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Old 10-18-2011, 07:46 PM   #1
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Default Cheaper rx for fasst system

I was looking to pick up a couple more rxs i use the 3pmx radio and it would be really nice to have a couple more. I see that hobbyking sells knock offs that ppl say work but they all seem like 7 or 8 channel ones. Wasnt sure if anyone had any luck finding some that work well in a 3 channel rx. Thanks guys
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Old 10-18-2011, 08:06 PM   #2
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I believe those Orange Rxs are for air use only.
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Old 10-18-2011, 09:51 PM   #3
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There was a 4 channel one that i wasnt sure about wasnt much info on it. So im not sure if there is something out there or not.

here it is HobbyKing R/C Hobby Store : FrSky TFR4 4ch 2.4Ghz Surface/Air Receiver FASST Compatible says both but looks real cheap LOL but im not sure might be worth a shot i guess
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Old 10-19-2011, 07:09 AM   #4
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Oh yeah, I see now. That looks different than their previous models. It does say for the 4PK and 4PKS, so it should work. However, there are quite a few details in their description that appear to be wrong....

Give it a shot and let us know how it works!
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Old 10-28-2011, 03:39 PM   #5
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Well, I was needing to place an order from HK, so I picked up one of these to test it out and it will work with the 4PK. You just need to change your radio to FASST-C1 mode (as the instructions with the Rx specify).

Anyway, I thought I'd post my findings. I plan to order a few more.
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Old 10-28-2011, 06:26 PM   #6
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Earlier, I setup this Rx with my 4PK and everything seems to be working perfectly.

I snapped a few pics....some while I was folding the two antenna into the Rx (a bit more difficult than just one) and some comparing it to a 4PL Rx.

Decased, the board looks like this:


The antenna swivel on their posts...so just turn them 180*:


Coil them up and insert into the case.





Blurry pictures....dammit, the kid must have been playing with the camera again!
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Old 10-28-2011, 09:33 PM   #7
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if you coil them up like that do you loose distance???
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Old 10-28-2011, 09:48 PM   #8
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did you coil the antenna inside the futaba rx too? also curious on range...

edit: just realized you are using the R2104GF RX. im using a 4PL which came with the same RX. does that mean the FrSky RX will work with the 4PL?

Last edited by asian195; 10-28-2011 at 09:52 PM.
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Old 10-29-2011, 05:37 AM   #9
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Quote:
Originally Posted by squatch71 View Post
if you coil them up like that do you lose distance???
Yes you do, but in crawling you are so close it's not an issue. If you were doing other forms of RC it could be an issue.
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Old 10-29-2011, 05:51 AM   #10
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Yeah, like Charlie said, I am sure there is some loss......but none that I have ever noticed....

And no, the FrSky receiver is ONLY for the FASST systems. That receiver is just what I pulled out of the truck in which the FrSky was going. I do not have any Futaba receivers for the 4PK.
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Old 10-29-2011, 01:08 PM   #11
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Quote:
Originally Posted by Charlie-III View Post
Yes you do, but in crawling you are so close it's not an issue. If you were doing other forms of RC it could be an issue.
we tail ride...some times we are 100 feet away seeing if we can out do each other with out being right there. you should try it...pretty hard when you have good drivers to go against.
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Old 10-29-2011, 04:04 PM   #12
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Quote:
Originally Posted by squatch71 View Post
we tail ride...some times we are 100 feet away seeing if we can out do each other with out being right there. you should try it...pretty hard when you have good drivers to go against.
A 100' is still likely not an issue with a coiled antenna.
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Old 10-30-2011, 12:39 PM   #13
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Squatch, I know this test isn't quantative, but I was up here at work and had my XR (with the Rx pictured above installed), so I went out to the parking lot in my building and drove it as far as possible while still being able to control the vehicle. The car got far enough away that I could barely see it and certainly couldn't distinguish details about it's driving.

Here are two pics.....I put a red dot above the car so you can see it (sorry that the pics are dark, some of our parking is covered):


Last edited by JeremyH; 10-30-2011 at 12:43 PM.
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Old 10-30-2011, 01:08 PM   #14
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So assho...I mean Mr. H....whats the verdict? Thumbs up or thumbs down. At $30, they would be a good deal, particularly in a basher that might see some water.
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Old 10-30-2011, 01:11 PM   #15
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Well, I ordered a few more....

As for water, just like any other Rx, I'd waterproof these things.
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Old 10-31-2011, 01:39 AM   #16
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Quote:
Originally Posted by JeremyH View Post
Yeah, like Charlie said, I am sure there is some loss......but none that I have ever noticed....

And no, the FrSky receiver is ONLY for the FASST systems. That receiver is just what I pulled out of the truck in which the FrSky was going. I do not have any Futaba receivers for the 4PK.
so they would work with the 3pm-x also, correct?
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Old 10-31-2011, 06:40 AM   #17
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Originally Posted by R/CMaxximus5.0 View Post
so they would work with the 3pm-x also, correct?
I am not sure...I have no experience with that model. Does that radio run off of FASST and have the ability to switch to C1 mode? If so, then I cant see why not...
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Old 11-03-2011, 08:16 PM   #18
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I can tell you it does run off FASST but not sure about the C1 mode. The 3PM-X manual sucks.
Quote:
Originally Posted by JeremyH View Post
I am not sure...I have no experience with that model. Does that radio run off of FASST and have the ability to switch to C1 mode? If so, then I cant see why not...
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Old 11-04-2011, 07:10 AM   #19
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Quote:
Originally Posted by JeremyH View Post
Well, I was needing to place an order from HK, so I picked up one of these to test it out and it will work with the 4PK. You just need to change your radio to FASST-C1 mode (as the instructions with the Rx specify).

Anyway, I thought I'd post my findings. I plan to order a few more.
Nice. Thanks for sharing.
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Old 11-05-2011, 08:28 AM   #20
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Quote:
Originally Posted by RivBlueNoma View Post
I can tell you it does run off FASST but not sure about the C1 mode. The 3PM-X manual sucks.
+1.....I've looked all over to find this info (I run a 3PM-x), the Futaba site doesn't give the info out and I have found conflicting info from threads on various forums.
Maybe Harley can chime in.....
Otherwise buying one of these RX's and trying is the only way to know.
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