With the way Tarana does beam forming, interference from it is likely to be intermittent. Maybe a longer duration spectrum analysis would detect the noise, or just turn tx off and watch if RSL goes above background?
On Wed, Jul 23, 2025 at 3:04 PM Josh Luthman <[email protected]> wrote: > 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 >> > -- > 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
