Here you go! These are recent measurements from our lab.
Filter 20kHz 10kHz 5kHz 2kHz
200 Hz, 5 pole 100+ 100+ 100+ 95
250 Hz, 8 pole 100+ 100+ 100+ 95
400 Hz, 8 pole 100+ 100+ 100+ 95
500 Hz, 5 pole 100+ 100+ 100+ 94
1 kHz, 8 pole 100+ 100+ 100 94
2.7 kHz, 5 pole 100+ 98 92 n/a
2.8 kHz, 8 pole 100+ 100 93 n/a
These are typical numbers and may vary a couple of dB from radio to
radio or filter to filter.
73, Eric WA6HHQ
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