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LF: Re: [rsgb_lf_group] - Funcube on 630M

To: [email protected]
Subject: LF: Re: [rsgb_lf_group] - Funcube on 630M
From: "Roelof Bakker" <[email protected]>
Date: Tue, 31 Oct 2017 16:58:07 +0100
In-reply-to: <006201d3525c$e1c3f0e0$a54bd2a0$@com>
References: <CAHAQVWM6+s3q5VJygki6ceNj+g0C4Y84mxKp_KPqRVL+dH70vA@mail.gmail.com>, <006201d3525c$e1c3f0e0$a54bd2a0$@com>
Reply-to: [email protected]
Sender: [email protected]
Hello Joe,

I guess you are plagued with intermod products caused by strong MW 
broadcast stations. The simplest solution is to use a low pass 
filter with a cutt off frequency of 520 kHz. This way, I have tamed 
a number of low cost SDR's.

At the moment I have a cheap 20 Euro RTL-SDR V3 dongle in direct 
sampling mode, which performs remarkably well. It needs a tuneable 
pre-amplifier followed by a 530 kHz low pass filter.

73,
Roelof Bakker, pa0rdt

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