|May 15, 2012, 02:09 PM|
Dual Frequency Ground Station Build (dual LCDs, dual Fatsharks, dual diversity)
So a couple days ago I started building my dual frequency ground station.
The plan is to have 2 TV screens both on diversity controllers; one for 1.3ghz and one for 5.8ghz. Then have two sets of goggles with one set on 1.3ghz and one set that is switchable.
AND fit it all in the lid of a pelican 1510 case
Pelican 1510 Case
2x Haier 7" LCD Screens
2x Eagle Tree Eagle Eyes Diversity Controllers
2x Lawmate 1.2ghz vRx
2x Foxtech 5.8ghz vRx
5x Military rocker Switches
1x Voltmeter (ebay)
2x 7" sun shades
4 Channel Video Switch
A whole bunch of wires, solder and heatshrink!
The rest of the case will be used to store 2x DX8s and all my lipo batteries
|May 15, 2012, 02:28 PM|
yeah thats not a silly question....
I fly multirotors and I want to finally use my 3 axis gimbal with a camera man..... and I want to fly FPV.
So need dual frequencies to transmit 2 separate video signals for the pilot and camera operator.
Also I will have the ability to use either frequency if i am getting interference on one.
I have found 1.3ghz to be best for FPV fight since it can go through trees and hills and I fly on 2.4ghz (i had a UHF system but on a multirotor its overkill)
|May 15, 2012, 03:32 PM|
today I hope to wire up a CC BEC set at 9v and wire up the TV screens.
the TV screens have their own LiPo batteries but i dont want to use the power switch....
I would rather the TV screens shut off and on when i toggle the switch on the pannel.
So I will be removing the LiPo batteries out of the TV screen and powering them off the main battery pack via the Castle BEC.
The TVs take 9v input so ill just set the BEC to 9v with the castle link and be done with it.
|May 15, 2012, 08:25 PM|
Amazon prime 2 day free shipping FTW
New 4 channel video switch
It takes a 12v input to change the video channel.
I will wire up a set of switched for 2 channels.
This is meant for indash auto installation for backup camera as such.
Perfect for my ground station
|May 15, 2012, 10:49 PM|
And the video switch installed
It uses 12v to trigger which video channel
So when 1.3ghz gear is on it is then on 1.3ghz channel
But when 5.8ghz gear is on then it is on 5.8ghz
I have a splitter and I am not sure if I should have the 2nd TV on the switch or just on 5.8ghz
I can always change it later
|May 15, 2012, 11:21 PM|
Im probably going to sound really stupid but I have to ask...
Say I wanted a camera operator and a fpv view for me... I need 2 x vtx' s
So say I used 2 x immersion 600 mw 5.8 tx's and I put one at one end of the spectrum ( I think it's like 5730 ) and the other at the other end ( I think its like 5890) .......
So is this a recipe for disaster and crazy interference ? I assume it is but I thought I'd ask here before buying multiple units for 100 bucks over the retail price of the dudes who have grabbed the whole worlds supply I the classifieds!
If so then as I will be using 2.4 for rc control is 1.3 then next best bet for the second video channel ?
|May 15, 2012, 11:22 PM|
Nice setup too. Reason I'm asking in your thread is that I'm planning the same thing as you. I suspect I'll be needing 1.3ghz also then ...?
|May 16, 2012, 12:12 AM|
I have pondered this set up also... I had figured best to use two RC systems. With one RC you could give your cameraman pan tilt of that cam. But you might have to sacrifice pan tilt on your pilot cam. I use allot of channels...channel junkie I guess, but seams even with 10 Im wishing I had more sometimes. Where as with two RC's you're not as stressed for channels on the pilot RC system, and the camera man can pan tilt yaw zoom focus and make eggs to order for breakfast....theoretically of course.
|May 16, 2012, 12:35 AM|
Romania, Dolj, Craiova
Joined Sep 2007
The only good find in this thread is the LCD shade, thank you.
The rest is waste of time and resources, can be done incorporating Rx modules in goggles, using two separate channels in 5.8G band.
|May 16, 2012, 12:37 AM|
when using 1.3ghz with 2.4ghz (what I am doing) you need to make sure you put a LPF (low pass filter) on the 1.3ghz so it doesn't mess up the 2.4ghz ..... (some double harmonic nonsense)
hmm..... i am thinking this ground station needs the name "Dually"
you failed to even think about my situation.
I bought my 5.8ghz gear first..... since "everyone" recommends it.... but in my area it was not all the reliable (not enough for me to pilot with)
So I moved on to 1.3ghz and it is much better. 5.8ghz doesnt even go though trees......
So rather than selling my 5.8ghz gear and take a loss on it and then buy more 1.3ghz gear........... and spend more "resources" (thus wasting resources) I decided to use the 5.8ghz for 2nd person.... either a "passenger" or a "camera operator"
Again i respect your opinion, but calling what I am doing " a waste of time and resources" isnt A) very nice (who are you timecop) or B) even accurate.
You are probably correct that this could be done differently..... but guess what.... I am doing it how I want... and its my time and money to spend.
So please, if you would like to add helpful criticism.... then great.
Otherwise, please refraining from posting in my thread. I am here to have fun and so I and others can learn. Why are you here?
|May 16, 2012, 01:42 AM|
Still need to power 2nd TV off the main battery
Drill holes and pass the SMA connectors through.
Neaten up the wires and put liquid electrical tape over all solder joints.
|May 16, 2012, 11:29 AM|
couple things.... 1 space.... i wanted 2 screens for both cameras so that spectators can view both
Honestly I could get away with no TV screens as I fly via goggles when flying FPV.
The TVs are a backup to my goggles and for others to watch.
Plus I owned one of them from when i first got into FPV.
If I was flying via the TV screen I agree, a large screen would be nice.
|May 16, 2012, 01:25 PM|
ordered some bulk head power plugs for the fatsharks to plug into
An inline Fuse
a Water proof LED light so that I can see in the dark.
and some right angle RCA connectors
To power the TC screens
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