[Elecraft] K3 NB

[Fred Jensen]

Terry Conboy wrote:
> 
> How about some simple countermeasures (for a future firmware release):
> Blank, then transmit an equal length pulse (on a clear frequency, of 
> course), with optional automatic ID every N minutes.

If it's anything like the Russian woodpecker, it likely transmits a 
string of bits using a psuedo-random code in each "pulse', and the radar 
RX can separate it's own echoes from fake ones.

That's got to be very difficult noise for any NB.  My TS-850 has a NB 
designed for the old Russian woodpecker, but I don't know how it works, 
and that radar is gone now so I can't try it out.  Maybe there's some 
way to tailor the K3 DSP NB to the characteristics of the radar?

73,

Fred K6DGW
- Northern California Contest Club
- CU in the 2007 CQP Oct 6-7
- www.cqp.org