<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">David,<div class=""><br class=""></div><div class="">Looking at your linked page, the '/interface wireless monitor 0’ command results are the most telling.</div><div class=""><pre style="font-variant-ligatures: normal; orphans: 2; widows: 2;" class=""></pre><blockquote type="cite" class=""><pre style="font-variant-ligatures: normal; orphans: 2; widows: 2;" class="">[admin@WA9ONY-LARCH] > /interface wireless monitor 0
status: connected-to-ess
channel: 5880/5/an
wireless-protocol: nv2
tx-rate: 1.8Mbps-5MHz/1S/SGI
rx-rate: 1.6Mbps-5MHz/1S
ssid: HamWAN
bssid: 64:D1:54:6A:64:26
radio-name: S3.Larch/K7WAN
signal-strength: -81dBm
signal-strength-ch0: -105dBm
signal-strength-ch1: -81dBm
tx-signal-strength: -84dBm
tx-signal-strength-ch0: -90dBm
tx-signal-strength-ch1: -86dBm
noise-floor: -105dBm
signal-to-noise: 24dB
tx-ccq: 9%
rx-ccq: 6%</pre></blockquote><div class="">Here you’re seeing a reported “signal strength” of -81, but bear in mind that it’s a bit misleading because this is a two way connection, it’s important to also look at how the cell site is hearing you, the “tx-signal-strength” figures, and what your ccq’s are.</div><div class=""><br class=""></div><div class="">We usually see -90 being the threshold of being able to see anything at all. -80 or below being pretty marginal signals. Below -70 is getting into better territory. Above -70 is where we would expect the best performance.</div><div class=""><br class=""></div><div class="">With regards to the ccq figures, consider those a “success rate”, in the above data, only 9% of your transmitted frames are making it to the cell site successfully, and even worse you’re only getting 6% on RX. Trying to push internet (or much of anything at all), through that much loss is definitely problematic.</div><div class=""><br class=""></div><div class="">In this case, your signals are pretty weak to begin with, and that is shown in the ccq’s, it’s also possible to have good signal strengths and still get bad ccq figures if there’s lots of noise/interference/etc that interferes with proper frame decoding.</div><div class=""><br class=""></div><div class="">Also, you should make sure both chains are enabled on your radio. ‘/interface wireless set 0 tx-chains=0,1 rx-chains=0,1’ They may be already, but it’s always good to check since sometimes the stock config doesn’t have them enabled.</div><div class=""><br class=""></div><div class="">Nigel</div><div><br class=""><blockquote type="cite" class=""><div class="">On Nov 6, 2018, at 10:42, David Haworth via PSDR <<a href="mailto:psdr@hamwan.org" class="">psdr@hamwan.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html; charset=us-ascii" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><font size="2" face="Arial" class="">What signal strength is needed for Internet connection with Larch Mountain cell site?</font><div class=""><font size="2" face="Arial" class=""><br class=""></font></div><div class=""><font size="2" face="Arial" class="">During my experiments on doing a site survey of HamWAN Larch Mountain cell site at 71.9 miles I received the signal in the -80s but I could not connect to the Internet.</font></div><div class=""><font size="2" face="Arial" class="">For details of the routerOS terminal log of 71.9 miles connection see.</font></div><div class=""><a href="http://www.stargazing.net/david/sdr/HamWAN.html#P2b" class=""><font size="2" face="Arial" class="">http://www.stargazing.net/david/sdr/HamWAN.html#P2b</font></a></div><div class=""><font size="2" face="Arial" class=""><br class=""></font></div><div class=""><font size="2" face="Arial" class="">Best distance for Internet connect at <span style="text-align: -webkit-center;" class="">0.99 Mbps download and</span></font></div><div class=""><font size="2" face="Arial" class=""><span style="text-align: -webkit-center;" class="">1.67 Mbps upload</span> is 43 miles with a signal in -74.</font></div><div class=""><a href="http://www.stargazing.net/david/sdr/HamWAN.html#P2a" class=""><font size="2" face="Arial" class="">http://www.stargazing.net/david/sdr/HamWAN.html#P2a</font></a></div><div class=""><font size="2" face="Arial" class=""><br class=""></font></div><div class=""><font size="2" face="Arial" class="">My site survey map is at</font></div><div class=""><a href="http://www.stargazing.net/david/sdr/HamWAN.html#P2" class=""><font size="2" face="Arial" class="">http://www.stargazing.net/david/sdr/HamWAN.html#P2</font></a></div><div class=""><font size="2" face="Arial" class=""><br class=""></font></div><div class=""><font size="2" face="Arial" class=""><br class=""></font></div><div class=""><font size="2" face="Arial" class="">73 David WA9ONY</font></div></div>_______________________________________________<br class="">PSDR mailing list<br class=""><a href="mailto:PSDR@hamwan.org" class="">PSDR@hamwan.org</a><br class="">http://mail.hamwan.net/mailman/listinfo/psdr<br class=""></div></blockquote></div><br class=""></div></body></html>