[Boatanchors] HQ-180 bandwidth

[Gary Schafer]

It is doing exactly the same thing but with twice the bandwidth when you use
"both".

73
Gary  K4FMX

> -----Original Message-----
> From: Carl [mailto:km1h at jeremy.mv.com]
> Sent: Saturday, September 26, 2009 11:11 AM
> To: Gary Schafer; 'Joe Roth-WC4R'; boatanchors at mailman.qth.net
> Subject: Re: [Boatanchors] HQ-180 bandwidth
> 
> That method also gives lots of adjacent channel bleed over as well as
> rather
> severe distortion on the ones Ive listened to.
> 
> The USB or LSB method sounds mo betta.
> 
> Carl
> KM1H
> 
> 
> ----- Original Message -----
> From: "Gary Schafer" <garyschafer at comcast.net>
> To: "'Carl'" <km1h at jeremy.mv.com>; "'Joe Roth-WC4R'" <wc4r at live.com>;
> <boatanchors at mailman.qth.net>
> Sent: Saturday, September 26, 2009 11:03 AM
> Subject: RE: [Boatanchors] HQ-180 bandwidth
> 
> 
> > Yes, 3 Kc of recovered audio if the carrier is centered in the band pass
> > with the selector switch in "both". But if you tune the carrier off to
> one
> > side so that you are only copying one side band then you have 6 Kc
> > recovered
> > audio bandwidth in the both position.
> >
> > If you are in USB or LSB position you can readily select upper or lower
> > side
> > band (with carrier centered as you suggested) by changing the switch
> > position but you only have 3 Kc of recovered audio band width as the
> > filter
> > is only 3 Kc wide in these positions.
> >
> > 73
> > Gary  K4FMX
> >
> >> -----Original Message-----
> >> From: Carl [mailto:km1h at jeremy.mv.com]
> >> Sent: Friday, September 25, 2009 9:08 PM
> >> To: Gary Schafer; 'Joe Roth-WC4R'; boatanchors at mailman.qth.net
> >> Subject: Re: [Boatanchors] HQ-180 bandwidth
> >>
> >> Now you have it right and we are back to Square One with that setup, 3
> kc
> >> of
> >> audio recovery.
> >>
> >> Carl
> >> KM1H
> >>
> >>
> >> ----- Original Message -----
> >> From: "Gary Schafer" <garyschafer at comcast.net>
> >> To: "'Joe Roth-WC4R'" <wc4r at live.com>; <boatanchors at mailman.qth.net>
> >> Sent: Friday, September 25, 2009 9:50 PM
> >> Subject: Re: [Boatanchors] HQ-180 bandwidth
> >>
> >>
> >> > Correction: placing the USB/LSB/both switch to both, doubles the
> >> indicated
> >> > bandwidth. 3 KC becomes 6 KC in both.
> >> >
> >> > 73
> >> > Gary  K4FMX
> >> >
> >> >
> >> >> -----Original Message-----
> >> >> From: boatanchors-bounces at mailman.qth.net [mailto:boatanchors-
> >> >> bounces at mailman.qth.net] On Behalf Of Gary Schafer
> >> >> Sent: Friday, September 25, 2009 8:42 PM
> >> >> To: 'Joe Roth-WC4R'; boatanchors at mailman.qth.net
> >> >> Subject: Re: [Boatanchors] HQ-180 bandwidth
> >> >>
> >> >> When in the 3 kc bandwidth position it provides 3 kc if in SSB mode.
> >> >> Switching to AM mode changes the bandwidth to 6 kc.
> >> >> In other words the AM mode doubles the indicated bandwidth on the
> >> switch.
> >> >>
> >> >> 73
> >> >> Gary  K4FMX
> >> >>
> >> >> > -----Original Message-----
> >> >> > From: boatanchors-bounces at mailman.qth.net [mailto:boatanchors-
> >> >> > bounces at mailman.qth.net] On Behalf Of Joe Roth-WC4R
> >> >> > Sent: Friday, September 25, 2009 8:13 AM
> >> >> > To: boatanchors at mailman.qth.net
> >> >> > Subject: [Boatanchors] HQ-180 bandwidth
> >> >> >
> >> >> > I have a Hammarlund HQ-180C, all stock. Is there a reasonable way
> to
> >> >> > change
> >> >> > the 3 KC receive bandwidth to 5 or 6 KC? I don't want a butcher
> job.
> >> >> > Something clean & reversible.
> >> >> > Joe, WC4R
> >> >> >
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