I'd be happier living in Christchurch than Palmerston North Pete, QFA & VOZ B737's, JST & ANZ A320's, NZM ATR76's and a couple of times a week an ANZ B777! Oh, and the RNZAF King Airs. That's my lot!
Announcement
Collapse
No announcement yet.
New Zealand Radar
Collapse
X
-
-
Originally posted by Oblivian View PostI told you you would strive for more lol!
LMR400, from the guys in akl? Mine was about $3.90/m from memory.
My first attempt is just as bad, and yeilds very good results. Infact, similar to what I am getting now on the $200 DPD 9dB colinear without it at its final height! My DIY gives good hits out to about 170nm constatly, with 150 to the north/south and sometimes 190 with high alt ones.
It's quite critical how tall the elements are, and how long the loops are in the middle. I did a mixture of 2 forum results to get it together.
Comment
-
Originally posted by 41south View PostI didn't find any LMR400 that cheap yet, HRH Holdings in Akl have it for about $5.50/m so I'd be interested to know your supplier. The antenna in the pic is actually a little better built than it looks in the picture, that top loop looks very distorted.
Not so impressed with my coverage gain with the DPD Over my DIY (similar design as yours) I've gained a bit more up the coast, but still lost most contacts over the tasman waypoints and around the top of the island. The main difference is its stronger signal at those extremities. I was expecting to reach a bit further than 175nm to the west as I do now.
The skippers to wellington are a bit more prominent, but thats about it.
Which goes to show, if done right those little DIYs are actually quite high gain it seems. I won't be departing with it so soon afterall.Posts not to be taken as official support representation - Just a helpful uploader who tinkers
Comment
-
That was version 1 of it too. I made version 2 a lot neater and supposedly more accurate and it didn't work well at all. The loops in this one are 1.5 turns and the measurements are otherwise as per this picture http://www.tech-software.net/1090_ant_02.JPG with loops around 10mm rather than 20mm.
This is the improved design http://www.qsl.net/dl4mea/picadsb/adsb-ant-drawing.gif
And this is the Amos 5 that I'd like to try next http://f5ann.pagesperso-orange.fr/an...nne%20AMOS.jpg
Comment
-
dl4mea (Guenter from ModeSBeast) defined that first one a bit http://modesbeast.com/g7rgq.html and is the one I followed, With the coils exact. But short 1/4 wave radials as he said there (made no difference), But I had already made the element lenghts similar to the earlier one from memory. Was excellent coverage.
It did make a difference changing the top element length though.
http://www.kinetic-avionics.co.uk/fo...88df0&start=24 is a good read about it.
I stocked up on coax offucts from the new house build to do a coaxial colinear, but the minute measurements and soldering put me off. So when I had the opportunity to get in on a DPD order which has brass tubing contained in it I jumped at the chance.Posts not to be taken as official support representation - Just a helpful uploader who tinkers
Comment
-
I'd be happier living in Christchurch than Palmerston North Pete, QFA & VOZ B737's, JST & ANZ A320's, NZM ATR76's and a couple of times a week an ANZ B777! Oh, and the RNZAF King Airs. That's my lot!
Comment
-
In the Sharers box in Aircraft View in PP most of the letters are coloured cyan(in my scheme), but Dk,DB, and Lj, and now Ui, are white; is there any significance to this other than they are not in my list as 'local sharers'.
I have tried to decipher the PP maps of sharers in various countries, NZ is just an afterthought and quite useless. Perhaps we should ask for a special Australia/NZ map of GS to be shown separately. Apparently there are a number of different grades of GS.
Comment
-
Originally posted by Petenz View PostIn the Sharers box in Aircraft View in PP most of the letters are coloured cyan(in my scheme), but Dk,DB, and Lj, and now Ui, are white; is there any significance to this other than they are not in my list as 'local sharers'.
I have tried to decipher the PP maps of sharers in various countries, NZ is just an afterthought and quite useless. Perhaps we should ask for a special Australia/NZ map of GS to be shown separately. Apparently there are a number of different grades of GS.
I did just that in the planeplotter group. Asked for a map showing AU/NZ larger and not just the east coast of aussie and us overlapping like crazy.
But yes, there is Sharer, Ground Station, Master User with MLAT enabled and AutoMlat
Meaning is actually at the top of the maps showing the uploader positions
Current Active PlanePlotter Ground Stations without Auto Mlats (cyan), Ground Stations with Auto Mlats (green), Sector Master Users (white), other uploading sharers (yellow) and other sharers (magenta)
http://planeplotter.pbworks.com/w/pa...roundStationGS explains the differencesPosts not to be taken as official support representation - Just a helpful uploader who tinkers
Comment
Comment