subject: Re: [HamWAN PSDR] Site details?
>> >
>> > Those are the standard. I think there is one single sector site where 
>> > that varies, but am not certain.
>> > Carl, N7KUW
>> >
>> > -----Original Message-----
>> > From: PSDR <psdr-bounces at hamwan.org> On Behalf Of Nick Kartsioukas
>> > Sent: Thursday, March 16, 2023 9:51 AM
>> > To: psdr at hamwan.org
>> > Subject: Re: [HamWAN PSDR] Site details?
>> >
>> > Sorry, I phrased that part poorly.  Are all sectors aligned at 
>> > 0/120/240 when present, or do they deviate from those bearings?
>> >
>> > On Thu, Mar 16, 2023, at 08:26, Doug Kingston wrote:
>> >> Not all the cell sites have every sector.  If a cell site is on the 
>> >> side of a hill or has a large obstruction immediately adjacent, we 
>> >> omit the sector facing into the obstruction as it would not serve any 
>> >> useful purpose.
>> >> We have tried to depict the available sector in the map on the 
>> >> website, but you may need to zoom in to see that detail.  If you have 
>> >> questions about particular sites, Feel free to contact me directly
>> >> (dpk at randomnotes.org) or mail the netops@ list or ask on our IRC 
>> >> channel.
>> >>
>> >> -Doug-
>> >>
>> >> On Wed, Mar 15, 2023 at 9:15 PM Nick Kartsioukas 
>> >> <nick at explodinglemur.org> wrote:
>> >>> I've been able to find location info for most of the PSDR sites and antenna height info for some of them.  Do they all have sectors pointing 0/120/240 degrees relative to north?  Is there anywhere that has EIRP info?  I'm trying to see how tall a mast I need to get connected, and whether or not I can even make link for some of the sites.  For example it looks like I "only" need a 35' mast for Baldi, but at 28mi away I'm not sure I can get connected reliably, vs Beacon or Capitol Park which are much closer but I'd need at least a 66' mast thanks to local terrain and trees.
>> >>> At the moment I'm using https://ispdesign.ui.com/ (which now has LIDAR data for buildings/trees!) and have also used RadioMobile Deluxe in the past.
>> >>> 
>> >>> Thanks!
>> >>> _______________________________________________
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