[amsat-bb] Re: Need Advice for SDR choice
vk4tec at tech-software.net
Mon Jan 3 17:01:03 PST 2011
Can someone please explain to me how the IF is usefull ?
Does the radio become "narrow band" after the IF stages ?
What determines the radio IF bandwdith ?
Say my ICOM 706 can RX 430 - 450 MHZ, does that imply the whole 20 MHz is
there centered on 10.7 MHz ?
- Andrew -
----- Original Message -----
From: "Greg D." <ko6th_greg at hotmail.com>
To: <vlfiscus at mcn.net>; <amsat-bb at amsat.org>
Sent: Tuesday, January 04, 2011 10:19 AM
Subject: [amsat-bb] Re: Need Advice for SDR choice
>> Date: Mon, 3 Jan 2011 14:26:55 -0700
>> To: amsat-bb at amsat.org
>> From: vlfiscus at mcn.net
>> Subject: [amsat-bb] Re: Need Advice for SDR choice
>> At 06:25 PM 1/2/2011 -0500, marklhammond at gmail.com wrote:
>> I'm going to look into SDR. My Icom r-7100 has an IF out jack I could
>> into a unit.
> That was my first thought too, but R-7000 receiver's IF is at 10.7 MHz and
> the FCD only goes down to 64 MHz.
> On the other hand, the R7000's tuning range isn't that different from the
> FCD, and I bet the FCD has better specs, so why bother with the receiver?
> Greg KO6TH
> Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
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