[Elecraft] KX2 Receive problem!?

[Wayne Burdick]

Paul,

First thing to check is to make sure the preamp is on, and the attenuator turned off. Both are selected using the PRE switch. The KX2 is an SDR, and typically such rigs have about -120 dBm MDS with preamp off, and -135 dBm with preamp on. This can make a huge difference on a quiet band. 

The dynamic range is good enough that you can probably leave the preamp on all or most of the time. 

Let me know if your received signals are still down after turning on the preamp. If that doesn't fix it, you could have APF turned on (very narrow audio peaking filter), or NR turned on (noise reduction), or you could have a problem with a bandpass filter, etc.

73,
Wayne
N6KR


On Jan 18, 2017, at 8:32 AM, Paul Smith <n0nbd at outlook.com> wrote:

> I have a KX2 nr 855 I bought in August.This is my first venture in in a sophisticated radio. I have been operating kit built rigs for years. My KX2 has the latest firmware  MCU revision 02.69.
> 
> The receive seems to be down quite a bit. My antennas are a 102 ft doublet at 50 ft and a Zepp at 50 feet. Each fed with 450 ladder line. On the 4SQRP nets I have been frequently been told they can hear me and I hear NO ONE.
> 
> The question is could someone share the setup information with me for filters and such. My ears do not require much filtering as my old ELMER used to YELL at me use the filter between ur ears. I have made some contacts but I would like to hear more.
> 
> Thanking in advance de Paul N0NBD
> 
> 
> Sent from Outlook<http://aka.ms/weboutlook>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Elecraft at mailman.qth.net
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to n6kr at elecraft.com