[Elecraft] [K2] Preamp?

[Ron D'Eau Claire]

I almost never use a preamp. Sure turning it on increased band noise but
that does not mean I can hear weaker signals. 

The best simple test you can do is to disconnect the antenna. If the band
noise drops when you disconnect the antenna, you have all of the sensitivity
you can use. 

Adding the preamp just cripples the dynamic range of your K2 - its ability
to handle strong signals without causing artifacts that sound like noise
across the band obscuring weak signals you want to hear. 

73, Ron AC7AC

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Gil G.
Sent: Monday, October 29, 2012 5:15 PM
To: Elecraft at mailman.qth.net
Subject: [Elecraft] [K2] Preamp?

Hello,

I am curious as to how much of the time you guys have your preamp on?
Mine is on 100% of the time. I actually never had to turn it off.
I couldn't dream of ever using the attenuator. My K2 seems to hear pretty
well, but not without the preamp.

Has anyone heard of changing R76 from 10 Ohms to 6.8 Ohms?

Thanks.

Gil.

Gil.
--
PGP Key: http://keskydee.com/gil.asc

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