Crazy Goats
Active member
Hi, I know theres some smart folks around here so I think ill add my cry for help and see what happens.
I used to fly 1.2ghz FPV with a standard dx6i a few years back but got out of FPV for a while. I've recently gotten back into FPV flying and I'm trying for some longer range, trying to get back into 1.2gz. Ive got a setup that by all my reasonings should give me crystal clear video without issues- yet I am having issues. I believe the eZUHF I am using for control is interfering with my video because I'm having lots of random static and white-outs while flying. My video signal is great when i'm closer than about 100 yards but outside that It just has this intermittent static. I've never gone down because of it but I know it's not what it should be. Ill make a list of possible issues and if anyone has had these problems or thinks they know what the issue is please fire away! I'd love to hear from you.
THEORY #1 : 1.2 being very close to the third harmonic of 433mhz I'm wondering if the ezuhf is causing occaisional signal problems for the VRX.
POSSIBLE SOLUTION: https://www.readymaderc.com/products/details/low-pass-filter-for-433mhz-sma-antennas This filter from rmrc is EXTREMELY pricey but I'm willing to bite the bullet if it will fix the problem. Just wanna hopefull get some input here that will help me narrow it down.
THEORY# 2 : I've read that you should be at least 5 feet away from your ground station when using EZUHF so maybe that's the problem? I don't have a very long video cable coming out of my ground station so I can only get my TX about 3 feet from the ground station. If this is the problem then I guess a long video cable to go from my fatsharks to the GS will fix it. Any thoughts? This is probably the cheapest fix. I've ordered a 25 mw FPV tx to use as a repeater between my GS and FS goggles which will allow me to get more distance between me and the GS. So if this works I guess I'll figure it out in.. three years or something because the shipping from china or whatever is moving at glacial speed.
THEORY #3 : Im getting electromagnetic interference into my video system from some part of the plane or from my ezuhf rx. This one is where I'm pretty flummoxed. I've read about using ferrite/torroid to reduce EMI in a system but I really don't know a ton about EMI and what not so I don't know where to strategically place this stuff. I've also thought of running my FPV system off a seperate battery than my RC electronics but not sure if that would help. I read that wires leading to and from the VTX and battery can pick up the interference like an antenna. Not really sure how to combat that.
THEORY #4 : The eZUHF control box is not well shielded and is radiating interference into my ground station. Not sure how this really works or how to stop it. I just read that it could be a thing.
SO theres my problem and theories. Hope somebody finds this who can help, and if the post can help somebody else then yay. Thank you in advance for anybodies help.
I used to fly 1.2ghz FPV with a standard dx6i a few years back but got out of FPV for a while. I've recently gotten back into FPV flying and I'm trying for some longer range, trying to get back into 1.2gz. Ive got a setup that by all my reasonings should give me crystal clear video without issues- yet I am having issues. I believe the eZUHF I am using for control is interfering with my video because I'm having lots of random static and white-outs while flying. My video signal is great when i'm closer than about 100 yards but outside that It just has this intermittent static. I've never gone down because of it but I know it's not what it should be. Ill make a list of possible issues and if anyone has had these problems or thinks they know what the issue is please fire away! I'd love to hear from you.
THEORY #1 : 1.2 being very close to the third harmonic of 433mhz I'm wondering if the ezuhf is causing occaisional signal problems for the VRX.
POSSIBLE SOLUTION: https://www.readymaderc.com/products/details/low-pass-filter-for-433mhz-sma-antennas This filter from rmrc is EXTREMELY pricey but I'm willing to bite the bullet if it will fix the problem. Just wanna hopefull get some input here that will help me narrow it down.
THEORY# 2 : I've read that you should be at least 5 feet away from your ground station when using EZUHF so maybe that's the problem? I don't have a very long video cable coming out of my ground station so I can only get my TX about 3 feet from the ground station. If this is the problem then I guess a long video cable to go from my fatsharks to the GS will fix it. Any thoughts? This is probably the cheapest fix. I've ordered a 25 mw FPV tx to use as a repeater between my GS and FS goggles which will allow me to get more distance between me and the GS. So if this works I guess I'll figure it out in.. three years or something because the shipping from china or whatever is moving at glacial speed.
THEORY #3 : Im getting electromagnetic interference into my video system from some part of the plane or from my ezuhf rx. This one is where I'm pretty flummoxed. I've read about using ferrite/torroid to reduce EMI in a system but I really don't know a ton about EMI and what not so I don't know where to strategically place this stuff. I've also thought of running my FPV system off a seperate battery than my RC electronics but not sure if that would help. I read that wires leading to and from the VTX and battery can pick up the interference like an antenna. Not really sure how to combat that.
THEORY #4 : The eZUHF control box is not well shielded and is radiating interference into my ground station. Not sure how this really works or how to stop it. I just read that it could be a thing.
SO theres my problem and theories. Hope somebody finds this who can help, and if the post can help somebody else then yay. Thank you in advance for anybodies help.