HOLLYLAND TUTORIAL SERIES | Cosmo C1---ALL

#HollylandTech is proud to introduce the wireless SDI&HDMI video/audio transmission system - COSMO C1. Transformed by Hollyland's HEVO wireless transmission technology, C1 offers a new standard for real-time video monitoring up to 1,000ft line-of-sight. Boosted signal strength and superior anti-interference capability in the 5.1GHz-5.8GHz frequency spectrum guarantee buttery-smooth video transmission in complex environments. Industry-first to integrate UVC (USB Video Class) interface offers a simplified solution to stream and cloud-share your video works.
#CosmoC1 KEY FEATURES:
1. Boosted signal strength and superior anti-interference capability
2. Seamless Auto Channel Switching
3. Embedded UVC (USB Video Class) For Direct Live Streaming
4. Ultra-low Latency, Down To 40ms
5. HDMI&SDI In/Out + SDI Loopout
6. Patented Ball Catch Design To Fasten The Battery In Place
7. Battery Low Indicator. No More Last-minute Panic.
8. Vertical & Horizontal Mount Design
9. Three Power Options - DC Adaptor/L-series(NP-F) Battery/USB-C..., and many more user-friendly details waiting for you to find out.
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[@otwinta83]

what video bitrate does cosmo c1 transmit?

[@podermanifiesto18]

Can this be use with handle Ecamm Live?

[@a3iuuu]

How to power the receiver and the transmitter with power bank? How much power does it need? How long do they last? Which external battery do they require and support? Can I use the Panasonic x2 battery maybe with an adapter from Sony battery? Thank you

[@hollylandtech]

5V/2A. It is not recommended to use a power bank because the current decreases as the voltage drops after using the power bank. We only recommend NPF batteries for use. You can use V/G mount batteries and then convert D-Tap to DC for power supply. This way, the usage time will be extended.

[@DavidRuizVisuals]

Love it!!!! You guys are awesome!!!! ❤️❤️❤️

[@hollylandtech]

Love you guys!

[@gerhardwaldhart2233]

Hello, perhaps you could help me with a problem. The transmitter always times to the "NO VIDEO". The HDMI connection of the camera is OK and sends the signal. The HDMI cable has been replaced and still no signal is emitted from the transmitter. What else could I do?

[@jyothibharani]

Hi when I try to pair it the reciever is saying starting but it doesn't show the pairing option in the screen but the transmitter works fine pls guide on how to fix this

[@amza85]

Hello! Can you tell me what power bank can I use for cosmo c1?

[@hollylandtech]

Hi there, most power banks cannot stabilize the output power when the battery is low, so it is not recommended to use power banks for power supply in professional scenarios

[@sfcnetworkministries]

hollyland second antenna not coming on the display. how do i fix this 400s model

[@uzzalrahman]

Can I use two receiver from one transmitter?

[@hollylandtech]

Yes

[@hashbrowncreative3466]

I cant seem to use UVC on a macbook with google meet? : Edit, fixed - had to set the camera to 720p :)

[@SnappalPhotography]

can the receiver be connected simultaneously to two outputs - one using usb-c to computer and other using hdmi to tv/project?

[@kalledadib]

hi, why doesn't this model make 1080i 59.94 and the competition equipment does?

[@kevinechemendia]

Hey! Are you able to connect multiple receivers to 1 transmitter?

[@bradsheats6888]

On the usbc connecting to laptop for Zoom.. Can you control which group is on the audio feed or is it both??

[@micnek]

Hi guys! I 'm a wildlife videographer, and wonder if it's possible to start/stop video recording on remote, using your transmitter? It'd also be great to control the camera settings remotely, but most important is just to start/stop recording. Does it work this way? Thx!

[@hollylandtech]

hi Cosmo doesn't support that function

[@micnek]

Thx for the answer! @@hollylandtech

[@thefoodsion]

Awesome!

[@hollylandtech]

Thank u for your support!

[@kylemcgrath5086]

Will the cosmo transmit audio from the camera as well?

[@hollylandtech]

sure😃

[@dam55ian]

what's the difference between the 2 types antennas that are supplied with the kit? and what would be the best config to mount the receiver. does it matter if u hang the receiver upside down?

[@hollylandtech]

Triumph Antenna(2.5dBi) Cylindrical Antenna(2dBi) Mushroom Antenna(5dBi) Lollipop Antenna(2.5 dBi) Soft Antenna(4 dBi Antenna) Those antennas have different gains and different transmission directions. It's worth noting that the mushroom is an omnidirectional circularly-polarized antenna. It fits the application scenarios where there is a noticeable difference in height between the transmitter and receiver. For the 2nd question, it actually depends on what antennas you use. It matters if you use triumph, mushroom, capsule, and lollipop antennas, while it doesn't matter when using soft and cylindrical antennas as long as the RX is set high enough. Here is a link to the FAQ for Mars 300 Pro that might be helpful: hollyland-techhelp.zendesk.com/hc/en-us/articles/360058275054-How-to-install-the-devices-to-get-the-best-performance-

[@alrivera1084]

Are u reading from the company webpage?

[@bozdil7001]

I own the device, but there is a noticable lag between the video and the audio. The video comes first and the audio follows is with a delay which is weird. Normally audio travels faster.

[@hollylandtech]

What's your setup?

[@chris8865]

I have 3 of these and they work really nicely! One thing I haven't tried but want to ask about, the SDI loop out on the Tx unit, will that only output from the SDI in, or can it also be used to output the HDMI in signal? Would really appreciate if anyone has tried this.

[@Sniickerz_CH]

I believe it’s passthrough HDMI In to SDI Out, very handy to go through the transmitter and Out via SDI to an external monitor on your camera, less latency! 🔥 tho to be confirmed!

[@luvucama4258]

Have you tried running the 3 or 2 Cosmo C1 at the same time while live streaming? Just wondering if it works on 2 set.

[@philipsantiago4080]

How many c1 can I run in the same location?

[@jedd1]

Hello, I notice a very noticeable delay in the feed. Any suggestions on how this can be fixed?

[@hollylandtech]

How much was the delay in your case? While the system can reach as low as 40ms, in some cases it does get a bigger lag.

[@wangtwkim4697]

Hi I’d like to know how to set up for both focus puller and director monitor just like your promo video, it seem like all using wireless receivers

[@hollylandtech]

Hi there. The Cosmo C1 can only transmit video signals, and cannot focus the puller and director.

[@wangtwkim4697]

@@hollylandtech Do you understand what I mean? I said set up for focus puller and director's monitor wirelessly at the same time like your promo video, not "focus the puller and director"

[@kalledadib]

when will there be a software update for it to make 1080i 59.94? I bought 6 devices and I can't use it that only makes 1080i 60 and the previous model I have makes 1080i 59.94. this device for being superior should make 59.94

[@hollylandtech]

Hello! Please fill in this form: tqmlk9mc66.jiandaoyun.com/f/604987c7e2b41c000797231d and our support team will identify the issues based on the details you share with us and get back to you as soon as possible. Thank you!

[@lg_yt422]

Seems like a great product! Does the use of UVC demand a specific kind or quality of USB-C to C cable for stability?

[@hollylandtech]

Hello， you can use the standard USB-C to C cable for stability.

[@albaprime]

I spent AU$1500 on this but it won’t work properly with my Sony FX3. Only transmits interlaced!!!

[@hollylandtech]

Hello! Thank you for your feedback and we are so sorry for your unpleasant experience. We noticed there are some compatibility problems between COSMO C1 and Sony FX3 at present that will led to this situation, our product development department has received the feedback and trying the best to fix it. If you meet any other specific technical problem please feel free to contact us at [e-mail] . Thanks!

[@dpjt9452]

Hey! Do the Cosmos C1s connect to the Hollyland app? I'd love to use these with my 12.9" iPad Pro.

[@hollylandtech]

Hi, the Cosmo C1 can not connect Hollyland APP. But Mars 400s pro can do it.

[@dpjt9452]

@@hollylandtech Awesome! Thanks for replying!

[@kissofthecobra3761]

But does it support Twitch?

[@luvucama4258]

Can we use 2 sets of Cosmo C1 at the same time while doing Live streaming?

[@hollylandtech]

sure, but it is necessary to confirm that the two set are more than 2m apart

[@luvucama4258]

@@hollylandtech Thanks. So 2 Cosmo C1 on 2 cameras set 2m apart.

[@SCRCast]

​@@hollylandtechso the receivers have to be 2m meters away from each other? I use two sets for sports. One set works great but the second set will flicker black screen intermittent. Both receivers are about two feet from each other by my Atem switcher

[@luvucama4258]

@@SCRCast Yes that is definitely what i am asking. Its like we can not use the same video capture card model as the computer will read it as one capture card. Is it the same with Cosmo C1?

[@hollylandtech]

​@@SCRCast It looks more like a black screen caused by interference. Does the screen display the Hollyland logo and prompt for linking? You can try scanning and switching to a frequency channel with less interference. The frequency channel between two sets of devices should be set at least 2 channels apart In addition, the antenna should be installed vertically, with the RX at least 1.7 meters above the ground and ensure that there are no obstacles between each set of RX and TX

[@rioghosh9849]

Can I got in India? How much it's price at Indian rupees, please inform.

[@hollylandtech]

Hello friend! Yes, you can, please check out our local dealer PixelPitch's website in India: pixelpitch.in/product/hollyland-cosmo-c1-sdi-hdmi-wireless-video-transmission-system/ Hope it can help with your purchase.Cheers!