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Servos for SFHSS

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Old 06-14-2012 | 01:07 PM
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Default Servos for SFHSS

I received my new T8J transmitter on Monday. Now I have heard that SFHSS mode operates <u>only</u> with digital servos. Is this true? The manual seems to indicate that the included receiver can be used with <u>any</u> J-connector equipped servo.
Old 06-14-2012 | 01:48 PM
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Default RE: Servos for SFHSS

You can use ANY servo on the R2008SB receiver. You must use S-Bus servos on the S-Bus, or an S-Bus decoder for non-S-Bus servos on the S-Bus.

Don't know where the idea comes from that only digital servos will work with an SFHSS receiver.
Old 06-14-2012 | 02:03 PM
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Default RE: Servos for SFHSS

Thanks, Bax

I was <u>really</u> not interested in changing over all my servos in order to use this Tx.




Old 06-14-2012 | 05:30 PM
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Default RE: Servos for SFHSS

Bax,

Sorry to nitpick here, but after re-reading your post; could I get some assurance that it is safe to use analog servos with the R2008SB receiver in <u>SFHSS mode</u>?

Thanks
Old 06-15-2012 | 07:42 AM
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Default RE: Servos for SFHSS

Can't make it any more clear, but I did an edit of the post.
Old 06-15-2012 | 09:23 AM
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Default RE: Servos for SFHSS

I'm sorry, let me try to make my question more clear and specific.

Can you safely use <u>ANY</u> servo on the R2008SB receiver with the 8J transmitter in <span style="text-decoration: underline;">either</span> FHSS mode or S-FHSS mode?

Thanks
Old 06-15-2012 | 11:51 AM
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Default RE: Servos for SFHSS

This is being way over thought. You can use ANY regular servo, digital or analog with that receiver. When we say "that receiver", that means receiver. Mode is irrelevant. If we were going to mention a mode, we would have.

The R2008SB receiver operates on FHSS mode when an FHSS transmitter is present, and S-FHSS mode when an S-FHSS transmitter is present. It does not "care" which servos you use. However, you MUST use S-Bus servos on the S-Bus, or an S-Bus decoder when you use other servos.

Again, we don't know where the idea came from that FHSS and SFHSS affected the servos.
Old 06-15-2012 | 12:13 PM
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Default RE: Servos for SFHSS

Thanks for clearing that up. I will fly tomorrow with confidence.
Old 06-18-2012 | 12:03 PM
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Default RE: Servos for SFHSS

ORIGINAL: Bax

This is being way over thought. You can use ANY regular servo, digital or analog with that receiver. When we say ''that receiver'', that means receiver. Mode is irrelevant. If we were going to mention a mode, we would have.

The R2008SB receiver operates on FHSS mode when an FHSS transmitter is present, and S-FHSS mode when an S-FHSS transmitter is present. It does not ''care'' which servos you use. However, you MUST use S-Bus servos on the S-Bus, or an S-Bus decoder when you use other servos.

Again, we don't know where the idea came from that FHSS and SFHSS affected the servos.
Where the thought came from is that S-FHSS is suppose to be high speed mode (I thought) and most sources say you cannot run analog servos in high speed mode - you have to use digital or you can burn up servos. Is S-FHSS high speed mode, and if it is ok to use all the time with all servos, then what is the FHSS setting used for.
Old 06-18-2012 | 01:12 PM
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Default RE: Servos for SFHSS

There is no high-speed mode in SFHSS air systems. Only the 4PL car system. The airplane systems can use any servo you desire to plug into them.
Old 06-18-2012 | 03:09 PM
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Default RE: Servos for SFHSS


ORIGINAL: Bax

There is no high-speed mode in SFHSS air systems. Only the 4PL car system. The airplane systems can use any servo you desire to plug into them.
Then what is the difference in S-FHSS and FHSS.
Old 06-19-2012 | 06:01 AM
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Default RE: Servos for SFHSS

Futaba hasn't told us, but likely it's because FHSS was originally for low-channel car systems, and they decided to come out with the lower-cost airplane systems, and needed a protocol to handle 6-8 channels.

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