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Thread: MaxMyRange - theoretical range calculator

  1. #91
    Navigator
    Join Date
    Jan 2012
    Location
    Anchorage, Alaska
    Posts
    68
    Thanks for this ProtoCrash!

    Awesome calculator!

    How are the trends now?

    -Mike

  2. #92
    Hey Mike - glad you like!

    I'll dig up some stats later today From what I can see the site's been pretty busy so it should be interesting!

  3. #93
    Thank u proto...awesome reference
    Max

  4. #94
    Hi guys,

    Six months and 15,452 searches later I’m glad to present our latest maxmyrange stats!

    Visitors
    - 2909 visits from 1673 people from 68 countries.
    - Top countries are US (41%), UK (8%), Australia (7%), Canada (5%), Finland 5%) and Germany (4%)
    - 34% of people aged between 35-44 and 25% 45-54 and 23% 25-34
    - Average number of searches per session 10 (median 6)
    - And a really pleasant surprise (or statistical error): 2.1% of visitors were female

    The frequencies war
    - 1.3GHz continues to be the most popular frequency (38%)
    - Followed by 5.8GHz (32%), 433MHz (18%), 2.4GHz (10%) and 900MHz (3%)
    - I do wonder at the 2.4 stat as I feel it is a really heavily used band and yet people don’t seem that interested in it…

    The power war
    - 600mw continues to be the most popular with 20%
    - The low powers (10mw-400mw) got 32%
    - The medium powers (500mw-800mw) got 42%
    - The high and insane powers (1W-10W) got 19%

    I attach a graph to show the distribution…

    The antenna wars
    This needs a bit more analysis. I’ve split this section into video and control, receiver and transmitter

    Transmitter – Video
    - Undisputed champion, the cloverleaf with 37%
    - Followed by the inverted V with 12%
    - Ducky, mad mushroom and skew planar 11%

    Transmitter – Control
    - Most people seemed to focus on comparing the Diamond with the Moxon (each getting 27%)
    - Followed by inverted V (17%)
    - Rubber duck (11%)

    Receiver - Video
    As expected the spread here was much wider due to the many choices available. Top scores in descending order:
    - Cloverleaf 10%
    - Pepperbox 9%
    - Crosshair and Yagi 7% each
    - Skew planar and duckie 6% and 5% respectively

    Receiver - Control
    The half wave dipole was clearly the winner here with 41%
    Followed by the turnstyle (14%) and the inverted V (8%)

    And finally, the absolute top winning combinations

    1244 searches for 1/2 wave dipole on 1.3GHz at 500mw
    731 searches for cloverleaf on 5.8GHz at 600mw
    653 searches for the pepperbox on 1.3GHz at 800mw
    592 searches for the Vulcan on 1.3GHz at 1000mw (now that’s a killer combo!)
    562 searches for the ½ dipole on 433MHz at 100mw

    Finally, for whoever’s really into the detail I can send over a csv with the raw data for you to play around with (any interesting observations please share here!)

    Proto

    Click image for larger version. 

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  5. #95
    Co-Pilot
    Join Date
    Nov 2011
    Posts
    1,623
    Great information feller, nice to get some hard stats on the setups people are most interested in.

    As for 2.4 being popular...... I agree with your stats because I'm not sure that it is. Most people I see starting fpv are using 2.4 for control and so avoid using it with their video and then once they go UHF few people switch their video to 2.4 as their buddies are still on 2.4 rc.

    So I think 2.4 will continue to be niche as long as there are mostly 2.4g Rc sets out there.

    I really interested in getting the new immersion 2.4 kit but i could only use it when flying alone. Most my friends running boosted 2.4 so likely to seriously hamper me.

  6. #96
    Navigator
    Join Date
    Sep 2014
    Location
    Copenhagen, Denmark
    Posts
    51
    Any plans to factor in polarization ?

    So that if I match a rubber ducky to a helical, it would tell that there is a polarity mismatch, and decrease the range. Same with right hand vs left hand circular polarization.

  7. #97
    Already factored in

    Indeed, if you match linear and CP antennas it reduces total gain by 3 (which from what I know is a good average approximation). Check out the rest of the assumptions in the assumptions page: http://www.maxmyrange.com/assumptions.html

    Left and right CP though isn't factored in at this time.

  8. #98
    Navigator
    Join Date
    Sep 2014
    Location
    Copenhagen, Denmark
    Posts
    51
    I'm getting

    5.8 ghz, 500 mw, rubber ducky, helical 7t = 6.7 km
    5.8 ghz, 500 mw, skew planar, helical 7t = 6.67 km

    So using your assumpetions page, where it states that rubber ducky have little more gain than the skew planar, would explain that little difference, but 3 db should be half the range ? Bug?

  9. #99
    I think it assumes you're using magical rubber duckies let me have a look!

  10. #100
    GO HAWKS Hucker's Avatar
    Join Date
    Sep 2011
    Location
    Seattle, WA USA
    Posts
    3,046
    Quote Originally Posted by ProtoCrash View Post
    Already factored in

    Indeed, if you match linear and CP antennas it reduces total gain by 3 (which from what I know is a good average approximation). Check out the rest of the assumptions in the assumptions page: http://www.maxmyrange.com/assumptions.html

    Left and right CP though isn't factored in at this time.
    Proto:

    Pepper box on the assumptions page is listed at 11dB, I think this should be 14dB.
    KF7SKL,TechPod/Walrus/250mmQuad/HoneyBadger, EZUHF,SL-AAT, 1G3/2G4/5G8

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