The links on this page access plots of the measured responses of bandpass filters. Each plot is a pdf. The Blue curve is attenuation, the Red curve is VSWR, the Black curve is Return Loss. Readouts at each position of the cursor for these quantities are at the top left corner of each plot. The horizontal scale is 1-31 MHz, and a log sweep was used. The vertical scale is 10 dB/division for Attenuation and Return Loss, 1:1 VSWR is at the baseline, and the first division is 2:1.
W3NQN 160M
W3NQN 80M
W3NQN 40M
W3NQN 20M
W3NQN 15M
W3NQN 10M
TXBPF #1 160M
TXBPF #1 80M
TXBPF #1 40M
TXBPF #1 20M
TXBPF #1 15M
TXBPF #1 10M
TXBPF #2 160M
TXBPF #2 80M
TXBPF #2 40M
TXBPF #2 20M
TXBPF #2 15M
TXBPF #2 10M
Dunestar #1 160M
Dunestar #1 80M
Dunestar #1 40M
Dunestar #1 20M
Dunestar #1 15M
Dunestar #1 10M
Dunestar #2 160M
Dunestar #2 80M
Dunestar #2 40M
Dunestar #2 20M
Dunestar #2 15M
Dunestar #2 10M
ICE 419 #2 160M
ICE 419 #2 80M
ICE 419 #2 40M
ICE 419 #2 20M
ICE 419 #2 15M
ICE 419 #2 10M
ICE 419 #1 160M
ICE 419 #1 80M
ICE 419 #1 40M
ICE 419 #1 20M
ICE 419 #1 15M
ICE 80M Single Band
ICE 405 40M Single Band
Dunestar 300-4 80M Single Band
Dunestar 300-7 40M Single Band
Dunestar 300-14 20M Single Band
4O3A Series L 20M Single Band
4O3A Series L 15M Single Band
4O3A Series L 10M Single Band
ICE BCB Broadcast Band Reject High Pass Filter
Dunestar #2 Bypassed
TXBPF #1 Bypassed
Thanks to Bob Henderson, 5B4AGN for the 4O3A Series L measurements, which were done on an N2PK dual detector VNA.