Re: Harmonics and Relay Replacement


Kees T
 

I measured about 2pF across the N/O and N/C contacts (when open) and about 4-5pF from the relay armature to the coil, just like the datasheet mentions for that relay. The relays I tested were the same type "16 pin" relay of various brands, who knows who actually manufactured them. 

A drop of 15dB is surprisingly high for one brand. Since you measured that LPF on 40m, what do other bands show ?

I would set the RBW to 100KHz or 300KHz

73 Kees K5BCQ 

Join BITX20@groups.io to automatically receive all group messages.