Hi all,

My Honey Bee V2 FPis a 2.4ghz model, using the eSky 4-in-1 controller. It came with a one point fiveinch antenna wire which has subsequently come off. I feel confident in taking it apart and resoldering a wire, but should Ibother, and if so,how long a wire should Iattach?

1)don't really need one on a 2.4ghz
2)same length as before (about 1.5 inches)
3)longer (tell me how long please)

Thanks!

The reciever is tuned to the antenna length, the replaced antenna MUST be exactly the same lenght.
This is true for 72mhg and 2.4G or any other type of transmitter. Dont forget that the 2.4G units talk both ways meaning that teh RX is also a TX.
If you change to a different length and the fact that 2.4G radios talk both ways it will fry the reciever..
Hope this helps

Ron Sr

As already said the antenna length must be the correct length so it is tuned for this (your radio system`s) frequency.
If you alter the length then it is no longer tuned so it lacks performance. In simpler words a longer antenna will do harm.

In fact for a 2.4Ghz system the tolerance is lower than a millimeter... for the such a low length antenna an Rx has.

If Iremember right it must be either 30 or 31mm (I don`t remember exactly but I think the correct is the 31mm), including the soldering point (and keep the soldering as less as it can be).
You can`t go wrong with 31mm though.

After you solder it then apply some silicone adhesive/sealant and let it dry. Do not use hot glue though.

Insanely helpful. Thank you! Iwould never have realized that 1mm makes so much difference.

Imay photograph the opened 4 in 1 and post the pic with a big photoshop arrow pointing to where I think the antenna wire attaches.

Does it matter what wire Iuse?Ihave some wire in my toolbox that looks about the same gauge.

Thanks as always!

The gauge is not as critical as the length, as long as the insulation is single layer and not sheilded you will be fine, and yes 1mm will make a differance but not a fatal one.
However the previous post is not correct in saying that a longer antenna will do no harm.
If the 2.4G was a RX only this would be true but the 2.4G RX is also a TX in that is how it talks to the TX to bind each time you turn it on. The frequency is the total size of the radio wave IE a 2 meter band radio uses a wave that is 2 meters tall. Yes radio waves are that big. A radio antenna is an exact fraction of the wave height, if it is changed the recieve and transmit capability of the radio will be lessened, to short or long will cause problems in the transmit circuts, overheating them and frying the IC.
Hope all this helps understand why the antenna length is critical.

Ron Sr

Again, thank you for the help. Icertainly appreicate it.

You mention the RX 'binding' with the TX upon powering up both RX and TX. Iget it, but here's my question:Can Ibind one radio to two RX units? Ihave an eSky Honey Bee FPand an eSky Honey Bee V2 FP - both share what looks to be exactly the same 4 in 1.

I'm sure this is possible, seeing as you can buy the 4 in 1 separate from a controller.

It looks like there is a tiny switch on the 4 in 1, but it's function is not documented. Isuspect that it is used for the 'binding' process to a controller.

Oh, and could someone give me the correct terminology for what Ithink of as the controller?Ihave heard it called the "TX", the "Radio", and the "Controller".

Thanks in advance.




Cake

I have not heard of anyone binding more than one RX to an ESKY radio
. I do not know that you can not bind two for seperate uses so give it a try it can not hurt anything and we will all learn something.
I also do not know what teh switch dose.

Ron Sr

You may try uploading a photo. Imyself have a Big Lama so the Rx differs but Imay be able to tell which is the antenna soldering point.
I may delay to post back though.


Yes it is doable.
You can bind one Tx (transmitter) to any compatible Esky Rx (receiver).
The procedure to bind a Tx to an Rx is described here:http://www.rcuniverse.com/forum/fb.asp?m=9900614

You can`t do the opposite though. To have bound and working (be active) more than one Tx to an Rx. Only one will be active. The one it was last bound to it.
But if you need to bind again a Tx that was previously bound to the Rx then you can do it normally, it does not matter if it was previously bound or not, only that this will be working (as said the last that was bound is only active ).

Ihope you make a point out of all these as my English is not perfect.

I have a Dauphin with 2.4 GHZ and the antenna has completely broken off. Been flying with no Antenna for about two weeks now.

Those antennas come off so easily. Try not to keep bending it if you can.