V22 TH2 tandem mixer

[v22chap]

Yes ,, I told you several post back that I am using it with a JR 9303 with XPS 2.4 system on it and having good luck with it .:thumbup:

[tungym]

V22chap,

Please forgive my stupid question. Is DSX9 a complete new circuit design, or just a 9303 with a 2.4G module on it? The matter is that the transmitter must give out proportional signal in the first 6 channels, rather simply said as a knob.

As Joe said, the CH5 must be connected to the first 6 channel in order to let TH6 works. This annoys me very much as such basic requirement has never been displayed in techproducts page. Many new transimtters can send proportional signal without a knob.

I am quite surprised of this answer "If the DX7 won't work then get a radio that does. It's that simple - problem solved ".

How about if I say : "If TH2 won't work then get a mixer that does."

No offence but that is the fact.

[v22chap]

Tungym
I can't answer that for sure ... but I CAN'T see JR making a whole different radio ... just to stick in the spectrum 2.4 technology ... so I would say it is the same radio ,,, just with the 2.4 spectrum built inside ,,, not an outside module ...

or for that matter ... pick up a used regular 9303 (and they are cheap right now saw one for 250.00 on one forum ) and then add the 2.4 spectrum module ... then you know it has the knob proportional and the 2.4 ... the only thing is you have the wire out the back .So big deal you don't have the latest and greatest thing from JR .. it still works the same ...and there are threads on how to put the wire inside and the antena where it use to be .... and it is not all that hard .

The DX 7 will be easy to sell ...and the programing that the 9303 can do is far superior to the DX 7 ...so you can do more with a VTOL within the radio itself .

In Joes defense ... it is hard to even give all the guys that had input to his design ,,,back in 02 for the TH-2 ... I didn't get all that I wanted out of it ... and I am sure neither did the rest .... it is hard to think of everything ..It is also hard ..not understanding programing to even ask for the right thing to be added :arggg:.
I also figure he has not sold a lot of them ( since not to many guys are into VTOL's ) ...so it would be foolish to take time and money to change it for just a few people ...as it is he is probably losing money now on his time invested .


I am quite surprised of this answer "If the DX7 won't work then get a radio that does. It's that simple - problem solved ".

And how many other manufactures ..say right in there manual ... this and this is needed to make this product work .... buy this and this . right up to micro soft computers and programs ..

I think he is being honest with you and telling you the DX radios (which weren't even thought of back in 02) won't work with the TH-2 ,get one that does is his best honest answer .

I don't think any mixer or other electronic device will make an on / off switch to be proprotional

You might email him and talk to him about maybe getting the programing from him so you could maybe change it more yourself ... not sure about this ... but it is worth a try . Seems I asked this before ...as my son is a software programer for Northrop Grumman and he said yes he would ,,.but my son said no as he was way to busy with the new job at Northrop to play with it .
Hope this helps some
Larry

[joe@tech-mp]

tungym


This is from the VTOL software online manual (near the bottom of the page).


The TH-2 synchronizes with the pitch channel (CH-6 on most radios) and expects it to be the last pulse
(that it "sees") in the data frame sent by the transmitter. Also, A gyro should not be used on this channel.
It wouldn't make sense anyhow.



IMO: This about covers it.....


Joe

www.techmodelproducts.com

[v22chap]

Tungym
In rereading your post #27 ,, I see something that I didn't see before

It isn't that the JR 9303 radio has a rotary / proportional knob on channel 5 ( it is by default the landing gear ... up or down / on or off ) ....

"BUT THAT YOU CAN PROGRAM" ch 5 to run on several different channels that "ARE" rotary / proportional with these type of radios.

I looked up the DX 7 manual and the DX 7 "CAN'T " do the switch chaning to do this ...even if it had a rotory knob or channel .

++++++++++++++++++++++++++++++++++++++++++++++++++ +++++
The futaba T7CHP you have should be able to do this ...,,if I read the online manual right .
It should atleast do it in acro mode ... page 14 on the chart at the top it talks about in the astricas area at the bottom of the chart ,,,,,,about mixing ch 5 to 6 or 7 ... channel 7 being the rotary knob ...


Go to page 57 (heli mode setup page in the manual) and look at "Auxilary Channel assignments" ,,and it tells you to go to acro page 31 which shows you how to setup the mix ... I would assume this means you can assign ch 5 to ch 7 which is a rotary / proportional knob ......Just a thought to play with .
Good luck

[tungym]

I pause the project for a few month as I indulge myself in the gas engine plane.

Eventually, I can make CH5 heli/acro mode switching of the TH2 V22 mode work with DX7, after some treaking in the Tech-link console. Previously I can only succeed in T7CHP acro mode.

I start hovering my V22 prototype and 45 degree conversion with success. Hovering is pretty stable as I can hover the V22 within a 4x4 feet tile area.

I am using 4s 2200 lipo, 1500kv motor and 15T pinion. Headspeed around 2000~2200 (I want higher), as the V22 blade (260mm) is much smaller than my previous chinnok (325mm) .

Hovering current is 15A

Unlike my previous Chinook using E_sky gyro (HH mode) in Yaw stabalization, I have to connect the sensing wire to make it in Rate mode. Otherwise, the V22 will hunt/ wag L/R even the gyro sensitivity is set low.

CH5 is Y-cabled with the pod rotation metal gear servo.

I am on my way to finish it with a nice fuselage, before I abuse and crash it.

[tungym]

Maiden video

270mm blade, a bit underpower

http://www.youtube.com/watch?v=18SKHX8Nbbw