Model Boat Mayhem

Technical, Techniques, Hints, and Tips => Radio Equipment => Topic started by: spooksgone on August 23, 2017, 09:53:35 am

Title: 2.4gh radio aerials - may be a silly question, but!
Post by: spooksgone on August 23, 2017, 09:53:35 am

Hi all. I have just purchased my first 2.4gh radio, slowly moving with the times! The rx has two aerials, do I have to extend these little things? And where is the best place to position them in the boat? Any help would be great. Thank you for looking.
Regards
Phil

Title: Re: may be a silly question, but!
Post by: Tug-Kenny RIP on August 23, 2017, 09:56:24 am

NO you do not extend the aerials, but it is advisable to locate the receiver high up in the boat.

Cheers

ken

Title: Re: 2.4gh radio aerials - may be a silly question, but!
Post by: kinmel on August 23, 2017, 10:52:22 am

vertically, at a right angle to each other in a "V".

Title: Re: 2.4gh radio aerials - may be a silly question, but!
Post by: spooksgone on August 23, 2017, 12:25:27 pm

Thanks for the swift replies guys. Thank you very much.
Regards
Phil

Title: Re: 2.4gh radio aerials - may be a silly question, but!
Post by: steamboat66 on August 23, 2017, 06:02:39 pm

2.4 GHz is vulnerable to being blocked by moisture, keep the antennae high up, and away from high current wires. don't forget the fresnel effect, even with no blockage, the signal will be poor after a certain range. this shouldn't be to bad at the short range used with boats, but should be remembered .

Title: Re: 2.4gh radio aerials - may be a silly question, but!
Post by: Bob K on August 23, 2017, 08:35:39 pm

I get at least 250 meters range from my Planet 2.4 systems, the width of our lake.  No problem if you mount the Rx vertically high in the plastic/ply superstructure, and well away from power leads, ESC's etc.

2.4 does not work under water.  Even close to the waterline can reduce range or cause reliability issues. 
For my semi-submersible I am obliged to use 40 MHz.