Hi,
Try finding ferrites for your frequency (11 MHz) and google on BalUn
(balanced to unbalanced), http://en.wikipedia.org/wiki/Balun
You could also do it with COAX, impedance match using the Smith Chart,
if your antenna impedance is known eg
http://en.wikipedia.org/wiki/Smith_chart
Very usual
Hi,
i don't understand what can I do in this way with balun. Antenna is matched
very well I think, since I copied reference design from TI.
I am sure that spike comes from WBX LO because when I change center
frequency the spike also shifts. I'll remind about the configuration again:
USRP1 with
Of
Nemanja Savic
Sent: Monday, December 16, 2013 4:26 PM
To: Patrik Tast
Cc: usrp-us...@lists.ettus.com; GNURadio Discussion List
Subject: Re: [USRP-users] [Discuss-gnuradio] WBX Lo leakage to LFRX
Hi,
i don't understand what can I do in this way with balun. Antenna is matched
very well I think
*To:* Patrik Tast
*Cc:* usrp-us...@lists.ettus.com; GNURadio Discussion List
*Subject:* Re: [USRP-users] [Discuss-gnuradio] WBX Lo leakage to LFRX
Hi,
i don't understand what can I do in this way with balun. Antenna is
matched very well I think, since I copied reference design from TI.
I am sure
Hi,
Try a 1/4 shorted stub at 434 MHz (at the antenna).
Patrik (who said many times *not my fault* but usually is...)
On Mon, 2013-12-16 at 16:26 +0100, Nemanja Savic wrote:
Hi,
i don't understand what can I do in this way with balun. Antenna is
matched very well I think, since I copied
: [USRP-users] [Discuss-gnuradio] WBX Lo leakage to LFRX
Well, maybe I can use spectrum analyser with proper antenna, but what can I
achieve with that. If I see peak, I still have a problem to attenuate it.
On Mon, Dec 16, 2013 at 4:36 PM, Ralph A. Schmid, dk5ras ra...@schmid.xxx
wrote
:* Patrik Tast; usrp-us...@lists.ettus.com; GNURadio Discussion List
*Subject:* Re: [USRP-users] [Discuss-gnuradio] WBX Lo leakage to LFRX
Well, maybe I can use spectrum analyser with proper antenna, but what can
I achieve with that. If I see peak, I still have a problem to attenuate
