Here’s my 2 month review
I would not recommend this for a racing application
the functionality of the receiver (arx one) is fine and it works great but I had two issues.
the slots are too loose for the plugs and I had a servo come unplugged. I ran a zip tie through the wires to avoid this happening again.
the second issue was a brown out issue where it lost signal. Then you could like tap the receiver and the car would do all kinds of weird things. This cost me a bump up in one of the mains.

these now cost a decent amount from Amazon so the savings isn’t worth the downtime.

just figured I’d share my experience.

Picked up a 471 clone today for $32 shipped off ebay called DasMikros Sanwa FHT3/FHT4. It did not work in FHT4 but did in FHT3. I do not use telemetry, so no big deal for me. I found out if you do not use a Sanwa ESC, you do not use the 1st channel for power(the second slot,) but the 3rd channel, and 4 for the servo. Just follow how I wired it up. I also range tested it down the street and no issue at all. This is an excellent buy, and they ship fast as well from California.

That's a 481 clone. 471 has an antenna. The second slot is where the esc plug usually goes, first slot is the servo. Your wiring looks normal I don't see anything different. FH3 is pretty behind in terms of radio tech... Might be an issue if racing competitively

We have a Whole thread dedicated to that...

EDIT a mod merged them for us. thanks.

I use these DasMikros 481 clones. I have had zero problems binding them to my M17 using FH4T. My wife and son also both use them with their M17's and have no problem getting them to bind to FH4T.

Why have the best radio on the market and not use it to it’s potential on FH5U?

Because no telemetry or SSL mode with FH5U I believe.

Sorry son it still running an MT44

Funding 3 racers whom each race in multiple classes in the offroad, onroad, carpet, crawling, pulling, drift, drag racing scenes. Yes we could have spent less per radio but receivers don't get cheaper unless you go with a knockoff when you need as many as we do. Family teams is not a cheap adventure. So is you want to figure it out I guess I could have saved a little more going with a radio with less features and still going with the knockoff receivers but the bottom line is that the true cost of a tx/rx system is hidden in the cost of the receivers and not the radio. Maybe its different if you are only funding yourself with only a couple vehicles but that's not my situation. We do have a few FH5U receivers but frankly at my families skill level it does not make a difference. I would rather use the antennaless for the space savings and not having to worry about inspecting the antennas on all our rigs.

m17 x 3 @ $572 = $1716
knockoff 481 receivers x 60 (20 each person) @ $30 = $1800
Total = $3,516

mx-s x 3 @ $249 = $747
sanwa 481 receivers x 60 (20 each per person @ $99 = $5940
Total = $6,687

there's like seven servos capable of running on sxr or sur and one esc capable of ssr. If you dont have a servo capable of running these modes why bother, your not going to notice a big diff from running SHR on 4 or 5 protocol. I could see the reasoning behind getting a cheaper rx i run 471 clones in my electrics and save my 491s for my nitros where i have the servos to take advantage of the faster protocols.not that i need a faster or more responsive servo in nitro buggy.

I can tell you why I run one, I am using a buggy B5M, that may not be raced, so why bother with the expensive version. This is a very good unit, and I will be getting more in the future.

You have 20 different cars that are actively used per family member?

At least 10 each get ran weekly. Others are once a month or so. Depends on the time of year and all. This has become a full time job to keep them all going. Also in the process of building a 100'x60' offroad track so we will no longer be limited on practice time. If it wasn't for these budget friendly receivers I would still be stuck trying to keep track of what transmitter goes to what. Life is much less stressful now.

The Hobbystar antenna-less is on sale for $39.99 this week at rcjuice .

Reporting in on the DasMikro units:
Good value, especially if you buy 2 at the same time there's a discount at raceVTA.

I haven't noticed any performance or range problems where I race, which is a medium sized outdoor on-road track.

The only downsides are the lack of any labels or instructions, and the case is a fair bit weaker than original.
The bottom actually separated on mine while trying to pull it out of double-sided tape, but it clicked back in (for now).

All in all, I'll continue to use it for secondary or basher cars.
There's value (to me) in having telemetry to read ESC data for racing

I have the dasmicro. No issues. Although I now just leave it plugged in my computer for vrcpro.

In the UK we have clones by SMD. Build quality is on par with sanwa and they are half the price.

​​​​​​