Re: [AFMUG] Multi-path, Reflections, and Ducting
This is 3 ghz, different freznel. But I think it may be slant, or maybe that was the 320. It's been a long time since I onboarded that system. It's hard to get techs to understand for sure. I always wanted to set up a water tray use the ripples to show destructive and constructive miltipath and the different ways freznel obstruction/reflectivity impacts the receiver side On Tue, May 14, 2024, 9:30 AM wrote: > I can’t remember, is the 450 slant polarity? > > > > > > *From:* AF *On Behalf Of *Steve Jones > *Sent:* Monday, May 13, 2024 12:41 AM > *To:* AnimalFarm Microwave Users Group > *Subject:* Re: [AFMUG] Multi-path, Reflections, and Ducting > > > > yep, til we switch to 450 we had one customer like this. the coolest part > was you could watch him harvest his field by his rssi. it was a perfect > example customer. two radios about 10 feet apart on the roof, each only > worked half the year > > > > On Fri, May 10, 2024, 3:58 PM Nate Burke wrote: > > Way back in the early days of FSK we did a poor mans spacial diversity for > a customer. Put an SM on either end of his roof, and told him to switch > cables if it stopped working. > > On 5/10/2024 3:53 PM, Chuck McCown via AF wrote: > > Yep, been hearing this for the last 20 years. > > Has to have something to do with ground reflections changing with the > crop. > > A space diversity setup would cure it. > > > > > > *From:* Nate Burke > > *Sent:* Friday, May 10, 2024 2:34 PM > > *To:* AnimalFarm Microwave Users Group > > *Subject:* [AFMUG] Multi-path, Reflections, and Ducting > > > > For those of you who don't have to deal with it, whatever it's called, > this is what us flatlanders have to put up with.At the top of the pipe, > the radio would only get a maximum of -76, at it's current height, it's at > -59. All happened last week when that hayfield grew. Signal was fine > before then, and it steadily lost signal all last week. (It is LOS to the > tower, the tower is just directly in line with the pipe in the picture) > > > > > -- > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] Multi-path, Reflections, and Ducting
5 GHz version is V/H. I believe the 3 GHz version is +/- 45 degree, although I don’t remember now if the SM is also. From: AF On Behalf Of dmmoff...@gmail.com Sent: Tuesday, May 14, 2024 8:39 AM To: 'AnimalFarm Microwave Users Group' Subject: Re: [AFMUG] Multi-path, Reflections, and Ducting I can’t remember, is the 450 slant polarity? From: AF mailto:af-boun...@af.afmug.com> > On Behalf Of Steve Jones Sent: Monday, May 13, 2024 12:41 AM To: AnimalFarm Microwave Users Group mailto:af@af.afmug.com> > Subject: Re: [AFMUG] Multi-path, Reflections, and Ducting yep, til we switch to 450 we had one customer like this. the coolest part was you could watch him harvest his field by his rssi. it was a perfect example customer. two radios about 10 feet apart on the roof, each only worked half the year On Fri, May 10, 2024, 3:58 PM Nate Burke mailto:n...@blastcomm.com> > wrote: Way back in the early days of FSK we did a poor mans spacial diversity for a customer. Put an SM on either end of his roof, and told him to switch cables if it stopped working. On 5/10/2024 3:53 PM, Chuck McCown via AF wrote: Yep, been hearing this for the last 20 years. Has to have something to do with ground reflections changing with the crop. A space diversity setup would cure it. From: Nate Burke Sent: Friday, May 10, 2024 2:34 PM To: AnimalFarm Microwave Users Group Subject: [AFMUG] Multi-path, Reflections, and Ducting For those of you who don't have to deal with it, whatever it's called, this is what us flatlanders have to put up with.At the top of the pipe, the radio would only get a maximum of -76, at it's current height, it's at -59. All happened last week when that hayfield grew. Signal was fine before then, and it steadily lost signal all last week. (It is LOS to the tower, the tower is just directly in line with the pipe in the picture) _ -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] Multi-path, Reflections, and Ducting
I can’t remember, is the 450 slant polarity? From: AF On Behalf Of Steve Jones Sent: Monday, May 13, 2024 12:41 AM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] Multi-path, Reflections, and Ducting yep, til we switch to 450 we had one customer like this. the coolest part was you could watch him harvest his field by his rssi. it was a perfect example customer. two radios about 10 feet apart on the roof, each only worked half the year On Fri, May 10, 2024, 3:58 PM Nate Burke mailto:n...@blastcomm.com> > wrote: Way back in the early days of FSK we did a poor mans spacial diversity for a customer. Put an SM on either end of his roof, and told him to switch cables if it stopped working. On 5/10/2024 3:53 PM, Chuck McCown via AF wrote: Yep, been hearing this for the last 20 years. Has to have something to do with ground reflections changing with the crop. A space diversity setup would cure it. From: Nate Burke Sent: Friday, May 10, 2024 2:34 PM To: AnimalFarm Microwave Users Group Subject: [AFMUG] Multi-path, Reflections, and Ducting For those of you who don't have to deal with it, whatever it's called, this is what us flatlanders have to put up with.At the top of the pipe, the radio would only get a maximum of -76, at it's current height, it's at -59. All happened last week when that hayfield grew. Signal was fine before then, and it steadily lost signal all last week. (It is LOS to the tower, the tower is just directly in line with the pipe in the picture) _ -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] Multi-path, Reflections, and Ducting
Good old fashion corn fade. From: AF On Behalf Of Steve Jones Sent: Sunday, May 12, 2024 11:41 PM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] Multi-path, Reflections, and Ducting yep, til we switch to 450 we had one customer like this. the coolest part was you could watch him harvest his field by his rssi. it was a perfect example customer. two radios about 10 feet apart on the roof, each only worked half the year On Fri, May 10, 2024, 3:58 PM Nate Burke mailto:n...@blastcomm.com>> wrote: Way back in the early days of FSK we did a poor mans spacial diversity for a customer. Put an SM on either end of his roof, and told him to switch cables if it stopped working. On 5/10/2024 3:53 PM, Chuck McCown via AF wrote: Yep, been hearing this for the last 20 years. Has to have something to do with ground reflections changing with the crop. A space diversity setup would cure it. From: Nate Burke Sent: Friday, May 10, 2024 2:34 PM To: AnimalFarm Microwave Users Group Subject: [AFMUG] Multi-path, Reflections, and Ducting For those of you who don't have to deal with it, whatever it's called, this is what us flatlanders have to put up with.At the top of the pipe, the radio would only get a maximum of -76, at it's current height, it's at -59. All happened last week when that hayfield grew. Signal was fine before then, and it steadily lost signal all last week. (It is LOS to the tower, the tower is just directly in line with the pipe in the picture) [cid:part1.FxVDKgXj.XhloAaCU@blastcomm.com] -- AF mailing list AF@af.afmug.com<mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com<mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
