How To Adapt The 'New' 2.4gHz Gear To R/C Submarines

[Davidh]

Hi David and Bob.

Yes I admit The Tx was right on the side of the pool and probably about half a meter from the cylinder. I then pushed the cylinder half a meter down, tip of antenna in a piece of foam floating. Walked to other side of pool and tested, Works really well, Thankyou David for writing up the instructions. Bob I remember you mentioned a while back that when your boat dips beneath PD you hardly notice and have solid reception. I am really looking forward to seeing how this runs in U 23 early next year and excited about the extra functionality of the receiver, ( dialing in failsafe functions).

Dave H

[coryhenry]

Well, I have been having issues with my 75mHz Kilo and it prevented me from running for multiple meets. I decided to try 2.4 and I have to say I really like it. I have no issues with control from very long distances and I even get control from 20m away a couple of centimeters under the surface. The boat has a slightly positive buoyancy anyway so I think its an ideal solution.

[redboat219]

Cory,

Are you using a stock 2.4gHz rx or one that has been modifified?

[coryhenry]

I took the stock receiver and removed one antenna and replaced with a long coax as detailed in the instructions. It worked perfectly. Here is the link to the transmitter and receiver.

https://hobbyking.com/en_us/turnigy-...-receiver.html

Here is the type of cable I used;
Mini RG59 Coax Cable - BC- Black - Per FT SKU: 80-523-910 BK from showmecables

The wire was a little thicker than I thought but worked very well.

[redboat219]

Option for extending the antennae coaxial cable from the receiver.

[cheapsub]

If anyone need help, soldering a long extension antenna. I can help. PM me.

[Conca6368]

Is it possible to run deeper than periscope depth using a similar set up or are we limited to surface running?
I've got a Thunder Tiger neptune sb-1 submarine with a different camera to the original which I have the aerial extended on a tether to the surface.
Could I do the same with 2.4ghz aerial?

[rwtdiver]

QUESTION:

Will this Coaxial Cable work for the 2.4 MHz Receiver?

https://www.amazon.com/Uxcell-a15060400ux0392-RG178-Coaxial-Adapter/dp/B012T1WYLK/ref=sr_1_3?crid=1CDLQZEUMJQ03&keywords=rg178+coax+cable+diameter

Thank you for the input.

Rob
"Firemen can stand the heat."

[QuarterMaster]

QUESTION:

Will this Coaxial Cable work for the 2.4 MHz Receiver?

https://www.amazon.com/Uxcell-a15060...cable+diameter

Thank you for the input.

Rob
"Firemen can stand the heat."

Rob,
RG178 is RG178 is RG178.

Bob has in stock ready to go with IP adaptor (s/b on the RX board).

[rwtdiver]

Rob,
RG178 is RG178 is RG178.

Bob has in stock ready to go with IP adaptor (s/b on the RX board).

Hi Ed,

Thanks for chiming in!





My receivers do not have that IP adaptor, They are soldered. So I could not use the ones that Bob has. But it sounds like the RG178 coaxial cable I have coming will work!

Thanks again for the advice Ed!

Rob
"Firemen can stand the heat."

[rwtdiver]

The photo below shows how my 2.4 MHz receiver antenna is set up.



The below photo shows how David M. explained how to do the coaxial cable for the 2.4 MHz antenna.



My question would be? Is there any reason I need to solder a 3/16" piece of tubing to my new antenna install, or can I just follow what David M. has laid out?

Rob
"Firemen can stand the heat."

[cheapsub]

Remove the tube, do as Dave did, to keep the antenna upright.
This is what I have.
up to more than meter long.
Sorry is from China
if you are nuts like me , always could add a button on the rx, side way pins too.

https://www.aliexpress.com/item/1985198930.html

[rwtdiver]

cheapsub. Thank you photo and the link and your input!

My 4 channel 2.4 MHz Radio came with (6) RX (receivers) just like the photos below!





They do NOT have the button adaptor on the receivers. My new coaxial cable will be soldered in the same way at the receiver as per top photo.I was hoping David M. might chime in on this! For now I am going to do the antenna tip (no brass tubing) the same way that Davids photo shows.

I think we have beet this subject matter enough, and I need to get going on it! We will know if I am right or wrong by testing!!!

Rob
"Firemen can stand the heat."

[neitosub]

Hi Rob,

Out of curiosity, is the brass tube glued to the antenna? I wonder what its purpose is.

Nate

[redboat219]

Out of curiosity, is the brass tube glued to the antenna? I wonder what its purpose is.

Nate

https://martybugs.net/wireless/rubberducky.cgi