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.