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(Radio system) Absima CR4T+ initial review


Slugsie

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Today I received my new radio system, the Absima CR4T+. This is the updated version of the CR4T (there is no external labelling of the '+', but it is mentioned on the box), which is a clone of the FlySky FS-iT4, and Carson do a variant too I believe. I chose the Absima variant as to me it's by far the better looking one.

 

Here is my initial review - from a bashers perspective.

 

 

abs2000003.jpg

 

The main change in the CR4T+ over the older CR4T is that it can bind to multiple R4FS receivers (should also be compatible with the FlySky version - FS-iR4, I have one on order but not received yet), these are the 4 channel receivers with telemetry. The initial release of these radios could only bind to a single telemetry receiver at a time, which to me is a bit of a pain. This has now been fixed, but from reading around it's required a hardware change, so older models possibly won't get this fix. In addition to this it can also be set to bind with the FS-GR3C line of receivers from the FlySky GT3B/C line of transmitters of which I have several (I've seen mention that this might be a feature only the Absima has). The FS-iR4 receivers can be had for a little over

Edited by Slugsie
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Well, first lesson learned. I was testing out the telemetry sensors. Plugged the voltage sensor in, then plugged the leads into two points on the balance plug on the LIPO. Seconds later the sensor leads are red hot, and I'm desperately trying to remove them without burning myself badly - I failed. After a couple moments, as I was sucking on a very sore and burned finger I realised what I had done wrong. Because on this car (my Hyper 7) I regularly change between 3S and 5S I had decided to set the voltage alarms based on a 1S reading. I then plugged into the *last* cell on the battery instead of the *first*, which when I thought about it almost certainly resulted in a short circuit and a 3S 8400mah battery trying to discharge though roughly 24gauge wire. There is no explicit indication in the manual as to which points on the balance plug you should connect to, so that possibility hadn't occurred to me at first. A quick inspection of the sensor module showed that it was probably just the wires that had burned, everything else looked fine. Five minutes to solder in some new wires and it was working as it should do. :)

 

I've also tried the optical speed sensor, and I can't get it to work at all. It says that the sensor should be within 2mm of the surface - check, and there should be a mark (black on a white wheel it suggests) as wide as the sensor head - check. But nothing. I suspect that I have a dodgy sensor though. I have one of the magnetic sensors on order, we'll see if that's any better. Of course the real world usefulness of a speed sensor is questionable, especially in comparison to temperature and voltage which are genuinely useful.

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  • 3 weeks later...

The chap that introduced me to the CR4T !!!

Few issues

Included batteries are ok but I'm sure I'll be upgrading in the very near future

Associatedly is the battery life

But for me , mainly , was that there is no charging jack unless I've missed it ?

Yes I too would like to see some customiseable options

But

All told - I love the tx to bits , it's comfatable and easy to use

Brilliant bit of kit

And

A smashing review buddy

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