Poll

Is 2.4ghz transmitters the answer

Yes
 10 (100%)
No
 0 (0%)
HUH?
 0 (0%)

Total Members Voted: 5

Author Topic: 2.4Ghz Radio  (Read 1860 times)

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Offline Steve Smith

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2.4Ghz Radio
« on: January 08, 2008, 06:00:19 pm »
What do you think of the new 2.4Ghz radios?
Steve Smith
Steve@thesmithfamily.co.za

Pylon1

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Re: 2.4Ghz Radio
« Reply #1 on: January 09, 2008, 07:03:30 am »
2.4 Ghz is the way to go in the future, It just needs a bit more time for all the teething problems to be sorted out, I think it is almost there.


Offline Steve Smith

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Re: 2.4Ghz Radio
« Reply #2 on: January 09, 2008, 07:26:15 am »
I heard that there is a limit of the amount of guys that can use it at the same time, how true is this?
Steve Smith
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Pylon1

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Re: 2.4Ghz Radio
« Reply #3 on: January 09, 2008, 09:40:07 am »
80 Spots are usable on the 2.4 GHZ band but according to the SAMAA operations manual only;
"A maximum of four (4) 2.40ghz sets may be operated simultaneously"

Offline Steve Smith

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Re: 2.4Ghz Radio
« Reply #4 on: January 09, 2008, 02:31:32 pm »
But that is crazy, at Nerf, there are more than 4 guys flying at the same time and more and more 2.4 radios are showing up
Steve Smith
Steve@thesmithfamily.co.za

WGReeler

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Re: 2.4Ghz Radio
« Reply #5 on: January 09, 2008, 06:56:28 pm »
I found the following comment from Futaba.  As the radios operate in spread spectrum mode I believe the limit could be so high.
*****************************
We are pleased to announce that we will be releasing a new product in the near future that will allow you to upgrade you exiting Futaba, JR, and Hitec radio systems to 2.4GHz.

Our system replaces the existing transmitter RF module and includes a brand new receiver.

This is a professional upgrade, not a park flyer upgrade. Our system offers up to 5 miles of range, no frequency conflicts, the ability to have up to 390,000 people flying at the same time, and gives you the option of having telemetry data.

Information and pictures of the prototype units are on our website.

http://www.xtremepowersystems.net/xtremelink.php
*****************************************


Offline Steve Smith

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Re: 2.4Ghz Radio
« Reply #6 on: January 10, 2008, 02:21:55 pm »
390 000 people might be allowed to fly at the same time but not according to SAMAA

ADDENDUM 2 TO SAMAA PROCEDURE PR 8 (SAMAA OPERATIONS MANUAL)

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.

5. This radio equipment may only be used with Shock Flyers, Park Flyers and Electric Micro Helicopters.

6. Any of the model aircraft types specified in (5) fitted with this equipment should not operate at a distance of more than 300 metres from the pilot when flying at a SAMAA registered field.

NOTE. These are provisional rules only and may change, as and when the equipment in question is in use and other limitations, if any, are found.

For the frequency control board at the clubs, the suggestion is that a sticker be made in Green and marked "Spread Spectrum". This sticker will cover pegs on the frequency board and could be applied over some of the now extinct 60mHz frequency spots.
Steve Smith
Steve@thesmithfamily.co.za

Vortex

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Re: 2.4Ghz Radio
« Reply #7 on: March 04, 2008, 08:00:40 am »
I LOVE 2.4ghz Spread spektrum technology. (Cheque please, Horizon Hobby's). I used to fly 35mhz and I had more than one occasion where a unexplained glitch would make my heart jump,uninvited, into my Throat. Quick pulse check, bring heli back to earth and investigate possible causes.

The last time it happend I had just come out of a stall turn and on the fly by, directly in front of me, she glitched, full negative pitch....... Phwump!!!!  Now, I know that this is more attributed to electrical interference, created by the heli itself, than by somebody else sharing the same frequency as me. But since I have changed to DSM2, I have not had one instance where the helicopter does something wierd, that and the added confidence that due to the benefits of Frequency channel hopping, Dual receiver redundancy and Tx/ Rx model binding, makes for a more relaxing flight. Especially when those blades are rotating at 2000 rpm and u have spectators standing around.