Programming instructions

64 Designer’s Guide
Calsense
Local Radio Filter (model LR-FILTER)
The Calsense Local Radio Frequency Filter (model LR-FILTER) is a cavity resonator used to help prevent
interference from unwanted frequencies by filtering them out (Figure 38
). It is required when using a LR-
STICK antenna and recommended when using an LR-YAGI.
Figure 38 - Local Radio Filter