Blueprint Service · Example report
Band Pass Filter - measurement blueprint
This is an example of the measurement report delivered with our Blueprint Service. It documents a unit's real RF performance so you have a verified baseline "fingerprint" of your gear. Sample data shown for a 20 m band-pass filter.
Example / sample data - not a real unit
Insertion loss & return loss vs. frequency
S21 (insertion loss) and S11 (return loss) swept 0-35 MHz. Amateur band centers marked for reference.
Trace shape is representative: low, flat insertion loss across the 20 m passband with steep skirts and deep rejection of adjacent and harmonic frequencies.
Key parameters
| Parameter | Measured | Spec / target | Result |
|---|---|---|---|
| Center frequency | 14.175 MHz | 14.0-14.35 MHz | PASS |
| Insertion loss @ 14.175 MHz | 0.30 dB | ≤ 0.6 dB | PASS |
| Insertion loss @ band edges (14.00 / 14.35) | 0.35 / 0.40 dB | ≤ 0.8 dB | PASS |
| Return loss in passband (worst case) | 20.5 dB (VSWR 1.21) | ≥ 18 dB | PASS |
| −3 dB bandwidth | 13.4 - 15.1 MHz | covers 20 m | PASS |
| Rejection @ 7.0 MHz (40 m) | 62 dB | > 55 dB | PASS |
| Rejection @ 21.0 MHz (15 m) | 57 dB | > 55 dB | PASS |
| Rejection @ 28.35 MHz (2nd harmonic) | 64 dB | > 55 dB | PASS |
| Power rating (per manufacturer) | 4,500 W ICAS | - | - |
| Connectors | N-type, female | - | - |
Summary: unit meets or exceeds published performance for insertion loss, match, and out-of-band rejection. Measured values are recorded as the baseline blueprint for this serial number. All figures on this page are example data for demonstration only.
Want a blueprint of your own gear?
We can characterize your filters, amplifiers, switches, and more - and deliver a report like this one for your unit.