[HBR] Relay switched coils?

Ian Wilson ianmwilson73 at gmail.com
Thu May 27 13:38:14 EDT 2010


I assume that one reason for the HBR using plug-in coils was to get high Q,
thus high selectivity, good image rejection, etc, in the front end. Using a
traditional bandswitch involves long wires (somewhere), thus loss and stray
capacitance.

Would using small relays instead of a bandswitch could provide sufficiently
good connections and low strays to preserve the good performance of an
HBR-type
front end without plug-in coils?

73, ian K3IMW


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