DIY video transmitter
- Thread starter hoarp001
- Start date
AndrewGentle
Well-known member
Very impressive. How did you make the connectors both inputs and outputs? I hope you have a big heatsink on your regulator if you're letting people pump 35 v through it and get 9 v out. How much current does it draw?
-Andrew
-Andrew
Chill, man. You and Peter should discuss this privately, not in this thread.
hoarp001
Veteran
Ugh I knew it was you david, why cant you keep the same name for longer than two weeks.
You dont know that I followed your advice, I did mention I have other very good electronics freinds. Since doing the follow focus I have brushed up on surface mount electronics and with the electronic components available now you can make stuff like this pretty easily without having to rehouse things.
I did rehouse a maplin sender which kind of worked but a director I work with regularly complained that it was unreliable and it was right. A bit of work with my electronics freinds and some breadbarding and parts-ordering later solved the issue.
I do remember talking about this with you but I dont ever remember taking much advice, past rehomeing a maplin video sender, which I think is farily obvious.
Wernt you banned from the forum anyway....
You dont know that I followed your advice, I did mention I have other very good electronics freinds. Since doing the follow focus I have brushed up on surface mount electronics and with the electronic components available now you can make stuff like this pretty easily without having to rehouse things.
I did rehouse a maplin sender which kind of worked but a director I work with regularly complained that it was unreliable and it was right. A bit of work with my electronics freinds and some breadbarding and parts-ordering later solved the issue.
I do remember talking about this with you but I dont ever remember taking much advice, past rehomeing a maplin video sender, which I think is farily obvious.
Wernt you banned from the forum anyway....
So what if it is the truth or not? Get over it. This thread is not the place to have this discussion.
redline
New member
ei bro can you send a diagram to my email tnx redline0027@yahoo.com
StayNuts
Active member
just google on wireless video transmitters and you will find thousands of links...
for example one of my favorite websites for spyware....
brickhouse.com
ttp://www.brickhousesecurity.com/pvts-2.html
US$180 only
rogar-Dum(DBG):
In practice, good for 6 hrs with a reach of 60 meters distance, depends on disturbances from other services. Can really advice this solution, it's cheap and for monitor purposes, perfect! To make it more professional looking, you can indeed build it into a little black box with higher-end connectors. Stick also a fake logo on it and it rlooks like a device of 1K. This unit looks for me 'professional' enough. If you hang it somewhere on your rig, nobody will notice it and see it more as a part of your professional gear.
Got the idea for a TV production. We needed to film from the viewpoint of a contestant during one of the survival games. Using a cable was not possible, so we filmed it with a small spycam and wireless transmission. Full HD quality was not required as everyone would understand that it was filmed with a small camera. After the show I started to used it as a wireless monitor system to keep my client off the set, or at least on 15 meters irritating-free distance.
This website has more toys that I am currently using...rogar-Dum(DBG):rogar-Dum(DBG):rogar-Dum(DBG):
For ex. lojack your gear... build a GPS tracker in your rig or pelican case and when it is stolen, you can easy track where it is... also ideal for people who rent there equipment out... note on the case that your equipment is lojacked or GPS trackable, and that scare them away... I have my equipment lojacked... idea came when I was shooting in a very hostile country and our executive producer insist that we and our equipment got lojacked, was required for the insurrance and our safety...
for example one of my favorite websites for spyware....
brickhouse.com
ttp://www.brickhousesecurity.com/pvts-2.html
US$180 only
So why making one by yourself if it is cheaper and easier to buy one...
rogar-Dum(DBG):In practice, good for 6 hrs with a reach of 60 meters distance, depends on disturbances from other services. Can really advice this solution, it's cheap and for monitor purposes, perfect! To make it more professional looking, you can indeed build it into a little black box with higher-end connectors. Stick also a fake logo on it and it rlooks like a device of 1K. This unit looks for me 'professional' enough. If you hang it somewhere on your rig, nobody will notice it and see it more as a part of your professional gear.
Got the idea for a TV production. We needed to film from the viewpoint of a contestant during one of the survival games. Using a cable was not possible, so we filmed it with a small spycam and wireless transmission. Full HD quality was not required as everyone would understand that it was filmed with a small camera. After the show I started to used it as a wireless monitor system to keep my client off the set, or at least on 15 meters irritating-free distance.
This website has more toys that I am currently using...
rogar-Dum(DBG):rogar-Dum(DBG):rogar-Dum(DBG):For ex. lojack your gear... build a GPS tracker in your rig or pelican case and when it is stolen, you can easy track where it is... also ideal for people who rent there equipment out... note on the case that your equipment is lojacked or GPS trackable, and that scare them away... I have my equipment lojacked... idea came when I was shooting in a very hostile country and our executive producer insist that we and our equipment got lojacked, was required for the insurrance and our safety...
why not a UHF transmitter
why not a UHF transmitter
I fail to see the advantage of this DIY unit or 180 dollar model over something like this at $25.00:
http://cgi.ebay.com/Wireless-UHF-Au...8657064QQihZ007QQcategoryZ11726QQcmdZViewItem
When used with a portable LCD TV and a (built in) standard UHF tuner.
Of course you can change the antenna on that unit to a rubber duckie type probably pretty easily.
I know this particular model at ebay is AC powered, but like most devices of this type it probably has an internal AC to DC voltage converter that is far easier to hack than starting from scratch. Also , if you look around you will probably find one that has a DC input (or low voltage AC) on the unit itself.
In fact I bought a similar unit 15 years ago and it worked great. The unit I bought had a 12V DC input and a replaceable antenna. Worked right out of the box with a battery pack and transmitting to a TV
As for 2.4Ghz, as someone posted, forget it. Try those in a place with multiple Wireless Network access points and you will find out they run on crowded frequencies. Not to mention you can unintentionally disable a wireless network at the location with them
I mean I know a project can be fun, but also can be frustrating. Also how muchg money does someone want to throw away on "industrial grade" products when the consumer marked drives the professional market.
Also on the DIY unit whether the unit was properly terminated when using a T connector. I suspect one would end up with double terminated video , unless there was an auto terminating input , which I douibt. Double termination is the worst thing you can do to a video signal.
why not a UHF transmitter
I fail to see the advantage of this DIY unit or 180 dollar model over something like this at $25.00:
http://cgi.ebay.com/Wireless-UHF-Au...8657064QQihZ007QQcategoryZ11726QQcmdZViewItem
When used with a portable LCD TV and a (built in) standard UHF tuner.
Of course you can change the antenna on that unit to a rubber duckie type probably pretty easily.
I know this particular model at ebay is AC powered, but like most devices of this type it probably has an internal AC to DC voltage converter that is far easier to hack than starting from scratch. Also , if you look around you will probably find one that has a DC input (or low voltage AC) on the unit itself.
In fact I bought a similar unit 15 years ago and it worked great. The unit I bought had a 12V DC input and a replaceable antenna. Worked right out of the box with a battery pack and transmitting to a TV
As for 2.4Ghz, as someone posted, forget it. Try those in a place with multiple Wireless Network access points and you will find out they run on crowded frequencies. Not to mention you can unintentionally disable a wireless network at the location with them
I mean I know a project can be fun, but also can be frustrating. Also how muchg money does someone want to throw away on "industrial grade" products when the consumer marked drives the professional market.
Also on the DIY unit whether the unit was properly terminated when using a T connector. I suspect one would end up with double terminated video , unless there was an auto terminating input , which I douibt. Double termination is the worst thing you can do to a video signal.
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You don't have to see the advantage my friend. Everyone is different, and have different viewpoints.
Peter is aware that you only terminate the last unit in a Transmission Line, therefore the signal would not be Double Terminated.
I think it is perhaps unwise to assume other members don't have your level of expertise this early in your membership.
Peter is aware that you only terminate the last unit in a Transmission Line, therefore the signal would not be Double Terminated.
I think it is perhaps unwise to assume other members don't have your level of expertise this early in your membership.