[Lowfer] First Impressions: AMRAD Converter and Lowpass Filter

[Douglas D. Williams]

Hi Ben. Looks like JD and Zack got your 530 kHz situation sorted out.

Given my correspondence with Todd, I would advise replacing that RG174
between your LPF and converter. If you do have some spare LMR-195, that
would be ideal, IMO.

I happen to have a spare Todd Roberts converter. Would be interested to see
if anyone would be interested in doing some performance measurements
comparing the IC that Ben used with the original AMRAD IC.






On Tue, Feb 3, 2015 at 10:40 PM, Zack Widup <w9sz.zack at gmail.com> wrote:

> Yes, I can routinely hear the Cuban and a Canadian station fighting
> for best signal strength on that frequency. They are usually both
> louder than a local weather/info station.
>
> 73, Zack W9SZ
>
> On 2/3/15, Ben Hall <kd5byb at gmail.com> wrote:
> > On 2/2/2015 11:21 PM, JD wrote:
> >> There are two Cuban stations, a Canadian, and possibly a TIS/HAR station
> >> or two within your region that are actually on that channel (plus
> >> sometimes an NDB on 529), so I don't think hearing those really
> >> indicates anything wrong with the filter, as such.
> >
> > Ah ha!  A Cuban station would explain things perfectly!
> >
> > thanks much and 73,
> > ben, kd5byb
> >
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