Ground Station Power Consuming.

[MoRaLeSD]

Hello, need some info about this subject. Will be my first ground station and I need to know what batteries I should have to operate it.

2x RX Racewood 1.3GHz (http://www.dronesvision.com/racewood-1-3ghz-wireless-av-receiver-vrx-for-fpv-wireless-cctv-cameras-blue-label/)
EzAntenna Tracker
Pan/Tilt (http://www.readymaderc.com/store/index.php?main_page=product_info&cPath=11_27&products_id=95) for Antenna, Servo: BMS-661DMG+HS Super Fast Digital Servo (MG) (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=9442)
Video Amplifier (http://www.ebay.com/itm/130642794146?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649)

For Powering all these How many mAh battery I should have? For the EzTracker I must have a BEC and all the others are working with 3s. Do I need to power them from a StepUp to be precise at 12 Volts?

[h0tr0d]

They should work fine on 3S along with the BEC for the tracker. Why not just measure the current when you have it all together and the tracker is working, then you can choose a battery size according to your needs?

Most people here run a larger 3S battery to power theirs....~4000mAh to 6000mAh seems common for a larger setup.

I have the option to plug a car battery into mine and run it several weeks straight, but I usually just have a 4000mAh battery running it. I don't have a tracker though.

[Flying Monkey]

I started off with a 4000mah 3s to be safe but now I just use a 1000mah 3s and it'll run for over an hour. But I'm just powering the vRx, video amplifier, and fatshark goggles. It's all just trial and error... be sure to put a $4 battery alarm on it so you never run flat and do a bench test with a stopwatch to see how long it'll last with given battery, and how long it lasts between the bat alarm's first squeel to when the video actually cuts out.

[MoRaLeSD]

Thank you both for answering! I will probably take a big battery maybe 5000mAh to be sure and test it. If it's not enough I will take a biger one in the future. About the StepUp, is no need to use it right? They work fine with a 3s? Except the Tracker...

[MoRaLeSD]

I forgot to mention that I will drain Power from this battery for my HeadPlay Goggles too!

[Flying Monkey]

I'm not sure about HeadPlay but I've been surprised at how little power the fatsharks use. I've never used a stepup for it. I'm not sure about the tracker but the rest of the gear is good to go on a 3 cell directly.

btw... if you haven't already ordered that amplifier, here's a cheaper one... http://www.onvon.com/video-splitter-amplifier-booster-input-video-output-p-592.html
I wouldn't of trusted it except that Trappy from Team Blacksheep recommended it... so far it works great for me and for $2 forget-about-it!! Caution, the shipping will be like $6... I was going to order 2 of them since they're cheap but it doubled the shipping cost so clearly that's where they make their profit! It comes with + and - wires pretinned for you to solder into your battery harness.

[MoRaLeSD]

Unfortunately i have orders the the other one, but I see why not take this one too? Low price and good like you said? i can test the other one too and post some comments when I get it!

Haha Shipping to Greece Lowest price 28 USD...