G'day, i've got an Xroc 250 i bought some years ago and am trying to set up fat shark vs1100 fpv goggles with it. need to know if i need a seperate video transmitter  on the quad copter please?

The quad copter came with a camera from factory and my fat shark kit also came with a seperate camera but no video transmitter

The XROC-250 has a 5.8GHz video transmitter (VTX) already built into it so it will be compatible with your FatShark VS1100 / VR1100 FPV Goggles which have a 5.8GHz receiver built into them. So all you need to do is to simply tune your FatShark goggles into the same 5.8GHz band/channel/frequency that is being broadcast by the XROC-250.

P.S. Welcome to the forum

Thanks very much mate, I'll give that a go!
Is it just a matter of using the channel button on the goggles?

The FatShark VS1100 / VR1100 (Transporter) goggles only support the "FatShark" (Channel F) frequencies listed below which you change between by using the Channel Up/Down buttons on the goggles:

• Channel 1: 5740 MHz
  
• Channel 2: 5760 MHz
  
• Channel 3: 5780 MHz
  
• Channel 4: 5800 Mhz
  
• Channel 5: 5820 MHz
  
• Channel 6: 5840 Mhz
  
• Channel 7: 5860 MHz
  

You will need to remove the top plate from the ROCHOBBY XROC-250 and ensure that the VTX band is set to FR4(F). I recommend that you set the frequency of 5860 MHz which is Channel 7. That channel frequency is well outside of the 5.8GHz WiFi frequency bandwidth (see Oscar's FPV frequency chart HERE) which means you will minimise any interference you might get from nearby WiFi transmission signals. To set Band F / Channel 8 (which is frequency 5860 MHz), set dip switch #1 to the ON / UP position, and dip switches #2-#5 to the OFF / DOWN position. I don't think dip switch 6 does anything so that can probably be left in either position.





Once you've done that, power up the quad and use the Channel Buttons on the FatShark goggles to select Channel 7 (the 5860 MHz frequency).

Aahhh, okay. That transmitter is missing from my unit so I'll chase up a replacement and go from there.
Thanks very much for the info, much appreciated ?

Does your XROC-250 quad actually have a VTX in it? If not then that seems odd to me because it has a camera and that quad came as a ready-to-fly (RTF) kit, so it should have a VTX in it.

If you're not sure if your XROC-250 has a VTX in it, or if it does have a VTX but you're not sure what make/model it actually is, post up some good clear photos of the quad and/or VTX and we might be able to help pinpoint or identify it for you.

I don't think it does, I don't recall seeing one on it when I first got but it's always had the camera.
I didn't really use it much when I first got it and when I did I only flew line of sight!

I've just decided to use it again and also with fpv but there's no transmitter.

Macca where you at mate? You sound distinctively aussie . Im in melb and can help out if needed.

G'day mate, I'm in WA.
I've looked at snowleopards pics and a YouTube video that show the transmitter, but mine doesn't have one.
Can anyone recommend a transmitter to suit my goggles and Xroc please?

https://buzzfpv.com.au/product/tbs-unify-pro-nano-5g8/

https://buzzfpv.com.au/product/tbs-unify-pro32-hv-mmcx/

these are the transmitters i choose.
you might need to solder, additional you might need a matching antenna. the nano pro i listed would require a ipex connector and the unify hv would need an antenna with mmcx connector.

this would match the nano pro https://buzzfpv.com.au/product/matchstic...u-fl-rhcp/

i found this for the hv:
https://buzzfpv.com.au/product/ocp-5-8/

you would need to check your goggles antenna, if the would have lhcp antennas attached, the rhcp antennas i listed wouldnt give the best signal, you would need lhcp antennas