Should SAMAA allow more than four 2.4ghz radios at one time

[Steve Smith]

1. 2.40ghz transmitters are approved for use at SAMAA registered fields.

2. The frequency control system of "Card/peg on" or "Card/Peg Off" will remain in force.

3. When not in use transmitters will be switched off and returned to the TX pound.

4. A maximum of four (4) 2.40ghz sets may be operated simultaneously.

Should this be changed?

[spacey]

In my opinion......YES

[marcdd]

YES YES YES
IMHO, SAMAA is a controlling body. They are not technical gurus - they don't/won't/haven't been involved in the designing/testing of the technology!

Scenarios with more than 4 x 2.4g radios have been tested time and time again by various manufactorers and distributors and there was nothing that showed any problems with a scenario like that.

I personally think that when the rumour of the "only 4 at one time" story came around, no-one really knew much about the stuff anyway. It is a complete load of bull that using more than 4 or 5 of these items would cause any problems - range, speed etc...!!!!....

It is theoretically possible that a LARGE amount of HIGH powered equipment (radios, wireless routers etc) that transmit at higher than 100mW could saturate the the band, but this would be pretty unlikely.

Marc

[Steve Smith]

I am very proud to say that I have taken half a leap and upgrading my 3810 to 2.4

[BEX]

Yes
That is the whole idea behind the 2.4Ghz systems isnt it? i have read into the isue on international RC forums before I changed to 2.4ghz, even though I fly mostly alone on a farm.
All 2.4 systems are not equal though , the Futaba sets work jump frequencies all the time , some are more simple in that they select a 2 unused frequencies on startup and use them both , even if there is inteference on one the other sti function perfectly.
The DX7 binds a RX to one spesific TX and even one specific program , the RX will not respond to signal from any other TX.

[helinoob]

what the hell, the hole idea of the 2.4ghz system is so that you can have more than 1, 4 at max thats just stupid, i use 2.4, theres a model match system so that every one can use 2.4 without a problem.

[Piet Le Roux]

I think that the  SAMAA policies on 2.4 GHz are completely out of touch. For practical reasons the ITU (International Telecommunication Union) has divided the world into different zones and regions  for management reasons and to insure that consumers can benefit form a bigger market base. We fall in the same region as Europe and our 35 MHz and 2.4 GHz equipment has the same specifications and should have a “CE” mark. In Europe the acceptable number of 2.4 GHz users, at one time, at the moment are ten and for this reason we have adapted our clubs safety rules to ten, if SAMAA is unhappy with this they would have to prove their point (this is more difficult that pushing it thru at the next AGM) The American specifications for 2.4 GHz differ from ours and their equipment is marked with a “FCC” mark. This bring us to the next question : will a FCC 2.4 GHz transmitter interfere with my CE receiver ? I personally see absolutely no reason that it will. In the FCC regulations it states at present that a 2.4 GHz transmitter can transmit up to 3 Watts of power into an antenna with a gain up to 10 dBi. This can give you an effective radiated power of  30 Watt. The regulation then becomes very technical but basically sets very hi standards that protects devices from interfering with adjacent devices. So it does not necessary  mean that these transmitters has the ability to transmit more power than the “CE” type because for one reason their battery life would be drastically less and it is not so. Both types has the same antenna so it can not have more gain so the big difference is that its not type approved in our region and is then technically illegal. The main concern to me is safety and as long as I have no reason to think that it will cause any problems I will not object to anyone flying with a FCC 2.4 GHz radio at my club in any case I am not employed by ICASA so they can enforce their own laws. I will however object to anyone using equipment on 36, 40,60 or 72 MHz because  they can experience interference that would endanger me, my equipment and anyone at the club.     

[ssr]

YES!!!!!!!!!!!!!
Change it to 20 or even better-- 100. Then we can safely attempt a world record at the flightline. Those samaa guys just tossed up a number that followed a "made up rumour". Who're they anyway?? Oh boy, let me go pay my samaa fees, I see they are due. LOL