INNOV HF Log Periodic Dipole Array

BOLPA-10 A Super Wide Band, High Performance Log Periodic Dipole Array (LPDA) - 14MHz to 30MHz Optimised for all Ham Bands Just 7.7m long.

All LPDA’s are design using the very latest computer optimisation techniques and are largely designed and built to order although examples such as this Band Optimised Log Periodic Dipole Array (BOLPA).

The BOLPA-10 has 10 elements placed within a twin-boom/dual feedline boom setup where 2 x 1.75'' square boomd double as the feedlines and booms. The feed point is 50Ohm so a simple choke balun can be installed between coax cable and the antenna for an easy installation.

The BOLPA-10 provides excellent, consistent results for the frequency range it covers and the relatively limited number of elements installed upon its very short boom.

Log Periodic Arrays are generally produced by means of a calculator rather than being band specifically optimised and therefore, performance and SWR curves vary greatly through their range and optimimum performance is hit and miss as a result. The BOLPA-10 has had hundreds of hours spent optimising both SWR and Performance within the Ham Radio designated band sections which has resulted in exceptional mono-band style performance.

The BOLPA-10 has all-bands-active at any one time so will compliment the most sophisitcated SDR Tranceivers, with up to 6 slices on 6 different bands (20m, 17m, 15m, 12m, 11m, 10m) all at the sam time.

Specification

• Gain: 6.9 - 7.5dBi
• Typical F/B: 20dB+
• Gain at 10m (33') above ground @ 14.150MHz: 11.56dBi
• Power Rating: 5kw
• Feed Impedance: 50Ohm
• Boom Length: 7.7m
• Weight: 47Kg
• Turning Radius: 5.13m
• Wind Loading: 1.4 SqMtr
• Wind Survival: 100 MPH+