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Low cost ($60) 2.4 G Computer Transmitter with Dual Receiver antenna question...

Posted by Tom in NOVA on June 6, 2009 at 12:00am

6ch24gradiomanualen.pdfI just purchased this low cost 2.4 G Computer Trasmitter/Dual Receiver that is cheap because it does not have the LCD, etc. adjustments built in, but uses your computer to set up and change the settings. It's seems similar to the FASST or Spektrum. (Here is another place to get it from)Of course I promptly broke off the small (about 2 inches) antenna wire on the receiver. My question, before I solder it back: can I add a longer length antenna to replace the broken one (since I will need to take it apart anyway) so I can potentially increase range? If yes, it would increase range, how long of an antenna should I make (between 5-12 inches)?Thank you,Tom
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  • Tom in NOVA June 11, 2009 at 11:37pm
    Sami. That's reassuring to know. Seems like a very good deal.
  • Tom in NOVA June 10, 2009 at 10:00am
    There seem to be some problems with the "higher end" version of this product line:

    http://www.rcmodelreviews.com/coronafhssissues.shtml
    Bugs in Corona/Turnigy FHSS 2.4GHz RC System
    Turnigh/Corona FHSS RC system pulled after RCModelReviews discovers critical bugs
  • Tom in NOVA June 8, 2009 at 6:03am
    Simon,

    I couldn't let go this option for this price and a chance to upgrade my gear while also gaining some more features. If I would have had to pay $200+ for this setup, would have waited until I had more invested. At this point, this was the best bang for the buck vs time available.
  • Simon June 8, 2009 at 5:52am
    Some of you may not have seen the review of the Turnigy/iMax9 Tx on http://www.rcmodelreviews.com/ - well worth a read !
    This site also has some excellent reviews / articles on other RC stuff - servos for example.

    What happened to the Futaba Tx conversion Tom?
    Radio Controled Model Reviews
    Radio Control news, reviews, tutorials and more. Everything for the RC model enthusiast
  • Tom in NOVA June 8, 2009 at 4:11am
    Earl. Thanks for the tip on the ground side connection.

    I just went 2.4 GHZ. Not really for the frequency, but for the price vs features this system above offers. It seems that Hobby King has the same set up as above for $30 instead of $60.
  • Earl June 7, 2009 at 11:13am
    I own a small wireless ISP that uses 2.4ghz. I have often thought of putting a reverse polarity sma connector on the rx and using a 7DB rubber duckie type of antenna. My RC stuff is 72mhz but I am thinking of going to 2.4g. Just keep the center antenna connection as short as possible. If you can, connect the ground side of the sma to the ground of the RX again as close to the connector as possible.
  • Tom in NOVA June 7, 2009 at 10:36am
    Sami,

    Thanks for the tip on HobbyKing. Seems to have some great deals.

    I assumed that the dual receivers would help eliminate singal loss or noise interference. Did yhou experience these problems wiht this set up?
  • Tom in NOVA June 6, 2009 at 12:18pm
    Thomas. Thanks for the post. It seems Endurance RC PCTx does exactly that, and for not a bad price. Will read more upon it.
  • Tom in NOVA June 6, 2009 at 11:01am
    I was just thinking, if this set up (with the software to adjust the transmitter residing on the computer) would be a good candidate for hacking the software and making it into a laptop/computer controlled remote UAV/airframe. The hacked software would communicate via the transmitter's USB link that is used for programming it, and data streaming in from the UIAV to a groundstation software plattform would be used to achieve not only real-time control of the UAV via the transmitter, but also real-time calibration, and error correction of the controls based on the particular airframe characteristics while in flight
  • Tom in NOVA June 6, 2009 at 10:53am
    Thanks all. I will replace with the same length, but try a little more flexible wire, and also will epoxy it in the opening of the housing to stop it from flexing.
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