PPM - PCM - HRS

PPM - PCM - HRS (Full Version)

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Osirisf16 -> PPM - PCM - HRS (5/3/2008 12:23:23 PM)
Hey guys, i have some questions. In a month, i will have my future 4PK [:D] I was browsing a little untill i come along with these parameters. What is PPM, PCM and HRS? I don't have an idea. The 4PK has the ability to change between these 3, but which is most suitable for me? What are the advantages and disadvantages of each one, and what are you using now? Which is the best? [8\|]

systemlord -> RE: PPM - PCM - HRS (5/3/2008 3:54:02 PM)
quote: ORIGINAL: Osirisf16 Hey guys, i have some questions. In a month, i will have my future 4PK [:D] I was browsing a little untill i come along with these parameters. What is PPM, PCM and HRS? I don't have an idea. The 4PK has the ability to change between these 3, but which is most suitable for me? What are the advantages and disadvantages of each one, and what are you using now? Which is the best? [8\|] HRS uses Futaba's Spread Spectrum technology, one catch though you have to use all digital servos. If you use an analog servo in HRS you will kill the servo, HRS is Futaba's High Response System which is the only mode that permanently stores your servos fail safe position.

snowbl!nd -> RE: PPM - PCM - HRS (5/3/2008 4:07:08 PM)
PPM - Pulse position modulation http://en.wikipedia.org/wiki/Pulse-position_modulation PCM - Pulse code modulation http://en.wikipedia.org/wiki/Pulse-code_modulation

Osirisf16 -> RE: PPM - PCM - HRS (5/3/2008 4:47:29 PM)
quote: ORIGINAL: systemlord quote: ORIGINAL: Osirisf16 Hey guys, i have some questions. In a month, i will have my future 4PK [:D] I was browsing a little untill i come along with these parameters. What is PPM, PCM and HRS? I don't have an idea. The 4PK has the ability to change between these 3, but which is most suitable for me? What are the advantages and disadvantages of each one, and what are you using now? Which is the best? [8\|] HRS uses Futaba's Spread Spectrum technology, one catch though you have to use all digital servos. If you use an analog servo in HRS you will kill the servo, HRS is Futaba's High Response System which is the only mode that permanently stores your servos fail safe position. So HRS would be the best choice? What do you mean failsafe position? They are gonna stay in the position the last time were? That's bad if you were in full throttle [:D] What about the other modes? Sorry snowbl!nd but i don't understand much of this you gave me [8\|] I need something in simple english first. Can't understand this if i don't even know what is its job, right? [)]

systemlord -> RE: PPM - PCM - HRS (5/4/2008 6:33:30 AM)
quote: ORIGINAL: Osirisf16 quote: ORIGINAL: systemlord quote: ORIGINAL: Osirisf16 Hey guys, i have some questions. In a month, i will have my future 4PK [:D] I was browsing a little untill i come along with these parameters. What is PPM, PCM and HRS? I don't have an idea. The 4PK has the ability to change between these 3, but which is most suitable for me? What are the advantages and disadvantages of each one, and what are you using now? Which is the best? [8\|] HRS uses Futaba's Spread Spectrum technology, one catch though you have to use all digital servos. If you use an analog servo in HRS you will kill the servo, HRS is Futaba's High Response System which is the only mode that permanently stores your servos fail safe position. So HRS would be the best choice? What do you mean failsafe position? They are gonna stay in the position the last time were? That's bad if you were in full throttle [:D] What about the other modes? Sorry snowbl!nd but i don't understand much of this you gave me [8\|] I need something in simple english first. Can't understand this if i don't even know what is its job, right? [)] If for any reason your transmitter loses contact with the receiver, you can program the servos to go to full braking and the steering servo pointing your model straight ahead. Heres a video link that explains Futaba's Spread Spectrum technology. http://2.4gigahertz.com/

SAVAGEJIM -> RE: PPM - PCM - HRS (5/7/2008 5:24:20 PM)
quote: ORIGINAL: Osirisf16 Hey guys, i have some questions. In a month, i will have my future 4PK [:D] I was browsing a little untill i come along with these parameters. What is PPM, PCM and HRS? I don't have an idea. The 4PK has the ability to change between these 3, but which is most suitable for me? What are the advantages and disadvantages of each one, and what are you using now? Which is the best? [8\|] PPM is the usual plain old FM transmission mode, PCM is a better signal transmission mode (as described in the link attached by snowbl!nd). HRS originally was used with PCM mode, but now, with 2.4GHz in use by Futaba, HRS also exists in the 2.4GHz signal transmission as well.

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