FPVLAB

image
Results 1 to 10 of 10

Thread: Hello, I need long range for a project, is it possible to link multiple repeaters?

  1. #1

    Hello, I need long range for a project, is it possible to link multiple repeaters?

    I need pretty long range on a very directional path, like a radio highway, would it be possible to link 2 or more repeaters with both video and rc @ say 433 mhz and 1.3ghz for example?

  2. #2
    Instructor Pilot Channel 1's Avatar
    Join Date
    Nov 2013
    Location
    Out in the middle of nowhere.
    Posts
    4,850
    Quote Originally Posted by Valkyrie View Post
    I need pretty long range on a very directional path, like a radio highway, would it be possible to link 2 or more repeaters with both video and rc @ say 433 mhz and 1.3ghz for example?
    Yes, lookup the term crossband repeaters.

    Wayne
    Everybody loves a bunny.

  3. #3
    Quote Originally Posted by Channel 1 View Post
    Yes, lookup the term crossband repeaters.

    Wayne
    Thank you, does it have to be crossband or can I have multiple 433 mhz repeaters for example? Guess I'll do some reading.
    Last edited by Valkyrie; 13th April 2017 at 10:37 PM.

  4. #4
    Instructor Pilot Channel 1's Avatar
    Join Date
    Nov 2013
    Location
    Out in the middle of nowhere.
    Posts
    4,850
    Quote Originally Posted by Valkyrie View Post
    Thank you, does it have to be crossband or can I have multiple 433 mhz repeaters for example? Guess I'll do some reading.
    I doubt you could get enough frequency offset to use 433 alone.

    Wayne
    Everybody loves a bunny.

  5. #5
    Quote Originally Posted by Channel 1 View Post
    I doubt you could get enough frequency offset to use 433 alone.

    Wayne
    Do you mean specifically within 433mhz? Wikipedia says Amateur repeaters in the 420–450 MHz band use a 5 MHz separation with the input being either on the higher or lower portion of the 440–450 segment of the band (the standard changes regionally).

    Does 433 equipment like dragonlink let you change the frequency slightly? Could it work with 5mhz seperation?

  6. #6
    Instructor Pilot Channel 1's Avatar
    Join Date
    Nov 2013
    Location
    Out in the middle of nowhere.
    Posts
    4,850
    Quote Originally Posted by Valkyrie View Post
    Does 433 equipment like dragonlink let you change the frequency slightly? Could it work with 5mhz seperation?
    I don't think Dragon Link would work as it is frequency hopping.
    Everybody loves a bunny.

  7. #7
    Yes, I'm starting to see lots of problems with all this, what I thought were repeaters are more like relays of video and rc control, the problem for me is I can only fly on one frequency and have video on one, so if I had 5.8 and 2.4 ghz repeaters going to 1.3ghz and 433mhz I could only fly where the 1.3ghz 433mhz radio signal is when I'd like to fly also where the 5.8 and 2.4 ghz is.

    I don't know what the problem with frequency hopping is but I believe you.

    Would this work though, take a 433mhz system for example.. I send out the signal, at its longest range where the signal is weak I pick the signal up with an antenna physically isolated from the transmitter, and send it along, all this with highly directional antennas and perhaps some shielding or other measures too.

  8. #8
    Navigator Siv's Avatar
    Join Date
    Jan 2014
    Location
    Richmond, TX
    Posts
    344
    Can you explain your long range needs in a bit more detail? You can go pretty far with a 1.3GHz video and 433MHz control provided you have some semblance of line of sight. Your airframe is going to be more of a limiting factor than your control/video range assuming you are returning to home.

  9. #9
    FPV Techanic RonSII's Avatar
    Join Date
    Dec 2011
    Location
    PNW USA
    Posts
    3,400
    Yes, definitely need a few more details into what you are trying to accomplish. You might also check out user 'Bluestreak' here and on youtube I think... He has some cool repeater projects that were done a while back.

  10. #10
    Pilot Hockeystud87's Avatar
    Join Date
    Feb 2013
    Location
    Bonney Lake, WA
    Posts
    1,202
    seems like the dragon link has done well. I'll use the V2 with new firmware
    sum ting wong
    WI to low
    BANG DING OW -chatch

    Sounds like a typical RcLab1 maiden flight to me -ssassen

    Whatever. This forum sucks. -SENTRY

Similar Threads

  1. Choosing a long range UHF R/C link ??!!
    By khaled_abobakr in forum RC TECH
    Replies: 119
    Last Post: 18th March 2014, 11:33 PM
  2. Replies: 1
    Last Post: 22nd August 2013, 04:19 AM
  3. Replies: 0
    Last Post: 21st August 2013, 11:22 PM
  4. Replies: 10
    Last Post: 6th August 2013, 10:44 PM
  5. Low altitude long range RC link
    By greensplorator in forum IFR - Video Link Discussion
    Replies: 7
    Last Post: 7th April 2012, 03:47 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •