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heli vs. aircraft 7ch radio difference

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Old 08-16-2006, 05:26 AM
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AKFireMedic
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Default heli vs. aircraft 7ch radio difference

I am recently getting back into flying after about a 10 year hiatus. I'm looking at getting either a JR or Futaba 7channel radio. I;m leaning towards the JR XP7202 and I noticed that it comes in aircraft and Heli versions. What is the difference? Is it programming or just the ratchet on the throttle stick? I am getting the radio for planes now but hope to have a Heli soon as well and was hoping to use the same transmitter for both. Is this a resonable expectation or should I just plan on 2 different radios? Thanks.
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Old 08-16-2006, 08:23 AM
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Default RE: heli vs. aircraft 7ch radio difference


ORIGINAL: AKFireMedic

I am recently getting back into flying after about a 10 year hiatus. I'm looking at getting either a JR or Futaba 7channel radio. I;m leaning towards the JR XP7202 and I noticed that it comes in aircraft and Heli versions. What is the difference? Is it programming or just the ratchet on the throttle stick? I am getting the radio for planes now but hope to have a Heli soon as well and was hoping to use the same transmitter for both. Is this a resonable expectation or should I just plan on 2 different radios? Thanks.
Another Firefighter? Just curious as I'm a recently retired Firefighter/Paramedic...

I can't speak to specifics on JR as I don't use them, but might I suggest you consider going to a 9 channel radio if you think you'll be staying with the hobby? The reason being that once you get to slightly larger aircraft with dual elevator servos, the Futaba 7C does not natively support that configuration so you have to use Y's (not a spiffy solution) or matchboxes for that. There are other functions in the 9C not found in the 7C as well. Since Futaba dealers don't normally sell just tx's, if you want just the tx Chief Aircraft up in Oregon will sell you just a tx.

Now for the differences, and again I'm just talking about JR from what I've found while looking at radios, not actual experience with them.

The biggest differences are the throttle ratchet as you noted, but I think the JR has different switch assignments between the two radios as well. That's not an issue with the Futaba as you can assign any switch any function which the JR will not do. Also if I understood correctly, JR provides either heli or airplane programming but not both in the same tx. That may only be true of the upper end tx's, can't say for sure, but the Futaba radios provide programming for both heli's and airplanes in the same radio on the 9C.

There are quite a few members who've used both radios and can give you some first hand experience, but basically I'd say either radio will get the job done quite nicely but I would consider the 9 channel in which ever brand you decide on.

GOOD LUCK ON YOUR RETURN AND HAVE FUN!
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Old 08-16-2006, 09:40 AM
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Default RE: heli vs. aircraft 7ch radio difference

Edited........
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Old 08-16-2006, 03:11 PM
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Default RE: heli vs. aircraft 7ch radio difference

Yes, I'm a professional Firefighter/Paramedic with Anchorage Fire Department here in AK. It's great to see some more sickos on here like me! I have read about the Futaba 7c not supporting mulitple servos for elevators but I am having a hard time imagining needing that feature any time soon?? Of course, I also know how deep into this kind of thing I can get really quickly! I am still leaning to the JR 7202 partially because I am more familliar with JR stuff and partially because I like the synthesized feature of it. I'll shoot JR a message and see what the difference is. Thanks a lot!
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Old 03-15-2013, 12:44 PM
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Default RE: heli vs. aircraft 7ch radio difference

I was about to start a new thread when I saw this. So a helicopter and airplane radio are basically the same except for how the toggles and gimbals are assigned or how they move? Just checking before I buy one. Need something for a submarine. I hear I need a surface radio but haven't seen any difference except that the controls work different between radios and I need mhz. Not Ghz.

thanks,

Nick
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Old 03-15-2013, 01:22 PM
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Default RE: heli vs. aircraft 7ch radio difference


ORIGINAL: badassissimo I was about to start a new thread when I saw this. So a helicopter and airplane radio are basically the same except for how the toggles and gimbals are assigned or how they move?
Just checking before I buy one. Need something for a submarine.
I hear I need a surface radio but haven't seen any difference except that the controls work different between radios and I need mhz. Not Ghz.
thanks, Nick
1. Heli &Acro Tx are the same units except that a ery few brands (notably Futaba) have switches in different places
- very easy to change if ever required.
Majority of modern Tx have user assignable switches so no longer matters.

2. The lower the frequency, the further the range on/under water.
Consider how whales, dolphins etc communicate - very low frequency
. Whale Songs - listen.
(more info under "Cetacean watch - Dolphin, Orca and Whales + Kelly Tarlton's." bottom of my webpage)

Reason most RC boats, yachts etc still use 27 & 29 MHz, good RCG thread
. Frequencies and Controlling RC Subs

Much more information available under sub section
"Boats, Yachts, Submarines, Warship Combat and Nautical reviews"
and below
"Radio Systems, Accessories, Alterations and FAQ" at
Alan's Hobby, Model & RC FAQ Web Links

Alan T.
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Old 03-15-2013, 01:32 PM
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Default RE: heli vs. aircraft 7ch radio difference

Sweet. I'll look at that one. I'm hoping I can get a good 72 mhz transmitter and gut a 27 mhz transmitter so I can have the frequency. If I can't, I hear 75 isn't terrible for subs and I was going to send a radio to radiosouth for retuning if no one here can.

Nick
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Old 03-15-2013, 04:28 PM
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Default RE: heli vs. aircraft 7ch radio difference

Also if I understood correctly, JR provides either heli or airplane programming but not both in the same tx. That may only be true of the upper end tx's, can't say for sure, but the Futaba radios provide programming for both heli's and airplanes in the same radio on the 9C.
Thats not true, the 10x was either or but any of the modern radios are dual or triple airframe type (H, A, Glid) In fact, thats what the 3 in 9303 means (9 channel, 30 memory, 3 aircraft type)
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Old 03-15-2013, 06:20 PM
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Default RE: heli vs. aircraft 7ch radio difference

Wrong thread
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Old 03-15-2013, 08:19 PM
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Default RE: heli vs. aircraft 7ch radio difference

For surface (and under-the-surface) vehicles you will need to use 75 MHz.

The FCC has designated 72 MHz for use in aircraft only.
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Old 03-16-2013, 05:34 PM
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Default RE: heli vs. aircraft 7ch radio difference

Cool. Thank you all.

Nick
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Old 03-16-2013, 06:19 PM
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Default RE: heli vs. aircraft 7ch radio difference

The Airtronics RDS8000, and the SD10G provide both Aircraft, and heli modes, and the SD10G also has several Sailplane Modes as well..  

I have both of these transmitters, and really like thier ease of programmability and capabilities.. take a look, and compare features and price points, I think you will be pleasently surprised!!

Craig.

P.S.  No, I don't work for them, just love thier systems! and yes, I have other systems, such as the JR9303, Hitec optic 6, among others!



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Old 03-16-2013, 06:24 PM
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Default RE: heli vs. aircraft 7ch radio difference

I have both the air and heli futaba 7c. Both have the same software. The air defaults to air and the heli defaults to heli.
They will support dual elevator servos and dual aileron servos. They both have the same switches.
With the top switches on opposite sides. Plus the ratchet throttle on the air tx.
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Old 03-16-2013, 07:20 PM
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Default RE: heli vs. aircraft 7ch radio difference

Keep in mind that Badassissimo revived this old thread to operate a submarine, not an airplane or a helicopter. For submarine use, I doubt that any 2.4 radio would work. And I'd bet that 27 mhz would work better than 75 mhz for a submarine.
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Old 03-17-2013, 12:30 AM
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Default RE: heli vs. aircraft 7ch radio difference

Ya, I revived it to find out about how the controls work. The one I bought is an airplane 72 mhz. I'll get it retuned to 75.
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Old 03-17-2013, 05:28 AM
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Default RE: heli vs. aircraft 7ch radio difference

Ya, missed how old this thread was and that it was revived. Yes, I need to pay more attention.
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Old 03-17-2013, 07:24 AM
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Default RE: heli vs. aircraft 7ch radio difference

Durn, I am slipping....  this is the second "old thread" that I thought was a new one, and posted in..  

Craig.
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Old 03-17-2013, 09:54 AM
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Default RE: heli vs. aircraft 7ch radio difference

Badassimo, what radio did you buy?
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Old 03-18-2013, 06:29 PM
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Default RE: heli vs. aircraft 7ch radio difference

I bought this one: Hitech Eclipse 7 channel FM TX with Spectra Module

I'm looking forward to it. I need a receiver though.
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Old 03-19-2013, 07:59 PM
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Default RE: heli vs. aircraft 7ch radio difference

The old Hitec Eclipse radios were pretty good and should work great for a submarine.

Hitec still shows a 75 MHz module on their web site that allows you to choose any of the 75 MHz frequencies.
http://www.hitecrcd.com/products/sur...hz-module.html

I'm not aware of any 27 MHz modules that would fit the Eclipse.
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Old 03-19-2013, 09:52 PM
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Default RE: heli vs. aircraft 7ch radio difference

It might not matter if it can fit. There's a slight chance I have to build a remote because I need one more potentiometer. I may just skip on it though.
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