[Elecraft] K3 loss of rx signal

[Ron D'Eau Claire]

Good point Frank. 

Amphenol specs leakage for their BNC connectors at 3GHz where they claim 55
dB. By comparison they claim 90 dB at 3 GHz for their type N connectors.

I've never felt the need for the additional shielding in the shack. 

Of course these are Amphenol specs. Any other brand may have any other level
of leakage. As many have noted, the extra price of a good connector is saved
many times over chasing bad cable connections later. 

BNC specs
http://www.amphenolrf.com/connectors/bnc.html

N specs:
http://www.amphenolrf.com/connectors/n-type.html

73, Ron AC7AC

-----Original Message-----
From: Elecraft [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of
donovanf at starpower.net
Sent: Monday, April 3, 2017 9:38 PM
To: Elecraft Reflector
Subject: Re: [Elecraft] K3 loss of rx signal

BNC connectors rate high for convenience and low for performance, especially
leakage performance. 


BNC connector leakage typicallymeasures in the range from -25 to 
-50 dB vs -60 to -90 dB for N connectors. Any BNC connector 
that does not fit snugly should replaced and discarded 


73 
Frank 
W3LPL