Spektrum DSMX

Discussion on the reviews of 2.4GHz radios, modules and receivers that have appeared on RCModelReviews..com

Re: Spektrum DSMX

Postby Asad » Mon Dec 12, 2011 9:53 am

Bruce, any plan to open up the radios/modules and tell us readers which RF chipset is being used? And perhaps, any amplifiers in use too?
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Re: Spektrum DSMX

Postby ergocentric » Mon Dec 12, 2011 2:13 pm

Juanlargo wrote:Actually the range should not be impacted... the DSMX system should have better range than the older static system.


Well, he didn't proof read it,
opposing statements on range,
referring to DSM2 as static even though it uses more than one frequency,
not reality checking the math

sin(x/x) would be sin(1) or a constant 0.8415
sin(x)/x is a small number

edit: I think he is refering to Pseudo Noise transmission, see data sheet, single chip output to 4dBm, internal LNA on the receiver side.
Last edited by ergocentric on Mon Dec 12, 2011 2:50 pm, edited 2 times in total.
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Re: Spektrum DSMX

Postby ergocentric » Mon Dec 12, 2011 2:23 pm

Asad wrote:Bruce, any plan to open up the radios/modules and tell us readers which RF chipset is being used? And perhaps, any amplifiers in use too?


I would hazard to guess it's the same chipset (or the next generation) with a new algorithm programmed in to the MPU/CPLD/FPGA since it is downward compatible

edit: google and two minutes: CYRF6936 transceiver
http://www.cypress.com/?rID=14284

The CYRF6936 WirelessUSB™ LP radio is a second generation member of the Cypress WirelessUSB Radio System-On-Chip (SoC) family. The CYRF6936 is interoperable with the first generation CYWUSB69xx devices. The CYRF6936 IC adds a range of enhanced features, including increased operating voltage range, reduced supply current in all operating modes, higher data rate options, reduced crystal start up, synthesizer settling, and link turnaround times.
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Re: Spektrum DSMX

Postby ergocentric » Mon Dec 12, 2011 2:56 pm

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Re: Spektrum DSMX

Postby Wrend » Thu Dec 22, 2011 12:35 am

This is my first post on this forum, though I've been following it and the main RCMR site occasionally for a while. I'm an active member of the big RC forum most of you are probably familiar with and you may know me from there.

Anyway, just wanted to comment that the terms FHSS and DSSS seem to be tossed around rather loosely in the article and here. Futaba's FASST system was listed as being a FHSS system when in reality it (like DSMX) is a "hopping" DSSS transmission. (Feel free to look up any of the FASST transmitter FCC IDs.) Each FASST DSSS transmission is actually spread about twice as wide (in frequency range) as each DSM, DSM2, and presumably DSMX (since it apparently uses the same channel allotments of the available band as DSM and DSM2) DSSS transmission.

Some of you are most likely aware of these terminology discrepancies and just use the terms FHSS and DSSS out of convenience, but I think this adds to the confusion and misinformation those that don't know better have.
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Re: Spektrum DSMX

Postby RyanNX211 » Thu Feb 16, 2012 2:21 am

I'm pleased to report on our experience with Spektrum.
http://www.thebuildingboard.com/2012/02 ... -good.html
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Re: Spektrum DSMX

Postby RCModelReviews » Thu Feb 16, 2012 6:01 am

I wish Horizon/Spektrum had been a little more "up front" about the issues surrounding the AR500 receiver.
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Re: Spektrum DSMX

Postby RyanNX211 » Wed Oct 03, 2012 1:34 pm

I'm not sure things have improved with the AR600.

We had two more lockouts. http://www.thebuildingboard.com/2012/10 ... -line.html
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Re: Spektrum DSMX

Postby ergocentric » Sat Oct 06, 2012 3:29 pm

RyanNX211 wrote:I'm not sure things have improved with the AR600.

We had two more lockouts. http://www.thebuildingboard.com/2012/10 ... -line.html


Does anyone else find vague statements with a link to increase traffic a bit annoying?

website is word stuffed too, let me fix that for you I will cuntpaste the wordstuffing here: (size=1)

1/2A 1/2A Texaco 1936 Model Aircraft National Championship 1937 R/C Champion 1937 R/C Champion Stick 1938 yearbook 1976 SAM Champs 2 brothers hobby 2.4 gHZ 4 Stroke diesel a size westerner A texaco a.j. phillips abc aerial photography Aero Tech ign-sw aerodynamics aeromodeller aesop airfoiler airtronics Albatross albin bambi aldrich ama gas AMA Museum ami anderson pylon andrew latowski antique model aeroplane apc propeller arf artf ascender Australia auto giro auto gyro aviation modeller international B and W model hobbies b-2 bomber baby bee back and forth model baker balsa props bantam 14 Bartelt ben buckle Ben Shereshaw bending longerons Berkeley bernie gross Bill Effinger bill taylor bob aberle Bob Beecroft Bob Erpelding bob holman Bob Langelius bob lee bob morris bobtail contender boddo mills twin boehle giant boll aero borysko Bowling Green campus brigadier british pathe broggini brooklyn dodger Brooklyn Skyscapers Brown Junior bruschi brushless Buccaneer Buccaneer B Special Bucky Bucky Walter bud romak bugaboo Bunch Scorpion Buzzard Bombshell buzzard bombshell II cabin playboy cabin stick california champ camera plane canard canard addict canard glider Carl Goldberg carl goldberg model carrol allen carved propeller casano stick center of gravity Center of Lateral Area center of pressure cesare de robertis chaplaskie Charles Hampson Grant checkerboard tissue Chester Lanzo Chet Lanzo civy boy class c cleveland cloudster cleveland models Cliff Riedel cloud elf Cloud Hopper cloudster 900 cobra colors comet clipper comet sailplane contender control line corsair covering coverite cox .010 cox .049 cox motor crash cast croatia Cumulus curtiss condor cyclone czech dallaire danny sheelds dave acton dave hipperson dave platt david harding debolt debolt esquire delta band saw delta wing dethermalizer dick korda diesel diesel fuel without ether diesel model aeroplane diesel model aeroplane engine dieselrc.com donald broggini Dragonfly dsm2 dsmx Dublin duca duchessa duke horn duration duration times dx5e Eagle Squadron ed beshar ed konefes ehling contest gas model Eiffel 400 eire electric engines england enya diesel enya needle valve epoxy Ernie Linn erpelding Eut Tileston f1c FAC FAI fat airplane finishing fire fleetster flying aces stick flying models magazine flying octagon flying stab flying wing foote westerner Forster 99 four cycle model airplane engine Fox .35 Fox 35 Foxacoy francis x. ryan frank zaic franny brodigan Fred Mulholland free flight free flight model free-flight models fuel proofing galahad garami Gene Wallock George A. 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