Radio & Wireless conflications?

JackCarver

JackCarver

JackCarver

Associate
Joined
19 Jul 2004
Posts
513
Hi all, im installing a radio sensor at a site tech spec below:-

Direct Interface to your chosen hardware/device
License-Free Frequency 434MHz, 869MHz & 915MHz
434/869MHz Pan-European, 915MHz North America
Flash Programmable
ERP 10mW
RS232, RS422* and RS485* Interface (*Optional: Available on Request)
SMA Antenna connector
On-board voltage regulators
Industrial Grade IP Rated enclosure

The customer is concerned this will interfear with his WIFI. I have explained they are different freq etc but he is having none of it.

here is so more blurb from the manufacture site...

Our compact Wireless RS232, RS422, RS485 Radio Sensing are ready-to-integrate and agency-certified around the world. Robust Radio-Link Modem technology ensures reliable wireless communication in industrial and commercial products, even in RF-dense areas.

Do we have any WIFI experts here? IYO would it conflict???
 
It wont conflict, wifi runs on 2.4ghz so a lot higher than what your using.

On a side note wifi uses a higher frequencies to transfer more data in a shorter ammount of time. So to answer your question, no conflict.
 
Last edited:
Spectrum assignments and operational limitations are not consistent worldwide. Most of Europe allows for an additional 2 channels beyond those permitted in the U.S. for the 2.4 GHz band. (1–13 vs. 1–11); Japan has one more on top of that (1–14). Europe, as of 2007, was essentially homogeneous in this respect. A very confusing aspect is the fact that a Wi-Fi signal actually occupies five channels in the 2.4 GHz band resulting in only three non-overlapped channels in the U.S.: 1, 6, 11, and three or four in Europe: 1, 5, 9, 13 can be used if all the equipment on a specific area can be granted not to use 802.11b at all, even as fallback or beacon. Equivalent isotropically radiated power (EIRP) in the EU is limited to 20 dBm (0.1 W).
Click to expand...
 
Cheers guys - thats what i tried telling them!

Ill give it another go - only other option is running a 20M serial cable which will be inacurate over 6M apparently?
 
JackCarver said:
Cheers guys - thats what i tried telling them!

Ill give it another go - only other option is running a 20M serial cable which will be inacurate over 6M apparently?
Click to expand...

Anything over 5.5 metres i believe and you lose some data.

Just tell *** guy, Wifi runs at 2400mhz while your system uis rated to 900mhz max. Different frequencies mean different Lines basically. There will not be a conflict.
 
Point out that mobile phoes, radio 1, handheld walkie talkies etc dont intefer with his wifi because of this clever frequency stuff and see if he gets it.
 
You must log in or register to reply here.
Back
Top Bottom