Apache Labs ANAN-100/D - HPF;LPF Filters and Switching

Apache Labs ANAN-100/D
HPF/LPF Filters and switching in ANAN-100/D
The ANAN-100/D have a very effective set of High Pass Filters (HPF) and Low Pass Filters (LPF), available on
the Setup, General, Ant/Filters/HPF/LPF tab. The HPF and LPF are automatically selected as you change bands,
according to the settings on this form.
The ByPass check box on the left side of the HPF/LPF tab, when checked, removes the selected high pass filter
from the receive path.
The values in the up/down boxes control the frequency ranges when these filters are automatically selected.
The 6m BPF/LNA bypass check mark controls the 6 meter low noise amplifier and filtering.
The ByPass/55mhz HPF check mark, when enabled bypasses all high pass filters.
The active buttons displayed between the HPF and LPF show which filters are currently active.
The Auto/Manual radio buttons should be left in Auto mode for most operations. Selecting manual will allow you
to see what receive filters are selected when you bypass or change receiver frequency ranges etc.
Revision v1.8 April 23, 2013 29 of 70 authors N9VV and KC9XG