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Rotaxed 01-31-2010 07:35 PM

Servo Wire Extensions
 
Are there any advantages using the braided servo extension wires with the 2.4 technology radios that are out? Thanks in advance ...


noahb 01-31-2010 11:05 PM

RE: Servo Wire Extensions
 
I believe the twisted was good for 72mhz, but for 2.4 I don't think it's necessary. However, I still go with twisted as I get all my extensions from TBM because they are pretty cheap in price.


sidgates 02-01-2010 04:37 PM

RE: Servo Wire Extensions
 
My understanding is that twisting is effective to reduce noise (spikes) on the servo signal line and probably is not concerned with the RF carrier frequency of the radio.

I have used a .001 cap from signal to ground right at the receiver decoder chip to slow down the rise time of the servo pulse and this was very effective in reducing servo jitter on very long servo leads.

KC36330 02-01-2010 04:56 PM

RE: Servo Wire Extensions
 
twisted wires reduce both transmitted (from the servo lead) and received (from outside sources) RF, it's just as important in 2.4 Gig as it was in 72 MHz, far too many people think 2.4 is immune to interference but that is only partialy true of the signal between the TX and RX link, the receiver is just as susceptible to induced noise as any other band receiver.

i saw a guy a few months back who had his 2.4 receiver strapped directly to his ignition module on a gas engine and swore up and down that it had to be a bad receiver causing his glitching because 2.4 is ROCK SOLID to interference and wasn't interested in hearing otherwise........:eek:

bigplumbs 02-02-2010 02:22 AM

RE: Servo Wire Extensions
 

ORIGINAL: KC36330

twisted wires reduce both transmitted (from the servo lead) and received (from outside sources) RF, it's just as important in 2.4 Gig as it was in 72 MHz, far too many people think 2.4 is immune to interference but that is only partialy true of the signal between the TX and RX link, the receiver is just as susceptible to induced noise as any other band receiver.

i saw a guy a few months back who had his 2.4 receiver strapped directly to his ignition module on a gas engine and swore up and down that it had to be a bad receiver causing his glitching because 2.4 is ROCK SOLID to interference and wasn't interested in hearing otherwise........:eek:
2.4 has far less problems with 'noise' as it operates on a frequancy that is many times higher than a lot of the interference we get in our planes.

Dennis

KC36330 02-02-2010 03:14 AM

RE: Servo Wire Extensions
 


ORIGINAL: bigplumbs

2.4 has far less problems with 'noise' as it operates on a frequancy that is many times higher than a lot of the interference we get in our planes.

Dennis

again, the induced RF feedback that the receiver sees from the servo leads has absolutely NOTHING to do with the transmit/receive frequency.


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