[Elecraft] [K2] Receiver overload protection

[Fred Jensen]

Well ... I can tell you with absolute certainty, zero doubt, that a 500 
W 80m CW transmission consisting on one dit can, and did, silence the 
front end of the K3 across the room on 75m for the remainder of the 
contest.  The antennas were probably in each other's near field.

Corollary Observation:  Bandpass filters [both rigs had them] are about 
as effective when both rigs are on the same band as bluffing in solitaire.

My advice, if you're in a situation where your K<anything> "could" get a 
high dose of RF is to use protection.  In this thread some time ago, 
several of the usual suspects on the list who tend to be right most of 
the time seemed to converge on 0 dBm as the absolute limit.  YMMV.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2014 Cal QSO Party 4-5 Oct 2014
- www.cqp.org

On 5/2/2014 2:59 PM, Matt VK2RQ wrote:
> Thanks Don. I was chatting to a fellow KX3 owner about how the KX3
> protects itself in the presence of strong RF, and he remarked that my
> K2 would probably do the same. When I looked into it, I was reaching
> similar conclusions as you, although I didn't find any information
> about maximum signal ratings for the mixer.