Wireless Dmx?

hi,
I'm personally wary of such offers from China, especially if you already write:

Quote

I guess I have been looking at it for a long time but I just don't know about all the other wireless out their in the Air & everybody else in the bands & everybody's using wireless & if causing interface problems!!!!!!!!!!!

Since most the China devices are more fault susceptible, I would prefer
something more professional. I bought the wireless DMX system of
Codem, and I am very satisfied with it.
However, the system has had its price.

Transceiver about 490 Euro
Receiver about 190 Euro

Regards Uwe

For me it's this question: I can use a 10 € DMX cable. I know it works perfectly and robust. Maybe I might have to climb up a ladder two or three times to set it up - but thats' all.
Why should I now switch to a $159.99 system I'm not familiar with, I have to set up, I don't know how it works, I don't know if it works reliably, I even can't tell it works during production if it ran during rehearsals?

I have only one use case I could think of considering a wireless solution: Having an actor wearing a DMX controllable costume. Look at other productions, even the Blue Man Group didn't do this wireless.

If you use a wireless microphone and it might fail, it doesn't have such an impact. If all your lighting fixtures fail, because one wireless connection from FOH to stage fails, it has an enormeous impact. So I would suggest: Don't do it, unless there are really good reasons to do so. If you do it: rely on leading manufactures. Your DMX line is one of the backbones in your production, so take care of it.

Stefan

Hi,
as I use mobile system it is inconvenient using cable to all devices.
I`ve bought from china:

http://www.ebay.com/itm/Wirele…mmers&hash=item2a32f46e8e

http://www.ebay.com/itm/DE-DMX…immer&hash=item3cd816e578

All devices look solid and work good. It was very easy to connect wireless receiver to this module:
http://www.hoelscher-hi.de/hendrik/english/dimmer.htm

Regards,
Darius

1 x Wireless DMX Transceiver(Transmitter & Receiver)

It means the device can transmit or receive the data, but only one function at the moment.
When device detects dmx signal connected to its input it become trasnmitter. If there is no
dmx signal connected the device is scanning for wireless signal.
I use this device as transmitter. In 25 m distance it works without any error. Longer distance I
didn`t try.
I was very incredulous about dmx wireless until tried. It is very convenient. There is possibility
to connect to receiver more than 1 dmx device.

Quote from musicsteve

Labaispauda Just bought a Bunch of them!! the price when way down, I like the bigger size for my Fixtures they worked so good I bought more!!! the price went down to around $32.00 wow

http://www.ebay.com/itm/2x-2-4…a51043:g:BVcAAOSwlV9WRa8K

sorry for the dredge, but there really doesn't seem to be a lot of chatter (that I can find) about the ins and outs of these. I bought some of these boards. wired a couple up and got tx rx happening nicely on the LED indication, but the lights don't pass the dmx.
I'm using cheapo chinese LED quad LED par64 that work perfectly via DMX cable, but when I use the small integrated boards, no dmx passes despite the LED indicating tx and rx being successful.
so then I tried the external wifi ones thinking maybe I'd wired the others wrong but same issue... rx tx indications are good to go, but the slave stays blank.. throw in a DMX cable and it works fine, replace back with the wireless ones.. nothing.

so then I tried the same on some moving head lights I have... and the wireless works here... wat?

is there some different type of DMX for different lights? they're booth standard 3 pin xlr style.. any help gratefully received. I'm way confused

Hi,
there is only one DMX specification. Devices, which implements it correct work perfect witch each other. But some cheap devices (e.g. chineese noname products) do not implement DMX correct. Those devices need a smaller DMX-datarate to work properly. So mixing cheap and normal devices could cause communication problems so the devices doesn't react.
regards
JP

Quote from JPK

Hi,
there is only one DMX specification. Devices, which implements it correct work perfect witch each other. But some cheap devices (e.g. chineese noname products) do not implement DMX correct. Those devices need a smaller DMX-datarate to work properly. So mixing cheap and normal devices could cause communication problems so the devices doesn't react.
regards
JP

thanks JP.. weird that both work fine with DMX cable, but when I use the wireless only the moving head ones work though?
what I mean is..
cheap puck to cheap puck via cable.. works
moving head to moving head via cable.. works
cheap puck to cheap puck wireless.. fails
moving head to moving head wireless... works

if there's a datarate issue, can I address that somehow?

hmmm only if you can edit the datarate and other parameters of your wireless modules, because they work on the receiving side as new sender and generate a new DMX signal (ofcorse with the data received on the wireless transmitter side). So you have two DMX lanes with the wireless nodes:

• DMX console => moving head => wireless transmitter
• wireless receiver => moving head

regards
JP

nope.. I don't have a console (as such).
I have a pair of moving heads.. set one as master (to sound, or strobe or chase or whatever). tx wireless from that goes to rx wireless on the next (moving head) set to A001 slave.
works perfectly.
replace the wireless with a cable.. works perfectly.

now puck set to sound active -> same cable -> puck set to A001.
works perfectly
puck ->same wireless tx rx units ->puck set to A001
fail

I kinda have a console (and have tried with it too and it also fails on wireless, succeeds on wired)
so my 'console' is actually one I made. I have little to no need of anything fancy, so I purchased 2x spare boards from these pucks.
one board is set to strobe, one to sound. the DMX out goes to a 3pdt stomp switch (and I have a sensitivity knob on it for the sound). during a gig our bassist can stomp to swap to strobe, or back to sound active by jumping on it. it's housed in a standard guitar style pedal

I even tried wiring in one of the cheap wireless boards for tx.. but when I couldn't get that working I tried the external type in case it was my wiring (didn't think it was, but wasn't sure).. seems to be the pucks are odd

Hi @rocklander
this looks like as a malfuntion between your Wireless DMX devices,

I use a Transceiver System build in a single XLR Plug. ( real plug and Play ) 24/7 never turned off ( ok somtimes ) no Problems on all Devices.
Some others are permanetly tranported and pluged in and pluged out ..on Live Gigs.

This parts are made in China, but they used a DMX Standart and are kompatible to all other ISM Band Devices with
2.4 to 2.525 GHz 126 Chanels Jump Frequency and 512 DMX Chanels in 7 FRequenz Groups Like 7 Universes
You should take a look at this tecnical Details , if they are all the same on any of your Wifi DMX DEvice, if they are work to together.

here my favorites:
The Manufactor is Haiking Technology Co. Ltd Alternate you can use the same by Lixada
Model HK-WDMX01A ( XLR male Version ) and Model HK-WDMX01B ( XLR female Version )

Thake a Look at this, it will be fix your Problem in Minutes, i think so.

Best Regards Uwe

thanks hothand.
I've had it explained to me now.
the issue is that some of the cheap chinese pucks have DMX in and out sockets on them (even has the term "DMX" written on them and in the
literature), but it is in fact a proprietary system. so the cables work sweet (copper is copper) but the wireless (send) fails because they are
designed to transmit 'true' dmx.. the wireless boards and the external ones are not able to xmit the proprietary protocol.
the pucks (I'm told) are able to receive DMX, but can't what they send if they're set to master is not true dmx.
sucks that they're (the pucks) being sold with misleading information, but at least I know and can stop chasing the dragon on the gear I have.