Did you do a spectrum scan? On Wed, Jul 23, 2025 at 3:55 PM TJ Trout <[email protected]> wrote:
> 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 >>> >> -- > AF mailing list > [email protected] > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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