I tweaked the 1090 antenna down to a 54mm insulated whip and tuned the 978 antenna to a 56mm whip. Both use 65mm insulated radials.
UPDATE …
When I installed both antennas into my project and checked their VSWR again, they both got worse (VSWR 3.6 & 2.6 and R~21 ohms for both).
Should I re-tune or leave them as-is???
