andy,
for many years i used the Palomar preamp. it worked well in the presence of a
50kw AM station on 1550khz. though it may be of older design and there are
better pre-amps available it may be available at reasonable cost.
good luck.
larry
n7dd
-----Original Message-----
From: Andrew Ikin <andrew.ikin@btopenworld.com>
To: Andy YO3JR <andyrusse@gmail.com>; topband <topband@contesting.com>
Sent: Tue, Feb 3, 2015 1:55 pm
Subject: Re: Topband: Preamplifiers
Andy,
The Clifton Labs Norton and the RPA-1 are both Push-pull designs and thus
have high >+80dBm second order intercepts. This is essential to avoid BCB
mixing products affecting TB.
Single ended amplifiers like the W7IUV may need some pre BCB filtering.
73
Andrew Ikin G8LUG
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