Scherrer UHF Review & Torture Test

by StoneBlueAirlines | May 6, 2014 | (4) Posted in Reviews

In this video we will torture test Scherrers high end long range UHF flight control system. This video has been a four month labor of love. Alex and I worked in the cold, wind and rain doing our testing I mean torturing. We hope you all enjoy this video and it helps you in deciding on the right uhf system for your needs. All testing gear provided by Video Aerial Systems.

http://www.tslrs.com/

We were not paid for this review but were sent gear from Scherrer for testing and review.

Always a great time working with iBcrazy on these videos. More to come later this year as well as some long range flying.

The Hanger: Custom Apparel & Accessories for the FPV Pilot.
Website: http://www.stoneblueairlines.com/

Facebook: https://www.facebook.com/StoneBlueAirlines

Produced by: Jeremiah aka Bondjr.

Flight Crew:
Bondjr. :StoneBlueAirlines
iBcrazy: cagreve1231
Vango: Jasonglaze
Mashton
Sam

FPV Featured Vendors:
http://videoaerialsystems.com/
https://www.facebook.com/SweepwingsRC
http://hobbywireless.com/
http://www.securitycamera2000.com/
http://www.flytron.com/
http://www.fatshark.com/
http://www.tslrs.com/
http://www.getfpv.com/
http://ragecams.com/
http://www.fpvstyle.com/
http://www.besthobbymall.com/

FPV Cameras I recomend:
Sony CMQ1993X Day
Sony PZO420 Night & Day

HD Video Cameras:
808 #16 Keychain modded lens.
808 #16 V2 D Lens
Mobius HD Cam
GoPro3 Black Rage Cam Addition

Planes:
Specter EPP
Raven EPP
Spartan 48 EPP Wing
Sweep Wings Juggernaut 48"
Chimera 54" EPP Wing
Mini EPP Wing
Flight Test Nut Ball
Talon UAV

Multicopters:
DJI F450 KK2.0 V1.6
Titan Tri KK2.0 v1.6
QAV 250 CC3D

Radio: Futaba T7Cap 72mhz
Turnigy 9XR
Receiver: Coronal RP6D1 / RP8D1 72mhz
OpenLRS 433
Scherrer UHF

Ground Station:
Helical & Cross Hair Antenna
Blue Beam Set
1.3 Ghz Tx & Rx

FPV Goggles & Montor:
Vuzix Wrap 920 Goggles
Vuzix Wrap 1200
7" LCD BEV-OFM

DVR:
Hobby Wireless VR1500

Flying Wing Calculator
http://fwcg.3dzone.dk/

T- Copter Calculator
http://tinyurl.com/bn2zjs2

Free Flight Sim for PC.
http://www.rcdeskpilot.com

Music:
Royalty Free & Creative Commons
Creativecommons.org

Copyright StoneBlueAirlines 2014.

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COMMENTS

vk2icj on May 13, 2014
I appreciate the effort you guys put into your videos however I am concerned at the lack of methodology. Honesty in reviews is a good thing for the consumer. I applaud anyone who points out issues when testing products. However when you simulate real life conditions with attenuators, jammers, and removing antennas you risk inducing situations that would just not happen in real life or happen at all and you start to appear as if you were looking for problems and making them fore front in your review. Keep up the good work. I'd like to see the same test done to EZUHF and Dragonlink for comparison. You certainly gave the TSLRS a bashing. Here is TSLRS response.
http://youtu.be/C6ZygOeCwLU
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StoneBlueAirlines on May 13, 2014
Thanks for the comment. How would you simulate the testing that was done? Just wondering. We tried to keep it real and also not only test scherrer but also a few others. We are going to torture the others coming up so we are fair to all parties :) And the response i posted after i got there video directly from them :)
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vk2icj on May 15, 2014
First off thank you for your efforts. I can certainly appreciate the time put in to your reviews. You guys have become quite popular and have a large following. I am no engineer and no expert in RC so I follow people such as yourself for reviews on what I purchase and how I go about setting up my aircraft. When people such as yourselves transcend the average 25 view joe blow reviewer on the tube I think you take on the responsibility of removing as much bias as possible when presenting your tests. No doubt this review after watching it from my experience level would steer me away from purchasing a TSLRS. I don't know if that was your intention or not. In the next few months before you put out another video regarding another system there will be nothing to compare this video to and the predominant feeling I walked away from your video was not positive towards TSLRS. I disagree with your method of testing without antennas full stop. I am not real happy with the use of attenuators and then using maths to determine approximate results in the air. I would have been much happier to see a setup tied to a balloon, on top of a building, or top of a mountain and tethered to the ground at altitude whilst you drove to various measurable distances and reported your results with the gear wired and hooked up as designed. The voltage drop test which was the most concerning of the tests to me. Alex states that the TSLRS never recovers from a drop of volts to around 2.x volts even when the voltage in re increased. In the same breath he the states that he would rather stick with his old system even though it drops off at 4.volts because if the volts recover the rx comes back to life no worries. Alex states that because of this test he would not use this system as it is too dangerous as it is. One could equally and fairly state that if your supply volatge dipped to 3.x volts and remained there then Alex's current setup would not be able to function and he would have a brown pants moment where the unit using the TSLRS would still be flyable, Ok I pinched this next bit from the RCgroups but it hold a great deal of merit. Can you say you followed these rules for scientific testing?
1. Name and model/rev of all equipment used. TSLRS, CPPM source radio, VTx, VRx
2. Purpose? Yeah, what is the purpose of the experiment? What is your hypothesis or what are you trying to prove or disprove.
3. Set up of equipment (connections, temperature, pressure, voltage, current, RF output power, input current/voltage to Rx/VTx) Also, how do you know all the equipment is operating to manufacturers specs? Are there records to reference standards? Data?
4. How were the tests performed, exactly. For instance, instead of randomly waving an RF output around a VRx, measure the distance and antenna angle, be precise. Yeah I know it is a Circular VRx antenna but so what, measure. Try different antennas. Try different VRx.
5. If you are going for a valid test, then perform to manufacturers specified parameters. Document that result. At that point, you can quantitatively "torture" the device to see where the limits of stability and recovery lie.
6. Findings
7. Conclusions based on facts and data.
8. Possible further experiments based on findings.


Cheers
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StoneBlueAirlines on May 15, 2014
THanks for your thoughts. Check out this latest video https://www.youtube.com/watch?v=Q4V20e7PCg0 i think this one will answer how and why we tested the way we did. Most guys don't fly by a set of manufacture specs but rather by what the mass of pilots are doing. There is a standard your standard for how you fly and what works well. We are not saying set things up half baked but rather this system was testing much like we did our last LRS in the real world tested to specs we normally fly in. Watch the video its pretty good and we have not beef with Scherrer and wanted to see them do well they have issues much like Dragon link did or still might. New gear on the way for testing now.
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EvanVH on June 1, 2014
Great video. Lots of good info from well educated people. Thank you for doing all of that work. No LRS system for me yet but some day.

Evan
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StoneBlueAirlines on June 2, 2014
Thanks for the comment lots of work on this so glad people are getting something out of it.
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Scherrer UHF Review & Torture Test