[OZAPRS] Falsonsat-3 overload
Glen English VK1XX
glenlist at pacificmedia.com.au
Mon Nov 6 06:09:15 AEDT 2017
Hi Andrew
what is your feedline loss ?
As you know , low end SDRs have very limited dynamic range, .. 45-50dB..
designed for TV reception, there is the assumption that all the TV
signals are about the same signal strength, which is a good assumption
in Ausralia (5dB ish required) , different in the USA.
Therefore any gain in front of the SDR must be very very carefully added.
I suggest you invest in a tight front end filter.
Maybe I can send you one grattis.
What freq ?
On 6/11/2017 3:47 AM, vk4tec at tech-software.net wrote:
>
> In an attempt to increase the signal strength I added a LNA in front
> of my AirSpy Mini
>
>
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> Whet I noticed was that the decodes went down
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> I tried some local signals
>
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> I noticed the signals were distorted.
>
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> So my advise is get antenna gain and high
>
>
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> Place the Software Defined Radio at the antenna
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> Be careful not to overload
>
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> Arrow and rotator coming
>
>
>
> Andrew
>
>
>
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