FPV Antenna ?
- Thread starter Phil550
- Start date
DucktileMedia
Drone Enthusiast
Just to make sure, because this was my problem, are you using a monitor? Make absolutely sure that your monitor shows static! I was using a lilliput and couldnt imagine the signal became weak enough over 10' to turn the monitor blue. But that was exactly what happened. I switched to a cheapo chinese monitor that showed all static and voila! everything worked and went farther than I could imagine.
I am using a cheap(ish) Chinese 7" monitor, but I've never seen any static. It seems to power off after anything between 15 and 60 secs - if you push the power button immediately the picture comes back. This doesn't seem to apply if I set everything up indoors, with about 6ft between the TX and TX antennas.
I'll post some photos of the setup tomorrow.
I'll post some photos of the setup tomorrow.
Tomstoy2
Member
Excellent point, IrisAerial!
Phil, this really sounds like he describes!
I use a Hailer monitor myself, ( mostly with goggles, though ), and is shows static just fine. Even using a 3 wire cloverleaf on the reciever as well as the tx I'm able to have glitch free up to 1/3rd mile out. Haven't found the limit yet with a skewer on the receiver.
Phil, this really sounds like he describes!
I use a Hailer monitor myself, ( mostly with goggles, though ), and is shows static just fine. Even using a 3 wire cloverleaf on the reciever as well as the tx I'm able to have glitch free up to 1/3rd mile out. Haven't found the limit yet with a skewer on the receiver.
friends at dronevision.com suggest 3s batt. A friend of mine use 3s 500mah on his 5.8 500mw tx...he gets ~50 minutes of supply
Photos of my 550 set up - does it look ok?
View attachment 6913View attachment 6914
This is the monitor I'm using:
http://www.fast-lad.co.uk/store/inch_800x400_high_quality_monitor_32081820-p-19647.html
If the problem with losing the signal is down to the monitor (no static...), any suggestions for a replacement that is available or can be shipped to the UK?
View attachment 6913View attachment 6914
This is the monitor I'm using:
http://www.fast-lad.co.uk/store/inch_800x400_high_quality_monitor_32081820-p-19647.html
If the problem with losing the signal is down to the monitor (no static...), any suggestions for a replacement that is available or can be shipped to the UK?
Attachments
Tomstoy2
Member
I do have a concern about the antenna tubing. Looks really close to the prop. If it can flex and bend into the path then That isn't good.
Noticing that you do have a rigid landing gear. Placing the tx on it and dropping the antenna down would be desirable, really.
Other than that, it looks pretty good!
Noticing that you do have a rigid landing gear. Placing the tx on it and dropping the antenna down would be desirable, really.
Other than that, it looks pretty good!
Attachments
Last edited by a moderator:
Thanks Tomstoy2 - I hadn't thought of that....
The lipo is mounted on top of a plate near the top of the landing gear so I can put the tx and antenna underneath it.
I apologise if this is a stupid question but if the tx antenna is upside down, does the rx antenna have to be the same or do they just have to be in the same plane i.e. horizontal?
The lipo is mounted on top of a plate near the top of the landing gear so I can put the tx and antenna underneath it.
I apologise if this is a stupid question but if the tx antenna is upside down, does the rx antenna have to be the same or do they just have to be in the same plane i.e. horizontal?
guy1a
Member
The antennas should be in the same plane.
No matter for the top or bottom location.
Polarisation is important.
Sent from my GT-I9100 using Tapatalk 2
kloner
Aerial DP
linear are horizontal or vertical. can be one up, one down,,,,, both up, both down
circular have a null out the top and bottom,,,,,,,,,, as long as it's not pointed ant the rx or vice versa your fine,,,, thats like bluebeam to bluebeam. they can be pointed any old way though, no matters as long as not at each other. it's a pretty small area, is hardly noticeable, it'll just flash as it goes through it
circular have a null out the top and bottom,,,,,,,,,, as long as it's not pointed ant the rx or vice versa your fine,,,, thats like bluebeam to bluebeam. they can be pointed any old way though, no matters as long as not at each other. it's a pretty small area, is hardly noticeable, it'll just flash as it goes through it