Dear All,
Our research project requires the use of sub-GHz daughterboards in the
USRP. We have identified the TVRX receiver board and RFX400
transceiver (is there any other option that supports the range that is
supported by the TVRX on TX side?). However, our confusion is on the
antenna to be used. We would like to take help from the community on:
- Is there a better transmitter option than the RFX400 that supports
the range supported by TVRX receiver (50-870MHz)?
- Which antenna should we go for?
- If EttusResearch doesn’t sell antennas in this range, can we go for
local made ones? If we do, does the hardware support them? Does anyone
have experience in this?
Thanks a lot in advance!
Regards,
Anand
Research Associate
Indian Institute of Science
On Wed, Dec 16, 2009 at 10:28:02PM +0530, Anand Padmanabha I. wrote:
Dear All,
Our research project requires the use of sub-GHz daughterboards in the
USRP. We have identified the TVRX receiver board and RFX400
transceiver (is there any other option that supports the range that is
supported by the TVRX on TX side?). However, our confusion is on the
antenna to be used. We would like to take help from the community on:
- Is there a better transmitter option than the RFX400 that supports
the range supported by TVRX receiver (50-870MHz)?
- Which antenna should we go for?
It depends. See if you can find some amateur radio operators near
you. They can provide suggestions.
- If EttusResearch doesn’t sell antennas in this range, can we go for
local made ones? If we do, does the hardware support them? Does anyone
have experience in this?
As long as you provide an antenna that looks like something near
50 ohms, the hardware doesn’t care.
There are tons of books and articles on antennas. Many of the
practically oriented amateur radio publications can provide quick
advice. A 1/4 wave monopole is a good place to start, and is trivial to
build. A discone will work reasonably over a much wider band, but is
physically much larger.
Eric