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Re: Topband: Hi Z amplifiers for 160m

To: topband@contesting.com
Subject: Re: Topband: Hi Z amplifiers for 160m
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Wed, 11 Mar 2020 10:34:52 -0700
List-post: <mailto:topband@contesting.com>
On 3/11/2020 6:28 AM, GEORGE WALLNER wrote:
Assuming a trans-impedance amplifier, "unity gain" is enough (with reasonable size elements). Noise and IP3 are far more important. Lightning and surge immunity are also important. Also, isolate the amp from common mode noise travelling on the feed-line. Filter the power supply well. Use an F connector (a high quality one that can be torqued.)

Agreed, but I would add power on the coax.

73, Jim K9YC
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