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Old Oct 24, 2009, 07:24 AM
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Quote:
Originally Posted by downeym
he means a setup like this... for example

2 antennas (this is 2 patches, but it could be any type of antennas), placed 3.5 wavelengths apart, both at different heights above the ground.
That reminds me of the Chairman of the Boards song with the line "Patches I'm depending on you son" line in it.

Is the smaller patch tuned to the same mhz or?
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Old Oct 24, 2009, 07:32 AM
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The antennas in post #108 appear to be 900mhz(large) and 2.4gig(small).
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Old Oct 24, 2009, 08:23 AM
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Quote:
Originally Posted by Tarro
The antennas in post #108 appear to be 900mhz(large) and 2.4gig(small).
no.. its a 14dbi and 8dbi patch... both 2.4Ghz...
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Old Oct 24, 2009, 09:05 AM
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14dbi 2.4gig patch, very cool I never saw one of those I have to get one. Where did you get it?
Never mind I see L-Comm has them.
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Old Oct 24, 2009, 09:58 AM
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lol Tarro am i on your ignore list?

in a way you are responding lol

nice to see you are learning about patches etc.
this hobby is fun for sure.

I will post a really cool modification someone else did for me re antennas
and 2.4

unfortunatley my buddies who have some crazy HAM equipment have shown me 2.4 is just a mess around where I fly
basically everywhere lol

Once you have gone 1.2 with your GS and plane
it is hard to switch to 2.4 just because of gps


I would rather fly up a river or somewhere that I cannot get lost hehehe
Quote:
Originally Posted by Tarro
I hear you Quicksilver he is on my ignore list so I don't have to see what he posted. Don't worry, I will never respond to him again.
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Old Oct 24, 2009, 06:34 PM
Did you get it on video?
Flying-Monkey's Avatar
USA, FL, Miramar Beach
Joined Nov 2005
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Guys, I must say I value the information posted here.

I am trying to learn what I need to get myself a affordable usable FPV system.

I find it unfortunate that in every forum, there's one or two people who just have to try to derail the conversation.

I have found it is just best to ignore them publicly and report them.

Otherwise they will take a valuable resource like this thread, and muddy it until it is worthless.

Please continue with the informative posts, I am learning a little more each day.
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Old Oct 26, 2009, 05:41 AM
SILURIA / UK
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Had my camera out last night so thought I'd take a couple of pics of my groundstation. Intending to build a much better one in the winter months as this was a bit of a quick put together last year for another project. Added teh EZ stuff a few months back and it works well. The DUO diversity combi with the tracker is just fantastic. Far greater range, 360 coverage and significantly reduced the interference. Transformed my flying.

EZ DUO diversity with 14dbi patch / 3 dbi omni
EZ Tracker
JXD990 used for watchers screen/backup recorder/music while you fly!. Mainly initial setting up without putting goggles on/off
K2 Digistor HDD recorder on top of unit
One of DUO outputs feeds Fatshark goggles

Power - 4000mah 3s lipo
2 * 5v BEC's internally
1 BEC for EZ Tracker, K2 HDD recorder and JXD990
1 BEC for PAN/TILT servos
DUO - powered from Lipo supply
All individually switcheable to save power drain

Pan/Tilt is the cheaper of the servocity options with GWS125 servo on the pan and a Tower MG on the tilt.

Check out the "Missile" power switch! Fitted after the main switch kept getting knocked on accidentally in the car....
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Old Oct 29, 2009, 12:20 AM
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My plane has a radio modem downlink on 900mhz

Video 2.4ghz is shown on Daylight viewable (1000 nits) flat screen ($1000)

RC is 433 mhz, Thomas System 500mw

Computer has Google earth with current pos... All home built

System includes a tilt compensated digital Compass 20hz at any baud

Eddie Weeks
http://www.aerialimageryla.com/
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Old Oct 29, 2009, 12:32 AM
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I like to keep it simple and compact;



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Old Oct 29, 2009, 11:52 AM
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Shikra

Could you give me a little insight into how you extended the EzTracker's buttons to the outside of your groundstation case. I have a similar gs that I posted earlier in the thread, I mounted my tracker in the case with three little holes to access the buttons but that was a pain so I just velcro it on top of the case. It would be really nice if I could put it inside.

Thanks

Mark
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Old Oct 29, 2009, 02:43 PM
SILURIA / UK
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Quote:
Originally Posted by Blue Collar View Post
Shikra

Could you give me a little insight into how you extended the EzTracker's buttons to the outside of your groundstation case. I have a similar gs that I posted earlier in the thread, I mounted my tracker in the case with three little holes to access the buttons but that was a pain so I just velcro it on top of the case. It would be really nice if I could put it inside.

Thanks

Mark
Hi MArk, quite simple actually. And bear in mind this was a rough knockup until I get chance to do one properly (!) ....

The extensions are simply three nails cut to the right length. The heads of the nails press up against the buttons. Sharp ends cut off and smoothed. I originally had them running through a piece of wood with three holes drilled through for stability, but in the end I just put it up close to the edge of the case and cut them really short. The tracker is held onto the case by a few dabs of hot glue.

Works well. Have about small bit of slack (1 mm of slack) before the buttons are touched.


I'm hoping to have time to build a real decent unit over winter to take a 24dbi patch I have aquired through work. It's 4 times the size and too heavy for this.
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Old Oct 29, 2009, 06:08 PM
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Quote:
Originally Posted by Shikra View Post
I'm hoping to have time to build a real decent unit over winter to take a 24dbi patch I have aquired through work. It's 4 times the size and too heavy for this.

Shakira,

If you want more gain, then a Parabolic Grid antenna is much better than a patch... Patches are great, low to medium gain antennas, but when you need lots of gain, yagis, grids, etc work better and dont have the ground plane problems patch antennas have.

Mike
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Old Oct 29, 2009, 06:42 PM
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Quote:
Originally Posted by JettPilot View Post
Shakira,

If you want more gain, then a Parabolic Grid antenna is much better than a patch... Patches are great, low to medium gain antennas, but when you need lots of gain, yagis, grids, etc work better and dont have the ground plane problems patch antennas have.

Mike
Thanks Mike
Well actually I don't really think I need it yet as I'm quite happy with the range at the moment - but one day I hope I will need it when I'm really pushing the range.

I had this one as a "freebie" from one of our telco suppliers. Called a favour in and its sitting in a garage. I should use it as it was made/tweaked specially for me for an antenna tracking project I was working on for a buddies UAV. And then I found out about FPV...! Hardly touched since.

I did get one of the parabolic styles really cheap from ebay a while back. No idea of the gain though. They do look better too!
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Old Oct 29, 2009, 08:03 PM
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Despite all the "off topic" chatter here and there in this thead, I've been learning alot! Can't wait to make my own nice portable GS this winter. I especially like the idea of using a big, single lipo to power everything.
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Old Oct 29, 2009, 08:35 PM
Did you get it on video?
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Quote:
Originally Posted by philthyy View Post
Despite all the "off topic" chatter here and there in this thead, I've been learning alot! Can't wait to make my own nice portable GS this winter. I especially like the idea of using a big, single lipo to power everything.
I hear you.

Someone should start an FPV podcast.

I had no idea there was so much to learn.

Now there's this tracking antenna or something?

How the heck does that work?
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