Shop our Airplanes Products Drone Products Sales
Thread Tools
Nov 18, 2012, 09:25 PM
Registered User
Discussion

Best radio for a sub?


It seems 72MHz is not that good and 2.4 is even worse, what gives the best range for this application?
Sign up now
to remove ads between posts
Nov 18, 2012, 09:36 PM
Registered User
72MHz is not good because it is reserved for aircraft.

75MHz is what most use here in the USA. Reserved for surface use.
Submarines are considered surface use.

2.4GHz does not work because the signal does not penetrate the water more than a few inches if at all. It's reflected.

The issue is that the 75MHz & 72MHz radios and receivers are being phased out here for the 2.4GHz. We can still get 75MHz receivers made in Canada. New transmitters are becoming harder to find.
Nov 19, 2012, 12:52 AM
Shanghai'd Expat
herrmill's Avatar
WFly still makes them & you'll find several in the States selling with Sub Driver offering the best price. I have one & can recommend the brand.

http://www.sub-driver.com/electronic...receivers.html
http://www.nacrc.com/wfly-wft08s-24g...ion-p-787.html

Here's a link to the WFT08 manual:

http://www.moonrakers.com/submarines/WFT08manual.pdf
Nov 19, 2012, 08:01 AM
Registered User
I use an old Futaba 8u. The great thing about it was that it was cheap because it was "old" technology, and it allows the usage of rf modules. This allows the entire rf section to be removed and replaced with 72MHz, 75MHz, or your favorite 2.4GHz flavor.

On a side note, it is sad to me that so many of these radios cost so much. There really is not all that much that goes into them. The programming is not terribly complicated. I know that there are some open source efforts out there as well.

Adam
Nov 19, 2012, 08:34 AM
Registered User
At one time I used an AM Futaba that worked great but I sold it with the sub. Currently use a HiTec.
Nov 19, 2012, 09:35 AM
Registered User
what is the best range you guys get on your radios with depth and distance?
Last edited by Eddy; Nov 19, 2012 at 01:14 PM.
Nov 19, 2012, 12:57 PM
Registered User
30ft (or more) in depth and to where I can't see it. (see end)

Disney Nautilus RC Submarine (2 min 14 sec)
Nov 22, 2012, 10:31 AM
Registered User
Once it fully submerges, there is only danger in running deeper.
Nov 23, 2012, 06:28 PM
Vi ne donu ĝin
coriolan's Avatar
Quote:
Originally Posted by Cliff Hanger
72MHz is not good because it is reserved for aircraft.

75MHz is what most use here in the USA. Reserved for surface use.
Submarines are considered surface use.

2.4GHz does not work because the signal does not penetrate the water more than a few inches if at all. It's reflected.

The issue is that the 75MHz & 72MHz radios and receivers are being phased out here for the 2.4GHz. We can still get 75MHz receivers made in Canada. New transmitters are becoming harder to find.
The SombraLabs SL-8 can be programmed to any 75 Mhz channel(as well as 72), as for the Tx you can use a Futaba/Hitec module based model like Futaba 9C or Hitec Eclipse-7 with a 75 Mhz surface module(still available as new or used):
http://www.sombralabs.com/store/prod...roductid=16143
There is two SL-7 for sale right now in the W/FS forum:
https://www.rcgroups.com/forums/show....php?t=1772577
Last edited by coriolan; Nov 23, 2012 at 06:39 PM. Reason: add link
Nov 23, 2012, 10:39 PM
Registered User
what about 35 mhz
Nov 30, 2012, 04:28 PM
Registered User
Quote:
Originally Posted by philong2005
what about 35 mhz
No problems! I have a 40 mHz (MPX MC 3030) wthout any problems.

Christophe


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Best Radio Tx Rx for S800? Volandos Multirotor Drone Talk 2 Feb 19, 2013 04:24 PM
Discussion What is the best radio system for professional use Videographia.it Radios 12 Aug 06, 2012 02:24 PM
Question What is the best Radio to use for FPV? easystarfpv4 FPV Talk 12 Apr 27, 2012 09:06 AM
Question best radio for around 400 bucks VENOMiTry Electric Plane Talk 21 Mar 31, 2012 12:38 AM
Discussion Dare I?: Best sub $500 radio? Grips Multirotor Drone Talk 43 Sep 28, 2011 12:58 PM