[HamWAN PSDR] Getting connected to HamWAN

Tue Jun 29 12:39:14 PDT 2021

For that long a shot, the trees will absolutely be a total show stopper. You must have true, real, actual, (look through binoculars and see) line of sight.  You can shoot through trees for a ¼ mile or so, but not for 20+ miles.  There is one other consideration, the Fresnel zone. That is a cigar shaped elliptical around the center true line of sight that should also be clear.  In the case of your shot, the Fresnel zone has a roughly 68 foot radius, which means your line of site shot should be 68 feet above the tree tops.

For the distance of your shot I would recommend the Dynadish5 as the absolute minimum, and possibly the mANT30 dish with associated routerboard. The LHG mesh background just doesn’t have the gain you will need.

Carl, N7KUW

From: PSDR <psdr-bounces at hamwan.org> On Behalf Of Jesse Victors via PSDR
Sent: Tuesday, June 29, 2021 12:31 PM
To: wa7jh at outlook.com; psdr at hamwan.org
Subject: Re: [HamWAN PSDR] Getting connected to HamWAN

Hi Jamie,

Thanks again for this information. I been weighing some options and I recently plotted the RF path and took at look at the terrain and obstructions. The LHG XL HP5 has a beamwidth of 6.4 degrees, so I drew a plot on a map. As you can see, I've got some trees in the way for the first mile. After I get to the line in red, the elevation drops and I'm completely clear all the way to Haystack. I'm planning on mounting my dish outside on a pole and it will have an elevation of about 35 feet. This should make me clear of rooftops and most obstructions, but I've still got some trees in the way as you can see from my chart. Total distance will be 34 km, elevation change will be +998m, so an upward angle of 1.68 degrees. 

In your opinion, or if anyone else has more thoughts on this, do you think that the treetops will be a showstopper at that distance or do you think the LHG XL HP5 dish can punch through and get at least 1 Mbits? Any way that I could accurately guess, or do I just need to set it up and find out?

Jesse
KJ7YLS

-------- Original Message --------
On May 28, 2021, 12:00 PM, Jamie Hughes < wa7jh at outlook.com <mailto:wa7jh at outlook.com> > wrote:

Hi Jessie,

I’ve seen the responses so far and I think you deserve a little more.

5 GHz requires unobstructed Line of Sight (LoS) this means if you can’t see it, you can’t work it (reliably). While it is wireless and penetrates through things, the process for going through things causes signal distortion, degradation, attenuation, fading, and multipath. All bad things when dealing with data over the air. Also, not sure what your planned use would be, but HAMWAN isn’t your typical internet service provider.

Out of your options #1 seems the best, but if those windows are tinted, then, you are SOL.

The LHG HP5 is a great choice: MikroTik Routers and Wireless - Products: LHG HP5 <https://mikrotik.com/product/RBLHG-5HPnD> 

You will likely desire a mounting option: MikroTik Routers and Wireless - Products: solidMOUNT <https://mikrotik.com/product/solidmount> 

I recommend Streakwave

MikroTik RBLHG-5HPnD-XL 5GHz LHG 27dBi 802.11an 2x2 ROW (streakwave.com) <https://www.streakwave.com/mikrotik-rblhg-5hpnd-xl-5ghz-lhg-27dbi-802-11an-2x2-row>  This is the high-power version for $81

MikroTik solidMOUNT Advanced Pole Mount Adapter for LHG (streakwave.com) <https://www.streakwave.com/mikrotik-solidmount-advanced-pole-mount-adapter-for-lhg> : Mount for $27.55

You will need to email a copy of your amateur license to William Book William.Book at streakwave.com <mailto:William.Book at streakwave.com>  to prove you’re a ham.

Super easy to work with. Shipping is where they will get you, so be ready for that.

My club runs 3 dishes, all purchased from Streakwave with the help of Bill.

Feel free to reach out direct if you need anything else.

Jamie Hughes

WA7JH

Phone:  <tel:+13603408886> (360) 340-8886

From: PSDR <psdr-bounces at hamwan.org <mailto:psdr-bounces at hamwan.org> > On Behalf Of Jesse Victors via PSDR
Sent: Friday, May 28, 2021 9:51 AM
To: psdr <psdr at hamwan.org <mailto:psdr at hamwan.org> >
Subject: [HamWAN PSDR] Getting connected to HamWAN

Hey everyone!

HamWAN has been on my radar for a couple months and I wanted to get connected. I have a couple options.

1) if 5 GHz can pass through double-paned glass, then I could point an antenna through the window from my work office in downtown Seattle, connecting with the hubs nearby or across the water.

2) if 5 GHz can pass through tree leaves, I could mount the dish on the mast holding the center of my HF fan dipole, as shown here: https://www.qrz.com/db/kj7yls <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.qrz.com%2Fdb%2Fkj7yls&data=04%7C01%7C%7C3304a5184ed24c1fad6c08d921f8ea6e%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637578175237522509%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=5xMsIP5GX5dWJYB5p6ypVv97hVe52MvZaZb%2FOeWxc3s%3D&reserved=0>  At a height of 30 feet it might be able to connect with Paine.

3) if 5 GHz can pass through a thin piece of plywood and tree leaves, I could mount the antenna in my attic. That should be tall enough to jump over my neighbors house I think.

Which of these would work? I'm leaning towards the first option. The second would work but it would just be more logistically difficult. I believe the third option would suffer significant signal degradation, yes?

As far as antennas go, the LHG 5 seems to have pretty good performance, is within my hobby budget, and should work for the links that I have in mind, yes? It should also be lighter and more wind-resistant since its hollow. I should be able to mount that on a pole, connect PoE, and then work on the routing, correct? If this is a decent choice, where is a good place to order the International edition?

Thanks for any advice with this!

Jesse
KJ7YLS

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