No. What will matter is the quality of the connectors. The 1st IF output from the K3 is low level, the P3 is basically a fairly sensitive HF receiver, and bad connectors can create all sorts of problems.

You didn't give a S/N range for your K3, but there is a simple mod [destroy one surface mount resistor and replace it with a non-SMC resistor] that will raise the IF output.

73,

Fred K6DGW
- Northern California Contest Club
- CU in the Cal QSO Party 1-2 Oct 2016
- www.cqp.org

On 1/15/2016 5:15 PM, Bert Rollen wrote:

I am setting up a LP-PAN with my K3.

Will I cause much problem by using a 75 ohm jumper on the IF ?  (I happen to
have several fairly nice 24" Belden 8263 BNC jumpers on hand).

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