[Elecraft] [K3] FM filter schematics?

2024-05-13 Thread Jon Iza
Folks, the KFL3-FM filter seems to be hard to get, but Chinese copies of the CW filters are available at fair prices. There is a page with the schematics of all the "narrow" Elecraft filters KFLxx-A but not for the -B FM filter. I have an schematic for an LC filter in order to listen with wide

[Elecraft] Checking offset of K3 IF filters

2023-03-02 Thread Jon Iza
Folks, some K3 filters have an offset with respect to the IF central frequency that the firmware on the rig can compensate. Sometimes the "offset labels" are gone and poking a zero offset on the configuration is the only option. I guess that feeding noise into the antenna and using an audio

[Elecraft] EA3BLQ, SK

2005-07-25 Thread Jon Iza
Folks, it is with great regret that I announce the passing of Paulí Núñez i Iglesias, EA3BLQ. http://www.qsl.net/ea3blq/angles.htm For those of you that have thinkered with the K2 on digital modes, he was the provider of a very nice kit that fit inside the rig, that you may see at