Topband: Preamplifiers

[Larry via Topband]

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 at btopenworld.com>
To: Andy YO3JR <andyrusse at gmail.com>; topband <topband at 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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