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Directive Systems & Engineering
Directive Systems & Engineering VHF, UHF, Microwave Antennas and related products
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2m SSPA
50 MHz 4 Yagi Antenna Stack
50 MHz 4 Yagi Contesting Array
Building the Super Rover
Coax Cable Effects on the Higher Bands
Larcan High Band SSPA Conversion 222 MHz
Larcan items Directive Systems can Supply
Larcan Power Supply Board Layout
Larcan Power Supply Schematic
Magnetometer for Auroral Detection
Multiple Loop and Yagis on One Mast
Power Dividers & Phasing Line Use
Stacking Loop Yagis
SWR and Return Loss Chart
T-Matching Tuning Notes
Owner Bio
6m (50 MHz)
2m (144 MHz)
1.35m (222 MHz)
70cm (432 MHz)
33cm (902 MHz)
24-23cm (1.2 GHz)
23cm (1270 – 1300 MHz)
24cm (1240 – 1270 MHz)
13-3cm (2.3 GHz +)
13cm (2300 – 2350 MHz)
12cm (2350 – 2480 MHz)
9cm (3400 – 3500 MHz)
6cm & 3cm (5.7 GHz and 10 GHz)
Commercial
Parts & Acc.
Parts
Phasing Lines
Power Dividers
Stacking Frames
Testimonials
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T-Matching Tuning Notes
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T-Matches