[aprssig] APRS + Local Lan Question

Mark Cheavens mcheavens at usa.net
Thu May 5 11:17:27 CDT 2016


If they are more than 600khz apart (as they are) you can use a duplexor 
and do it all on one antenna and feedline!

20 feet apart and dedending upon the radios as to the receiver front 
ends will determine how much desense you will have.

Mark
KC5EVE
On 5/5/2016 11:00 AM, Charles Blackburn via aprssig wrote:
> Hi guys.
>
> 2 questions.....
>
> I'm responsible for a node in the local packet network here in Daytona.
>
> Our main "network" is on 145.050, we have uhf backbones to deland and st
> Augustine.
>
> 1. We have a spare VHF antenna and I was wondering how much interference
> running aprs on 144.390 would be considering the antennae are only about 20
> feet apart.
>
> Here's a bit.ly link to a photo I took this morning. The location is in
> Ormond beach on the 18th floor of a condo building.
>
> http://bit.ly/1NkR1FF
>
> My other question is regarding hops... now with it being REALLY high up and
> there is a LARGE digipeater network in Orlando, I'm assume that it would be
> beneficial to just use a path of WIDE1-1 so that it only digipeats once ?
>
> Right now, I'll be igating from home until I can figure out a way to get
> internet up there, my concern is I know that the site can cover pretty much
> all of Volusia county and parts of flagler county, but I don't want to cause
> QRM to the guys out west as the Orlando system has decent/wide coverage.
> Right now the power output on the 050 lan I believe is 25watts I'm only
> thinking of maybe 10 watts for aprs
>
> Thoughts, comments.
>
> Charlie
>
> _______________________________________________
> aprssig mailing list
> aprssig at tapr.org
> http://www.tapr.org/mailman/listinfo/aprssig




More information about the aprssig mailing list