Log Periodic Dipole
A Super Wide Band, High Performance Log Periodic Dipole Array – 10MHz to 54MHz inclusive
All InnovAntennas LPDA’s are design using the very latest computer optimisation techniques and are largely designed and built to order although examples such as this Dense Element Log Periodic Dipole Array (DELPA) are displayed and advertised in order to give an idea of our capabilities and pricing.
This antenna was specifically designed for a requirement at Broadcast Central Europe and the example photos display the DELPA-13 installed at the BCE broadcast centre.
The DELPA-13 has 11 elements placed above a 11.5m long 3’’ diameter boom of which all elements are insulated. The feed point is 200Ohm and is fitted with a 20KW 4:1 balun. Feed-line between the elements is hard-drawn copper wire which is silver plated and spaced in order to produce a 300Ohm balanced-line feed.
The DELPA-13 provides excellent, consistent results for the frequency range it covers and the relatively limited number of elements. For more details on this or other Log Periodic developments, contact as directly now on our sales lines or via Email sales ‘at’ innovantennas .com
Some of the Mechanical design benefits include:
- Marine grade Stainless Steel Fittings*
- Integrated feed-line/boom for maximum efficiency, minimum wind-load
- Sliver-plated balanced line feed
- Mill finished for highest levels of accuracy and performance
If you are looking for the best of the best from both a performance and mechanical construction perspective then look no further, you have come to the right place!
Customer Comment:
‘It performs like nothing I’ve ever seen. In the USA, we have some 3000 watt TV stations that broadcast FM audio on 87.75. There are 3 of them within 375 miles of me and with this antenna, I have heard them all! The gain and directivity far exceed the APS-13 that I took down. Somehow the word “amazing” doesn’t do this justice.’
Performance
Typical Gain: 6dBi
Typical F/B: 15dB
Gain at 10m (33′) above ground: 10dBi
Power Rating: 15kw+
Feed Impedance: 50 Ohm
Boom Length: 11.5m
Weight: 20Kg / 44LB
Turning Radius: 6.3m
Wind Loading: Upon Application
Wind Survival: 160KPH / 100MPH – Higher rated versions available upon request
If you wish to stack several antennas, contact us for more information
Specification
The largest eleemnts on this antenna start at the centre at 38mm (1.5”) diameter and taper to 10mm (3/8”). The singal boom version uses a 76mm (3”) square boom. The favoured twin-boom version has double 45mm square booms which also operate at the feedpoint.
The 10-54MHz LDPA directional antenna at K4ANP. Sadly, Len caught one of the elements and vent it during installation but SWR 1:1.4 thorughout.
The above is our favoured twin-boom version which will handle veyr high power input.
£1,995.00
![PICOAPRS V4 TINY APRS VHF [ Review in Spanish ]](https://qrznow.com/wp-content/uploads/2022/07/maxresdefault-3-90x60.jpg)
GPS experimenter and blog author e.p. has recently been posting about his experiments in which he uses an RTL-SDR dongle to receive GPS satellite sign... Read more
WSJT-X A new WSJT-X “release candidate,” version 2.0.0-rc4, now is available, and the version 2.0 Quick Start Guide has been revised and extended. The... Read more
A 90-year-old California radio amateur — Stan McEtchin, WB6KDZ, of Paradise — will be among the surviving members of the First Special Service... Read more
The 2016 AMSAT Space Symposium will be held aboard a commercial cruise ship departing from the port of Galveston, Texas. Sail dates are November 10-14... Read more
The University of Washington’s HuskySat-1 3U CubeSat, launched November 2, 2019, is set to deploy on January 31 after the vehicle that carried it to t... Read more
Recent Posts
RECEIVING AND ACQUIRING GPS POSITIONS WITH AN RTL-SDR DONGLE AND GPS ANTENNA
New Beta Version of WSJT-X is Now Available, Mock FT8 Contest Set
Ham Among Devil’s Brigade Members to Receive Medal
Cruising to the 2016 AMSAT Space Symposium
HuskySat-1 with VHF/UHF Linear Transponder Set to Deploy Soon
![FT-710 [ Update Sherwood Table of Receiver Performance ]](https://qrznow.com/wp-content/uploads/2022/10/308890099_5564727106936426_8010060531805418258_n-90x60.jpg)
![FT-710 [ Update Sherwood Table of Receiver Performance ]](https://qrznow.com/wp-content/uploads/2022/10/308890099_5564727106936426_8010060531805418258_n-180x120.jpg)
![XIEGU G106 [ Video Review ]](https://qrznow.com/wp-content/uploads/2022/09/g106-90x60.jpg)
![XIEGU G106 [ Video Review ]](https://qrznow.com/wp-content/uploads/2022/09/g106-180x120.jpg)
