SKU: 15830129176

ImmersionRC LapRF 8-Way Personal Race Timing System

Sale price$361.35 Regular price$401.50
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Description

ImmersionRC LapRF 8-Way Personal Race Timing SystemAlso known as LapRF V2. Best in class RF Race Timing System for races with 1 to 8 pilots. Nothing else on the market compares with this, period. The passing of a quad through the start finish gate is precisely measured using the energy emitted by the 5. 8GHz video transmitter on the quad, no external hardware required. Check out all our Lap Timing and Race Gates Collection and the rest of our ImmersionRC Products! What's new ? PoE Interface The 8 Way

Also known as LapRF V2. Best-in-class RF Race Timing System for races with 1 to 8 pilots. Nothing else on the market compares with this, period. 

The passing of a quad through the start/finish gate is precisely measured using the energy emitted by the 5.8GHz video transmitter on the quad, no external hardware required.

Check out all our Lap Timing and Race Gates Collection and the rest of our ImmersionRC Products!

What's new ?

PoE Interface 

The 8-Way Event timing system includes an Ethernet port to allow direct cabling of the timing system into race management systems. V2 supports Power over Ethernet (PoE) 802.3at for simplified setup and reduced wiring. 1 Cable is all you'll need !

GPS Integration

Built-in GPS module provides an accurate real-time clock reference, enabling automatic time correction after a power loss, minimizing disruptions during events. Additionally, it will make split-time synchronization easier than ever, delivering perfect timing accuracy across all checkpoints. 

While this feature is not yet available in the current firmware, it is coming very soon.

Original LapRF excellence :

Race Proven, Expert Approved 

Race Proven at the 2017 MultiGP International Open, with 5 of the 8 tracks running the LapRF 8-Way. 

Race Proven at the 2017 MultiGP USA Championships, with two LapRF 8 -Ways running split times. 

Evaluated for over 6 months by none other than Joe Scully, the best race commentator in the business, and used for the vast majority of his events. Joe’s feedback was instrumental in ensuring that this timing system meets the needs of FPV race organizers. 

(And of course, IP67 waterproof, passively cooled, with no fans to suck in stray vegetation, commonly found at FPV race courses) 

No Transponders! 

The LapRF uses the Radio Frequency energy emitted by the Video Transmitter on the model to detect its presence within the race gate. 

The current generation of racing drones have two things in common - they all use 5.8GHz video downlinks, and they all need to be on different channels to race together. This is all that the LapRF system needs to precisely time events. 

No RFID transponders, no Infra-Red transponders, no complex installations. Just place the LapRF system in the start/finish gate, and start racing!

Analog AND Digital Compatible 

Well aware that HDzero is a rapidly growing system within the racing community, the LapRF is just as comfortable in the digital world as analog. Many successful mixed Analog and Digital races have been run with a great deal of success in the past few years.

Custom Timing Receivers 

Instead of using a standard receiver module in the timing system, ImmersionRC’s hardware engineering team designed a custom module, which can be calibrated on-the-fly to adapt to the different power levels found in races. 

Sensitive enough to detect passing quads, but selective enough to ignore adjacent channel interference. Heavily filtered to ignore off-band interference common at race events. 

To top it all off, we designed custom antennas with gate-shaped beams which let you precisely define the detection area of the timing system (something that competitive units sorely lack). These antennas are designed for RHCP/LHCP, and Linear polarization, covering everything that will be seen at a race event. 

LiveTime Integration 

The ImmersionRC LapRF Race Timing Systems are both supported by the industry-leading LiveTime Scoring Engine. 

Full integration of the personal system via USB, or the event system via Ethernet, including full auto-calibration of the timing system, and even a built in Spectrum Analyzer to analyze event background noise. 

Fully Waterproof 

As anyone in the Drone Racing business can attest, the weather at outdoor racing events can be a little unpredictable. To allow races to run after a shower, and to protect expensive electronics from being fully immersed in water, the LapRF 8 is fully waterproof. 

No fans, no moving parts, 1kg of beautiful anodized aluminum which doubles as a heat-sink.

PRODUCT SPECIFICATIONS 

  • UPC: 840630182161 
  • Width: 31.5CM 
  • Length: 26 CM 
  • Height: 9 CM 
  • Weight: 1.59KG 
  • Channels: All common (+ some rare) Analog + Digital 5.8GHz 
  • Antenna: Custom RHCP/LHCP/Linear 
  • Pilots: 1 to 8 with maximum precision, up to 16 with 1/2 precision. 
  • Ethernet: RJ-45 Male, on flying lead 
  • Power Over Ethernet (PoE) 802.3at
  • User Interface: Integrated OLED with button UI. Set IP address easily! 
  • Ports: Ethernet, Wired USB (Internal) 
  • PC Software:  Livetime FPV  
  • License:  Lifetime

DOCUMENTATION

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 15830129176

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4.9 ★★★★★
Based on 29 reviews
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J
Verified Purchase
J.H.K.
Chelsea, US
★★★★★ 5
Great features and impressive quality for the price!
Style: R-S202BL, Configuration: receiver only
Got this for my classroom. Not an audiophile by any means and certainly didn't need the latest greatest features (along with accompanying higher cost). For what I paid, $150 on Amazon before sales tax, I'm very impressed with what it offers and can do. Installed it in my classroom today. Connected it to a pair of old Sony bookshelf speakers which I got around 10 years ago. Specifically got this receiver because the old Onkyo I previously used (still working even though it must be from 1980s or 1990s) was unable to handle audio input from my classroom desktop computer even though I had gotten an adapter cable that had a 3.5mm jack on one end and two RCA (red/white) plugs on the other end. Wanted to use the bookshelf speakers instead of the weak external speakers provided by school for whenever I would need audio during a lesson, video clips, etc. to be heard by students at the back of the classroom. After setting up this receiver and putting it through its paces, I am pleased with its overall performance. I connected my classroom's desktop computer to the receiver using that adapter cable previously mentioned and this receiver had no problems at all picking up the signal and transmitting it to my bookshelf speakers. Tried out the radio tuner and was pleasantly surprised by both how clear the sound quality is for many local stations (compared to the Onkyo I had previously been using) and for even decoding signals from distant stations (I'm using a spare cheap external FM radio antenna, not the wire antenna provided with this unit) which the previous Onkyo receiver (and even my car radio) can't pick up clearly if at all. The Bluetooth feature is nice. There's a cheaper version of this receiver without the Bluetooth feature but I decided that the extra $20 was worth it for providing additional possibilities. Had no problem pairing this receiver with my Nexus 6 smartphone. No problems streaming music from my smartphone to the receiver. So far, I've only encountered one problem. I thought about docking one star off for this problem but in the end decided not to do so because the overall functionality and performance of the receiver isn't significantly impaired by this issue. When I first powered up this receiver (after making all the necessary audio connections to speakers and computer), I thought I might have had a defective unit because I couldn't hear anything even though the volume was clearly set at 40 (out of a 0-99 scale). After some trial and error, what I discovered was that any setting below 45 is practically impossible to hear coming out of my speakers. Once I cranked up the volume to 50-55, sound was clearly discernible to anyone near the speakers. From 55-65, sound fills up my entire classroom nicely. From 65-75, it gets loud in my classroom and when I walked out into the hallway (and then continued walking down the hallway) I could hear the sound clearly from several classrooms away. I can only imagine how loud it might be (and how far the sound may travel) if I cranked up the volume beyond 75. So, for all intents and practical purposes, the sound on this unit works but I'm essentially navigating between 45 (quiet) and 80 (really loud) instead of the full range of 0-99. Like I said, functionality and performance doesn't seem to be impaired by this discrepancy, so I ultimately decided not to knock off a star. Not sure if this issue is particular to the specific unit I received or a recurring pattern in more units beyond mine. Not a deal-breaker and not worth going through the hassle of a merchandise exchange since it gets the job done. Looking forward to seeing how well this unit works out for this coming school year (and hopefully for many years beyond). If anything should arise to warrant editing this review, then I'll update as needed.
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Reviewed in the United States on August 6, 2016
A
Verified Purchase
Amazon Customer
Pawtucket, US
★★★★★ 5
200 Watts… More Like *2000 Watts!
Style: R-S202BL, Configuration: receiver only
This system is really nice and I mean it! Not a lot of information on this unit but what I can say is this system gets extremely loud to the point where you can lose your hearing from it. There is no distortion from this system even at max volume. I like music loud but this loud is on the next level and this is coming from a guy who has a lot of audio equipment and experience in the audio and FM broadcast industry! The nice thing is FM sounds wonderful on this unit. FM radio sensitivity is just wonderful like a high end receiver or like a good car FM radio. The wire provided to get radio reception wasn’t the best but a good tip is to put the wire next to the speaker wires to act like a ground plane but I highly recommend to get a good FM radio antenna that goes on your roof of your house for superior reception. AND no, the speaker wires don’t interfere with reception!!! I was skeptical due to the lack of information on this Yamaha, but I took that risk. I always knew Yamaha always been a very premium brand for audio and receivers but then you watch videos online about this unit they hate on it for being a cheap system when this isn’t true. This unit is for someone who wants a: Basic Semi Audiophile Stereo (Left and Right Sound) FM Radio, Line In or CD Playback, if you buy the cd reader separate. The video I provide is this stereo shaking my cheap old school 80s 8 inch bookshelf speakers. The only con is no sub out port. Irrelevant information starts here: The setup you see in the video is only temporary as we are remodeling the house and garage this stereo is currently in. Are new house is being currently being built in the country and after are new garage is built I’ll be putting this stereo in there and be setting this up with 2 outdoor Yamaha AW-350s on our back deck by the fire pit and the 2 old school 80s speakers in the garage. (Also a FM antenna mast for extreme FM radio reception.) The idea is the backyard would have good audio for music and are front yard would also get some good ported sound from the garage. Overall me and my family spends a lot of time outdoors no phones and little to no internet time just hanging out listening to music. The reason I am sharing this is because this is what I see a unit like this being used for.
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Reviewed in the United States on April 8, 2025
S
Verified Purchase
Strategos
West Palm Beach, US
★★★★★ 1
Weak, Flat, Tinny Sound
Style: R-S202BL, Configuration: receiver only
My Insignia NS-STR514 suddenly died after a year of glorious sound (device still turned on, switch inputs, etc, just no sound), and I had to find another stereo receiver to replace it. Yamaha seemed to be a pretty popular brand, especially among musicians and home theater enthusiasts, so I figured I couldn't go wrong. Wrong. From the minute I hooked this receiver up I noticed a significant drop in power, range, and overall quality. This device is advertised as having the same 100w of power per channel, so this is really surprising for a major brand. I used to have to turn the Insignia up to 20, but this device has to be turned up to 44 to get the same loudness. When you do get this device cranked up enough to hear something, the sound is very flat. There's no other way to describe it. There's no range. Even if bass cranked to max you can barely hear it. The treble is weak, flat, and distorts at high volume. This device is literally making my stereo speakers that cost $300.00 each sound like a boom box from the 90's. I was considering upgrading my turntable to a higher quality one, but now, what's the point? On the flip side, the sound is clean, crisp. But man oh man is it flat. These days I mostly listen to music on high grade headphones and watch movies and streaming on my projector so it's not a huge loss (high fidelity sound on video games and movies isn't a huge deal to me), but don't buy this for your entry-level audiophile needs. There's got to be better options out there than this. The weak bass especially is unforgivable. *Update 04/25/17* My wife finally grew so tired of this piece of junk that I got rid of it and bought another Insignia Stereo Receiver. Unreliable as it is (dead after 2 years) it's still better than this garbage. The bass response is absolutely horrible, and the neighbors started complaining about the "booming". That's pretty much the only bass you get from this device. A loud, cheap-sounding thumping. The frequency response of this device is so poor, and the sound so thin and tinny, that even my wife couldn't stand it! Do yourself a favor and avoid this one.
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Reviewed in the United States on February 15, 2017
J
Verified Purchase
James Jeffries
Los Angeles, US
★★★★★ 5
Excellent purchase
Style: R-S202BL, Configuration: receiver only
Good looking stereo and everything works perfectly, excellent reception and all the music is very clear at any volume (only went up to 55 out of 99).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
B
Verified Purchase
Brooke T
Charlottesville, US
★★★★★ 5
Great quality wire for any automotive or 12 volt wiring
Size: 16 AWG-100 ft
This GS Power 16 gauge wire is excellent quality for any automotive wiring project. The copper is true OFC pure copper, not copper clad aluminum. It’s flexible, easy to route, and holds up well without the insulation feeling cheap or brittle. I have used it for automotive accessory wiring and some 12V equipment projects and it handled everything perfectly. The wire pulls cleanly, solders well, and the insulation thickness gives it a durable feel without being overly bulky. If you need dependable wire for automotive, marine, RV, audio, or general electrical projects, this is a great buy. I would absolutely purchase it again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026

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