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HelicopterComputer Flight SimulatorsOther › XTR and 9chp
12-02-2005 11:29 AM  12 years agoPost 1
colin421guns

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nfld Canada

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I think I read on her some where that you could modify the cable to stop the Tx from transmitting while using the sim. I opend the connector that plugs in to the reciever and unsoldered the two pins that where soldered together and that solved the problem with the Tx turning on as soon as I pluged in the cable but it still transmitts. Is there another mod I can do to force the Tx from transmitting with the module still in the Tx.

Colin

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12-02-2005 12:07 PM  12 years agoPost 2
rudyr

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Gardena Ca USA

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From what I read it says bridging 4 and 5 turns the transmitter on BUT there is no HF meaning no transmition. Is this correct. I also would rather not constantly remove my RF box.
Rudy

If you haven't done it 3 times your just getting started

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12-02-2005 12:57 PM  12 years agoPost 3
Pelos

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Bizkaia (Spain)

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Many people says that, but in my particular case, does not work that way. (note: mine is european/robbe FF9 - 9CPH).

Mine turns on when inserting plug with pins shorted, but does NOT turn off transmission, so I have to remove module.

Extrange thing is that when I connect dsc cable (not sim cable) that has pins shorted too (same layout than sim cable), the tx does not transmit, so I wonder if the receiver is doing something when connecting dsc that the simulator cable does not. my receiver is pcm 9 channels (don't remember it's name)

Is there a life outside the sim?

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12-02-2005 02:06 PM  12 years agoPost 4
pH7

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Sterling Heights, MI - USA

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THIS LINK at the Reflex web site shows the correct wiring for the Futaba square plug. This is the way it is done from the factory and when I plug it into my 9CHP the transmitter power comes on, but the other LED labeled RF does not, so the module is not powered.

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12-02-2005 03:22 PM  12 years agoPost 5
colin421guns

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nfld Canada

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Before I modified mine. it looked just as the one in the link above.
But it still transmitted. I unsoldered the jump but now it won't come on buy it's self when the cable is pugged in. That's a good thing cuz it makes it easier to switch from PCM to PPM. My heli has a pcm reviever and I must switch to PPM to get the sim to work. It still transmits in any case and I must remove the module to use the sim.
I wish I didn't have to do that.

Colin

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12-02-2005 03:34 PM  12 years agoPost 6
smegs

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Hacienda Heights, CA

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Theres a cable where you can leave the Frequency box plugged in on the 9c without you being scared to damage it. When using the Reflex. Here's the link where to buy the cable.
http://www.fxaeromodels.com/product...4dae9b862193dca

I hope this will help you guys.. I have one and it works great.

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12-02-2005 04:34 PM  12 years agoPost 7
colin421guns

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nfld Canada

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Thanks for the link but what is so special about that cable?
and why doesn't Reflex make a cable of simular construction.
I'm sure it's just a combiation of proper wiring and jumping pins.
If I knew the proper combinatiom I'm sure I could fix this in about 3 minutes.

Colin

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12-02-2005 04:51 PM  12 years agoPost 8
smegs

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Hacienda Heights, CA

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I know there might be a easier fix. But, buying a cable sure beats a chance or shorting something out. By accident.

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12-02-2005 05:25 PM  12 years agoPost 9
rudyr

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Gardena Ca USA

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Now I feel like a IDIOT. Powered mine on with reflex cable. Red led is on showing power, but green is off unless I put the transmitter switch in on position. I checked this with a receiver and servos and it does not transmit unless the transmitter switch is in on position. Is it possible that by disabling the automatic power on and forcing it to use the transmitter power switch, it automatically turns on the RF side of the transmitter. I hope I make sense.
Rudy

If you haven't done it 3 times your just getting started

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12-02-2005 05:37 PM  12 years agoPost 10
colin421guns

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nfld Canada

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So what you are saying is that when you plug in your XTR cable the power light's up AS WELL as the RF light but it DOES NOT transmit.
Is this a correct statement.

Colin

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12-02-2005 06:46 PM  12 years agoPost 11
pH7

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Sterling Heights, MI - USA

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I should have clarified my earlier post. I wired my own cable, but did it just as shown in the link in my earlier post. In my case on my 9CHP, when I plug the cable in the Power LED comes on, the RF LED does not. So I believe if you buy the cable made by Reflex, it will be identical to mine and would work OK for me. Why Colin's cable with the jumper works differently, I can't say.

Colin, I would say if your RF LED is lit, it is transmitting.

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12-02-2005 10:11 PM  12 years agoPost 12
rudyr

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Gardena Ca USA

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When I plug in the reflex cable. Power light comes on. Transmit light does not unless I turn The switch on the transmitter to the on position. With the light off it definitely does not transmit.
Rudy

If you haven't done it 3 times your just getting started

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12-02-2005 11:04 PM  12 years agoPost 13
colin421guns

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nfld Canada

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I'll resolder pins 4 and 5 again tomorrow and double check if the RF light comes on or stays off.

Thanks for your input so far guys.

Colin

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12-03-2005 07:22 PM  12 years agoPost 14
colin421guns

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nfld Canada

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Well I too feel like and idiot.
I just resoldered pins 4 and 5 and sure enough when plugged into the transmitter, the power comes on automatically and the it doesn't transmit.
So with the cable wired and jumped as shown in the link above you can leave the RFmodule in the TX. The power light will be on but the RF light will be off.

Case closed. Thanks for your help on this guys.

Colin

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