[aprssig] ISS digi

Stephen Black kb1chu at aol.com
Thu Aug 13 22:30:28 CDT 2015


I run a AIS receiver here and have recently received stations up to 447 
KM from my location on the Ma. coast. The AIS receiver is set for around 
162MHz. Tropo ducting is common around this area this time of year. 
Steve KB1CHU

On 8/13/2015 11:07 PM, Paul Bramscher via aprssig wrote:
> I hope they turn it back on soon -- I'm well away from my usual QTH, 
> but have packed the Kenwood TH-D72 and Arrow II antenna.  I got an 
> excellent visual pass this evening, but hope they turn the radio back 
> on in the next 24 hours or so, or I'll miss my chance.
>
> From the top of Cadillac Mountain, Mt. Desert Island, Maine, I worked 
> some Canadian stations on APRS:
>
> 2015-08-13 16:38:59 EDT: *KD0KZE-7 
> <http://aprs.fi/?c=raw&limit=&call=KD0KZE-7>*>TTRQ1S,VA1COR* 
> <http://aprs.fi/?c=raw&limit=&call=VA1COR>,WIDE1,WIDE2-1,qAR,VE1GX-1 
> <http://aprs.fi/?c=raw&limit=&call=VE1GX-1>:``)Fl _[/>TH-D72 Mt Desert Island=
> 2015-08-13 16:44:16 EDT: *KD0KZE-7 
> <http://aprs.fi/?c=raw&limit=&call=KD0KZE-7>*>TTRQ1S,VE1VZ* 
> <http://aprs.fi/?c=raw&limit=&call=VE1VZ>,WIDE1*,WIDE2-1,qAR,VE1WN 
> <http://aprs.fi/?c=raw&limit=&call=VE1WN>:``)Gl e[/>TH-D72 Mt Desert Island=
>
> I'm a bit baffled -- did I actually work VE1VZ directly? According to 
> aprs.fi, that's 147.9 miles.  But when I look at line-of-sight 
> formulas based around height and earth's curvature 
> (https://en.wikipedia.org/wiki/Line-of-sight_propagation), I work out 
> something like distance in miles = 1.41 x square root (of 1500 feet), 
> or around 54 miles.  How'd I work a station 147 miles away across the 
> Bay of Fundy on 2m?
>
> 73, KD0KZE / Paul
>
>
> ------------------------------------------------------------------------
> *From: *"Nagi Punyamurthula via aprssig" <aprssig at tapr.org>
> *To: *"John" <k4ag at bellsouth.net>, "TAPR APRS Mailing List" 
> <aprssig at tapr.org>
> *Sent: *Thursday, August 13, 2015 5:40:54 PM
> *Subject: *Re: [aprssig] ISS digi
>
> It has been inactive for the last 4 days, 14hr. no prior notice that I 
> know of. Just the hams posted inactive reports on fans of iss web site
>
>
>
>
> -----Original Message-----
> From: aprssig [mailto:aprssig-bounces at tapr.org] On Behalf Of John via 
> aprssig
> Sent: Thursday, August 13, 2015 9:38 AM
> To: TAPR APRS Mailing List <aprssig at tapr.org>
> Subject: [aprssig] ISS digi
>
> Hi,
>
> It appears that the digi on the ISS has been off the air for several 
> days, did I miss an announcement about this?
> Anyone have any info on this?
>
> 73,
> John
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