Topband: Preamplifiers

[Michael Walker]

I was going to mention both Clifton Labs and the Active-Antenna.eu site.

Mike va3mw


On Mon, Feb 2, 2015 at 7:10 PM, <donovanf at starpower.net> wrote:

> Hi Andy ,
>
> I use preamps from three different manufacturers in my station :
>
> - DX Engineering RPA-1 $143.95
> - Clifton Labs Z10043 (or Z10042) Norton Preamp $100.00 (with enclosure)
> - Advanced Receiver Research P1-30/20VD $69.95
>
> I use W3LPL bandpass filters in front of every preamp because
> of the extreme out-of-band signal levels in my multi-multi station.
>
> All three types of preamps perform very well, I've detected no
> practical difference in performance among the three types of preamps
> used on my Beverages and 8-circle receiving arrays.
>
> The Clifton Labs Norton preamp is clearly superior on 15 and 10
> meters because it appears to be unconditionally stable. The same is
> not true of the ARR preamps which self-oscillate on 15 and 10 meters
> when fed through a band pass filter. I've never observed the self-
> oscillation problem with ARR preamps on 160 through 20 meters.
>
> 73
> Frank
> W3LPL
>
>
>
> ----- Original Message -----
>
> From: "Mike Waters" <mikewate at gmail.com>
> To: "Andy YO3JR" <andyrusse at gmail.com>
> Cc: "topband" <topband at contesting.com>
> Sent: Monday, February 2, 2015 9:17:32 PM
> Subject: Re: Topband: Preamplifiers
>
> This is what I use:
> www.w0btu.com/W0BTU-broadband-preamps.html
>
> 73, Mike
> www.w0btu.com
>
> On Mon, Feb 2, 2015 at 3:08 PM, Andy YO3JR <andyrusse at gmail.com> wrote:
>
> >
> > Can someone recommend me a good preamplifier for the beverage antennas on
> > 80/160m?
> >
> > I found on the market a few like Z10043 Norton Amplifier, KD9SV dual band
> > preamp, RPA-1 from DX Engineering.
> >
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