InnovAntennas 144 MHz OWL Ultra Yagi Antennas offer the 2 meter weak-signal enthusiast undeniable low-noise performance with amazing SWR bandwidth, particularly good gain and an excellent front-to-back ratio. Five Optimized Wideband Low-impedance (OWL) Ultra Yagi antennas are available, starting with six element up through ten element models. InnovAntennas' OWL Ultra Yagi beams have been extensively numerically simulated and optimized using special software that includes a 3D simulation of the boom, the insulators, the connector and the cable; an elaborate numerical simulation of these antennas that was inconceivable a decade before. InnovAntenna has achieved the best of what is technically possible for a wideband 2 meter Yagi.

The boom of the 144 MHz OWL Ultra Yagi is 1 in. (25mm) square aluminum featuring through-the-boom insulated elements. The adjustable center fed folded dipole has the side opposite the 50 ohm feedpoint connected to the boom, which removes static charge to protect the transceiver. This antenna acts like a band-pass and noise filter outside the 2 meter band, due to rapidly rising impedance. However, the most important feature of OWL Ultra Yagi antenna is optimization for reduced side lobe in the elevation plane, achieving dramatically reduced received noise, even in high ambient noise city locations.

The InnovAntennas OWL Ultra Yagis are suitable for all "weak signal modes" on the low end of the 2 meter band due to the optimization for high gain with incredibly low noise for EME, Meteor Scatter, Tropo-DX, Sporadic-E, etc. Despite the robust construction (the antennas can withstand wind speeds of up to 100 mph (160 km/h), the Yagis are still relatively light and thus suitable for smaller masts or for stacking several antennas. The OWL Ultra Yagis do not include a balun, as the coaxial cable connects directly to the loop driven element dipole. The antenna can handle 5 kW, but the recommended choke balun handles a maximum power of approx. 1.0 to 1.5 kW is possible. Exceptionally good SWR is achieved over a wide frequency range. With excellent gain to noise ratios (G/T ratio), the economical InnovAntennas OWL Ultra Yagis are well suited for use in stacked arrays, for EME, satellite or terrestrial operations.

Key Benefits of InnovAntennas 144 MHz OWL Ultra Yagi Antennas:

• Closed Loop Feed System - The closed loop folded dipole system helps reduce the reception of man-made noise and static

• 50Ω Direct Feed - No Matching Loss - The OWL Yagi has been carefully Computer Optimized with the folded dipole in place to ensure a 50Ω feedpoint. This ensures no matching loss and minimal resistive loss.

• High F/B ratio - As with the LFA, the OWL Yagi has an exceptional Front to Back ratio for a direct feed 50Ω Yagi. Get rid of unwanted signals from behind your antenna!

• Super Wide Bandwidth - Nearly as broad-banded as the LFA (Loop Fed Array), the OWL Yagi has excellent bandwidth properties. This ensures very large portions of the band can be used with little return loss.

• Constant Impedance & 'All-Weather' Stability - Similar to the LFA, the OWL is able to maintain impedance in wet weather and therefore will not de-tune like other antennas.

• Class-Leading Sky Temperature and G/T figures - For Earth-Moon-Earth and other weak signal modes, only the G0KSC LFA Yagi comes close to the OWL. Search for the VE7BQH G/T Table and compare the OWL with other beam antennas.

• Super light-weight Design & Construction - The mechanical requirements of the OWL (with thru-boom elements) make it super lightweight, an ideal choice for contest and field day operations.

• Simple SWR Fine-Tuning Feature - No two locations for an antenna are the same. With this in mind the requirements of the perfectionist as well as the everyday user considered, the folded dipole of the OWL has adjustable end sections to allow for very simple SWR fine tuning.

Your antenna is a part of your receiver and arguably the most important part of your station. You have spent thousands on radio equipment; make sure you don't short-change your set-up by choosing anything other than an InnovAntennas OWL Ultra Yagi.