Z10043 used here.
It's sold by Jack Smith K8ZOA who is an instrumentation and test engineer -
which means all of his stuff is wrung out to the max. In the preamp
business, there are a lot of loosely defined claims but with Jack's preamps,
if you want a specific or special test performed on your unit (for example,
trimmed for optimal NF) he can arrange it.
73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie
-----Original Message-----
From: donovanf@starpower.net
Sent: Tuesday, February 03, 2015 9:10 AM
To: topband
Cc: andyrusse@gmail.com
Subject: Re: Topband: Preamplifiers
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@gmail.com>
To: "Andy YO3JR" <andyrusse@gmail.com>
Cc: "topband" <topband@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@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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