Antenna/Amplifier for BladeRF for GSM Application
Posted: Mon Sep 15, 2014 8:19 am
Has anyone tried amplifying the send and receive of BladeRF for GSM (800/900/1800/2100MHz) applications? Its 4mW (based on posting in forums) is very low - not reaching beyond a few feet in the test lab.
I have contacted companies with products like
http://3gstore.com/product/5015_cellpho ... tenna.html and they hesitate to say it would work with BladeRF because they have never had a customer with it before. They also raised a concern that because TX and RX are separate (unlike typical GSM equipment including mobile phones and modems), then each may require a separate amplifier each with its own antenna - but that positioning amplifiers less than 10 ft apart could create interference. One suggested connecting both the TX and RX to a splitter (under normal use, the 2 "OUT") so that they become a single connector (normally the "IN") that can then be connected to a single amplifier + antenna.
Unfortunately we do not have the funding to simply buy just to experiment - we would not want to purchase something that we could potentially just set aside for not working and moving on to the next amplifier.
Does anyone have experience on this? Thanks
I have contacted companies with products like
http://3gstore.com/product/5015_cellpho ... tenna.html and they hesitate to say it would work with BladeRF because they have never had a customer with it before. They also raised a concern that because TX and RX are separate (unlike typical GSM equipment including mobile phones and modems), then each may require a separate amplifier each with its own antenna - but that positioning amplifiers less than 10 ft apart could create interference. One suggested connecting both the TX and RX to a splitter (under normal use, the 2 "OUT") so that they become a single connector (normally the "IN") that can then be connected to a single amplifier + antenna.
Unfortunately we do not have the funding to simply buy just to experiment - we would not want to purchase something that we could potentially just set aside for not working and moving on to the next amplifier.
Does anyone have experience on this? Thanks