[aprssig] Water ingress

Lynn W. Deffenbaugh (Mr) ldeffenb at homeside.to
Fri Mar 29 19:57:41 CDT 2013


Or, in keeping with APRS, it's possible that the yellow represents his 
normal "coverage area" or stations received while the green is only 
those received within the past 24 hours, a much smaller coverage area.  
If he had water had ingressed into his "feeder" or antenna coax, then 
that would present an attenuation to received signals and a subsequent 
shrinkage of reception area.

Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32

On 3/29/2013 8:46 PM, aprssig at k7ftp.net wrote:
> Well, let's try some reading for comprehension, shall we?  There was a time
> they taught that in schools.
>
> The topic is Water Ingress - water entering an area.
> He mentions a feeder - possibly a stream feeding into another body of water,
> or perhaps an animal feeder.  We don't know yet.
> However, we have a lat and long from the image at the URL... -27.425345 and
> 153.901236 with an elevation of 0m (sounds like sea level)
>
> So, we look it up on a bigger map,   and it's somewhere in the vicinity of
> Brisbane, Moreton Bay it seems.  We know that much, so the likelihood is
> high that it refers to water coming in - from a tide or from a river feeding
> that area?  We could certainly use some more clarification, but we can
> figure out that much from the e-mail - with a little effort.
>
> -----Original Message-----
> From: aprssig-bounces at tapr.org [mailto:aprssig-bounces at tapr.org] On Behalf
> Of Stephen H. Smith
> Sent: Friday, March 29, 2013 6:24 PM
> To: Andrew Rich; TAPR APRS Mailing List
> Subject: Re: [aprssig] Water ingress
>
> On 3/29/2013 8:11 PM, Andrew Rich wrote:
>> I think I have water in my feeder again
>> http://tech-software.net/adsb_cover_area.png
>> Yellow - total
>> Green - 24 hours
>> - Andrew -
>>
> Given that you have provided absolutely NO information about what we are
> looking at, where it is or how it is being measured,
>
> WHAT ARE WE SUPPOSED TO THINK ABOUT THIS? ?????
>
>
>
> ____________________________________________
>
>
> --
>
> Stephen H. Smith    wa8lmf (at) aol.com
> Skype:        WA8LMF
> Home Page:          http://wa8lmf.net
>
>
>    Long-Range APRS on 30 Meters HF
>       http://wa8lmf.net/aprs/HF_APRS_Notes.htm
>
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>      http://wa8lmf.net/ham/imic.htm
>      http://wa8lmf.net/ham/uca202.htm
>
> "APRS 101"  Explanation of APRS Path Selection & Digipeating
>     http://wa8lmf.net/DigiPaths
>
>
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