I have really not been impressed with Radiowaves' quality control in the past. We bought a whole series of 80 GHz 60 cm high performance dishes (cylindrical waveguide) which came with lots of little metal bits rolling around inside them. They'd drilled out the holes for the side shroud radome attachment as the last step in the manufacturing process, leaving all the drill shavings inside the dish. Many metal shavings trapped inside the side-wall foam.
I discovered this by picking one up to mount a radio on it. When I rotated the dish 90 degrees I heard a ticking sound of small metal scrapings bouncing around on the interior surface of the dish. There was nothing wrong with the feed/waveguide assembly, however. Fun times. On Tue, Aug 30, 2016 at 4:16 PM, Daniel White <[email protected]> wrote: > Well if it is the dish… it would be the feedhorn. > > > > Bad feedhorns are so rare with Radiowaves, RFS, Commscope I didn’t even > think about it. > > > > Daniel White > > Managing Director – Hardware Distribution Sales > > ConVergence Technologies > > Cell: +1 (303) 746-3590 > > [email protected] > > > > *From:* Af [mailto:[email protected]] *On Behalf Of *Sean Heskett > *Sent:* Tuesday, August 30, 2016 5:32 PM > *To:* [email protected] > *Subject:* Re: [AFMUG] Mimosa B11 issue > > > > i guess that's a possibility. the only other dish we have available is a > 3' that is for the other link we are installing, guess we could try that > just to see what happens. > > > > On Tue, Aug 30, 2016 at 3:50 PM, Jaime Solorza <[email protected]> > wrote: > > Did you swap dishes? I have had bad dishes right out of the box... > Especially the first 1 ft. 5GHz dishes from Radio waves way back when God > was a child. > > > > On Aug 30, 2016 3:36 PM, "Sean Heskett" <[email protected]> wrote: > > i guess you could ask what would make one side of a link 10db weaker than > the other. > > > > mimosa tech support seems to be stumped as well. not sure where to go > from here. The B5s we've used are awesome...the B11 so far seems a bit > half baked :-/ > > > > -sean > > > > > > On Tue, Aug 30, 2016 at 12:11 PM, Jaime Solorza <[email protected]> > wrote: > > I will attending a Mimosa certification class tomorrow all day... Any > questions I should ask? > > > > On Aug 30, 2016 11:21 AM, "Sean Heskett" <[email protected]> wrote: > > Hi Gang, > > > > I've already contacted mimosa support and they seem to be stumped too, so > i thought I'd check with y'all to see if you've seen the same issue. > > > > We have a B11 link that is 6 miles clear LOS (we currently have a > dragonwave horizon compact plus 18Ghz link in place that the B11 will be > replacing). The PCN states we should have a -42.5 the B11 interface states > we should have a -40.9. On the near side with is also the AP side we have > a -42 (as expected) however on the far side (station side) we have a > -53.2. Both sides are using the Jirous 2' dishes. We've tried swapping > radios on both sides, i've downgraded to 1.3.1 and back to 1.4.1 and we've > moved the dishes 5' vertically on both sides with no change. the station > side is always about 10-12db worse. We are not on a sidelobe since the > other radio is at expected signal level. > > > > Mimosa has stated they are "looking into it" and they have another > customer with a similar problem. I've provided them VPN access and they > have run some diagnostic scripts. It's been almost 2 weeks since I first > contacted mimosa and they don't have any answer other than "we are working > on it". > > > > I'm ready to switch vendors to another product. We have to get this link > live because it's going to start snowing here soon. Anyone else have this > issue or have any other ideas of what to try?? > > > > -Sean > > > > > > > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=icon> > Virus-free. > www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient&utm_term=link> >
