View Full Version : Wireless Video Transimission


Ilias Papaioannou
May 10th, 2011, 09:08 AM
Hello!

I want a cheap solution to send SD video from my camera to a receiver wirelessly. I am going to have my camera on a Steadicam. So, the difficulty is that the camera will be mobile so the RF signal will be defracted all the time. For that purpose I'm looking for a VHF sender solution with 1 Watt Tx power and for a two diversity receiver. Am I into the correct direction?

Thank you in advance,
Ilias Papaioannou

Steve Gibbons
May 10th, 2011, 01:40 PM
Might be a solution for you here:

Cube | World's First Camera Top HD Video Encoder Solution (http://cube.teradek.com/)

Ilias Papaioannou
May 10th, 2011, 03:42 PM
Thanks for the reply. Any other ideas? I don't have the money right now to buy something like this.

Dean Sensui
May 10th, 2011, 10:11 PM
Is this so the signal can be recorded or just so a director or someone else can monitor the camera wirelessly?

Adam Palomer
May 11th, 2011, 01:13 AM
If you are looking for a VHF transmitter (54MHz ~ 225MHz), then I'm afraid your options are going to be very limited. I have been interested in a similar set-up myself, but haven't found anything portable in VHF.

If you can settle for UHF (420MHz ~ 700MHz), it will give you a better picture quality, minimal ghosting (http://www.rsm.govt.nz/cms/image-library/interference-images/ghosting2.jpg), better coverage indoors and there are more affordable options available in UHF since it is popular among amateur TV operators (In Greece, as in most countries, your government might require you to obtain a license to be able to broadcast at 1 watt).

Here are some good links for transmitters. Please note that all these transmitters are analog (PAL & NTSC), not HDTV (DVB)

(1) ATV Amateur TV Transmitters (http://www.northcountryradio.com/TVTransmitters.htm)

(2) MINI-KITS AMATEUR TELEVISION KITS (http://www.minikits.com.au/kits1.html)

(3) VIDEO SENDERS (http://www.rf-links.com/newsite/transmitters/vsender-pal.html)

Link #2 includes TV transmitter amplifiers. So for example, if you manage to find a miniature VHF transmitter that puts out 50mW of power, you can then add a small amplifier which will boost the output to 2, 5 or 10 watts.

Charles Newcomb
May 11th, 2011, 11:22 AM
You didn't say what your camera is; but this guy makes a wireless transmitter/receiver for DSLR DSLR Wireless Monitors (http://www.seekshelterimmediately.com/blog/) and it's really inexpensive.