[Elecraft] FW: Need advice for K3 and RX BC AM

[Bob Wolbert]

Another issue is the antenna input. Main-receiver path signals below 1.5MHz
are attenuated to protect circuitry from ultra strong out-of-band
broadcasters. There are two solutions for improved AM broadcast band
reception.

1. Add the KBPF3 general coverage band pass filter option

2. Use a RX-only antenna in the KXV3's RX IN antenna jack (BNC).

Both of these techniques safely bypass the protective HPF built into the
main receiver path.

Regards,

Bob Wolbert  

> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net 
> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Don Wilhelm
> Sent: Monday, March 12, 2012 5:52 AM
> To: Jo, YC0LOW
> Cc: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] Need advice for K3 and RX BC AM
> 
> Jo,
> 
> Without adding the 6 kHz or 13 kHz filter, AM reception may be done 
> using the 2.7 (or 2.8) kHz filter for Synchronous AM reception.  That 
> gives you a full 2.7 kHz audio width instead of constraining 
> it to half 
> that width when using regular AM demodulation.
> 
> 73,
> Don W3FPR
> 
> On 3/12/2012 5:17 AM, Jo, YC0LOW wrote:
> > My Elecraft K3 has no AM filters installed. I tried to RX 
> AM broadcast
> > stations on MW band but had no success.
> > I'd be grateful if you could advice me to add it on, or, is 
> there a way to
> > do it as is, now pse?
> > I need it as features to check the 160m RX antenna 
> directions in the coming
> > YB8Y DXpedition (OC-221, GL PI64mh) starts in March 20th. 2012 .
> >
> > Tnx es 73 de Jo, YC0LOW
> >
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