yeaklet4

iTrader: (34)

ok il wil try explain what im trying to ask. ok i need a rx for a 3pdf and i see hitec has one for it but it says it is 3 volt bec im running a novak c2 with is bec of 6 i belive. so the ? is by the rx only being 3 will that slow down the servo.

jgroenhof

iTrader: (3)

A little confused by the way you ask, but here goes.

If you look at the specs (torque/speed) for servos it almost always lists 4.8v and 6.0v. The 6.0v rating is faster, and offers more torque. So the answer is yes 3.0v will be slower. At 3.0v I wouldn't be suprised if it is jerky.

Not so sure what the 3pdf is. Why don't you post a link or two. We can look it over and see if your heading in the right direction.

yeaklet4

iTrader: (34)

ok the esc puts out 6 but the rx only puts out 3. so what would the servo be getting 3 or 6 the radio is a futaba 3pdf . the rx im looking at is a hitec hfs omm. so does a cheaper rx hurt performance on the servo.

jgroenhof

iTrader: (3)

Here are the spes on that Rx. The BEC is rated in amps. 3 amps is normal output. The operating voltage.4.8-6.0 is also normal.

HFS-03MM
Type 3 Channel FM Single Conversion
Operating Voltage 4.8 - 6.0 Volts
Current Drain 15 mA. +/- 0.15 mA
Max BEC Output 3 Amps

yeaklet4

iTrader: (34)

ok great so then my servo will not be slower because of that rx so as long as the esc is 6 volts out right thanks

sport10

That is not exactly how it works. The ESC has a BEC that produce usually around 6 volts and between 1 and 5 amps of current and this powers the reciever. If the reciever also has a BEC then it will cut the voltage again to the servos. Probably down to 4.8V so yea the servos will be slower.

yeaklet4

iTrader: (34)

so the servos work off the bec or the volts

jgroenhof

iTrader: (3)

Now I'm a little confused also. You could always go to the ask Hitec forum.
Sport10, don't the all have a BEC to some degree?

You guy's have a happy holiday.
John G

BTW, this is Futaba's definition of the BEC.
BEC (Battery Eliminator Circuitry)
Allows receiver to draw power from a main battery pack, eliminating the need for (and weight of) a receiver battery.

yeaklet4

iTrader: (34)

ya i think im with you jg i thought the bec was they for like. say for a nitro car i think if you ran that rx in a nitro then the servos would be slower beacuse of you haveing to use the bec but on elec esc that powers the rx right.