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Jonathan M22/05/2020 11:20:31
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730 forum posts
289 photos

I have to agree with Andy48: start completely afresh if you can.

Early last year I lost two models in two weeks (IC Acrowot and EP Wot4) due to RF board issues on my DX7 (black). After this was replaced by the Spektrum service agent, I went out flying a light model on the slope when I started experiencing temporary unresponsiveness close to! I landed as soon as I could, got rid of the TX, gave away my collection of receivers.

I've been using Taranis since then. A bit of an initial learning-curve (although nothing that would tax someone who can already fly and has been used to other modern systems) but not expensive and totally rock solid.

Just my experience.

Nigel R22/05/2020 12:12:39
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3894 forum posts
678 photos

I have, Spektrum DX6i, DX7, a few receivers, and, not a single problem.

Locally, almost all of my club use Spektrum.

Lets not turn this thread into another brand bashing!

David Davis22/05/2020 12:13:17
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3751 forum posts
711 photos

I've had problems with my DX9. On one occasion it failed to light up the five bars on the facade of the transmitter. It was sent away for a service. On another occasion I lost two models in consecutive flights so I sent the transmitter to be serviced, ie the RF board was replaced.

If I have anymore problems with it I'm going for a Multiplex, Made In Germany.

Taranis transmitters frighten me because I'm totally uninterested in information technology and if I hear the word "programmable," I run a mile.

Paul Marsh22/05/2020 12:22:03
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4021 forum posts
1217 photos

I use Hitec, Futaba and Spektrum, also Tactic and been all good sets.

Did have Taranis, but even I couldn't get round the logic, could not even reverse the throws on a basic 4ch model and Found that to reverse, you altered "weight" whaaat? does not compute! Was about to throw the TX over the hedge and smash it.

I don't want to look at Youtube every time I set a parameter up. So I sold it last week, as never used it.

Spektrum and Futaba are the main ones, as Hitec don't do radios any more, as does Tactic, though the Tactic set is brilliant, pity there was never a larger set made.

flight122/05/2020 13:27:40
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734 forum posts
37 photos
Posted by Paul Marsh on 22/05/2020 12:22:03:

I use Hitec, Futaba and Spektrum, also Tactic and been all good sets.

Did have Taranis, but even I couldn't get round the logic, could not even reverse the throws on a basic 4ch model and Found that to reverse, you altered "weight" whaaat? does not compute! Was about to throw the TX over the hedge and smash it.

I don't want to look at Youtube every time I set a parameter up. So I sold it last week, as never used it.

Spektrum and Futaba are the main ones, as Hitec don't do radios any more, as does Tactic, though the Tactic set is brilliant, pity there was never a larger set made.

thats false well you don't use weight to reverse your servos on opentx you go to the out put (servo) page and set throws movement etc on that page very easy ( you were using the mixes page). pity you did not download the manual or ask some one on here very easy once shown , also there is a wizard to set up basic models which comes up when a new model is set up / indicated.

Also these day there are lots of good reliable Tx's makes out there multiplex, radiolink(ripmax), flysky(PL18) , Jumper T18(multiprotocol), you take you money and choose one to suite yourself

Edited By flight1 on 22/05/2020 13:31:33

Jonathan M22/05/2020 14:13:47
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730 forum posts
289 photos
Posted by Nigel R on 22/05/2020 12:12:39:

I have, Spektrum DX6i, DX7, a few receivers, and, not a single problem.

Locally, almost all of my club use Spektrum.

Lets not turn this thread into another brand bashing!

With apologies, I didn't mean to bash the brand (in fact never had a problem with my DX6i only with the black DX7 I replaced it with). I was really just picking up on the idea that if one's returning with old kit that needs money spending on it, then this might be the opportunity to look at what else is on offer.

For me, the extra work of converting at a mental level to OpenTx was a small price to pay for the fact that in my main interest-area - slope and thermal soaring - there are some very good templates available, which are way beyond what a mere mortal like myself could programme on their own into any system.

For general purpose power flying, there's very little wrong with all the main brands.

Andy4822/05/2020 16:12:36
1539 forum posts
9 photos
Posted by David Davis on 22/05/2020 12:13:17:

I've had problems with my DX9. On one occasion it failed to light up the five bars on the facade of the transmitter. It was sent away for a service. On another occasion I lost two models in consecutive flights so I sent the transmitter to be serviced, ie the RF board was replaced.

If I have anymore problems with it I'm going for a Multiplex, Made In Germany.

Taranis transmitters frighten me because I'm totally uninterested in information technology and if I hear the word "programmable," I run a mile.

All modern transmitters are programmable. You might have to take up long distance running as a new hobby.

Chris Bott - Moderator22/05/2020 19:45:17
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Posted by Paul Marsh on 22/05/2020 12:22:03:

Did have Taranis, but even I couldn't get round the logic, could not even reverse the throws on a basic 4ch model and Found that to reverse, you altered "weight" whaaat? does not compute!

Absolutely incorrect, Paul (Although it would work). To reverse a channel you go to the outputs page, i.e. the one that relates to the output of each channel and you just reverse the direction. Couldn't be simpler.

The mistake people make is looking to do it the same way as other makes with their prescriptive menu system. Get your head around OpenTx and what each of its few pages are for and it's pretty simple, really.

Everyone is different though which is why different systems suit different people. Nothing wrong in that.

Richard Clark 222/05/2020 20:49:21
243 forum posts
Posted by Chris Bott - Moderator on 22/05/2020 19:45:17:
Posted by Paul Marsh on 22/05/2020 12:22:03:

Did have Taranis, but even I couldn't get round the logic, could not even reverse the throws on a basic 4ch model and Found that to reverse, you altered "weight" whaaat? does not compute!

Absolutely incorrect, Paul (Although it would work). To reverse a channel you go to the outputs page, i.e. the one that relates to the output of each channel and you just reverse the direction. Couldn't be simpler.

The mistake people make is looking to do it the same way as other makes with their prescriptive menu system. Get your head around OpenTx and what each of its few pages are for and it's pretty simple, really.

Everyone is different though which is why different systems suit different people. Nothing wrong in that.

Yes. it depends on what you are used to. The 'prescriptive' (restricted would be a better name but it wouldn't sell ) interfaces, such as Futaba, JR, and Spektrum are very different from the 'object orientated' (unrestricted) interfaces of Multiplex and OpenTx.

Nobody who has used Multiplex would have a problem with OpenTx and vice-versa.

And once the concept has 'clicked' in your head the object orientated systems are very intuitive. And far more flexible and 'powerful'. For example you can easily make retract sequencers using the servo 'curves' and 'servo slow' on a Multiplex so don't need a built in 'feature' of sequencers at all. I assume you can do something similar on OpenTx.

As for 'minor' system, such as Tactic, Radiolink, etc. they may be low cost but they tend to appear on the market for a short time, then vanish - in my memory about ten of these things have briefly appeared/disappeared in the last few years. So if you want service or more receivers you are stuck and will then have to fork out for a 'known' system anyway.

Paul Law23/05/2020 09:25:48
25 forum posts
Posted by Nigel R on 22/05/2020 09:56:44:

Any currently available receiver will be fine. The AR410 and AR620 seem to be well liked and reasonably priced.

Thanks for the info, perhaps I should have mentioned these are for two elderly helis, one Raptor 50, the other a Trex 450, having read through a few forums there would appear to be some issues with the AR620, Carbon fiber frames and signal quality.

The lack of external ariel (sat) appears to have a bearing ?

Cheers,

Paul

Doc Marten23/05/2020 09:53:47
570 forum posts
7 photos

How come the new Graupner trannies never get recommended?

Frank Skilbeck23/05/2020 10:48:14
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4729 forum posts
101 photos
Posted by Doc Marten on 23/05/2020 09:53:47:

How come the new Graupner trannies never get recommended?

Have you seen this statement on Airteks website **LINK**

Steve J23/05/2020 10:58:46
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1906 forum posts
54 photos
Posted by Nigel R on 22/05/2020 12:12:39:

Lets not turn this thread into another brand bashing!

One of the unwritten rules of this forum is that topics asking about radios have to include both Spekkie bashing posts and posts saying how great OpenTx is.

john stones 123/05/2020 11:13:09
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11513 forum posts
1516 photos

I'll mention Graupners Radio, excellent kit, as is every brand I've come into contact with, we are spoilt for choice.

Richard Clark 223/05/2020 11:15:06
243 forum posts
Posted by Doc Marten on 23/05/2020 09:53:47:

How come the new Graupner trannies never get recommended?

Easy.

There doesn't appear to be an 'official' or notably enthusiastic UK importer so very little dealer representation and no regular supply. The few dealers are always going 'out of stock' of things, and that's long before the coronavirus.

And other than the quite 'pretty looking' tray versions (and tray radios are not popular in the UK anyway) nothing that makes them stand out.

And they weren't helped by the performance of the US designed XPS 2.4 RF system they used before HOTT.

john stones 123/05/2020 11:22:19
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11513 forum posts
1516 photos

I've numerous club mates using Graupner, superb box, feel great in the hand, Hott system seems pretty capable, they don't have issues getting stuff, great looking, not one of the dominant brands but well worth looking at.

kc23/05/2020 11:37:25
6507 forum posts
173 photos

Tx selction is just like cars - everyone says the one they own is the best ever and wouldn't buy anything else or the one they bought is the worst ever and will never buy again!

But why anybody would want to buy a Tx that could be updated online and therefore possibly change something you don't know about is beyond me! If it ain't broke don't fix it.

gangster23/05/2020 11:37:35
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1029 forum posts
29 photos
Posted by Steve J on 23/05/2020 10:58:46:
Posted by Nigel R on 22/05/2020 12:12:39:

Lets not turn this thread into another brand bashing!

One of the unwritten rules of this forum is that topics asking about radios have to include both Spekkie bashing posts and posts saying how great OpenTx is.

Certainly seems that way. In over 40 years of rc I have always chosen my radio by looks, feel and probably even smell. Does it have the feature I want and how easy is it to use. Thats about 8 different makes, Which was best? None of them I have never lost a model due to radio failure. My advise to the OP is to get that DJT or xJT module while you can they are cheap enough, you will struggle to find a radio of the quality of the PCM9 these days without spending a hell of a lot of money

Graupner yea I had that as well , it was really a JR , not all were by any means, I bought it on ebay as part of a job lot of stuff, it had an FRSky hack module 2.4 conversion

It was very good, I flew it for a while, liked it, and could even get round the menu which was in German. I sold it on because in these days of having to have everything perfect and no excuses to invalidate insurance it was a grey import from Hungary and modded to 2.4 on top

Richard Clark 223/05/2020 11:47:03
243 forum posts
Posted by Steve J on 23/05/2020 10:58:46:
Posted by Nigel R on 22/05/2020 12:12:39:

Lets not turn this thread into another brand bashing!

One of the unwritten rules of this forum is that topics asking about radios have to include both Spekkie bashing posts and posts saying how great OpenTx is.

Good comment.

But to be fair the original Spektrums weren't very good. It's why they changed the transmission protocol from DSSS to a rather unusual both 'spread' and 'frequency hopped' system and so ended up with something very similar to Futabs's FASST.

As for OpenTx, while 'open' in theory, in practice, with only two makes supporting it, FrSky and (I believe) Turnigy, it isn't 'open' in the commonly accepted sense at all. Compare that with all TVs having an HDMI interface, for example.

And its off-putting 'fanboyism' is nearly as bad as Apple's

Steve J23/05/2020 12:12:09
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1906 forum posts
54 photos

Posted by Richard Clark 2 on 23/05/2020 11:47:03:

But to be fair the original Spektrums weren't very good.

There is nothing wrong with DSM2 in a club environment. I still have models with DSM2 receivers (including my three biggest ones) and see no reason to change them. All Spektrum did when they went from DSM2 to DSMX is increase the number of channels that they hopped between which they needed to do in order to comply with EN 300 328 1.8.1.

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