I would equivalent to ascension a 5/8 gesture wire vertical for 160m, victimisation a drone, across my photographer's model saltwater swamp. The thing must be powered from the ground, capable of being odd aloft for a family of hours while I work DX, and capable of hovering in position with windspeeds of up to 20 kph. IT should also be imperviable to RFI from a strong RF (KW) field. Helium provides ascent without the expenditure of power.
VHF Antennas - Antennas: VHF UHF
- Smart homebrew antenna-ELEVATOR system with lineal actuator. The actuator is a cheap and thick tool with high sufficiency torque, nonesuch for rising systems, but in effectuation it needs quite an campaign in ordering to operate correctly in your homebrew antenna system. - The tailing description should give back you guidance on how to build a mechanised antenna for HF bands yourself, using a very dirt cheap CB-mobile dessert transmitting aerial base. Antennas for mobile surgical operation 7Mhz ,10Mhz, 14Mhz, 18Mhz, 21Mhz, 24Mhz,28-430Mhz Bi type Antenna for 144/440 - This is a vertically polarized Broadside and linear Array from each one Loop is a vertically polarized advertisement Array both the precise and the left side of the fixing is a unerect 1/2 wave couple practical 180 degrees out of period of time with the other one and that gives you 4.15dbi of gain by KE4UYP habitus a hanging couple for 2 metres - delineated here is a simple omni-directional, vertically-polarized dipole for two meters.
Since 1986, M2 Antenna Systems has been assemblage high-quality antennas, positioners, and accessories for radio amateurs. Beginning with some of the archaean computer modeled and data processor Numerically limited (CNC) factory-made antennas, Mike Staal, K6MYC has applied his experience to organization and build the hunky-dory directional linear, cross-polarized and circular Yagis available. Innovation in antenna design has led to such unique Omni-directional antennas as the HO Loop and the wildly common “Eggbeater” satellite antenna.