[MVMA] Happenings through 11:59PM 10/11/2022
Chuck Gelm
nc8q-aredn at gelm.net
Wed Oct 12 08:08:20 EDT 2022
I am trying to avoid big dishes at the high profile sites.
Especially large dishes for downlinks to terminal stations.
At MVHS it is a mechanical nightmare to have so many dishes on that
original harness.
:-|
1st choice is for the high profile sites to have wide beamwidth panel
style (and small and light weight) devices
(the point of the point-to-multipoint) and
the terminal user to use sufficient gain to achieve the link
(the multipoint side).
The link from Xenia to MVHS was poor (~20 TxMbps) and using channel 165.
*IMHO, Mikrotiks' power seems to roll-off above channel 161.*
I wanted to move that link down to around channel 131-145.
Since the link to Miamisburg (MVHS<>PP) was good and inactive,
I split its channel 145 into 144 and 146 @ 10 MHz.
I moved the Xenia<>MVHS link to 146 at 10 and the MVHS<>PP link to 144 at 10.
Tim had moved his link to the same channel as the MVHS<>Xenia link and
had seen good results.
I did not want Tim to make the MVHS<>Xenia link become a multipoint
link, so I
moved the MVHS<>Bellbrook link to 165 same as the MVHS<>Xenia link.
Then I used to new firmware features to block Tim from linking with the
KE8MVM-LHG-MVHS-XeniaNorth.
I left MVHS<>Bellbrook on 165 at 20.
Tim's link to MVHS was getting 80 TxMbps at this time.
I sent an email @MVMA and a copy to Tim to indicate what I was testing.
Tim may not have read the email until after 10 PM last night.
Tim changed channels on the Bellbrook link. :-(
Later last night I explained to Tim what I did and why.
Currently the 'distance management features' have been disabled and all
seems well to me.
Tim is now subscribed to this mail list.
-----
There are 7 active channels at MVHS!
I am wanting to move W8LRJ and WD8BRP onto 10 MHz BW channels because
their links have low SNR
and they are not offering high bandwidth services. I want to try to
split channel 133 at 20 into
channel 132 at 10 for W8LRJ and channel 134 at 10 for WD8BRP (or <>).
73, Chuck
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