Aircraft Antenna Mod

sprtbkrydr · Jul 8, 2017

beanbubba said:
MotorBikeSportMouthRider seems appropriate

WHAT??.......Don't worry I got think skin.

beanbubba · Jul 8, 2017

sprtbkrydr said:
WHAT??.......Don't worry I got think skin.

Maklak said it, not me!!

sprtbkrydr · Jul 8, 2017

beanbubba said:
Maklak said it, not me!!

I know that ole frowning clown!

sprtbkrydr · Jul 8, 2017

You guys all need to get on Ham radio so we could all talk together. That's another not so cheap hobby of mine.

sprtbkrydr · Jul 8, 2017

To be continued.........

MacIak · Jul 9, 2017

beanbubba said:
Maklak said it, not me!!

Haha..i just said motormouth you#@**. You made up the rest!
Man, you re turning out to be the modding wonderchild. Amazing work.
So what ya gonna do with 4 (4!!!!!?!) connectors??

sprtbkrydr · Jul 9, 2017

Good morning Maclak. I was wondering the same thing about the 4 connectors. I bet we'll see though.

beanbubba · Jul 9, 2017

MacIak said:
Haha..i just said motormouth you#@**. You made up the rest!
Man, you re turning out to be the modding wonderchild. Amazing work.
So what ya gonna do with 4 (4!!!!!?!) connectors??

Sorry, I thought I explained. One pair will be hard wired to the factory antennas from the front legs. The other pair will be hard wired to the RC radio board. Then I can either amp up the factory antennas or use externals depending on my mood

GooniesNeverDie · Jul 9, 2017

beanbubba said:
Sorry, I thought I explained. One pair will be hard wired to the factory antennas from the front legs. The other pair will be hard wired to the RC radio board. Then I can either amp up the factory antennas or use externals depending on my mood

FrankenMavic!

Also, would like to see it all pieced together! Also a flight video!

GooniesNeverDie · Jul 9, 2017

sprtbkrydr said:
You guys all need to get on Ham radio so we could all talk together. That's another not so cheap hobby of mine.

So I've suggested this a few times with no luck. But many Ham radio guys are on an App called ZELLO in the App Store for both iOS and android.

You set a channel up and everyone can speak freely on the internet.

I used to use a killer app called iPTT, for Jailbreaking chat. But it's now out of business.

sprtbkrydr · Jul 9, 2017

GooniesNeverDie said:
So I've suggested this a few times with no luck. But many Ham radio guys are on an App called ZELLO in the App Store for both iOS and android.

You set a channel up and everyone can speak freely on the internet.

I used to use a killer app called iPTT, for Jailbreaking chat. But it's now out of business.

Each to their own but I'm just not a fan of Ham Radio over the internet for some reason. I like the gear too much I guess.

beanbubba · Jul 11, 2017

Getting closer... the rest of my parts arrive later this week.

MacIak · Jul 11, 2017

beanbubba said:
Getting closer... the rest of my parts arrive later this week.

View attachment 16983

You mad scientist! Why you go and boost both ( for the sake of science,ok) you just need boost the bird tx and the remote tx!!

beanbubba · Jul 11, 2017

MacIak said:
You mad scientist! Why you go and boost both ( for the sake of science,ok) you just need boost the bird tx and the remote tx!!

Go big or go home!!

MacIak · Jul 11, 2017

beanbubba said:
Go big or go home!!

Oh yeah...forgot..USA!! Big for the sake of big. Not complaining though. I always have a weakness for contraptions, abominations and freaks

Just watch the skies when you fly this one..might get visit from the Vulcans.

KyleMaxxUAV · Jul 12, 2017

Lol sub'd

beanbubba · Jul 12, 2017

I was able to make a safe assumption that the Mavic aircraft does use dynamic RF transmit. And it appears to be directly related to the proximity of the remote controller to the aircraft (as expected).

I direct connected my spectrum analyzer to the radio board on the Mavic and measured a constant 8.5dB (7mW) with the remote controller sitting right next to the aircraft:

I moved the remote controller inside my microwave oven across the room and the power increased to a constant 12.5dB (18mW):

I then powered off the remote controller and the aircraft appears to go into a constant full power 20dB (100mW) beacon mode on a narrow channel not broadcasting the video stream anymore (makes sense):

I have started testing the same concept on the remote controller, but the remote TX uses frequency hopping that that is a little more difficult but I will see what I can come up with.