KO Esprit 4 Issues???

[Adam F]

Ok, so I have a really odd problem with my KO 4/413 receiver.....

I use it in my KF2 indoor without any issues weekly. (413 receiver, Sky RC speedo, TP motor, expert servo and MRT PT)

But when I ran it in my Tekno EB48, (411 receiver, HW Speedo, Tekin Motor, Savox servo, MRT PT) it's range was really poor, (Like 5 meters)

So I:

Swapped the receiver for another 411 that I know works fine - still the same
Fitted a brand new Tekin Speedo/motor - still the same
Tried the 413 receiver from my KF2 with the new speedo/motor - still the same
Disconnected the PR with all the new stuff fitted - still the same!!

I've now dropped in my old Universe 3 with a 409 receiver and its fine, so I have no idea whats going on... I have ruled out pretty much everything except the servo, but can't see how that would effect only one transmitter/receiver....

Any idea's?

[mark christopher]

Read the q and a on ko site and you will find one where it says the 411 is not recommended for off road and large tracks due to poor range

[Big paul]

Is the white inner wire exposed. If it has snapped off this can course range issue's. It needs 15 to 20mm at the end. that go's for all coax ariels.

[Allan1875]

I've had some range issues outdoors also, had to bring my aerial further out the shell which is a bit annoying.

[Xracer]

The Esprit IV instructions are very explicit, the receiver should be elevated from the chassis, especially if it is carbon fibre, the antenna should not contact the chassis, despite being a screened construction, be fully deployed vertically and positioned away from noise sources!

I must admit I was very surprised when I had my Esprit IV that the receiver should be so sensitive to installation and having believed that 2.4ghz were less prone to interference than the old 40 and 27mhz systems. I have never had any problems previously with Futaba 2.4ghz installations!

[Adam F]

Cheers for the feedback all...

Just for info, in the hope I just have a bad tranny and this isn't a case of "they are all like that"

Mark: The range on the 413 is no better than the 411, when just 10 meters away both loose contact.

Paul: The coax is perfect, its basically brand new and I'm pretty careful not to snag them or even go round tight corners.

Allan: Its as far as it can come out of the shell on the 413

Xracer: Its on a steel chassis car, housed within a plastic case and the aerial is full extended vertically.

I ran my old Uni3/409 today outdoor's and had no issues at all, so at a bit of a loss why the new model would perform worse?

[mark christopher]

Double post