Topic: A "what is good about Multiplex" thread - compared to spektrum

And just how many times has the RF part of a transmitter failed? I really don't see the advantage here, the most likely part to fail surely are the mechanical items eg the sticks, what so good about dual Tx?

J

Transmitter aerial alignment is at least as important for maintaining contact as receiver aerial alignment, and we keep hearing how important it is to have the two receiver aerials at 90 degrees to each other. Dual Tx allows you to do this on the Tx as well.

Does it make any difference in practice? Probably only at extreme range in difficult conditions.

Am I willing to pay for the extra 0.1% security? Yes I am.
You probably are not, but I don't see any problem with each person making his own choice  .

Dick

Transmitter aerial alignment is at least as important for maintaining contact as receiver aerial alignment, and we keep hearing how important it is to have the two receiver aerials at 90 degrees to each other. Dual Tx allows you to do this on the Tx as well.

I can see that, good point

Does it make any difference in practice? Probably only at extreme range in difficult conditions.

We'll probably never know

Am I willing to pay for the extra 0.1% security? Yes I am.
You probably are not, but I don't see any problem with each person making his own choice  .

Mmmm, thats a bit harsh, I suppose I get a similar end result by placing 4 Rx's in my Boomerang Jet, money isn't the deciding factor for me. I am happy with my Spektrum system and the flightlog which confirms my signals are being received loud and clear.

J
Dick


[/quote]

.........Mmmm, thats a bit harsh, I suppose I get a similar end result by placing 4 Rx's in my Boomerang Jet, money isn't the deciding factor for me. I am happy with my Spektrum system and the flightlog which confirms my signals are being received loud and clear.

J

Sorry if it came across a bit harsh - it wasn't intended that way .

I was just pointing out that there many ways to get the results we are looking for - there is not room in my narrow fusealage (and expensive!) electric gliders for multiple receivers so I do it differently.

Dick

Sorry if it came across a bit harsh - it wasn't intended that way .

I was just pointing out that there many ways to get the results we are looking for - there is not room in my narrow fusealage (and expensive!) electric gliders for multiple receivers so I do it differently.

Dick

Noooooo problem.

J

Multiplex in my opinion arn't that great.
Ive an Sx 2.4ghz and ive noticed that channel 7 is jittery,ive tried 3 servos from ch7 rec outputand all jitter during operation!! im very disappointed.
Also setting up a MPX Cularis with the Sx,so motor is actually on the throttle stick is a bloody pain!
Who designs these radio's?Its certainly not by people who have to use them.

Hi Blade
I have some models with the throttle on the left stick, other with collective on the left stick, some with spoilers on the left stick.  I use the MPX EVO for those, no problems for me.
Once you get the idea that you put the control input on whichever stick you want, and assign that input to any output channel or any mixer it gets very easy to set up.
On my JR sets I can't get anywhere near that.

Multiplex in my opinion arn't that great.
Ive an Sx 2.4ghz and ive noticed that channel 7 is jittery,ive tried 3 servos from ch7 rec outputand all jitter during operation!! im very disappointed.
Also setting up a MPX Cularis with the Sx,so motor is actually on the throttle stick is a bloody pain!
Who designs these radio's?Its certainly not by people who have to use them.

I haven't got a 2.4 Sx but a 35 mhz, and all channels are fine, I'd return yours as being faulty.

As regards setting up so throttle is on throttle stick or slider with a 4 servo wing is pretty easy you just need to change the mode setting (modes 1 thru 8 available). I have a power plane with flaps and have done a setup like this and found it pretty straight forward to do.

Stuey have you seen that Spektrum seem to have Dx8 and Dx10 sets on the horizon?
Both with SD card model memories and telemetry...

NEW: Spektrum DX8 and DX10 | RC Heli Resource

Oh, did someone mention this book??

Er... What page is 2.4 on?

Agreed Frank.

Using a combination of Model Type/Mode for the particular model you're planning to fly, it's pretty much possible to get whatever set-up you're after. Having 8 possible modes to select from does help here.

As for the jittery output on ch7 mentioned in the earlier post, that's one for Mr. Ridley as a warranty job.

Re: A "what is good about Multiplex" thread - compared to spektrum

This, cos you cant drink and fly with any of those sparkly Japanese/Taiwanese sets.

We don't need to go into the programming arguments. Survival on a freezing cold morning is argument enough.

 

Charlie C

Nice one Charlie!

It's good to see it again.  

I see Spektrum also use the original aerial position for the 2.4ghz twig.

P.S. Just don't spill that coffee!!

Re: A "what is good about Multiplex" thread - compared to spektrum

This, cos you cant drink and fly with any of those sparkly Japanese/Taiwanese sets.

Never thought of that, I've been wrong all these years, it does have a use it's a tray / coaster.

J

Ah that's probably the delay with the profi 5000, they are developing the cup holder 

P.S. Just don't spill that coffee!!

it wasn't coffee in there!

No need Frank, the existing tray caters more than adequately for any such requirement.......

it wasn't coffee in there!

Shhhhhhhhhh.

 

CC

No need Frank, the existing tray caters more than adequately for any such requirement.......

So multiplex is the first (yet again) to offer Beverage Diversity.

I asked JR and Futaba to get me a diverse selection of japanese drinks, but they got all saki...

PDR

And so they should PDR.

You'll also notice there's full dual cup diversity too, not just reliance on a single unit.......

P.S. I doubt there will be much spare saki at all at the minute. I'd imagine most Toyota employees are hitting it hard.....

...with two straws, yes. I understand that the next development will include coffee perking feedback that can be programmed to trigger audio warnings, and even to deploy the crow-brakes to enable you to land quickly before the coffee gets cold.

PDR

As I understand it, that feature ought to be included on the Profi 5000 when it arrives.......    With of course constant (spoken) temperature readouts via the co-pilot module, so you'll know exactly how cold you're coffee is getting.

You two are just being saki. 

We've already done that one, a few posts back...

PDR

No need Frank, the existing tray caters more than adequately for any such requirement.......

Mode 1 - good man 

It's how I was taught W8, back around the time of the Roman Invasion. Most flew mode 1 at that time.

It's how I was taught W8, back around the time of the Roman Invasion. Most flew mode 1 at that time.

...and some still cling to these primative things even though they've long-since become obsolescent, just like outside plumbing, nationalised industries and IC model engines.

PDR

Primative or not PDR, it seems as effective as other modes!  

And yes, even outside plumbing had it's advantages, believe it or not........

But I'm glad to see you don't try to defend the archaic practice of using IC engines in models. There's hope for you yet...

 

PDR

But I'm glad to see you don't try to defend the archaic practice of using IC engines in models. There's hope for you yet...

 

PDR

well, if it's good enough for the full size....

Hope for me PDR?

Afraid not. I simply cannot break free from compulsively buying i.c. engines. Why, everything I fly has one fitted,  apart from a s/h Ripmax Spitfire I bought years ago to help a friend out who needed cash. That hasn't flown for almost 2 years.

The "advantages" of electric flight don't particularly strike me as advantages. I actually like the fuel, oil, mess and noise (four stroke, I don't do two strokes). I feel they give my models character and soul!

And I won't be buying a Toyota Prius either.    Mind you, they ought to be fairly cheap after the fuss has blown over. Anyone fancy a posh milk float?

And wot's wrong with a lacky band? (or two in a big un)   None of that noisy stuff or sparks flying about....   bah humbug....

But I'm glad to see you don't try to defend the archaic practice of using IC engines in models. There's hope for you yet...

 

PDR

Are they similar to steam engines?

They are John, but without the coal......

Speaking of which, whatever happened to Arthur Scargill? (for those not in the know, he started off with a little house and a big union, but finished with a big house and a little union)