Tuning Penny's New GMRS Antenna with a NanoVNA

Penny's GMRS antenna was ok, but it being below the roofline of the vehicle made it choppy and inconsistent. Kenneth brought a new antenna on our most recent Moab adventure, and like most in this situation, replaced it in the hotel parking lot.

This time, he brought a new tool along, to help tune the new antenna. On Amazon, he picked up a NanoVNA. This device can be used an an antenna analyzer, providing more feedback results than a standard SWR meter. And it's not all that expensive!

Common Frequency ranges (Colorado Radio Amateur band-plan):
  70cm - 420.0-450.0  (FM Voice 438-446.700, 433.00-441.700, 440.700-446.275, 433.425-449.975)
  2m 144.1 - 148.0 Mhz (FM Voice 146.400-147.585, 144.500-145.500, 146.0-148.0)
  GMRS - 462.550 - 467.712500
  CB - 25.165 - 28.755 Mhz (26.965 - 27.405 MHz common)

AURSINC NanoVNA-H Vector Network Analyzer 10KHz -1.5GHz Latest HW Version 3.6
https://a.co/d/f1KWOVy

Gam3Gear Surecom SW-102S SO239 Connector Digital VHF UHF 125-525Mhz Power & SWR Meter
https://a.co/d/4fV31Fc

Long Antenna--Diamond Antenna Dual-Band Mobile Antennas NR770HBNMO
https://www.dxengineering.com/parts/d...

Short Antenna--TRAM 140MHz-170MHz + 430MHz-470MHz Dual Band NMO Antenna (1181):
https://a.co/d/cXpxDLg

Follow along as Penny gets a small upgrade.