#20 11 years ago

2.4gig Radio and brushed motors???

Haverlock. I've bought a stock of servo extension leads to move the RX away from other bits. The boat in question now has RX in the superstructure so its above other components. An added thought is that the transmitter was laid on a concrete plynth about 3' above and 6' back from the lake, so signal could have been masked if you use line of sight. Tested same boat last night on the other lake I use. All's fine.

#19 11 years ago

2.4gig Radio and brushed motors???

Derek

As a rule of thumb put as much distance as possible twixt Rx and esc.

Have you ever had a taxi/police break through on a tv/amplifier?

Your esc puts out quite a bit of "noise" on radio frequencies, if the level is high enough it can swamp a Rx.

Since the received amplitude of a signal follows an inverse square law ( double distance one quarter of radiated amplitude) the greater the distance the more chance your RX rejecting the signal.

Believe it or not even your servo leads and power leads can all act as aerials so rout as many of them as possible away from your ESC.

"that's not a bug its just an undocumented creature."

Sir Terence David John "Terry" Pratchett, OBE (28 April 1948 - 12 March 2015)

Liked by RNinMunich

#18 11 years ago

2.4gig Radio and brushed motors???

I have 27 and 2.4 and I swap them at random. I only have brushed models and have never had any problem at all. I would agree that the 2.4 rx needs to be as high up and def above the waterline to be effective. Too many not knowitalls around. Stick with your planet. Most of them prob have really expensive 27/40 gear and are p*^^#d off that you can do what they can for only a few quid!!!! 🕊

#17 11 years ago

2.4gig Radio and brushed motors???

I agree with you, olden, we get them round our pond. Know alls, know nothing. I'm trying to keep this clean,: angry:. they are the kind that give the hobby a bad name. This is may just my opinion.
Regards Dave

#16 11 years ago

2.4gig Radio and brushed motors???

HI Oldtimer
Suggest next time you see the prats who laughed at you, that you guide them to this website where they might learn something.
I really cant believe this happened to you, any decent member of our community would never have treated you in such a disgusting way.
Personally I run 4 boats on 3 x Planet 2.4g Transmitters all with brushed motors which all came from old cordless power tools and never had any problems.
I also sell via eBay Model boat motor fitting kits.
Kind regards
John 😀

Liked by RNinMunich

#15 11 years ago

2.4gig Radio and brushed motors???

Hello Jarvo & Haverlock. I had been googling before I read latest due to a problem I had yesterday. You're correct about ariel length, I wasn't thinking... (Car Ariel's had to be 39"), but that's off topic. One of my boats shot off on its own, hit the concrete and flipped.
The reciver is directly above the motor and alongside the speed controller. Never had this issue with an Electronize . But now have a solid state type. Last week had similar issue with same boat, but only went a few yards.
Should have been a warning.
Time for a refit.

#14 11 years ago

2.4gig Radio and brushed motors???

If I may just add to Haverlock's post which sets out the position re aerial length quite correctly, the installation and use of 2.4Ghz has to be such that there is a clear line of sight between the TX and Rx any obstruction will reduce the signal strength. I have sets that report on the received signal strength that confirm this and people, obstacles and other boats between the Tx and Rx can reduce the signal.
I see many Tx aerials pointing straight up when in fact the max transmitted signal is from 90deg to the aerial so putting the aerial parallel to the Tx gives a better signal. However not all sets have adjustable aerials and are designed to work just as well.

I used to fly model planes and used full spec Futaba equipment as distance in the sky can be misleading and whilst you may be able to see the model the distance may be greater than some reduced range sets can achieve.
Dave

Live long and prosper

Dave

#13 11 years ago

2.4gig Radio and brushed motors???

avenger wrote

"I have found that the range sometimes isn't as good as 27 & 40', no doubt down to receiver ariel length."

Sorry aerial length is a function of the frequency. in the case of 2.5GHz a half wave is 2.2464 inches.

A longer wire would not be of any help!!!!

That's why 27,35, and 40 MHz all gave importance to not cutting the aerial wire.

An aerial of the correct length gives the best reception. in the same way you choose the right drill for tapping a hole the aerial length is based upon strict criteria.

"that's not a bug its just an undocumented creature."

Sir Terence David John "Terry" Pratchett, OBE (28 April 1948 - 12 March 2015)

#12 11 years ago

2.4gig Radio and brushed motors???

ohhhh while I think on it

You can use lead acid and nimh with brushless motors just make sure your esc can handle it!

I KNOW your running brushed now but given time you will I expect want to try brushless. To give you an idea of their usefulness the fan on your computer uses a brushless as does your hard drive. Consider the amount of use they both get and just keep on keeping on.

"that's not a bug its just an undocumented creature."

Sir Terence David John "Terry" Pratchett, OBE (28 April 1948 - 12 March 2015)

#11 11 years ago

2.4gig Radio and brushed motors???

Give us a chance and I am sure we will extract the urine with great glee ~~laughs~~

Other that that happy to help

"that's not a bug its just an undocumented creature."

Sir Terence David John "Terry" Pratchett, OBE (28 April 1948 - 12 March 2015)

Liked by RNinMunich

#10 11 years ago

2.4gig Radio and brushed motors???

A massive "THANK YOU" to all the boaters who responded to my cry for help with 2.4 and brushed motors. Clearly, you guys know much more than those who I thought, were 'in the know'!!! it is brilliant to be able to seek advice without first having to have the 'proverbial' taken and then to be given the 'wrong' advice!!!

Thanks again.

Cheers

#9 11 years ago

2.4gig Radio and brushed motors???

The more I read this thread the more convinced I am that buying a planet Tx/Rx was a good move!!!

I have returned to making models and am happy I did!

My planet 7 seems like an excellent deal.

"that's not a bug its just an undocumented creature."

Sir Terence David John "Terry" Pratchett, OBE (28 April 1948 - 12 March 2015)

#8 11 years ago

2.4gig Radio and brushed motors???

I have a Planet 5 with brushed motors and the vessel works fine. Have also tried both with and without suppressors, found no discernible difference in performance.
Was somewhat wary of limited Planet 5 range, but as have found that is about as far as I can see anyway it works fine.

#7 11 years ago

2.4gig Radio and brushed motors???

Avenger
Posible your range problem is down to severeal factors, like Dave M said, when changing a model from 27meg to 2.4ghz move the high power wireing to the opposit side of the boat, try to get the antenna as high as possible, above any blanking items in the hull, ie batteries or any carbon fiber, if your reciever has 2 ariels they need to be about 90 split, not together. I have found range to be almost out of site, the model just a blob on the water. Remember modern servos can be power hungry, keep your batteries well charged, low power or surges of power demand can cause drop out of the reciever. I use 6volt NmHI 3000ma sub c cell packs, separate from the drive motor batteries.
Mark

Etherow Model Boat Club

#6 11 years ago

2.4gig Radio and brushed motors???

I have found that the range sometimes isn't as good as 27 & 40', no doubt down to receiver ariel length.
I simply unplugged my 27/40 receivers and fitted 2.4, without issues beyond setting rotation etc.
The main thing to think of when buying into 2.4 sets is, the cost of extra recevers. For example I have 2 Spectrum sets that can store settings for 10 models in each. The genuine recevers are not cheap. However compatible non genuine types are around £5.
They are well worth the investment.
Derek

#5 11 years ago

2.4gig Radio and brushed motors???

I agree with all the advice given but would add that you do need to keep the radio wiring as far away as possible from the high current motor wires. Also your aerial does need to be above the waterline and not shielded by batteries etc.
Your 2.4 Ghz set will be just as reliable as any other RC gear you have used but do make sure you switch the Tx on first and off last. The Rx does take a few seconds to set itself up at each switch on so its a good idea to see if the rudder is working before moving the throttle stick.
Dave

Live long and prosper

Dave

#4 11 years ago

2.4gig Radio and brushed motors???

HI Oldtimer

This sounds like going for a long stand or 20' of shore line.

Suppress your new motors as you would for 27meg, dont listen to the barrack room know alls.

I use a cheap Radio link 6 channel and a Futaba T6j some of my boats have suppressors some dont, no interferance at all

Regards

Mark

Etherow Model Boat Club

#3 11 years ago

2.4gig Radio and brushed motors???

I agree with your post Dave!!! ( what a surprise ~~laughs~~)

Some brushed esc units can have problems with some 2.4gHz receivers older models usually, but any modern esc will work fine.

"that's not a bug its just an undocumented creature."

Sir Terence David John "Terry" Pratchett, OBE (28 April 1948 - 12 March 2015)

#2 11 years ago

2.4gig Radio and brushed motors???

Hi
2.4 is compatible with brush and brushless, l use both, and my radio is a planet 5. I think they are pulling some part of your anatomy 😱 . But you will have to put capacitors on your motors. l hope this helps
Regards Dave

#1 11 years ago

2.4gig Radio and brushed motors???

Dear All,

As a stalwart of the dinosaur era, I have always used 27meg but recently I unexpectedly found myself making a purchase of some 2.4gig radio gear. Having read in many publications how good 2.4 is; not having to worry about peg boards, interference and the like, it seemed to be the answer. Glowing with the joy of my new purchase I spoke to 'some chaps' who are far more knowledgeable than I. I was not expecting the stifled sniggers and cries of 'Muppet!!!' As the embarrassment and mickey taking died away I was informed that 2.4gig radio is, it would seem, incompatible with brushed electric motors. Having 2 new ones of this type in my latest marine creation I am somewhat reticent to replace them. Whilst the chaps informed me of my ill-conceived purchase none of them could actually tell me 'why' the 2 were incompatible!!!

I would appreciate any help on this subject, if anyone has the information. So far as I am aware, model aeroplane flyers use this set up, so why the difference??? I have to admit my knowledge of such things, on a scale of 1-10, is hovering around the 1.5 mark. Will 2.4 work with brush-less motors? Is there a way of protecting the radio gear from the interference from the motors? If indeed that is the case.

Please reply in Layman's terms, as it does not take a great deal of technical know-how to flummox me!!!

Cheers

MODEL BOATS WEBSITE

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???

2.4gig Radio and brushed motors???