2.4GHz to 75MHz transmitter

[cheapsub]

Not going to pay a dime over 40!
evil bay ask for 50.

[He Who Shall Not Be Named]

Screw them: Airtronics was always the A-hole player in the game; they started life ****ing with servo-receiver polarity! A real **** move, just to make their gear incompatible with other devices. I wish I had a buck for each receiver and servo I fried when plugging into Airtronics gear!

Screw 'em. Make it Futaba and Hitech compatible and you're golden!

A pox on the House Airtronics, I say! May they all go up in a puff of magic-smoke!

David

[cheapsub]

Some update on the Novak dial a sink.

Opentx transmitter OK, +/-


one cheap arduino 6 channel DIY ppm OK (+)

transmitter with Futaba RF bay.
WILL Have to replace the pins in the RF bay to make it fit.
Hot wire and training port , Hitec (optic 6) , OK +/-

Yes and NO. PPM Signal Form trainer port.
Only model that works.
6DA, FP-T6VH, T6YF, FP-6VAU.

Not working.
SKYSPORT
T6EXA, 6XM, T6Y, FP6NFK, T4YF.

These are the low end transmitter, thinking about replace the main board with a arduino with basic 6 to 8 channel functions. Or let it be.

Got more 4 channel transmitter coming in, will see.

[cheapsub]

Forget the pinout of the Novak module.
some how the Airtronics module smoked one of my old JR transmitter.
THIS is based on Airtronics M8 transmitter
1. 9.8V
2. ANTENNA
3. GROUND
4. 10V
5. 10V
6. PPM SIGNAL

[Kim Sleep]

Actually, Im starting to say...use 27Mhz...AND LET THOSE PLANES RAIN FROM THE SKY!!

[He Who Shall Not Be Named]

Actually, Im starting to say...use 27Mhz...AND LET THOSE PLANES RAIN FROM THE SKY!!

I'm with you oh, Great Beast from the Great Snowy North. Trouble is, 27mHz gear is so old that the transmitters don't have the bells-and-whistles we've become accustomed to here in the Duck Dodgers year of the twenty-first-and-a-half century.

A thought: Maybe some enterprising chap will cannibalize old 27mHz transmitter RF sections onto 'new' 2.4gHz transmitters, then you would have something! -- a Frankenstein transmitter and an old reliable 27mHz receiver.

However, now that I think of it, most of that old gear had AM modulation off the transmitter encoders, and required the like decoding at the receiver. So, won't work in this world of PPM, CPM, FM, and Klystron-relay coding of the signal. Or a plug-in board at the receiver to decode the transmitters mode of modulation?

**** it! This is getting stupid! ... never mind. I had my day of dodging FCC 'milk trucks'. Enough of that.

David
Resident Idiot

[Sinksalot]

These modules are nice. And no I dont have any more right now. But they worked nice with Novak 27mhz receivers. Plus They worked great in Futaba 8U and 9C radios

[Subculture]

A lot of radios TX's used different PPM shift patterns- positive or negative. This was a way of trying to lock the buyer into using the brands receivers. Computer sets usually have the facility to change the shift pattern depending on the receiver you're using.

[cheapsub]

Kim Sleep ask about the futaba RF module.
I am try to get everything at one place.

The Novak turned the futaba single to (+) shift so now work with JR receiver, have to add a single inverter. For the futaba Rx to work.

Trimming inside of the module bay for pin alignment. A new pwb ...

Hitec Prism 7 is easier, reprogram the shift, replace the small pwb.
Thinking try to find a way that you could use the standard module and synthesized module.

[cheapsub]

I think I got it!
Futaba FP-T7UAP (only one I have on hand for dissecting) Transmitter with a module bay. But the Futaba RF module no longer can be use.

And Futaba T6EXA, T4YF WITH rectangular trainer port.
FP-T6NFK, T6YG round trainer port.

[cheapsub]

Got a 27MHz synthesized novak module installed in my ER9X transmitter, finded out even in 27MHz receiver it has (+) & (-) shift too, AM or FM RX used same type of crystal.