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Re: [Discuss-gnuradio] Antenna compatibility problem

From: SangHyoeg Kim
Subject: Re: [Discuss-gnuradio] Antenna compatibility problem
Date: Tue, 22 Mar 2016 23:44:13 +0900


ANT supports 75MHz - 1Ghz, but CBX supports 1.2GHz - 6GHz. 

I am confusing coverage of antenna and daughter board. 

What means these range?

Is this situation possible? 
- Center frequency 1.5Ghz with ANT500 
- Center frequency 325MHz with ANT500


2016. 3. 22. 오후 8:58 Nikos Balkanas <address@hidden> 작성:


There is no problem using these antennas with your board, as long as you terminate them correctly, 50 O.
You choose your antenna based on your coverage, not your board. So what coverage do you need?


On Tue, Mar 22, 2016 at 1:39 PM, SangHyuk Kim <address@hidden> wrote:

I'm using CBX daughter board which supports from 1.2GHz to 6.0GHz with ANT500 (from 75MHz to 1GHz).

Actually, I didn't know this antenna coverage. 

I have two question.

i) Is there any problem when I use ANT500 with CBX ?
I have tested QAM and QPSK performance using OFDM using those devices and the results are poor(very unstable, too many bit error in very short range).
So, I doubt this is antenna compatibility with CBX.

ii) Which antenna is best for CBX 40MHz(1.2GHz-6.0GHz) and USRP N210 ?
There are three products:
1) VERT400 (144MHz, 400MHz, 1200MHz Triband)
2) VERT900 (824-960MHz, 1710-1990MHz Dualband)
3) VERT2450 (2.4-2.5 and 4.9-5.9GHz Dualband)


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