[HamWAN PSDR] Kitsap County Gold Mountain HamWAN Attempts, Dish and Sector Antennas K7MM

Daniel Ransom danra995 at yahoo.com
Wed Jan 27 14:22:19 PST 2016

Tom,Thanks for the tip!  The MIMO function is on:
[admin at K7MM-QRT5->Gold] >> interface wireless print advanced 
Flags: X - disabled, R - running 
 0  R name="wlan1-gateway" mtu=1500 mac-address=E4:8D:8C:F6:7F:34 arp=enabled 
      ht-basic-mcs=mcs-0,mcs-1,mcs-2,mcs-3,mcs-4,mcs-5,mcs-6,mcs-7 tx-chains=0,1 
      rx-chains=0,1 amsdu-limit=8192 amsdu-threshold=8192 tdma-period-size=2 
      nv2-queue-count=2 nv2-qos=default nv2-cell-radius=30 nv2-security=disabled 
I went back to the "south 40" and confirmed the aim and tilt.  This afternoon my "kite" panel is getting -80 dBm.
Next I tried to run on only the '0' and only the '1' antennas with the "interface wireless set 0 tx-chains=n and rx-chains=n" commands.  The result:  no signal.  Is there another way to use only one antenna polarization for testing?73 from Dan at K7MM

      From: Tom Hayward <tom at tomh.us>
 To: Daniel Ransom <danra995 at yahoo.com>; Puget Sound Data Ring <psdr at hamwan.org> 
 Sent: Wednesday, January 27, 2016 11:03 AM
 Subject: Re: [HamWAN PSDR] Kitsap County Gold Mountain HamWAN Attempts, Dish and Sector Antennas K7MM
On Mon, Jan 25, 2016 at 6:12 PM, Daniel Ransom via PSDR <psdr at hamwan.org> wrote:
> Today I put up my new QRT5 MIMO panel (does MikroTik not know that QRT means
> to stop sending?!!!).  I have better signal strength at -80 dBm.  The signal
> strength on the Laird SA58-90-17-WB/Metal S5HPn has been slipping to around
> -84 dBm today.  So, by going MIMO, I got at least 3 dB better in actual
> signal strength on the QRT5--should it be more?.  Either the 3dB or the MIMO
> (or both) give me slightly better reliability on the QRT5, where the Worst
> times for the hops in the Tools > Traceroute display have less variance than
> on the sector/Metal combination.


Your signal is just barely on the margin of functional. Hopefully this
can be resolved. Maybe the wind / tree movement has changed your aim
for the worse.

Looking at the stats on the sector, it looks like you don't have MIMO
enabled on the QRT5. You could stand to gain some better performance
by enabling this. What do you see when you run
/interface wireless print advanced?

I'd expect to see tx-chains=0,1 rx-chains=0,1. You can set this if needed:
/interface wireless set 0 tx-chains=0,1 rx-chains=0,1


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