Also only one side receiver is showing errors but the modulation is affected in both TX directions. SNR and RSL remain unchanged since install!
On Wed, Jul 23, 2025, 12:53 PM TJ Trout <[email protected]> wrote: > So this 6ghz link is still acting up, connects at 4096 qam and demodulates > to each lower order modulation step by step about every 1 second, once it > reaches the lowest modulation it drops connection and immediately repeats > the same behavior again. I've replaced both radios and performed spectrum > analysis and found no interference. One side we replaced the DC power > supply and the other side has many links but this is the only link > misbehaving. > > Working with the mfg (aviat) but even they seem baffled at this point. > > Link was installed 5 years ago and performed flawless with no > configuration changes since installation. > > Maybe the borg can help? > > On Wed, Jun 18, 2025, 10:15 AM Ken Hohhof <[email protected]> wrote: > >> Unlikely, but something that occurs to me is that if I remember >> correctly, unlicensed 6 GHz CPE radios are allowed to transmit at +30dBm >> EIRP while trying to contact the AFC, and then at +36dBm if given >> permission by the AFC. So it’s not like they can’t transmit at all without >> OK from AFC, or are limited to very low power like indoor CPE. >> >> >> >> I think they first need to see the AP, which needs AFC permission, so a >> total screwup seems unlikely. >> >> >> >> *From:* AF <[email protected]> *On Behalf Of *Eric Nielsen >> *Sent:* Tuesday, June 17, 2025 7:33 AM >> *To:* AnimalFarm Microwave Users Group <[email protected]> >> *Subject:* Re: [AFMUG] 6ghz (lower) interference >> >> >> >> Send me a PM with the coordinates and/or callsign of the receiver that's >> getting the interference. I'll run the site and tell you if I see anything >> in the general area that could be suspect. >> >> If the link continues to receive interference, like others said, you >> should run a frequency scan to identify the interfering emission and its >> bandwidth. If the bandwidth is 40, 80, or 160 MHz, that's probably >> unlicensed. >> >> >> >> Lastly, if the problem persists, you should report it through the AFC >> interference portal: www.afcoperators.org >> >> >> >> On Mon, Jun 16, 2025 at 4:53 PM TJ Trout <[email protected]> wrote: >> >> One of our aviat lower 6ghz links started taking errors on one side, I >> haven't looked yet but I suspect it's interference from unlicensed ptp/ptmp >> gear, is this even worth chasing? It seems like I might be better off >> moving channels or bands? >> >> >> >> -TJ >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> -- >> AF mailing list >> [email protected] >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >
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