Spektrum bind port question

[captainlip]

I've just fitted a sr3500 micro rx with a Savox 1258tg servo and the servo draws so much power from the rx it shuts down after three turns.

I have throttle, steering auxiliary and bind ports

Obviously I'm going to need a power cap, but can I put the spektrum cap in the bind port and the transponder in the auxiliary port?

Or will I need to put the PT in the bind and cap in the auxiliary port?

Thanks

[Jamie.T]

You can fit the P.T or power cap in any port, the live and negative rails are joined across all 4 channels so it makes no difference.

However, if your receiver is shutting down by turning the servo 3 times under no-load, a power cap wont fix it, sounds like the servo is the issue.

This happened with a guy at our club, and once he changed the servo, the problems went away. We fitted a large powercap, and it made it slightly better, but didnt fix the issue until the servo was replaced.

[captainlip]

I've always thought this was the issue, it even happened with my sr3300t rx

So what's the problem as the servo it rated at 6v but is also digital coreless... If that's what's making it draw to much power

What similar performance servos are available that don't draw a similar amount of current from the rx

[sosidge]

The Savox servos draw a lot of power.

Futaba BLS series is the way to go.

[captainlip]

Why do you suggest futaba over all the rest?

[ian h]

I'm running savox 1258tg in both my cat and cougar with sr3500 receivers with no problems at all. No power caps fitted either. Also running SP gt2 pro esc's with Orion 90c cells if they make a difference.