[NLRS] Any APRS experts in NLRS land ?

[Clare Jarvis]

On Thursday 09 August 2007 02:02 pm, Stephen Hicks, N5AC wrote:
First,   I am in favor of beaconing but I am opposed to APRS messaging.
That way many of us can at least located the rover.   I am in a deep valley.
Rovers drive by and I don't work them because I do not hear the chatter that 
lets me know where they are and how they are active.   With APRS beaconing I 
can at least know there last location.

In Minnesota in my driving to various customers I find that I am on the 
"radar" about 60% of the time, but having said that I seldom drive more that 
20 miles without some sort of coverage.    Look at the aprsworld.net site.

Equipment is Kenwood D700 with quarter wave running 20W @ 144.390 MHz.

Fixed stations would be better off not using APRs but instead using the 
seaches at aprsworld.net or findu.com.

de K0ny

Clare






> See below....
>
> Steve, N5AC
>
> -----Original Message-----
> From: nlrs-bounces at mailman.qth.net [mailto:nlrs-bounces at mailman.qth.net] On
> Behalf Of w0zq at aol.com
> Sent: Thursday, August 09, 2007 11:06
> To: nlrs at mailman.qth.net
> Subject: [NLRS] Any APRS experts in NLRS land ?
>
>
>
> OK guys. As you may be aware, the rover rules are once again being
> discussed by the VUAC. One aspect (of many) is the use of APRS (not HamIM
> which is already allowed).
>
> Here are my question to those who are knowledgeable in APRS. Most of you
> know what our rover range and rover conditions are like here in the Upper
> Midwest.
>
> Question # 1. What kind of station would a rover need to have to
> support APRS in his/her rover ?   Power, equippment, and antenna ?
> Generally, ARPS is run off of sub-standard equipment ... An old VHF radio
> with 10W or so of FM and a quarter-wave antenna.  Personally I run a
> 5/8-wave vertical and a 40W transmitter and a "Tiny Tracker" with a GPS.
>
> Question # 2. From EN22 to EN37, from EN04 to EN55 (etc), what kind of
> coverage can we expect ? 100%, 80%, 50 % ? Just a rough idea would be
> helpful.
> Can answer this sice I'm a 5-lander, but I would encourage you to look at
> the maps on findu.com for some folks in your area that run it and see how
> they have been received.
>
> Question # 3. What equipment does a fixed station need to have to use the
> rover's APRS info ?
> No equipment is required if the signal is received off of the Internet. 
> You go to the website (http://map.findu.com/n5ac*) for example and look at
> the location on the map.  If you receive it directly, then you need a
> similar receive only setup on the fixed station side: 2m FM radio, vertical
> antenna and a TNC (not just a tiny tracker).
>
> The network of receiving stations (called I-Gates) all ship their received
> calls/locations to the Internet where they are stored in a database and
> then can be seen online.  The coverage is phenomenal in my experience, but
> if ARPS with Internet viewing is not allowed, none of this can be used. 
> Then you are back to a roughly 75-mile circle around a fixed station.
>
>
> Any other insight and comments are welcome.
>
> 73, Jon
> W0ZQ
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-- 
Mr. Clare Jarvis
Jarvis Computer Software
PO Box 1264
Winona MN 55987-7264

(507) 454 2575

Reply to: jarvis at jarviscomputer.com