I asked the Elecraft service technician this question during a troubleshooting session on the phone last week, and he told me the built-in preamp has 10 dB gain. That's approximately two S units. My listening experience on 160 meters with a preamp with 17 dB gain suggests that 10 dB is about right, because I hear approximately one S unit difference between the two preamps. I didn't ask which frequencies it was optimized for, e.g. low bands or all bands.
Nelson, KU0A -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Fred Jensen Sent: Saturday, November 15, 2008 10:55 PM To: Elecraft Reflector Subject: [Elecraft] K3 - Preamp gain Can someone tell me how much gain [like in S units] I should see from the preamp? This will sound weird but with the preamp on, the band is full of sweepstakes signals, many very strong. With it off, it is almost silent. 15 is quieter than 20 with the preamp off, 20 and 40 are about the same -- preamp off = just discernible signals. I've probably set something wrong in one of the menus, just don't know what. 73, Fred K6DGW - Northern California Contest Club - CU in the 2009 Cal QSO Party 3-4 Oct 2008 - www.cqp.org _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.175 / Virus Database: 270.9.4/1792 - Release Date: 11/16/2008 10:04 AM _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
