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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
a.co/d/f1KWOVy
Gam3Gear Surecom SW-102S SO239 Connector Digital VHF UHF 125-525Mhz Power & SWR Meter
a.co/d/4fV31Fc
Long Antenna--Diamond Antenna Dual-Band Mobile Antennas NR770HBNMO
www.dxengineering.com/parts/d...
Short Antenna--TRAM 140MHz-170MHz + 430MHz-470MHz Dual Band NMO Antenna (1181):
a.co/d/cXpxDLg
Follow along as Penny gets a small upgrade.