Thread: Yippee! Aussie FPV thread... :)
View Single Post
Old Aug 12, 2010, 11:35 AM
nathan089 is offline
Find More Posts by nathan089
Registered User
Joined Mar 2010
122 Posts
Originally Posted by stergiopilus View Post
What receiver are you using to get 4KM with your x2610? And have you modded the x2610 at all?

I upgraded to the DX7, and still have the x2610 sitting in a box here. Now that I want to get into FPV, i'm thinking of pulling the x2610 out and giving it a go. Not happy with the receiver i've got (RS77S). I got a lot of gliches with that, even when flying only 50m away, so thinking of getting a corona one (RP6D1).

i am deffinately no expert on the topic but i will give you the info i believe is correct.

As with all frequencies there are corrosponding wave lengths. In the case of the 36mhz wave length there are 1.01m, 2.02m (1/4 wave length) and 4.04m (1/2 wave length)

once again i am not sure of the physics but by exactly matching the desired wave length you can dramaticaly increase the sensitivity of your receiver/range.

I generally let the antenna just dangle from the rear of my plane.

I am not 100% sure.. but i think IBCRAZY might be able to supply some more factuale info (he seems to be a bit of a guru at RF and antennas)

Having said all this i sincerely believe that by simply extending you rx antenna you will be remarkably impressed by the results.

a peice of warning however (this is third or fourth hand info) some rc RX;s have a "coil" built into the RX which is meant to compensate for the shorter RX antenna.. I have heard in some cases that this must be bypassed for the extension to work properly but in the case of the coronna 9ch i can deffinately vouch for the antenna mod.

I was previously acheiving 1.5 - 2 km and am now acheiving easily 4km without any gliches (my setup is a little too heavy and i do not have enough battery power to get any further safely) but i have often heard of reports of 10-15km with the antenna mod of 4.04m

as far as i know it does not matter the type of wire you use to extend you antenna, but i believe a safe way to be sure is to closely match the existing wire.

How can you loose ... it costs maybe $4 to buy cable and maybe 10 mins and a soldering iron to extend it.

I understand my explanation is a little unclear but i really hope i can save everyone some money and time as i have for myself.


nathan089 is offline Find More Posts by nathan089
Reply With Quote