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futaba 9c?

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Old 03-26-2016, 04:16 AM
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WhiteRook
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Default futaba 9c?

where can you get the right 9 channel reciever for this radio , tower has none , servo
city none , its an R149DP , Only used i guess.
Old 03-26-2016, 05:27 AM
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scale only 4 me
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Yeap,, do and save an ebay search,, I'm sure new (un-used) ones pop up once in a while,,, good luck
Old 03-26-2016, 11:12 AM
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WhiteRook
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yea theres one on flea bay , but with wrong crystal
Old 03-26-2016, 11:51 AM
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You're aware that's only an on/off channel, no mixing or anything, just a toggle, I don't even think you can set the end points on it.

All I ever used it for was lights or a gasser kill switch
Old 03-26-2016, 08:32 PM
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You can use a non-PCM receiver with that transmitter. It does have both a PCM AND FM mode, only difference is, IIRC, the failsafe won't work in FM mode
Old 03-27-2016, 04:32 AM
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WhiteRook
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it just needs to be a 9 channel non pcm , whats the sense of having a 9 channel with one 7 channel reciever, right ?
Old 03-27-2016, 05:04 AM
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The hitec FM RXs worked with Futaba FM systems,,
I wonder if this one is compatible too,, can't see why not, might be worth a little research
http://www.radicalrc.com/category/Receivers-72mhz-42 (scroll down)

good luck
Old 03-27-2016, 06:04 AM
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As another FYI the 9th channel is only available in PCM mode
Old 03-27-2016, 08:49 AM
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WhiteRook
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ebay is not letting me purchase , last time i used it , i didnt have to have a stupid password to
buy , unless thers a prob with the site. yupp , i would want the full 9 channels , have to go pcm , by the way happ easter, too bad its not on a monday
Old 03-27-2016, 03:53 PM
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Which Channel?, how many do you want, I think I have at least 5.
Old 03-29-2016, 08:21 AM
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Remember, it's OK to change crystals in a receiver to make it whatever channel you want. It's only illegal to change crystals in the transmitter.
Old 03-29-2016, 11:55 AM
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Originally Posted by JollyPopper
Remember, it's OK to change crystals in a receiver to make it whatever channel you want. It's only illegal to change crystals in the transmitter.
Huum?? Then why does Tower still sell TX crystals?

Changing it off the allowed RC designated range would be illegal,, swapping crystals between legal channels,, I don't think so
Old 03-29-2016, 12:09 PM
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Nope, unless you have the technical capabilities to ensure it remains on frequency and doesn't bleed over into the commercial channels between the rc channels, you can not legally change the transmitter crystal.
Old 03-29-2016, 02:10 PM
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WhiteRook
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chris , need a channel 38 crys for the r149DP reciever
Old 03-30-2016, 02:53 AM
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Originally Posted by scale only 4 me
Huum?? Then why does Tower still sell TX crystals?

Changing it off the allowed RC designated range would be illegal,
, swapping crystals between legal channels,, I don't think so
Originally Posted by BarracudaHockey
Nope, unless you have the technical capabilities to ensure it remains on frequency and doesn't bleed over into the commercial channels between the rc channels, you can not legally change the transmitter crystal.
Hum,, didn't we just say the same thing?
Old 03-30-2016, 04:33 AM
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You said that changing a transmitter between RC channels is legal, when in fact it is not, unless you have the technical means to ensure that the transmitter is on frequency and not bleeding over to other channels.
Old 03-30-2016, 05:52 AM
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Originally Posted by BarracudaHockey
You said that changing a transmitter between RC channels is legal, when in fact it is not, unless you have the technical means to ensure that the transmitter is on frequency and not bleeding over to other channels.
If it is illegal, how come you could by a Futaba synthesized module to dial in any TX channel you wanted?
Old 03-30-2016, 05:54 AM
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Originally Posted by WhiteRook
chris , need a channel 38 crys for the r149DP reciever
Sorry I don't have a 38 crystal.
Old 03-30-2016, 06:14 AM
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A complete module has been tested to prove it complies with the FCC transmitter specifications. The user does not have access to the frequency-determining component, and so they can use it. A synthesized module is not the same thing as a crystal.
Old 03-31-2016, 04:42 AM
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Originally Posted by Bax
A complete module has been tested to prove it complies with the FCC transmitter specifications. The user does not have access to the frequency-determining component, and so they can use it. A synthesized module is not the same thing as a crystal.
Then why do you still sell these to the general public?
http://www3.towerhobbies.com/cgi-bin...=LXEKZ2**&P=ML
http://www3.towerhobbies.com/cgi-bin...=LXH282**&P=ML

And what about the radios that were designed for easy of TX crystal substitution for RC car/truck guys that raced. like the Magnum Sport, they were design with the crystal slot right on the side or back for quick change. I never read any FCC warnings from you guys when I dropped coin on a TX crystal.
Old 03-31-2016, 06:31 AM
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Car racers illegally changed channels on their transmitters. Futaba made crystal sets available because there are people out there who are fully-qualified to perform repairs upon almost any kind of electronic equipment, including transmitters.

Transmitters that had the transmitter crystal too-easily accessible were rejected by the FCC unless there was a permanent way to secure the crystal. Glue was used for many, or screws to hold the cover on. If you have to use tools to access the crystal, then the FCC will approve the transmitter for use.

The FCC regulation states that the user may not have access to the frequency-determining component. This really means casual access, and if you need tools to get to it, then access is considered to have been denied. Even the glued-in crystals needed to be grabbed by long-nose pliers or hemostat to get enough grip to pull them loose. We saw many a crystal case with plier marks and crushing as a result of being pulled out.
Old 04-01-2016, 09:42 AM
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WhiteRook
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Default futaba R149DP CRYSTAL FUTABA 9C

Bill , i need a FUTL5838 FRC 838 FM DC RX Crystal HI 38

TOWER doesnt have one , servo city no , tower can backorder one , but i may never get it . any solutions ?, i have a 7 channel 148DP , WILL the crystal work in the 149?
both are PCM 1024 ?



Thanks
Old 04-01-2016, 09:54 AM
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WhiteRook, you may be better off just buying the 2.4 module and a receiver set for your 9C. I'm thinking about doing so, either that or sending my radio set to Radio South and having everything updated to the channel I want it to be on. Right now, my stuff is on 75MHz, not usable for aircraft
Old 04-01-2016, 01:11 PM
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Originally Posted by WhiteRook
Bill , i need a FUTL5838 FRC 838 FM DC RX Crystal HI 38

TOWER doesnt have one , servo city no , tower can backorder one , but i may never get it . any solutions ?, i have a 7 channel 148DP , WILL the crystal work in the 149?
both are PCM 1024 ?


Thanks
Yes, you can move Futaba crystals between receivers, as long as the the receivers are both Hi Band or both Low Band (which should be marked on the receiver) or some R149DPs can use both Hi Band and Low Band crystals. Channel 38 is Hi Band so as long as the 149 DP is Hi Band or the newer one that works on any band, you'll be OK.
Old 04-01-2016, 01:33 PM
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Just to be clear, there's nothing physically different so if you have them tuned you can use whatever channel you want to


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