Can someone suggest a really cheap 3 or 4 channel RC Tx and Rx set for a submarine / boat?

I am scratchbuilding a submarine and need it to control the Diveplanes, The Rudder and the Motor.

The range has to be between 50 to 100 metres and should be able to control 3 mini servos.

I am an absolute beginner as far as RC is concerned. Please HELP!!!

Regards,

VC

Seniors! Do the regular FM/2.4GHz  work for submarines ? From my electronics I know that you use ULF (Ultra Low frequency) for transmission to underground (caves/mines) and submarines. In the Movie 'Crimson Tide" they raised a ULF Antenna buoy to receive message from their command center.

I guess VC needs some expert advice.

I am not an expert in Subs. However, I think if you want RF to penetrate water and travel a long distance you need to use low frequency. Water has a tendency to absorb higher freqs. Obviously, 2.4 GHz might not be a good choice. I would recommend the FM sets.

-Ismail

I have a 3 ch coaxial heli 27mhz. The main battery of the heli is not charging now, I am willing to let the entire thing go for Rs.1500/- with the receiver and Transmitter don't know if it will be able to control the servos. see pics

Thanks
Amit

Thanks Everybody, for all the help and suggestions. I'm learning fast!

Quote from: Hellyflyer on November 24, 2009, 12:11:44 AM
I have a 3 ch coaxial heli 27mhz. The main battery of the heli is not charging now, I am willing to let the entire thing go for Rs.1500/- with the receiver and Transmitter don't know if it will be able to control the servos. see pics.

Thanks
Amit

vc don't even think of buying this.Reason? i have two of these(had 2 rather) . i wasted one trying to use the receiver/transmitter combo from the heli.All u get is a toy circuit board in it (no plug in type  receiver with channel for servos motors etc  ). hence it will be really difficult for u to use it for your submarine. you will have a hard time to find out which is what in these Chinese toys. even the wattage of the receiver is less i learnt in some forums.
The transmitter is not bad though . if u buy a 27mhz receiver somewhere may be u could use them.
(hellyflyer i have nothing against you! no offense meant)

Thanks Amulu.

You saved me a lot of trouble. Hellyflyer was only trying to help me, I am sure he will not be offended. Both of you are trying to help me and I appreciate your efforts.

Thanks to both of you.

Cheers!

VC

http://rotor.co.in/show-detail.asp?prodid={E69B3351-F427-4B33-8900-AD604A2EA758}&pn=1

i think this is what your are looking for..its available with rotor chennai. you get transmitter,reciever, 2 hs-55servo(mini 9 gram) /four HS-311 servos .

it costs rs4800 for hs-55/rs5300 for 4 hs-311 servos .29mhz

Quote
Laser 4 Remote Control, HS-55 Servo x 3pcs, HFS-06MT Receiver dry cell. 29mHz, supply Mode 2, unless special request for mode 1.
Product Code : [Laser4 w/HS55]
Laser 4 Laser 4 FM Radio System
Introducing the all new Laser 4 FM radio system from Hitec RCD. This reliable, value packed radio was created to replace the soon to be discontinued Focus 4 radio. As you may expect, we loaded this new radio system with great features likes Elevon and V-tail mixing and LED battery indicator.

Laser 4 FM Features
4 channel, FM transmitter, All channel servo reversing, ATV on ch. 1 and 2, Ch. 1 and 2 "elevon?mixing option, Ch. 2 and 4 "v-tail?mixing option, 5 LED power meter, Trainer switch, New ergonomic case

Laser 4 FM HS55
Hfs06Mt 5 ch. receiver, two HS-55 servos, Dry cell

combo with bigger servos +2 servos nos more
http://rotor.co.in/show-detail.asp?prodid={DA6F870E-9236-49D3-B6CB-345BAE0D799A}&pn=1

Quote
Laser 4 HS311x4pcs. HFS-06MT Receiver 29mHz, supply Mode 2, unless special request for mode 1.
Product Code : [Laser4 w/HS311]

Laser 4 FM Radio System
Introducing the all new Laser 4 FM radio system from Hitec RCD. This reliable, value packed radio was created to replace the soon to be discontinued Focus 4 radio. As you may expect, we loaded this new radio system with great features likes Elevon and V-tail mixing and LED battery indicator.

Laser 4 FM Features
4 channel, FM transmitter, All channel servo reversing, ATV on ch. 1 and 2, Ch. 1 and 2 "elevon?mixing option, Ch. 2 and 4 "v-tail mixing option, 5 LED power meter, Trainer switch.

Laser 4 FM Standard
HFS06MT6 ch. receiver, four HS-311 servos, dry cell

NOTE: Receiver HFS06MT, only supply in 29mHz

Amulu,

I have 2 options.

1. An extremely kind hearted person has donated me a Futaba 5channel FPT5UAF Transmitter. He says I will have to buy a Tx Module, a Receiver, an ESC (RCFORALL ESC 20 A?) for my Type 500 motor and the 3 servos for the submarine. Can you guide me on this? How much will all this cost me? Where do I get it - especially the Tx Module?

2. I am getting a dirt cheap Chinese/Taiwanese 4 ch Tx + Rx + 3 Servo set (throwaway price - I guess I AM lucky) from a destroyed Heli.

What are your views on this? I will appreciate any help or suggestion that you may have. Just remember that you are talking to an idiot as far as RC is concerned. Keep it simple!

Sms or give me a missed call if it is convenient to talk now. (11.32pm) I see that you are online.........

Cheers!

VC 098640 33027/ 098540 90999

Quote from: VC on November 24, 2009, 11:10:31 PM
Amulu,

I have 2 options.

1. An extremely kind hearted person has donated me a Futaba 5channel FPT5UAF Transmitter. He says I will have to buy a Tx Module, a Receiver, an ESC (RCFORALL ESC 20 A?) for my Type 500 motor and the 3 servos for the submarine. Can you guide me on this? How much will all this cost me? Where do I get it - especially the Tx Module?

2. I am getting a dirt cheap Chinese/Taiwanese 4 ch Tx + Rx + 3 Servo set (throwaway price - I guess I AM lucky) from a destroyed Heli.

What are your views on this? I will appreciate any help or suggestion that you may have. Just remember that you are talking to an idiot as far as RC is concerned. Keep it simple!

Sms or give me a missed call if it is convenient to talk now. (11.32pm) I see that you are online.........

Cheers!

VC 098640 33027/ 098540 90999

well i am no expert. but  from experience i say chuck the 2nd option if the heli is similar to the one posted earlier in the thread. its not worth all the trouble( considering its toy grade heli as well). if its a hobby grade and if u get a normal receiver with 4 channels to plug in servos then go for it
 
about the 1st option i think it seems good option.i dont know where to get the module as such.From a Google search i see that its a 72mhz radio so it wont be that hard to get. contact rcforall.in or rcdhamaka.com or rotor Chennai then might have them in stock
price wise i think a mini servo will cost u 500rs, rest depends on the product.
Again i am beginner like u but i have gone the trouble searching for stuff when i was in your position a few months ago.I think seniors in this forum can better help you about the module and the price details.

No Offence taken you guys  ,

Cheers

Amit

hi,

I have a walkera 6ch tx and rx and can control 3 seperate servos .

So if you are interested let me know.

What is the condition ? How much do you want for it?