Model Boat Mayhem

Technical, Techniques, Hints, and Tips => Radio Equipment => Topic started by: tugmad on December 02, 2009, 11:17:52 pm

Title: Another cheap 2.4 ghz radio set
Post by: tugmad on December 02, 2009, 11:17:52 pm
Hi to all,  has anybody had any dealings with or heard of a new  2.4 radio set on the market called the Planet 5.  it is a 5 channel set costing about £35 and spare recievers are about £10 each  any info or feedback welcome.
Title: Re: Another cheap 2.4 ghz radio set
Post by: exvtop on December 02, 2009, 11:53:15 pm
There's a review in the current (December 2009) issue of Marine Modelling International magazine.
They seem to think it's very good value for the price and easy to use.

Mike.
Title: Re: Another cheap 2.4 ghz radio set
Post by: tigertiger on December 03, 2009, 01:00:57 am
From the Sussex Model Centre Website
"Please note instructions state the range is only 150 metres..." Not the 800m as found in some sets.

I have on occasion sailed my larger boat this far, not often, but it could be a problem if you do sail away. Low batteries is another thought.

For many boaters this is not a problem.
Title: Re: Another cheap 2.4 ghz radio set
Post by: dodgy geezer on December 03, 2009, 01:18:52 am
I've handled a Planet in my local model shop. It's got a nicer finish than the Giant Cod radios.
Title: Re: Another cheap 2.4 ghz radio set
Post by: BarryM on December 03, 2009, 08:50:57 am
From the Sussex Model Centre Website
"Please note instructions state the range is only 150 metres..." Not the 800m as found in some sets.

I have on occasion sailed my larger boat this far, not often, but it could be a problem if you do sail away. Low batteries is another thought.

For many boaters this is not a problem.

The author of the review in the MMI magazine performed a range test which still gave reliable results at 300m. Battery life was not reported as a problem.

If you are serious about buying the set it would be worth getting hold of the mag to read the review.

Barry M
Title: Re: Another cheap 2.4 ghz radio set
Post by: tigertiger on December 03, 2009, 09:44:27 am
... Battery life was not reported as a problem.

Hi Barry,
My comment about low batts was about the performance and range, not about battery life.
I know when my RX batts are getting low I get irratic control if I stray too far. And so if the range was 150m this would be an issue for me.

If as you say they got stable results at 300m then no problems. I can't see that far  {:-{ {-)
Title: Re: Another cheap 2.4 ghz radio set
Post by: FullLeatherJacket on December 03, 2009, 10:00:09 am
I've handled one of these and I can only endorse what's been said about the quality - it's fine. The binding operation is a doddle, too. As for range, TT has it about right!
FLJ
Title: Re: Another cheap 2.4 ghz radio set
Post by: Nordsee on December 03, 2009, 02:03:21 pm
Hello, this sounds very interesting! The range doesn't bother me as with my small boats I rarely sail that far away!! Who are selling this Outfit? I cannot get the December Issue, too late as I live in Germany! Info would be good!
Title: Re: Another cheap 2.4 ghz radio set
Post by: Martin (Admin) on December 03, 2009, 03:04:44 pm

http://www.sussex-model-centre.co.uk/shopexd.asp?id=29064

http://www.jperkinsdistribution.co.uk/list.php?subcat=147&cat=Planet%20R/C%202.4GHz&Navmain=R/C%20equipment

http://www.brchobbies.co.uk/?page=shop&category=24
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on December 03, 2009, 03:25:37 pm
OK I give up, I'm going to have to ask. What is the difference between mode 1 and mode 2 ?

Simple answer please.
Title: Re: Another cheap 2.4 ghz radio set
Post by: dodgy geezer on December 03, 2009, 03:35:39 pm
This is the first url you get if you google 'mode 1 radio control'

http://www.flyingsites.co.uk/newcomers/controls/radiomode.htm
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on December 03, 2009, 03:39:41 pm
Great but my boats dont fly though I grant you they might pitch and roll a bit.

Which mode for boats ?
Title: Re: Another cheap 2.4 ghz radio set
Post by: Faraday's Cage on December 03, 2009, 03:52:29 pm
Quote
Which mode for boats ?

Dicky, Mode 1 Tx's have throttle (with ratchet) on the right hand stick, mode 2 have throttle  and ratchet on the left hand stick. It doesn't really matter for us boaters but you could have a personal preference or depends on what you are used to with any existing gear you've got. :-))

FC
Title: Re: Another cheap 2.4 ghz radio set
Post by: Faraday's Cage on December 03, 2009, 03:58:26 pm
Looking at the information on the Cornwall Model Boats site http://www.cornwallmodelboats.co.uk/acatalog/planet-5.html (http://www.cornwallmodelboats.co.uk/acatalog/planet-5.html),
the modes are interchangeable on the tx anyway.

FC
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on December 03, 2009, 04:05:04 pm
Cheers FC that was the simple answer I was looking for. :-))
Title: Re: Another cheap 2.4 ghz radio set
Post by: dodgy geezer on December 03, 2009, 04:22:09 pm
Which mode for boats ?

'Which mode is better?' is a much discussed question amongst the flying community.

I think the issue started in the 1970s, when people moved over from reed systems (which used two separate toggle switches for each control - one pushed a servo in one direction, the other reversed it). This might still cause confusion - old reed sets needed two 'channels' per control (and more if you wanted trims), while nowadays we use digital proportional sets, and talk of one control being 'one channel'.

When the first digital proportional sets came in, like the first cars, there was no standard control configuration, and each manufacturer did his own thing. In the US, manufacturers settled on having the main flying controls (elevator and aileron) on the same right-hand stick, while in Europe, people stuck with the main controls on different sticks, like the reed systems had. That meant turning (aileron) on the right, pitch (elevator) on the left, throttle on the right and rudder (least used) on the left.

None of this mattered at first, because each user had their own radio, learned to fly themselves, and if they wanted one stick on the back of the set and the other on the side that was fine. Gradually, as clubs became common, and being trained to fly many different aircraft became the norm, which sticks you used for what controls became more important. But by then the two different main approachs had become entrenched, and here they remain.

It's not that critical in practice - most sets have a small switch which lets you swap between mode 1 and mode 2, and you could always just plug the servos in different sockets anyway. It's safety-critical to know which mode you're flying for aircraft, but boats don't really have the same control issues, and often use the pistol-grip/steering wheel Scalectric-influenced sets that cars use.

For boats I tend to use rudder on the right, speed on the left, which might count as mode2 if I also had trim tabs on the right....

There was actually some research done which suggested that mode1 was a better way to fly, but I'm not sure if I believe it...


Title: Re: Another cheap 2.4 ghz radio set
Post by: Peter Fitness on December 03, 2009, 08:23:31 pm
The main argument in favour of Mode 2 for flying is that it's more realistic having the primary flight controls, elevator and ailerons, on one stick as in full size practice. I learned to fly on Mode 1, and have stayed with it ever since. My radios are quite old, the oldest was bought in Singapore in 1990, and don't have the ability to change modes so, unless I buy new ones, I'm stuck with Mode 1. I don't believe that either mode is necessarily "right", it's really a matter of personal choice.

Peter.
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on December 03, 2009, 09:03:30 pm
Just ordered a mode 2  from GiantCod with an extra receiver.
Title: Re: Another cheap 2.4 ghz radio set
Post by: dodgy geezer on December 03, 2009, 09:37:21 pm
Just ordered a mode 2  from GiantCod with an extra receiver.

DickyD,

Good luck with the radio! It will not come with instructions - you will find you have to 'bind' each receiver to the transmitter by pressing a little button on the receiver when everything is powered up before it will work - you only have to do this once when you get the radio, and you can bind receivers to other transmitters later if you need to.

Otherwise they're quite simple. There is a 'mixer' switch which will mix two channels inside - you can just see it on the PCB if you take the battery cover off. There is also a 'mode' switch on the PCB, but you have to take the whole back off the radio to get at this. The makers assume you won't need to change this very often!

I think it's a good idea to take the back off and have a little look - the price is so low that quality control can suffer - I have had one set with very poor soldering on the sticks which needed redoing, and you may find that you can't straighten the aerial without taking the back off anyway....
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on December 04, 2009, 08:41:49 am
Thanks, I'll let you know how I get on.
Title: Re: Another cheap 2.4 ghz radio set
Post by: FullLeatherJacket on December 04, 2009, 08:59:56 am
There is a 'mixer' switch which will mix two channels inside - you can just see it on the PCB if you take the battery cover off.
I think it's a good idea to take the back off and have a little look

Do you KNOW  who you're talking to here? Dicky would cheerfully tell you that he is to electronics what Richard Hammond is to jet dragsters.....................
Richard - if you're tempted, just ring us 24/7.
FLJ
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on December 04, 2009, 09:15:54 am
 {-) Didn't know I was that good Dave. Wait for the call.

As long as it doesn't muck up my P94.
Title: Re: Another cheap 2.4 ghz radio set
Post by: John W E on December 04, 2009, 09:20:57 am
Do you KNOW  who you're talking to here? Dicky would cheerfully tell you that he is to electronics what Richard Hammond is to jet dragsters.....................
Richard - if you're tempted, just ring us 24/7.
FLJ
I hope your phone is by  your side of the bed    %)        mine is  unplugged from know  {-) {-) {-) {-) {-) {-)

Title: Re: Another cheap 2.4 ghz radio set
Post by: Nordsee on December 04, 2009, 10:09:58 am
Hello again, regarding Mode1 and 2. Lots depends on where you are, here in Dunkle Deutschland nearly all seem to fly on Mode 1, and being German, refuse to admit that 2 could be better or as good. I learnt to fly back in the early 70s with a Club that all flew 2, mainly because that is how the Japanese radios ( Futaba etc) were set up. I later flew Gliders and sailplanes mode1, no real problem there. Boats are whatever comes out, but I use Winch on the left and rudder right, if possible. Today you could use anything you liked!
  I never take the back off a new Radio, doing so invalidates the Guarantee, or so I am told.
Title: Re: Another cheap 2.4 ghz radio set
Post by: Vintage on December 04, 2009, 11:08:21 am
it's a good idea to take the back off and have a little look - the price is so low that quality control can suffer - I have had one set with very poor soldering on the sticks which needed redoing, and you may find that you can't straighten the aerial without taking the back off anyway....

Am I the only one concerned to see a company flooding the market with cheap radio gear??

At £35- for a 5 channel set something's wrong - it's completely unsustainable to expect a company to produce, ship around the world & then allow a retailer to add a fair markup on such a product. Quality / service has to suffer & I can't help thinking it'll be another nail in the coffin of the traditional model shop.

I guess it'll lead to the death of quality sets as the likes of Futaba, etc. will no longer deem it viable to offer the huge range of servos / accessories, at the high end of the market, as they have in the past....

 :((



Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on December 04, 2009, 12:14:11 pm
Bet you would have said the same about Volkswagen cars or Honda motorcycles.
Title: Re: Another cheap 2.4 ghz radio set
Post by: tigertiger on December 04, 2009, 12:30:53 pm
Companies like Futaba are like Sony. They will continue to innovate as well as offering top quality, this will allow them to always charge a premium price.

There will always be both the hi end and budget markets. And part of the hi end market is the top servos and other accessories that drive the brands.

I don't see world champs in sailing, or people flying £1000s worth of gear, trading down to the budget market radios real soon.
Title: Re: Another cheap 2.4 ghz radio set
Post by: Circlip on December 04, 2009, 12:52:16 pm
Don't be an old fuddy duddy Vintage, S*d sound business sense, Cheap, Cheap Cheap!

  "Hey look what I just got"    ;D

  Regards  Ian.
Title: Re: Another cheap 2.4 ghz radio set
Post by: Vintage on December 04, 2009, 01:27:30 pm
Bet you would have said the same about Volkswagen cars or Honda motorcycles.

Too young to remember the days of cheap VW or Honda products (or to be an "old fuddy duddy"  :P) so can't possibly comment  :-) Can we look forward to premium products in the future & a "Giant Cod" service centre in every major UK town....??  ;D

Just seems strange to me that people spend more on putting a tank full of fuel in their car than they're prepared to pay for a piece of equipment that should provide years of enjoyment controlling their favorite, lovingly constructed models. From my experience the cheap sets feel just that - cheap & tacky plastic as opposed to the tactile, quality feel of established manufacturers.

There will always be both the hi end and budget markets. And part of the hi end market is the top servos and other accessories that drive the brands

Lets hope so  :-))

I'll stick with my hi end Futaba gear thank you   :-)
Title: Re: Another cheap 2.4 ghz radio set
Post by: oldernovice on December 04, 2009, 01:47:24 pm
Had a phone call from Howes this morning advising that they had not rec'd their shipment of radios that were shown at the show,but had a replacement model the Planet 5.
Those of you who have had the back off, are the centring bits swappable between horizontal and vertical axis channels , as I wish to make both sticks self centring in the vertical axis to run twin motors, and am happy to leave the left horizontal stick non centring as for the moment it will not be used.

Jim.
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on December 04, 2009, 01:55:46 pm
Well Mr Vintage [or should that be young vintage] you should feel very privileged to have a local hobby shop, my nearest is approx 90 minutes away and being disabled its not very convenient.
Also being disabled and having to rely on wife's income for everything, your top of the range Futaba 2.4 stuff is way out of my price range.
I do all my boat shopping on the internet, though I do use shops for it where possible as Barry at Westbournes and Malcolm at Cornwall Model Boats will testify.
All my 40AM stuff is Futaba if that makes you feel any better, 4Txs and 14Rxs. Probably helped to pay for the development costs on your 2.4 Futaba stuff.
Title: Re: Another cheap 2.4 ghz radio set
Post by: Vintage on December 04, 2009, 02:55:05 pm
you should feel very privileged to have a local hobby shop
Richard

My local model shop isn't actually very good although, I concede, that I'm fortunate to have a local model shop at all & that really was my point, those traditional type model shops that struggle on aren't helped by the mass import of cheap, poor quality (based upon comments made by on this site) goods flooding onto the market. It isn't sustainable in my view & my initial post merely expressed that.

your top of the range Futaba 2.4 stuff is way out of my price range.

I don't actually have any 2.4 Futaba gear - all my sets are pre. 2.4 &, being consistently reliable, I have no need to replace them.

Good to hear that you use Futaba yourself  :-))

Mark.
Title: Re: Another cheap 2.4 ghz radio set
Post by: dodgy geezer on December 05, 2009, 12:22:08 am
Am I the only one concerned to see a company flooding the market with cheap radio gear??

At £35- for a 5 channel set something's wrong - it's completely unsustainable to expect a company to produce, ship around the world & then allow a retailer to add a fair markup on such a product. Quality / service has to suffer & I can't help thinking it'll be another nail in the coffin of the traditional model shop.


Quality is as quality does, as my old granny used to say. What she meant I have no idea, and I suspect she hadn't, either!

We have several issues here. One is that globalisation means that all products, not just model kit, are often able to be made and shipped half-way round the world cheaper than they can be made locally. Combine that with the rise of Internet ordering, and we could be watching the traditional high street collapse, rather than just the model shops. In our lifetimes we have already seen the disappearance of the traditional butchers/grocers/fishmongers/fruitshop from many towns. I suspect that specialist providers like model shops will hang in longer than many others.

The other issue is that cheap mass production is catching up with our hobby. Radio control was always a bit of an unusual pastime, and we paid through the nose for our specialist electronics back in the 1960s and 1970s. Now we have 'park flyers' demanding volume ready-made kit, and, crucially, a huge expansion in wireless computing. That means the development of transmitter electronics on the 2.4Ghz band which cost pennies.

These cheap sets use hardware developed from the park flyer toys, and radio circuitry from wireless computing. They are simple, no frills, cheap trim sets, but the fundamental design seems ok. I suspect the build quality control is going to be low, but modelers can often rectify that themselves. And if they break after three years use, throw them away and get a new one. Just like modern car parts, or TVs, it has become uneconomic to refettle individual items. We are seeing the definition of quality/service for consumer goods change as well...

Title: Re: Another cheap 2.4 ghz radio set
Post by: jabba on December 05, 2009, 12:45:32 am
Alot of people at kirklees use the planet radio.
its a very good set with no glitching,easy to bind and the range is good.
you can buy from leeds model shop,for around £40.00,if i did'nt have a dx7 i would buy instantly.
its as cheap as a xtal radio.
also a friend dropped the planet transmitter in the lake,it still works perfect.
 hope this helps.
  jabba.
Title: Re: Another cheap 2.4 ghz radio set
Post by: Zed. on December 05, 2009, 01:41:30 pm
Hello gents,

 I have just bought one of the T5 sets (untried as yet, batteries on charge, will do a range test as I have not completed the model yet :embarrassed:)

a question maybe for the electronics guru's amongst us O0

as the rx aerial is short and on a boat this might be hidden from view, is it possible to lengthen it?

I have opened the plastic 'wrap' rx case and looking at the pcb the soldering of the aerial wire seems to be just a single attachment making me think that the wire is not a co-ax but single 8)

I have read that the aerial's length is specific on 2.4g sets but wonder about 'remote' aerial positoning maybe

my reasoning behind this is that I am building a surface runner type 7c u boat (based on the revell plastic kit) and fancy 2.4g radio but would like the rx & aerial high enough to garantee good signal strength as it has not much superstructure hight over water level

if it is not going to work then I will get another (40mhz?) set for the u boat and use the 2.4g set on the flower corvette I am also building :-)

Rich.
Title: Re: Another cheap 2.4 ghz radio set
Post by: FullLeatherJacket on December 05, 2009, 05:43:34 pm
as the rx aerial is short and on a boat this might be hidden from view, is it possible to lengthen it?
Don't tamper with it or try to alter it in any way.
This is a microwave device and not VHF like your 40 meg sets. If you have any doubts then fit an AM or FM radio.
FLJ
Title: Re: Another cheap 2.4 ghz radio set
Post by: dodgy geezer on December 05, 2009, 05:52:37 pm
Hello gents,

as the rx aerial is short and on a boat this might be hidden from view, is it possible to lengthen it?

I have read that the aerial's length is specific on 2.4g sets but wonder about 'remote' aerial positoning maybe


All aerial lengths are carefully tuned at the factory. Any fiddling will make them worse. I suspect that, because a 2.4Ghz aerial is so short, in percentage terms you will cause more trouble altering that than a 27Mhz one, certainly you will reduce the range more than any positioning could enhance it.

There have been many comments about 2.4Ghz being shielded by water, but I know of no reports where this was definitely shown to be an issue.

2.4Ghz propagation is odd. The radio waves can get through very narrow cracks and gaps - much better than down in the Mhz range, but they are prone to shadow effects, reflections and other problems which can cause sudden failures of reception. This is recognised by the big players, who produce radios with twin aerial front-ends to give redundancy - you place one aerial at right-angles to another...
On the Giant Cod website is a little circuit for multiplexing two radio receivers together to attain the same effect - aircraft might like this but I don't think any boats will need it...

Title: Re: Another cheap 2.4 ghz radio set
Post by: Zed. on December 06, 2009, 02:08:40 pm
mmmmm, interesting

thanks guys, was just an idle wondering (well, more along the lines of 'remote positoning' the aerial :embarrassed:)

always good to have ideas & others thoughts :-)

might try to fit the rx into the u boats 'tower' :-)

Rich.
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on December 08, 2009, 01:21:33 pm
Tried out my Giant Cod radio today. Dead easy to set up and bind, even for me.

Works absolutely fine on my single screw boats but could not get the trim right on the ones with a P94 in.

So my Futaba for the complicated set ups and Giant Cod for the simple set ups.

Title: Re: Another cheap 2.4 ghz radio set
Post by: craftysod on December 08, 2009, 08:37:25 pm
Glad you got it working Dicky
As i said with the GC radio,its a matter of putting the right connection into the rx,and maybe reversing the tx
to get right direction
Mark
Dont do mixers, thats in the kitchen
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on December 08, 2009, 08:42:22 pm
It was easy Mark, 1, 3 and 7 as you said. Had to reverse speed servo.

Got it to bind straight away.  :-))
Title: Re: Another cheap 2.4 ghz radio set
Post by: john j on December 08, 2009, 09:04:43 pm
Am I the only one concerned to see a company flooding the market with cheap radio gear??


I share the same concerns.

At that money quality must suffer, are they even legal in this country- do they have the CE badge ?
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on December 08, 2009, 09:18:05 pm
Mine has a CE badge John. They are fine for a straight forward set up.
Title: Re: Another cheap 2.4 ghz radio set
Post by: john j on December 08, 2009, 09:32:40 pm
Mine has a CE badge John. They are fine for a straight forward set up.

It is definetly reasuring that they come with the CE badge, i dont think they hand them out lightly.

I`ve just spent the guts of £1800.00 on a JR 12x radio, so either were getting stiffed by the 'big two' (futaba and JR) or the chineese sets are poor quality. I think only time will tell.

I`ll definetly be keen to see how these sets hold up long term.
Title: Re: Another cheap 2.4 ghz radio set
Post by: craftysod on December 08, 2009, 10:05:38 pm
£1800 on a radio my missus would kill me,where do you think futuba come from,china.
These cheap radio sets might not last long,throw away,get another
Title: Re: Another cheap 2.4 ghz radio set
Post by: john j on December 08, 2009, 10:23:38 pm
£1800 on a radio my missus would kill me,where do you think futuba come from,china.
These cheap radio sets might not last long,throw away,get another

She bought me the last one nine years ago, i think it was around £900. she spends more than that on make-up a month  {-) {-) {-) {-)

I understand what your saying about throwing it away and getting another one when it`s surface vehicel`s, but when you have a model jet in the air costing 3,4,5000 quid could you really take the chance ?

I know it`s a high price to pay, but it`s piece of mind i`m afraid
Title: Re: Another cheap 2.4 ghz radio set
Post by: craftysod on December 08, 2009, 10:32:39 pm
I can see where your coming from John,where the model costs that much,i would not take risks either
Title: Re: Another cheap 2.4 ghz radio set
Post by: dodgy geezer on December 09, 2009, 12:01:03 am
..when you have a model jet in the air costing 3,4,5000 quid could you really take the chance ?

I don't think anyone's recommending these sets for high performance or safety critical applications. While they seem to be solidly made and adequately designed, they are obviously built to a price. That probably shows up in the component quality and the build quality, which is likely to be variable. I have had one where the internal wire solder joints on the stick pots were hanging by a thread - easily mended, and probably built by a trainee. So I would suggest checking them before use - but so long as they are used with an eye to their limitations they will probably perform as well as a more expensive set.... 
Title: Re: Another cheap 2.4 ghz radio set
Post by: john j on December 09, 2009, 01:39:45 am
I don't think anyone's recommending these sets for high performance or safety critical applications. While they seem to be solidly made and adequately designed, they are obviously built to a price. That probably shows up in the component quality and the build quality, which is likely to be variable. I have had one where the internal wire solder joints on the stick pots were hanging by a thread - easily mended, and probably built by a trainee. So I would suggest checking them before use - but so long as they are used with an eye to their limitations they will probably perform as well as a more expensive set.... 

I totally agree, up untill a few days ago i didn`t even know these sets existed and as you say their probably more than upto the job for everything apart from the elaborate stuff (purely a precaution) my biggest concern was, if they were legal in the UK, but as DD says his came with a CE sticker.

I think i`m just stunned by how cheap these sets are, bearing in mind this is up to the minute technology. How long have these sets been available ? is it long enough to know if they are reliable, has there been many returns, if any.

We tend to think, no matter what we are buying whether it be a TV, washing machine or that type of thing, that the more expencive one is going to be the better quality.

If these chineese sets do turn out to be good then the likes of futaba and JR are gonna be in bother !

                                                  cheers
                                                        john
Title: Re: Another cheap 2.4 ghz radio set
Post by: andygh on December 09, 2009, 02:09:17 am
I've had my Turborix 6ch since February, no problems with it at all. I now have the 3ch and the 9ch from the same company  :-))
Title: Re: Another cheap 2.4 ghz radio set
Post by: john j on December 09, 2009, 02:46:42 am
I've had my Turborix 6ch since February, no problems with it at all. I now have the 3ch and the 9ch from the same company  :-))

So far so god then, given that most manufacturers recommend a service once a year anyway  :-))

I have a 1/5 scale petrol buggy with a futaba 40 meg fm 3gr set at the moment, i might try one of these chineese 2.4 sets in it to see what it`s all about.
Title: Re: Another cheap 2.4 ghz radio set
Post by: HS93 (RIP) on December 09, 2009, 03:20:59 am
has  the 3gr got a modual ? i fitted one in my old JR2+2 and it is working well and look at the price,

http://www.r2hobbies.com/products.php?cat=23

if not if your handy   http://www.jetimodel.com/index.php?page=products&old=0&category=4    the TU I have fitted one to my FF9 and it is a magic bit of kit with real time feed back, it is made in the EU and we are prob paying for it by the looks of things but it is a nice bit of kit

Peter
Title: Re: Another cheap 2.4 ghz radio set
Post by: john j on December 09, 2009, 04:05:29 am
has  the 3gr got a modual ? i fitted one in my old JR2+2 and it is working well and look at the price,

http://www.r2hobbies.com/products.php?cat=23

if not if your handy   http://www.jetimodel.com/index.php?page=products&old=0&category=4    the TU I have fitted one to my FF9 and it is a magic bit of kit with real time feed back, it is made in the EU and we are prob paying for it by the looks of things but it is a nice bit of kit

Peter

Hi peter,

It dosn`t have a module i`m afraid, good shout though  :-)) interesting site.
Title: Re: Another cheap 2.4 ghz radio set
Post by: dodgy geezer on December 09, 2009, 09:31:07 am

I think i`m just stunned by how cheap these sets are, bearing in mind this is up to the minute technology. How long have these sets been available ? is it long enough to know if they are reliable, has there been many returns, if any.


What I think has happened is that radio control toys have boomed - expanded foam park flyers, helicopters and the like, on 27Mhz. So Chinese factories are making transmitter boxes and sticks in bulk for very little cost. At the same time wireless computing (which uses 2.4 Ghz) has boomed, so other Chinese factories are making 2.4Ghz electronics in bulk for very little cost. Several Chinese companies have just merged these two feeds to produce cheap 2.4Ghz Tx/Rx combos.

They will have no dedicated model flying development team, so they won't develop all the clever bells and whistles of the 'professional' manufacturers. But for run-of-the-mill applications both the above technologies are well proven, so I expect the cheap sets to perform OK. Just don't expect any clever software for specific model applications.

Of course, if these sets take a percentage of the market, Futaba and the rest will have to react, and produce a low-cost version of their own, or leave the cheap  market to concentrate on high-end systems. That's how capitalism works....
Title: Re: Another cheap 2.4 ghz radio set
Post by: andygh on December 09, 2009, 09:51:57 am
Quote
http://r2hobbies.com/proddetail.php?prod=rcps61207
Title: Re: Another cheap 2.4 ghz radio set
Post by: BarryM on December 09, 2009, 11:53:30 am
...and my brace of 21 year old Fleet Tx's and Rx's still soldier on without a computer memory, giving me more channels as standard than almost anything else on the market and with nary a glitch, twitch or cause to curse them. Have we really progressed or just got sucked in by the latest 'must have' with all its tinkly bells and whistles?

Barry M
Title: Re: Another cheap 2.4 ghz radio set
Post by: dodgy geezer on December 09, 2009, 12:46:14 pm
Have we really progressed or just got sucked in by the latest 'must have' with all its tinkly bells and whistles?

I'll bet you're not still running 21 year old servos though!

My oldest kit in semi-running order, (not counting home-made stuff) is a World Engines Digit Midget three-channel from 1969. With 4-wire servos and centre-tap DEAC...
Title: Re: Another cheap 2.4 ghz radio set
Post by: BarryM on December 09, 2009, 02:53:47 pm
Oh yes I am! - Fleet servos too!  ;D

My most complex model has independent/linked throttle control, steering, traversing turrets, gunfire SFX, working/traversing searchlight and working nav lights and all by 21 yrs old British-built Tx, Rx and servos.  Why would I swop it for a thrown-together yesterday, fall apart in six months or less, bunch of components put together in some remote sweat-shop?

Cheers

Barry M
Title: Re: Another cheap 2.4 ghz radio set
Post by: Martin (Admin) on December 09, 2009, 04:26:11 pm

Went down the local model shop at lunchtime today they have the Planet 5 radios in,
 you guys were right, they do have a good "feel" to them!

Peterborough Model Centre have them at £39.99 (+£5 p&P)
.... I said I would give them a free 'plug'!
http://peterboroughmodelcentre.com/index.php (http://peterboroughmodelcentre.com/index.php)
Title: Re: Another cheap 2.4 ghz radio set
Post by: dougal99 on December 09, 2009, 04:32:50 pm
Martin you've slipped in another 9 there the sets are only £39.99 or is the £360 your commission??  {-)
Title: Re: Another cheap 2.4 ghz radio set
Post by: Martin (Admin) on December 09, 2009, 04:43:43 pm
That's very unlike me to make a mistake....  :P
Title: Re: Another cheap 2.4 ghz radio set
Post by: dougal99 on December 09, 2009, 04:58:18 pm
That's very unlike me to make a mistake....  :P

Hang on I just got buzzed by a flying pig  %% %% %%
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on December 09, 2009, 05:21:03 pm
You surely dont have to plug them in Martin.
You'll need a long lead.
Title: Re: Another cheap 2.4 ghz radio set
Post by: Martin (Admin) on December 09, 2009, 05:34:34 pm
...grooooan!
Title: Re: Another cheap 2.4 ghz radio set
Post by: andygh on December 09, 2009, 07:54:30 pm
Quote
Have we really progressed or just got sucked in by the latest 'must have' with all its tinkly bells and whistles?


If you find your setup satisfactory you should stick with it and rightly so but I don't think I've spoken to anyone who uses 2.4ghz and aren't pleased with it. If I can buy a modern programmable 2.4ghz set for less than a 40mhz or 27mhz set I don't have to think twice about it.

Each to their own I suppose  O0
Title: Re: Another cheap 2.4 ghz radio set
Post by: Peter Fitness on December 09, 2009, 09:04:23 pm
My 1990 model JR X347 and all its servos are still working perfectly, even after years of flying and now boating.

I like the concept of 2.4 Ghz with no need to worry about frequency boards. I'm still seriously thinking of getting a Turborix.

Peter
Title: Re: Another cheap 2.4 ghz radio set
Post by: Martin (Admin) on December 09, 2009, 09:22:17 pm

I had a JR x347 too Peter, great feel to the Tx.
The Multiplex 'Cockpit' is another 'comfortable Tx to hold!'
Title: Re: Another cheap 2.4 ghz radio set
Post by: john j on December 09, 2009, 10:12:19 pm
Oooh, that MPX sx`s gimball`s look like a pair of strange eye`s staring back at you  %% %%

I understand the programming for it takes a bit of getting used to ! it`s certinally not for me.
Title: Re: Another cheap 2.4 ghz radio set
Post by: wetbehindtheears on February 13, 2010, 03:26:15 pm
Silly quetion time guys, :embarrassed:

I'm looking for a cheap 2.4ghz set for a boat but can anyone tell me if their receivers are compatible with standard type servos (ie Futaba, Hitec etc?).  I have been looking at the Planet 5 mwentioned in this thread.

Thanks
Title: Re: Another cheap 2.4 ghz radio set
Post by: barriew on February 13, 2010, 03:38:53 pm
Yes

Barrie
Title: Re: Another cheap 2.4 ghz radio set
Post by: Colin Bishop on June 22, 2010, 03:57:02 pm
I'm thinking of getting a Planet but looking through all the posts I'm not entirely clear which channels come with ratchets on the stick. I want to be able to self centre so how many spring conversion kits will I need?

Thanks,

Colin
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on June 22, 2010, 05:47:08 pm
Check this out Colin

Mode 2, throttle left is ratchet, rudder right is self centering.

You will need one kit.

http://www.cornwallmodelboats.co.uk/acatalog/planet-5-rc-systems.html

More detailed spec. double click on picture of transmitter.
Title: Re: Another cheap 2.4 ghz radio set
Post by: Colin Bishop on June 22, 2010, 05:53:00 pm
Thanks Richard, that's what I thought - best to check!

Colin
Title: Re: Another cheap 2.4 ghz radio set
Post by: RaaArtyGunner on June 22, 2010, 11:56:56 pm
Check this out Colin

Mode 2, throttle left is ratchet, rudder right is self centering.

You will need one kit.

http://www.cornwallmodelboats.co.uk/acatalog/planet-5-rc-systems.html

More detailed spec. double click on picture of transmitter.

Dick, had a look at the "Planet receiver" am I right that new servo plugs do not to be fitted to existing servos (say Futaba) as they will fit the "Planet".
Not entirely clear, as  the servo plugs fit into Futaba receivers whilst "Planet" is exposed male (pin) connection.
However if the "Planet" is the same connection configuration (pin) but only exposed then all is OK.
 Correct?
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on June 23, 2010, 08:18:48 am

Dick, had a look at the "Planet receiver" am I right that new servo plugs do not to be fitted to existing servos (say Futaba) as they will fit the "Planet".
Not entirely clear, as  the servo plugs fit into Futaba receivers whilst "Planet" is exposed male (pin) connection.
However if the "Planet" is the same connection configuration (pin) but only exposed then all is OK.
 Correct?

If you mean do the existing Futaba plugs fit the Planet Rx, then the answer is yes. :-))
Title: Re: Another cheap 2.4 ghz radio set
Post by: Colin Bishop on June 23, 2010, 09:50:02 am
Now I'm confused! Will I have to change the servo plugs to female connectors to connect them to the Planet RX?

Colin
Title: Re: Another cheap 2.4 ghz radio set
Post by: Martin (Admin) on June 23, 2010, 11:06:31 am
 :-)
Title: Re: Another cheap 2.4 ghz radio set
Post by: RaaArtyGunner on June 23, 2010, 11:26:48 am

Thank you am now with it.
I think. No its OK,  O0 I understand as all has now been revealed.  :-)) O0
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on June 23, 2010, 11:33:37 am
The pins on the Rx are the same as on the Action Electronics gear and the standard fitted Futaba Rx.  Your plugs as fitted WILL FIT Colin.

In fact they take all makes as standard. :-))
Title: Re: Another cheap 2.4 ghz radio set
Post by: barriew on June 23, 2010, 01:00:03 pm
Colin,

What we all refer to as PLUGS on the end of Servos, ESCs etc are in fact SOCKETS which push onto the pins on the Receiver. Its the housing which is "male", the bit that does the work is actually "female" :-))

Barrie
Title: Re: Another cheap 2.4 ghz radio set
Post by: Circlip on June 23, 2010, 01:02:59 pm
Not on the ends of my Remcon Quantum 6 servo leads they ain't  O0  :D

  Regards  Ian
Title: Re: Another cheap 2.4 ghz radio set
Post by: DickyD on June 23, 2010, 01:18:45 pm
I was always told that the live side of a plug and socket joint was the female socket. Biology aye.
Title: Re: Another cheap 2.4 ghz radio set
Post by: Colin Bishop on June 23, 2010, 01:25:53 pm
Quote
What we all refer to as PLUGS on the end of Servos, ESCs etc are in fact SOCKETS which push onto the pins on the Receiver. Its the housing which is "male", the bit that does the work is actually "female"

Yes that's the case now but on my old Futaba M series gear the plugs on the servos were definitely all male and plugged into holes in the RX.  Times change...

Colin
Title: Re: Another cheap 2.4 ghz radio set
Post by: malcolmfrary on June 23, 2010, 07:08:02 pm
It is possible to have a female plug and a male socket.  Its just careful use of language ignoring the common and incorrect usage that all plugs must be male.  If its on the end of a lead, its a plug.
The present "standard" for servos, 3 wires, -ve at one side,+ve in the middle and signal on whats left, arranged in a neat row spaced a 0.1", running on a nominal 5 volts and using pulse length encoding is so common that any RX maker who tries to step outside of it is going to wind up with very few customers.
Title: Re: Another cheap 2.4 ghz radio set
Post by: RaaArtyGunner on June 24, 2010, 12:21:45 am

Just to add to the confusion ok2  here in Oz we were taught that all connections with pins, prongs, protrusions etc were "Male"  and conversely all connections be they sockets etc with holes ie they fitted onto , were female connections. :-))
Simple anatomy was used to differentiate the type of connection thereby determining if it was a male or female connection.
It then follows you can have either male & female plugs or male and femal sockets{-)  %%
Simple really  %) :o {-)