No subject
Sat Mar 20 08:49:14 EST 2010
guessed an antenna height of 300 ft when I did the plots. Take the =
difference
between 300 and the "real" antenna height and add/subtract =
from 2073
and you'll have your figure. <o:p></o:p></p>
<div>
<p class=3DMsoNormal style=3D'margin-bottom:12.0pt'><br>
<br>
Typical antennas gains are<br>
1. dipole - probably 1dB in some direction, depending on distance from =
support
mast<br>
2. 2 x dipole - 3dB<br>
3. 4 x dipole - 6dB<br>
4. double extended Zepp (each dipole half =3D 5/8) 3dB<br>
5. 3 halfwaves in phase =3D 3dB<br>
<br>
An error of 1-2dB in your "guess" will be mostly insignificant =
on the
radius of the resulting coverage circle.<br>
<br>
Cheers ... Ray <br>
<br>
<br>
--=3D=3D[ SPLAT! v1.2.1 Site =
Analysis
Report For: Nardi ]=3D=3D--<br>
<br>
-------------------------------------------------------------------------=
--<br>
<br>
Site location: 28.5447 South / 206.7138 West (-28<span =
style=3D'font-family:"Tahoma","sans-serif"'>=EF=BF=BD</span>
32' 40" S / 206<span =
style=3D'font-family:"Tahoma","sans-serif"'>=EF=BF=BD</span>
42' 49" W)<br>
Ground elevation: 2608.27 feet AMSL<br>
Antenna height: 300.00 feet AGL / 2908.27 feet AMSL<br>
Antenna height above average terrain: 2073.38 feet<br>
<br>
Average terrain at 0 degrees azimuth: 689.75 feet AMSL<br>
Average terrain at 45 degrees azimuth: 756.54 feet AMSL<br>
Average terrain at 90 degrees azimuth: 1060.91 feet AMSL<br>
Average terrain at 135 degrees azimuth: 1151.16 feet AMSL<br>
Average terrain at 180 degrees azimuth: 686.42 feet AMSL<br>
Average terrain at 225 degrees azimuth: 585.24 feet AMSL<br>
Average terrain at 270 degrees azimuth: 919.58 feet AMSL<br>
Average terrain at 315 degrees azimuth: 829.48 feet AMSL<br>
<br>
-------------------------------------------------------------------------=
--<br>
<br>
<br>
<br>
<o:p></o:p></p>
</div>
<div>
<div>
<p class=3DMsoNormal>On 09/08/10 18:28, Steve Sharp wrote: =
<o:p></o:p></p>
<div>
<p class=3DMsoNormal>G'day Ray - project is on the move again - the =
GM300 has
been repaired and aligned and I have taken a look at the digi_ned link =
you sent
regarding PHG and I'm sure we can add it as soon as the tech tells me =
the HAAT
and gain of the antenna.<o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal>At this stage I have to program up the Foxdigi =
witht he site
info and post it away to the installer who will get it up on Nardi next =
time he
is workign at the site.<o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal>Hopefully this'll kick interest along and we'll get =
some
others up in the months to follow.....<o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal>73 de Steve VK2POO<o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal>On 23 July 2010 13:36, Ray Wells <<a
href=3D"mailto:vk2tv at exemail.com.au" =
target=3D"_blank">vk2tv at exemail.com.au</a>>
wrote:<o:p></o:p></p>
<div>
<p class=3DMsoNormal>Hi Steve,<br>
<br>
PHG is (P)ower, (H)eight, (G)ain and is sent in a beacon as in this =
UIDigi
example from VK2RMC-1. Software that handles PHG will display a coverage =
circle
around the digi site based of the information transmitted by the =
digi.<br>
<br>
Beacon1Text &n=
bsp;
=3D !3056.77SS15243.92E#PHG5513/ =
Kempsey, NSW<br>
<br>
Beacon2Text &n=
bsp;
=3D !3056.77SS15243.92E#PHG5513/ =
Kempsey, NSW<br>
<br>
Beacon3Text &n=
bsp;
=3D :146.875- =
*111111z3048.00S/15255.00Er
R50k<br>
<br>
<br>
The 5513 says<br>
5 25W<br>
5 antenna 320 feet above average terrain<br>
1 1dB antenna gain<br>
3 pattern offset towards 135 degrees.<br>
<br>
Take a look here for further explanation<br>
<br>
<a href=3D"http://digined.pe1mew.nl/?How_to:Calculate_PHG_information"
target=3D"_blank">http://digined.pe1mew.nl/?How_to:Calculate_PHG_informat=
ion</a><br>
<br>
The extra S after Latitude causes a green star with the letter S to be
displayed as the digi icon.<br>
<br>
Beacons 1 and 2 are identical except for the path. Beacon 1 has no path =
set so
it is not transmitted beyond the local digi. Beacons 2 and 3 have a path =
of
WIDE2-2 so that the beacon will be digied over two hops.<br>
<br>
Beacon 3 is reporting the frequency and offset (146.875-), time, =
location and
range of the local voice repeater. The series of 1's indicates that time =
is not
set<br>
<br>
Howzat?<br>
<br>
Ray vk2tv <o:p></o:p></p>
<div>
<div>
<p class=3DMsoNormal><br>
<br>
On 23/07/10 12:53, Steve Sharp wrote: <o:p></o:p></p>
<div>
<p class=3DMsoNormal>G'day Ray - Ok, I said I was new, so what is PHG =
apart from
a TLA?<o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal style=3D'margin-bottom:12.0pt'>Steve<o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal>On 23 July 2010 12:45, Ray Wells <<a
href=3D"mailto:vk2tv at exemail.com.au" =
target=3D"_blank">vk2tv at exemail.com.au</a>>
wrote:<o:p></o:p></p>
<div>
<p class=3DMsoNormal>Steve,<br>
<br>
Wow! Nardi is a great site and will provide good coverage of northern =
vk2.<br>
<br>
Just a suggestion, can you include PHG in your beacon for PHG circle =
display?<br>
<br>
Well done.<br>
<br>
Regards, Ray <o:p></o:p></p>
<div>
<div>
<p class=3DMsoNormal><br>
<br>
<br>
On 23/07/10 12:12, Steve Sharp wrote: <o:p></o:p></p>
</div>
</div>
<blockquote style=3D'margin-top:5.0pt;margin-bottom:5.0pt'>
<div>
<div>
<div>
<p class=3DMsoNormal>I'm building up a digi for the Summerland club who =
are going
to place it on Mt Nardi. <a href=3D"http://tinyurl.com/Mt-Nardi" =
target=3D"_blank">http://tinyurl.com/Mt-Nardi</a><o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal>Now I'm the first to put my hand up and say I'll =
have a go -
but sadly my skill set is a little light so I thought it best to =
get some
feedback from people who have more experience in this field and =
hopefully get
it right the first time;-)<o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal>I'm using a foxdigi and seem to be getting the =
desired
effect and it is repeating (most) of the packets it receives from =
VK4RGC-3.<o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal>I have configured it thus, but not sure that I =
have the
optimum settings yet....(obviously MYCALL and the BTEXT location =
will be
changed for it's installation site)<o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal>ECHO ON<br>
TXDELAY 64<br>
GPS $GPGGA<br>
TRace OFF<br>
MONitor ALL<br>
DIGIpeater ON<br>
BEACON On EVERY 30<br>
UNPROTO WIDE1-1 V WIDE2-2<br>
MYCALL VK2POO-3<br>
MYALIAS WIDE2-1<br>
BTEXT !2814.23s/15330.09e#/FoxDigi Testing for SARC<o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal>Any tweaks?<o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=3DMsoNormal>73 Steve VK2POO<br>
<o:p></o:p></p>
</div>
</div>
</div>
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