[MVMA] Recent upgrade DARA <> MVHS 13.5 miles
Chuck Gelm
nc8q-mesh at gelm.net
Mon Nov 26 17:27:38 EST 2018
On 11/25/2018 07:21 PM, Moe wrote:
>
>
>> On Nov 25, 2018, at 15:25, Chuck Gelm <nc8q-mesh at gelm.net
>> <mailto:nc8q-mesh at gelm.net>> wrote:
>
>> After this success, there seems to be some discussion about creating
>> a DARA <> XWARN link.
>
> This success was HUGE for the MVMA.
What is huge is the new 13.5 mile RF link. It is our longest link.
What is huge is the 31.7 miles spanned in 4 RF links.
What is huge is the 14 ms latency across this 31.7 mile span.
> We now have an all RF path from XWARN in North Xenia all the way up
> through DARA to AE8I near Tipp City… but with no redundancy. If the
> MVMA MVHS or MVMA W Xenia Water tank sites go down, the XWARN site is
> orphaned, as are any AUXCOMM stations deployed in Xenia.
What is not huge is that there are (0) zero AUXCOMM stations in Greater
Xenia.
>
> With a DARA <> XWARN link, the MVMA would have a redundant triangle
> consisting of DARA (B-Road), MVMA (MVHS), and XWARN (North Xenia) sites.
>
> <image removed>
>
>
>> .... I'd recommend high gain dishes (~27 dBi) and 28 dBm transmitters
>> at each end.
>
> The newly AREDN-supported MikroTik grid reflector nodes I previously
> recommended off list for this application meets those specs.
>
> https://www.streakwave.com/itemdesc.asp?ic=LHG-XL-HP5
>
> That’s the international version but it appears the US version may
> cover our channels with AREDN firmware.
>
>> Is XWARN interested?
>
> Is MVMA interested?
>
> This isn’t just for XWARN. It provides a redundant DARA B-Road <> MVMA
> MVHS path if one of the nodes in that link go down. It provides a link
> from MVMA MVHS through DARA to the MVMA W Xenia water tank site if one
> of the nodes in that MVMA link go down.*It benefits the MVMA*, which
> includes DARA and XWARN. It’s not us vs them.
"It provides a link from MVMA MVHS through DARA to the MVMA W Xenia
water tank site if one of the nodes in that MVMA link go down."
Redundancy in this link could also be improved by linking MVHS to
W-Xenia-water-tank not on 2397 MHz.
>
> N8ADO, KA8ZKR, and I are XWARN members. I can’t speak for them, but I
> am interested, as should be anyone who cares about AUXCOMM, especially
> in the Xenia tornado target zone.
Thus far, we are speaking for them.
> XWARN funding would have to be discussed and approved at a meeting.
Do you mean the Xenia<to>DARA funding would have to be discussed at a
XWARN meeting?
>
> *Considering the benefits, the MVMA as a whole should be interested.*
> I suggest we address this at the next meeting.
Considering the benefits, the XWARN as a whole should be interested.
Individually we each have our opinions.
Speaking for the MVMA within the scope of the written documentation of
its purpose,
I am seeking a modicum of interest from XWARN so that this issue may be
promoted.
Among you, Phil KA8ZKR, and Bob N8ADO (?XWARN members?) please contact
XWARN and see if there is any interest.
Chuck
>
> —
> Moe
> 73 de AB8XA
>
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