Our full technical support staff does not monitor this forum. If you need assistance from a member of our staff, please submit your question from the Ask a Question page.


Log in or register to post/reply in the forum.

Suitable Antenna for RF401A


JamesMc Mar 18, 2015 05:01 PM

Hello CS Community,

We have in production a 'trunk' node with a RF401 (& CR1000) and a 3db omni antenna. This particular trunk node services over a dozen downstream stations. Link distances range from 1 to 10 kilometers. Some stations have marginal links at times due to thick canopy, rain, etc. Since our trunk node is at a higher elevation than all of the downstream stations, we are considering a radio upgrade to the RF401A and a higher gain 6db omni antenna with a 6 degree down tilt beam. This is the antenna model we are considering:

http://www.dbspectra.com/products/896%252d960-MHz,-6-dBd,-Beam-Tilt-Omni,-DIN%28F%29-%28DS9A06F36U6D%29.html


Has anyone used an antenna like this before? Do you foresee any problems with this? Can you suggest any other solutions?

Thanks


JDavis Mar 19, 2015 08:51 PM

The RF401A can give a small range increase over the RF401.

Without seeing a map of the terrain and the site locations, I can't say if the proposed antenna would work better. Generally, higher gain antennas do so by focusing the radio signal. Other antennas within the signal pattern of the antenna will have a stronger link due to the higher gain. If there is a station outside of the more focused pattern, you would actually get a weaker signal.

Look at a map of your sight and superimpose the pattern from the antenna.

Log in or register to post/reply in the forum.