[RVRC] 2 meter repeater proposed location

[Craig Saums]

Marvin, Alan, Paul and members
I support this proposal assuming our financial situation allows the club to proceed

Thanks - 73
Craig Saums - AC2FE

Sent from my iPad

On Sep 1, 2019, at 9:50 AM, Alan Wolke <alan.wolke at gmail.com> wrote:

Based on Marv’s excellent analysis of the proposed repeater location, I
also agree that this is an excellent way to proceed.

On Saturday, August 31, 2019, Marvin Bronstein via RVRC <
rvrc at mailman.qth.net> wrote:

> Members,
> 
> 
> 
> I have been in consultation with Paul, KC2VRJ, in reference to the
> relocation of our 2 meter repeater to the state run tower.
> 
> 
> 
> The state has given approval for our installation.  We need to make a
> decision within a week or two.
> 
> 
> 
> I discussed the concerns we have expressed and in consideration with the
> cost to locate on this tower.
> 
> 
> 
> The first and foremost concerns have been COVERAGE, ACCESS AND COST.
> 
> 
> 
> To the coverage question; computer modeling plots have been created showing
> the coverage at 25 Watts and at 100 Watts.  Of course, the 100 Watt
> coverage
> is better than the 25 Watt coverage. However, the plotted coverage at 25
> Watts shows a very desired
> 
> Level even at 25 Watts. (Mainly due to the location and height).
> 
> 
> 
> We are allowed to run as much as 130 Watts but we are not allowed to use an
> external power amplifier. So we are limited to the use of a commercial
> level
> repeater (which is our ICOM model) and it's output is up to 50 Watts.
> 
> 
> 
> We, therefore, can run 50 Watts IF IT IS NEEDED. Paul suggested we start at
> 25 Watts (which will provide more reliability of equipment longevity.sans
> failures) and we are allowed to raise the power to it's maximum output
> which
> is 50 Watts IF IT BECOMES NEEDED.
> 
> 
> 
> We have complete access to our equipment for self servicing. We will never
> have any expenses of servicing to antennas, feedlines or combiners...all
> that will be serviced by the operator of the facility. We will be
> responsible to cover the costs of any necessary maintenance to the filters
> that we must purchase and they will install/tune. But we have never had to
> perform service to duplexers once installed and working.
> 
> 
> 
> There are two antennas to this system...one for receive which provides a
> high-gain antenna, large diameter feedline (low loss), and amplified
> multi-coupler to provide sharing with other equipment.
> 
> The second antenna is also a high gain antenna and similar feedline with a
> combiner to facilitate sharing with other transmitters.
> 
> 
> 
> This method of 'sharing' is very popular and is used at many locations
> across the country and even abroad.
> 
> 
> 
> We will be the ONLY 2 METER HAM REPEATER on this system and most likely on
> the tower in total.
> 
> 
> 
> After speaking with Paul and reviewing the situation I feel it is an
> EXCELLENT opportunity that we should jump on.
> 
> 
> 
> If we feel the need to raise the power from 25 Watts to provide some
> specific area coverage, we can go to the limit of this repeater, 50 Watts.
> (+3 DB) But the coverage provided by 25 Watts looks very good with even
> handheld radios. While the coverage mapping
> 
> Did not show coverage using a 25 Watt mobile, it will be very solid going
> from 5 Watts handheld to up over 7 DB with 25 Watts mobile.
> 
> 
> 
> I suggest we accept this and hurry before bad weather makes it difficult to
> do the equipment installation.
> 
> 
> 
> 73
> 
> Marv
> 
> K2vhw
> 
> 
> 
> 
> 
> ---
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-- 
-------------------------------------
Alan Wolke - W2AEW
http://www.youtube.com/w2aew
ARRL Life Member - Technical Coordinator for NNJ Section
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