[OZAPRS] Proposed digi for Mt Nardi

Wed Aug 11 12:20:04 EST 2010

G'day Ray - all looking good, one final question should the SSID be VK2RPL-1
or -3?

I'm leaning towards -1, but am happy to be corrected before it is written in
and sent on it's way;-)

Steve VK2POO

On 10 August 2010 13:59, Ray Wells <vk2tv at exemail.com.au> wrote:

> Steve,
>
> 83m is 272 ft, close enough to the 300 I guessed.
>
> 800m is a tad higher than what SPLAT! (and Google earth) thinks it is but
> still close enough, especially given the step sizes available for HAAT and
> Power.
>
> HAAT - Height Above Average Terrain
>
> Pick 0dB gain and the nearest height and you won't be too far off. It's
> only a guide.
>
> Ray vk2tv
>
>
> On 10/08/10 09:27, Steve Sharp wrote:
>
> The tech got back to me with the following:
>
> "Antenna Gain is going to be 3db to start with but then unity when we get
> around to putting the 2m repeater up there ,  HAAT not
> sure what it means but antenna hight is 83m above ground or 883m above sea
> level"
>
> Sound about right?
>
> Steve VK2POO
>
> On 10 August 2010 07:48, Ray Wells <vk2tv at exemail.com.au> wrote:
>
>> Hi Steve,
>>
>> From SPLAT!, the pgrogram that produced the plots, HAAT is 2073.38 ft. I
>> 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.
>>
>>
>> Typical antennas gains are
>> 1. dipole - probably 1dB in some direction, depending on distance from
>> support mast
>> 2. 2 x dipole - 3dB
>> 3. 4 x dipole - 6dB
>> 4. double extended Zepp (each dipole half = 5/8) 3dB
>> 5. 3 halfwaves in phase = 3dB
>>
>> An error of 1-2dB in your "guess" will be mostly insignificant on the
>> radius of the resulting coverage circle.
>>
>> Cheers ... Ray
>>
>>
>>         --==[ SPLAT! v1.2.1 Site Analysis Report For: Nardi ]==--
>>
>>
>> ---------------------------------------------------------------------------
>>
>> Site location: 28.5447 South / 206.7138 West (-28� 32' 40" S / 206� 42'
>> 49" W)
>> Ground elevation: 2608.27 feet AMSL
>> Antenna height: 300.00 feet AGL / 2908.27 feet AMSL
>> Antenna height above average terrain: 2073.38 feet
>>
>> Average terrain at   0 degrees azimuth: 689.75 feet AMSL
>> Average terrain at  45 degrees azimuth: 756.54 feet AMSL
>> Average terrain at  90 degrees azimuth: 1060.91 feet AMSL
>> Average terrain at 135 degrees azimuth: 1151.16 feet AMSL
>> Average terrain at 180 degrees azimuth: 686.42 feet AMSL
>> Average terrain at 225 degrees azimuth: 585.24 feet AMSL
>> Average terrain at 270 degrees azimuth: 919.58 feet AMSL
>> Average terrain at 315 degrees azimuth: 829.48 feet AMSL
>>
>>
>> ---------------------------------------------------------------------------
>>
>>
>>
>>
>>  On 09/08/10 18:28, Steve Sharp wrote:
>>
>> 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.
>>  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.
>>
>> Hopefully this'll kick interest along and we'll get some others up in the
>> months to follow.....
>>
>> 73 de Steve VK2POO
>> On 23 July 2010 13:36, Ray Wells <vk2tv at exemail.com.au> wrote:
>>
>>> Hi Steve,
>>>
>>> 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.
>>>
>>> Beacon1Text            =       !3056.77SS15243.92E#PHG5513/ Kempsey, NSW
>>>
>>> Beacon2Text            =       !3056.77SS15243.92E#PHG5513/ Kempsey, NSW
>>>
>>> Beacon3Text            =       :146.875- *111111z3048.00S/15255.00Er R50k
>>>
>>>
>>> The 5513 says
>>> 5     25W
>>> 5     antenna 320 feet above average terrain
>>> 1    1dB antenna gain
>>> 3    pattern offset towards 135 degrees.
>>>
>>> Take a look here for further explanation
>>>
>>> http://digined.pe1mew.nl/?How_to:Calculate_PHG_information
>>>
>>> The extra S after Latitude causes a green star with the letter S to be
>>> displayed as the digi icon.
>>>
>>> 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.
>>>
>>> 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
>>>
>>> Howzat?
>>>
>>> Ray vk2tv
>>>
>>>
>>> On 23/07/10 12:53, Steve Sharp wrote:
>>>
>>> G'day Ray - Ok, I said I was new, so what is PHG apart from a TLA?
>>>
>>> Steve
>>>
>>> On 23 July 2010 12:45, Ray Wells <vk2tv at exemail.com.au> wrote:
>>>
>>>> Steve,
>>>>
>>>> Wow! Nardi is a great site and will provide good coverage of northern
>>>> vk2.
>>>>
>>>> Just a suggestion, can you include PHG in your beacon for PHG circle
>>>> display?
>>>>
>>>> Well done.
>>>>
>>>> Regards, Ray
>>>>
>>>>
>>>>
>>>> On 23/07/10 12:12, Steve Sharp wrote:
>>>>
>>>>  I'm building up a digi for the Summerland club who are going to place
>>>> it on Mt Nardi. http://tinyurl.com/Mt-Nardi
>>>>
>>>> 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;-)
>>>>
>>>> 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.
>>>>
>>>> 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)
>>>>
>>>> ECHO ON
>>>> TXDELAY 64
>>>> GPS $GPGGA
>>>> TRace OFF
>>>> MONitor ALL
>>>> DIGIpeater ON
>>>> BEACON On EVERY 30
>>>> UNPROTO WIDE1-1 V WIDE2-2
>>>> MYCALL VK2POO-3
>>>> MYALIAS WIDE2-1
>>>> BTEXT !2814.23s/15330.09e#/FoxDigi Testing for SARC
>>>>
>>>> Any tweaks?
>>>>
>>>> 73 Steve VK2POO
>>>>
>>>>
>>>>
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