[MVMA] NC8Q<>MVHS link musings

[Chuck Gelm]

  I am anxiously monitoring the 3 and 5 GHz links between home and MVHS for
attenuation due to the return of leaves. The 3 GHz link has been a steady
100% LQ/NLQ at 4.9 to 6.5 TxMbps. I have left the bandwidth set to 5 MHz in
order to give primary benefit to voice telephony. What data services I 
do have
would be not significantly benefit from a higher speed link. Currently I 
have
web server, PBX, and MeshChat services running.

  I have tested a 5 GHz link from home to a MVMA-NS-M5-XM node at MVHS.
In the very cold days of winter I tested a NS-M5<>NS-M5 'barefoot' link. It
consistently ran 6 dB below the NS-M3<>NS-M3 3 GHZ 'barefoot' link. When
the weather warmed, both the 3 and 5 GHz links faded into the noise floor.
The installation of the smaller-reflectors on the 3 and 5 GHz nodes at MVHS
reestablished stable links to home. Most recently I have replaced a
NS-M5-large-reflector at  home with a PBE-M5-400. Currently the PBE-M5-400
is mis-aimed, but is maintaining a steady MCS0 link. I hope to re-aim the
PowerBeam to compare link quality and speed to 3 GHz.

  I anticipate that the MVMA NS-M5-XM at MVHS will be re-purposed sometime
in the future. Around that time I hope to move the my NS-M3 at MVHS to the
top mount on its mast and replace its smaller-reflector with a 
larger-reflector.
If MVMA wishes, it may retain the smaller-reflector for use at MVHS when its
NS-M5 is re-purposed.

  The 900 MHz link from me to MVHS failed, most likely due to being about 20
feet from a 930 MHz 250 watt transmitter. :-|

  All attempts on 2397 MHz have failed. I have used a NS-M2, bullet-omni,
bullet-grid-dish, NS-locoM2, NS-locoM2-large-reflector.

Chuck