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." <[email protected]> To: <[email protected]>; <[email protected]> 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: [email protected] >> From: [email protected] >> Subject: [amsat-bb] Re: Need Advice for SDR choice >> >> At 06:25 PM 1/2/2011 -0500, [email protected] wrote: >> >> I'm going to look into SDR. My Icom r-7100 has an IF out jack I could >> feed >> 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 [email protected]. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
