HDMI transmitters – short range for consumers + homes
Posted 12 June 2012 - 12:34 AM
Short range for consumers + homes (cheap) [ I do not sell anything of this stuff (no margin)]
Older ones have a .5 sec delay, new stuff has 1-5 msec delay. There are about 20 gadgets like this on the market Don’t buy anything that you can’t return!! I started a collection of links, I have no recommendations on what is best. The Robert Benson guy in San Diego in this list may be a good source. If someone really digs into this let us know. Remember HDMI connectors in a professional setting will cause severe pain. The terradeck uses the same wavelength 5.2-5.8 but different way of Tx. it has the same problems this stuff does: (range, reliability, HMI lighting). More on Tx in general read my previous post.
Accessories that seem useful:
5V power battery: much of this consumer based gear runs on 5V as is present in USB cables. Here is a recharable 5V Batt. Lenmar PPW66 PowerPort Wave 6600 - Portable Battery and Charger for iPad/Tablets, Smartphones, and Other Devices $ 42 :
HyperJuice Mini 7200mAh External Battery (Gold)
1 2 3 sorry pix just dont show on this board easily
1.) P-Tap to USB power converter 12V to 5V, no amperage specified, cute for $ 79
2.) HDMI cable extremely thin (unique manufacturer):
3.) Mini HDMI C female TO HDMI MALE 180d 90d Rotating Swivel Right Angled Adapter available many places such as:
DSLR wireless – San Diego
Still Camera (5D, 7D) wireless HDMI link
www.dslrwirelessmonitors.com or http://seekshelterimmediately.com/blog/
Robert Benson. 619 733-9327 firstname.lastname@example.org photographer in San Diego sells HDMI pakage very reasonable $ 650 with batteries etc.
Nice videos, 10 day warrantee, he admits to being a garage outfit and seems like a straight ahead guy (most other folks that resell a package like this pretend they are Archimedes and invented the sun) watch his videos:
FCC ID number is BGAACA300T.
Here the HDMI video link
This is the 2.4 analog composite video link
The wireless signal is transmitted in real time with no lag (almost none… there is a one milisecond latency, which is barely perceived by the human eye). The transmitted signal is 1080p with a data rate of 3g bps. On some DSLR cameras, like the Canon 5dmk2, the hdmi output from the camera is dropped from 1080p to 480p when the record button is pushed. During this time, there is a 3.2 second black out on the monitor as the HDMI monitor reacquires the downgraded signal and switches to the lower resolution.
Robert does not seem to use the Liliputs anymore. Do not use this monitor:
LILLIPUT 669GL-70NP/C 7" 16:9 LCD MONITOR WITH VGA/HDMI OR DVI INPUT
3 big problems with above monitor $ 200:
1. The menu is responding to commands very-very slow
2. The screen aspect ratio has 2 settings only 4:3 and 16:9, not Enough for HD pictures.
3. Not Enough signal formats, work only with some cameras
Generally there is a good reason why Liliputs suck. Note that most these monitors generate RF and ruin the range (sensitivity) of the Rx if nearby.
His personal photography site:
Consumer versions (there are several) have very short range, maybe 30 feet, unclear what delay.
I have heard of these being used on Cannon 5D and 7D,
License free $ 1000.00
• Frequency Band Range: 3.1 - 4.8 GHz HDMI or component in
• Resolutions: 480i, 480p, 720p, 1080i and 1080p@24Hz, 25Hz, and 30Hz
• Power Supply: 5V DC 2.5A (akward), • Dimensions: 6" W x 2" H x 4" D
Gefen TV GTV-WHDMI-BR
Wireless HDMI 1080p 100 ft. Extender $ 500 no return
Most this stuff has very short range, needs AC on both ends.
Gefen GTV-WHD-1080P-SR Wireless HDMI Extender (In-Room Solution)
Approx $ 300
HDMI HD AV Wireless Extender
Aussie system $ 300
Transmission range in the vacancy indoor environment 30m.
Supporting the video HDMI interface at the maximum of 1920x1080P@60 Hz@36bit,225MHz bandwidth.
Supporting HDCP1.2 protocol.
Supporting the EDID function.
Supporting the CEC function (for the receiving and display devices).
Supporting the IR extension transmission function.
Transmission power 12 dBm.
Supporting the point-to-point transmission function currently which can be expanded to the point to multi-point or multi-point to multi-point transmission function.
Supporting the AES128-bit image encryption Function.
Supporting the reverse back-transmission channel at the maximum rate of 100 kbs. Supporting OSD display. Supporting WHDI 1.0 specification
HD video protocol HDMI
HD video encryption protocol HDCP 1.2
Unobstructed Effective Range ≥30m
Video formats supported TV:1080p,1080i,720p,576p,480p PC:VGA(640×480) SVGA(800×600) XGA(1024×768),SXGA(1280×1024)
Audio formats supported PCM, DTS, DOCBY DIGITAL
Operating frequency 5.1~5.9GHz
RF communication system MIMO Modulation mode OFDM
Maximum transmission power 12dBm Image transmission power ≥30m
Image delay <1 ms
Operating frequency 5.1~5.9GHz IR carrier modulation frequency supported 38KHz
Operating power supply 100~240V AC mains, 5V 2A DC power
Cheap and nasty short-range stuff:
this page has links to most the gear out there. Some of it is vaporware. Don’t buy anything that you can’t return!!
Peerless HDS100 HD Wireless Multimedia Center - Black
Brite-View Air Sync HD
While the Air HD has 2 HDMI inputs, 2 component video inputs and a composite input, the Air Sync HD offers 1 HDMI input and output.
no delay, 300 ft range with external antennae? HDMI 59.9 only 5V internal $ 200
use with MD-DUCC unit from Decimator which is an up-down-cross converter;
Brite-View Air Sync
HD|DX (BV-2822) Uncompressed 1080p HD Video/ Audio Wireless Transmission Kit (Multiple Inputs) – Black, they say 1ms $ 230
compare to ASUS
AMIMON, ( an Israely company) the market leader in wireless HDTV semiconductor solutions announced that Chinese Hisense is introducing three new accessories based on WHDI (Wireless Home Digital Interface) standard to allow users to connect HD sources, such as laptops, iPhones and other devices to the TV.Hisense will demonstrate a WHDI Transmitter Stick.
I am not sure if this is available in the USA. Here the story of the company, owned by the Chineese government: http://en.wikipedia.org/wiki/Hisense
William B. Demeritt, III Steadicam Owner / Operator built a HDMI unit with custom modifications that increased range. 818.257.8794 Los Angeles, CA http://www.wbd3.com
Tested at clairmont http://www.steadicamforum.com/index.php?showtopic=13923
WiCast EW2000 Wireless video/audio extender – External $ 123
WiCast is USB powered, so there is no need for an extra adapter. Users simply plug the device into the HDMI port and the two USB ports of a laptop for power. This feature allows users to avoid the hassle of messy wires and the need to look for and be tied to power sockets.
Full HD 1080P HDMI Wireless Transmitter and Receiver Kit Video/audio extender – External $ 250
Supports 1080P/25Hz non-compressing image
• Transmission speed: 300Mbps
• Frequency: 5.18~5.32, 5.50~5.70 and 5.745~5.825GHz (ISM 5 GHz)
640x480 @ 85 fps；800x600 @ 85 fps
1024x768 @ 75 fps；1280x1024 @ 30 fps
1600x1200 @ 30 fps；1440x900 @ 30 fps
1680x1050 @ 30 fps；1920x1080 @ 30 fps
FCC and CE regulatory approved SIIG’s limited 3-year warranty
Manual march 2011:
SIIG, Inc., 6078 Stewart Avenue, Fremont, CA 94538-3152, USA 510-657-5962 Ph: 510-657-8688, Contact Support
For Sales, dial (510)657-8688 & press 1, For RMA, dial (510)657-8688 & press 2
HELLO FOLKS, BY TYLER CARTNER 10:05 AM ON DECEMBER 14, 2010
We recently saw this little HD wireless kit on Markertek’s web site and thought it might make the perfect wireless field solution for the 5D on the cheap. We ordered one and tested it. We thought we’d save ya’ll a little time and talk about the pros and cons.
HD video transmitted almost instantly through the air for under $400!? Yes indeed, and the image was pretty good too. It was re-compressed on the fly (h.264), but damn if it wasn’t fast at 30ms and the image quality was very good with the exception of some artifacts when the image got busy. We tested the range to about 100′ and it held up. Certainly it would be usable as a director’s monitor. But, and there is a BIG BUT, when used with the 5D, a problem comes when you hit the record button; it takes the unit about 13 seconds to re-handshake the HDMI signal and put up the image. We wouldn’t be able to live with this delay in a production setting, but maybe there are those of you who could. We were able to get rid of the delay by sending the signal via the composite output of the 5D, but of course the image quality is much lower and you lose the ability to also output over HDMI from the camera, damn.
We were dying to test the HD FLOW with the 7D and a friend of ours was gracious enough let us borrow his. The HD FLOW works beautifully with the 7D! Since the 7D doesn’t change resolution when the record button is pressed, there is no wait time, and the image stays up!
Here is a summary of the pros and cons of the HD FLOW when used with the Canon 5D:
30ms delay, almost instant video!
Image quality decent enough for director’s monitor, Possible to have up to 4 receivers, Instant image when using composite out
Good solid range of 100′ or more, Runs on batteries or A/C
Image showed artifacts when there was a lot of movement
Delay from the time you push record on 5D is about 13 seconds
Cheap plastic construction would certainly be challenged in a production environment, HDMI handshaking a bit unreliable
This could be a great solution for the 7D, but the 13 second delay makes it impractical for use with the 5D MkII.
Here is a link to the unit on Markertek. We are not affiliated with them in any way.
Wireless TV WiFi / HDMI Multi-Room Wireless HD Video Kit $ 170
Seems you can install additional receiver:
1T-CT-690 Series HDMI Wireless Extender
Low prices, sometimes more to program, cheap packaging.
2012 Cinegear show news:
HDMI only 20 yrd range with my test. Prob repakaged home link as many of the above. Has battery plates on it. 1 TX up to 4 RX $ 1700 1 frame or less delay.
http://optitek.org/ 310 – 995-5650 shown at 2012 Cinegear show in LA.
Optitek had a genius gadget at CineGear:. They have a modified lens mount for the still Cannon lenses that let you focus the lens with their own internal factory electronic motors with a remote wired focus control. Now you can buy cheap cameras and focus cheap lenses professionally. WOW (also not on their website.
Also at CineGear 2011 was but did not see it myself:
Ultralight, uncompressed, realtime, wireless. www.PARALINX.net
Heard that Tx placement is critical which appies to all these units as their power is very small. With attention and knowing their range is small they can be usefull on small stages or small houses. The sales people here make claims that they develped this, its hard to brlieve that since they did not even pay attention to the standard fim and video 10-30V supply. Ed.
Mfct Dan Kanes says: available July 1 ? Full 1920x1080 10 bit 4:2:2 HD. Up to 320 feet line of sight and up to 200 feet through walls. Less than 2 MS Latency. It requires 5V Power on either side to run. We include One D-Tap Power supply which also could charge your Cell Phone or iPad from a D-Tap (aka P-Tap port). The receiver side also requires 5V power and we have a bunch of recommended 5V USB batteries that are not expensive, or you can purchase an additional D-Tap to USB power cable with an appropriate receiver lead. We do include a powertap regulator cable in the package. Affordable at $1199 MSRP.
Biggest downside: it's HDMI in and out. Even they're suggesting "just go get a Decimator 2 if you need HD-SDI to HDMI", and they're right. To build this wireless HD kit out right, you will spend another $495 for a Decimator 2, AJA HI5, Atomos Connect H2S (for $349 when it ships), etc. Likewise, you'll need an AJA HA5, BlackMagic HDMI to HD-SDI on the receiver, Atomos Connect S2H (for $349 when ships). They claim to have operated 6 systems simultaneously. Emitter draws 0.1, receiver is 0.2 amps. No timecode passed. This is AES 128 bit wireless encryption, FCC permit?
$995 + $495Decimator + $495 Decimator = $1985 (plus tax?).
Seller: Hot Rod Cameras 2706 West Burbank Boulevard, Burbank, CA 91505
323 230 3589 email@example.com
This is an internet retailer that seems to care about its customers (WILD YES) – THEY CARRY MANY WIREless hdmi SOLUTIONS AND SEEMS UP TO DATE (I AM NOT)
if you are really interested I post my overall Tx reviews regularly on the video assist yahoo board.Go to http://movies.groups.yahoo.com/group/VideoAssist/
for the only Video Assist chat group on this planet.
Posted 12 June 2012 - 07:55 AM
Also check out:
I spent some time with these guys at Cinegear and at the Stabilizer Gear Expo. While I was originally not interested in an HDMI solution, I've since found out that the upgrade to my monitor (Cinetronics) will have HD-SDI to HDMI conversion built in. So, at this point, the biggest problem for me is the time it takes to reconnect the transmitter and receiver once the signal is lost (7 seconds). If they can get this time down, I'd consider one.
Posted 12 June 2012 - 11:58 AM
The reconnection time might improve with the software updates, but I'm not really sure. Personally, my approach to that issue is: it draws only 5 watts, so connect it to a battery that'll run it all day and never power it down. Boom, no need to reconnect.
Posted 13 June 2012 - 08:16 AM
I would not expect any major changes(such as a quicker connect time or hd-sdi) to this product that aren't updates to the amimon reference design.