Finally got around to sweeping my DPD Productions ADS-B antenna which has 100ft of LMR-400 attached to it. The antenna is about 30ft off the ground. The UPUtronics 1090Mhz Ceramic Preamp+Filter included in the final sweep. That weird spike looks a little fishy so it may just be noise from the preamp..? Not sure.
And yes, I did recalibrate the VNA for the higher frequency range. The SWR is probably a little lower than the 1.44 indicated because I hit the button by accident just before taking the screenshot. I believe it was around 1.35-ish at 1090 Mhz.
dpdproductions.com
DPD ADS-B Antenna:
v3.airspy.us
DPD ADS-B Antenna + UPUtronics 1090 Mhz Ceramic Preamp+Filter:
And yes, I did recalibrate the VNA for the higher frequency range. The SWR is probably a little lower than the 1.44 indicated because I hit the button by accident just before taking the screenshot. I believe it was around 1.35-ish at 1090 Mhz.
ADS-B Vertical Outdoor Base Antenna (Standard 1090 MHz ES)
Specs Gain: 9 dBi SWR: 1.5:1 or Less Pattern: Omni-directional Wavelength: Multiple 1/2 Tuned: 1090 MHz Band: Mode-S / ADS-B Connector: N Female Cable: RG8X Cable Length: 24 Inches Height: 57" Width: 1 1/4" Weight: 1 lb 11 oz Wind Area: 0.50 Sq Feet Features Ready Made: There's...
dpdproductions.com
DPD ADS-B Antenna:
1090 MHz ADS-B Filter/Preamp – Airspy.US
v3.airspy.us
DPD ADS-B Antenna + UPUtronics 1090 Mhz Ceramic Preamp+Filter:
