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SDR radio, Software Defined Radio
Antenna thread
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<blockquote data-quote="Llew" data-source="post: 970994" data-attributes="member: 175007"><p>LNA arrived today (an LNA4ALL), so I hooked it in circuit - not the ideal place, the antenna, but 3 metres into the total 21 metre run.</p><p>A 10 minute check, with a minute swopover between LNA in and out gave me over a third extra aircraft ( 130 against 80 without the LNA).</p><p></p><p>Also, spectrum scan at 1090 MHz with and without the LNA, with a max hold over 2 minutes for highest peaks.</p><p></p><p></p><p>[ATTACH=full]93140[/ATTACH]</p><p></p><p>[ATTACH=full]93141[/ATTACH]</p><p></p><p>[ATTACH=full]93142[/ATTACH]</p></blockquote><p></p>
[QUOTE="Llew, post: 970994, member: 175007"] LNA arrived today (an LNA4ALL), so I hooked it in circuit - not the ideal place, the antenna, but 3 metres into the total 21 metre run. A 10 minute check, with a minute swopover between LNA in and out gave me over a third extra aircraft ( 130 against 80 without the LNA). Also, spectrum scan at 1090 MHz with and without the LNA, with a max hold over 2 minutes for highest peaks. [ATTACH=full]93140[/ATTACH] [ATTACH=full]93141[/ATTACH] [ATTACH=full]93142[/ATTACH] [/QUOTE]
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