Directive Systems New Products
Fresh from the 2013 Central States VHF Conference in Chicago. Directive Systems displays the new 5, 6 and 7 element 6m beams. These are basically the same great antennas sold by C3i since the 90ís with a few enhancements.
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Accepting orders NOW!!!
1276LY -- New version of our 1376LY antenna (see below) designed specifically for Phase IIID downlink operation. The 1276LY has a specially drilled sub boom with u-bolts to allow installation on a horizontal cross boom of up to 2" in diameter. This antenna is linear polarized, with 23.5 dBi gain, and in actual use, will outperform 3 ft dishes for 2400 MHz AO-40 reception. Windloading is much less than equivalent solid dishes, typically 1/6th that of a similar gain dish. 10.7 degree beamwidth with 25 dB front to back ratio. Length is 12 feet. Wind area is approx. 1.1 Sq Ft.
DSH23-12 23 cm RHCP 12 turn helix 14.5 dBic gain in a machined radome for best weather protection. 1.2-1.3 GHz bandwidth. 50 ohm feed with N (f) connector on 8" backplane. All stainless hardware; Designed for PHASE 3D uplink operation. Wide bandwidth actually covers from 900 - 1600 MHz.
DSH12-27 2400 MHz (12cm) RHCP 27 turn helix 18.1 dBic gain in a machined PVC radome for best weather protection. 2.3-2.5 GHz bandwidth. 20 degree beamwidth; 50 ohm feed with N (f) connector on 8" backplane; All stainless hardware; 34" overall length; Designed for PHASE 3D operation, and other circular polarization modes within the 1.8 to 2.8 GHz frequency range.
1376LY 2304 "BLOWTORCH" long loop yagi. This antenna produces 23.5 dBi gain on a 144" boom for incomparable performance on 2304 megahertz. The rugged 3/4" square sub boom provides the ruggedness to survive any and all weather. The 10.5 degree beamwidth and 25 dB F/B ratio have inspired the BLOWTORCH "moniker", while the light windloading has inspired many to discard their old parabolic dishes in favor of the BLOWTORCH. Truly inspired individuals can stack pairs or quads of 1376LYs for even higher gain. A quad array will equal a 6 ft dish!
9112LYK 3456 MHz "BLOWTORCH" Antenna. 9 cm. super gain long loop yagi for the 9 cm band! A 12 foot boom length and 112 elements provide 25.2 dBi gain at 3456 MHz. Structural support is provided by an additional sub boom to produce a very strong antenna. Type N (F) feedpoint, 8.7 degree half power beamwidth. This antenna will compare with a 32" dish but with much less windloading than a comparable dish. Only available in kit form. Check this link for information on the Microwave Update Antenna Measuring results for a quad array of these antennas. 9112LYK
5.7FEED A 5760 MHz
dish feed for .39-.45 f/d ratio parabolic dishes. All brass and copper
construction with Type N connector feed for low loss coax. Tuned for 5760 MHz -20 dB return loss.
DBFEED 5.7/10 GHz feed for ,39-.45 F/D microwave dishes Patterned after the W5LUA dual band feed design. Brass and Copper construction with SMA 5.7 & 10 GHz feed connectors. This dual band feed has very high isolation of 10 GHz energy at the 5.7 GHz port. Measured at -30 dB or more,
this will allow a few watts of 10 GHz energy to not interfere with a low noise 5.7 GHz preamplifier on the other port! The 5.7 to 10 GHz isolation is over 70 dB. More details and plots will appear shortly . Stay Tuned!
10GHZFEED Single band feed for 10 GHz. This new feed is optimized for the .6 meter .45 f/d spun aluminum dish with a brass choke ring positioned concentrically around the waveguide. Actual gain is about 1 dB greater than the dual band feed on 10,368 MHz. The 10GHZFEED fits a standard strut assembly with 7/8" opening.
1327LYRM New rear mount loop yagi for 2304 MHz roving, the 1327LYRM is a rear mount four foot long yagi with 18 dBi gain . This is a higher performance version of our 3 ft long 1321LYRM loop yagi . The rear mount provision makes installation a snap for mobile vehicles where antenna space is at a premium. Connector is a Type N (f) UG-58/U. Frequency range of 2250-2350 MHz with top performance.