Help needed(Accoms 2.4ghz)
 

Good day all

i need some help pleese. i bought an accoms 2.4 about 6 months ago after my spektrum DX2 failed Continuously.

i also bought 2 extra recievers for all my race cars.
in practice a week or so ago i found that my superstock car was loosing signal when it was at the furtherest point on the track,yesterday at the race meeting i only ran 2 classes and took the third reciever from my third car with to the race as a backup.in morning testing the above happend to both cars and i then did a re-bind on both cars and replaced the batteries in the radio.
After doing the re-bind i had no more issues with the super stock car but my mod car ran away in the second qualifier taking out the leader and breaking both cars.

Can anyone help in this regard?

Tamiya Cup series

Superstock car. Tamiya TA 05 IFS R, BZ Motor, Volac esc(KO)

Mod car. TRF 415 MSX Marc rhienard. 14t brushed motor, Volac esc

I run this transmitter also and my range testing showed 150m+ to be fine in open areas. However I had a drop out during a weekend bash session at about 80m. The area was humped so I could only just see the car from eye-level. I re-ran the area at a slow pace and I had no issues.

Reading your post and having experienced the issue in the weekend I did a little testing, positioning the transmitter at my usual hand held "angle" with the aerial in it's default upright position. I put in in one side of the house and tested the the receiver lock by taking the car through several rooms out into the garden and down some steps etc (about 50m total). I then adjusted the transmitter aerial to a more upright position using the adjustments it has and redid the test.

The results of my test was that having the aerial in an upright position made a big difference to performance in challenging conditions (drop out count 1 vs 7).

In this testing the receiver seemed to re-gain it's lock quickly but I did have some different issues with another car I run. In this circumstance the receiver would sometimes power reset on full throttle taking 3 or 4 seconds to re-lock. I tracked it down to the combo of a poor ESC bec circuit and a low capacity battery. A cap plugged into the receiver overcame this issue. I don't need the cap on my main car which has a better ESC.

Hope this helps.

Thanx for the input.

The strange thing however is that both my cars run the same esc(Volac. KO Propo) and both carsuse the same type of receiver.
My super stock car has the antena inside the car and the mod car(the one that lost signal) has the antena upright and thru the body.:nod:

i will however try with some caps. any suggestion on the cap rating?

Knowing the quality of that ESC I'm not sure that it is causing your problem with the Acoms receiver. The cap I am running with my low end ESC is a 4700uf 10v rating, which seems quite bulky.

The theory I had re the transmitter aerial was due to how I hold the transmitter during use, as the aerial is practically pointing at the car which as I understand it is not good (at least that is what my wifi engineers tell me). By using the rotation feature of the aerial and it's multiple folding positions I was able to get the aerial into a near vertical position when the transmitter is in my "in use" position. The difference between the two aerial positions was what I tested last night and the it showed a marked difference.

I have also tested running the aerial inside the body and while I could get reasonable range it wasn't reliable during direction changes.

Best of luck.

David.

Thanx again

i will have to experiment with a cap and antena possitions, hopefully this resolves my issues