Help with deciding a daughterboard for USRP N210.

[harip7]

Hello, i am looking at using N210 to sweep a low frequency range in MHz and also use a Rx board to receive a similar frequency. There are two options for the USRP - BasicTX/RX and LFTX/RX boards. will i be needing any extra hardware other than these daughterboards to do what i mentioned? 

[AgentAstronaut]

That's probably fine. You should make sure that the daughterboards have the bandwidth and frequency range you require. You will need both a motherboard (n210) and a daughterboard for each device. So you will need two n210s and two daughterboards - one for RX the other for TX. Some daughterboards support full duplex as well.

Cheers,

Michael

[harip7]

Thanks for your reply. I was just thinking of connecting a loop antenna to SMA port of daughterboard to communicate with the USRP. 

[AgentAstronaut]

Can you use paint or something else to layout your current plan for what your setup would look like? I want to make sure I understand your plan?

Cheers,

Michael

[harip7]

Yeah, the idea is as follows 

Tx:::

PC -> USRP+BasicTx Board -> Transmit Antenna

Rx::

Receiving Antenna -> USRP+BasicRX board -> PC

For the antennas, i am looking at a induction based antennas like a loop/coil and have both the transmit and receive antennas in close proximity much like NFC.

[AgentAstronaut]

Great, your setup looks like what I was expecting. I would try it with a cable before you use antennas to ensure that it works the way you expect (don't forget to place attenuation in the path to ensure no damage is done to the device). In general we do not make recommendations on Antennas but we you can purchase the following antennas through Ettus:

https://www.ettus.com/product/details/VERT400

https://www.ettus.com/product/details/VERT900

https://www.ettus.com/product/details/VERT2450

Cheers