john davidson 1 Posted August 21, 2021 Share Posted August 21, 2021 Following the debate on an Australian transmitter ( which has just been locked) I thought I would compare the out put of an Orange transmitter which I had been given as a freebie with my 3 year old DX6, surprised to find the Orange was about three times stronger. Has any one else similar experience? Does Orange do this to compensate for what I find to be poor range of their TXs Quote Link to comment Share on other sites More sharing options...
john davidson 1 Posted August 21, 2021 Author Share Posted August 21, 2021 Just remembered that the signal checker had a note to the effect that DSM2 appeared stronger than DSMX which would explain it! Quote Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted August 21, 2021 Share Posted August 21, 2021 DSM2 has not been legal to import into the EU since 2015. Also the early DSM2 Spektrum Dx6i's had the option to set the power output to EU or international, so maybe the Orange Tx had that option too. Never had a range issue with my Dx6i in EU power mode though. Quote Link to comment Share on other sites More sharing options...
Steve Colman Posted August 21, 2021 Share Posted August 21, 2021 My 12 year old Dx6i is still going strong too and never had a problem with it apart from a broken trim switch which seemed to be a common problem. Quote Link to comment Share on other sites More sharing options...
Martin Harris - Moderator Posted August 21, 2021 Share Posted August 21, 2021 No problem so far but please don't let this thread descend into a "mine's better than yours" slanging match or debate about legal matters. The law is the law and must be complied with. Valid technical information or observations only. Quote Link to comment Share on other sites More sharing options...
Peter Christy Posted August 22, 2021 Share Posted August 22, 2021 Signal strength checkers have little value with spread spectrum equipment. The information is transmitted in short bursts, and any field strength reading will be affected not only by the signal strength, but also the length of time of the burst. There are two main ways of meeting the current regulations (and I know this is an over-simplification, for the sake of example!). One is to "Listen Before Transmitting" - ie, check the channel is clear before transmitting a burst of information on it. The second is to restrict the length of time the transmitter is actually transmitting to 10% or less. Obviously, a transmitter transmitting for only 10% of the time will give a much lower strength reading than one transmitting more often - even if the actual transmitted signal strength is the same. Beware of applying 27/35 MHz thinking to 2.4 GHz! They are as different as chalk and cheese! -- Pete Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted August 22, 2021 Share Posted August 22, 2021 22 hours ago, john davidson 1 said: Just remembered that the signal checker had a note to the effect that DSM2 appeared stronger than DSMX which would explain it! As " Range " is of interest to you John, you should delve deeper into radio operation. Something for you to conjure with, the receiver probably plays a big or bigger part in " range " at the field, than our transmitters. Quote Link to comment Share on other sites More sharing options...
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