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Author Topic: My wireless DMX findings  (Read 446 times)

David Allred

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My wireless DMX findings
« on: April 20, 2019, 03:36:28 pm »

 While checking on the PCB style trans-ceiver units for a project, I decided to play with my dongles.
I have 2 Chinese dongle transmitters and 8 or so receiver dongles (button style).
This what I found. 
The transmitters (with antenna) also receive. 
The button style receivers will not transmit.
A fixture can receive dmx signal from Male or female side as long as a physical connection can be made, with a turn around (for example).
If a fixture has an input from a wireless source, a transmitter can't be used as a repeater on the output to other fixtures on the same wireless channel (color).
But, one can repeat if on a different channel (color).

Maybe that will help someone.
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Lyle Williams

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Re: My wireless DMX findings
« Reply #1 on: April 21, 2019, 10:54:34 am »

What are the button-style receivers?
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David Allred

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Re: My wireless DMX findings
« Reply #2 on: April 21, 2019, 02:37:57 pm »

What are the button-style receivers?

The kind without antennas.  (Round ends that light up.  Rounded like a button.)
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Steve Garris

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Re: My wireless DMX findings
« Reply #3 on: April 21, 2019, 03:45:36 pm »


If a fixture has an input from a wireless source, a transmitter can't be used as a repeater on the output to other fixtures on the same wireless channel (color).
But, one can repeat if on a different channel (color).



This is informative - didn't know!

I assume you are talking about these:
https://www.donnerdeal.com/products/bundel-donner-2-4g-dmx512-wireless-transmitter-receiver-built-battery?variant=8786569953369&utm_medium=cpc&utm_source=google&utm_campaign=Google%20Shopping&gclid=EAIaIQobChMI_72VzPjh4QIVXx-tBh3jHQdlEAQYAyABEgJedPD_BwE
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David Allred

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Re: My wireless DMX findings
« Reply #4 on: April 21, 2019, 09:05:08 pm »

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Lyle Williams

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Re: My wireless DMX findings
« Reply #5 on: April 22, 2019, 12:33:37 am »

The least fun thing about the transceivers is the ability of something you considered to be a receiver to become a transmitter.  Someone cycling through the fixtures settings can trigger this.
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Jason Fultz

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Re: My wireless DMX findings
« Reply #6 on: April 22, 2019, 09:30:51 am »

Correct.

The pcb types are either.  If they detect dmx they automatically transmit.  If they don't, they scan for a wireless signal.

So let me make sure I understand. The pub add on style  Transceivers are a transceiver, the both recieve and transmit dmx at the same time.
So adding these to some of my fixtures would create a wireless network of their own also.
I've been using the Lixada light up button type for a while now pretty successfully and like them.
But being able to add some of these to permanent installs would be cool.
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Rob Spence

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Re: My wireless DMX findings
« Reply #7 on: April 22, 2019, 07:59:06 pm »

So let me make sure I understand. The pub add on style  Transceivers are a transceiver, the both recieve and transmit dmx at the same time.
So adding these to some of my fixtures would create a wireless network of their own also.
I've been using the Lixada light up button type for a while now pretty successfully and like them.
But being able to add some of these to permanent installs would be cool.

No. They are either but not at same time.



Sent from my iPad using Tapatalk Pro
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rob at lynxaudioservices dot com

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David Allred

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Re: My wireless DMX findings
« Reply #8 on: April 23, 2019, 03:53:45 pm »

No. They are either but not at same time.



Sent from my iPad using Tapatalk Pro

Rob is correct.  But you could set up a "red channel" as level 1.  Red transmit to red receive on a fixture (or fixture) within range.  That same fixture, with a "Green" transmitter on the output, could transmit to a slew of Green receivers that were out of range of the red transmitter.  rinse and repeat.
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Lyle Williams

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Re: My wireless DMX findings
« Reply #9 on: April 24, 2019, 05:30:17 pm »

I am not sure that the output is properly differential RS485.  I suspect that they only apply signal to one pin.
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