Jump to content

Attention: RC-CAM.com will be closing down August 2021.

The RC-Cam.com forum was the very first online community dedicated to the advancement of wireless video cameras on radio controlled (R/C) models. This is now called "FPV" (First Person View). We are proud of the contributions that our members have made to the FPV hobby.

We've seen significant changes over the last twenty years. Initially there were a lot of eager R/C hobbyist that built their own video systems. Allowing these creative individuals to share their work was the purpose of this site. Now the FPV market is flooded with low cost systems; Sadly DiY FPV video projects are now rarely discussed.

RC-CAM.com (main site and forum) will be closing down August 2021. This is being announced now (March 2021) so that everyone has time to download any information that is important to them. After the site is shutdown the information will no longer be available here.

We appreciate every member's involvement with advancing the FPV hobby. It is indeed sad to say goodbye to all our online friends. Be safe and stay healthy.

Wire Antenna for 1.2Ghz TX - help please ..

Recommended Posts


I have started experimenting with live video from my Trex 450.

I placed a cheap 1.2Ghz pinhole ebay camera on it, build the patch antenna from this site (unbelievable change in reception) and I'm receiving it on my laptop.

Not too bad ... But ..

At some point the little wire attached to the camera's TX PCB went lost !

I looked at the web and found all the wave length calculators.

one more BUT ...

Should I use half length ? quarter length ?

What kind of wire ?

Also, anything that may make transmitting better will be appreciated.

Thanks - Gil

Link to post
Share on other sites
the size of the wire is not important, but lenght is critical. I would use 1/4 waves


Do I have a way to meture the exect frequancy that my tx uses ? (I know it is basicly a 1.2Ghz but its probebly not precise)

- I don't have an RF equipment but I do have a scope.

Ideas ?

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...