100MHz to 750MHz Log Periodic Array
InnovAntennas design and build Log Periodic Arrays for any bandwidth and for any purpose. Our LPDA’s can be designed and built for your specific needs to ensure the absolute best performance can be acheived.
NEW MODEL FOR 2018!
100-LOG-750 – 100MHz to 750MHz Log Periodic Array (LPDA) is a 50Ω direct fed directional wide band beam antenna for receiving and transmitting purposes. This antenna can be mounted vertically or horizontally and can handle up to 1KW of transmitted power.
As with all InnovAntennas products, only the highest quality materials are used including aerospace grade aluminium and marine grade (A4) stainless steel.
The 100-LOG-750 uses a twin-boom arrangement as a feed line as well as a dipole support. the feedlines are tapered in spacing to remove impedance spikes across its very wide bandwidth which are common in some badly designed LPDA’s. 13mm diameter elements are used to ensure maximum gain and bandwidth is acheived along with Front to Back ratio (F/B) and a specially designed 3 element parasitic element cell has bene placed in the feedline in front of the antenna to enhance top end performance, an area where traditional Log Periodic Arrays fall short.
Often, LPDA’s are designed with a 200Ω feed point which ensures bandwidth. However, this results in the need for a 4:1 transforming balun which both reduces efficiency and limits any input power too. The 100-LOG-750 has been computer optimised to present a 50Ω feed point to allow for direct connection to ocax cable and thus, power limitations are largely removed.
For all your Log Periodic requirements, contact InnovAntennas
Typical Gain: 7.5dBi
Peak Gain: 9.7dBi – @ 750MHz
Typical F/B: 20dB+
Input Power (max): 1Kw
Boom Length: 1290mm
Wind Survival: 150MPH+/250KPH+
Contact us with any questions you may have relating to your specific requirements or frequency ranges you would like to cover.
The winning article for the November 2018 QST Cover Plaque award is “Build an Inexpensive Dummy Load with Wattmeter” by Jack Purdum, W8TEE, and Al Pet... Read more
Amateur Radio repeaters and TV (ATV) have helped to keep the broader community informed on the local status of widespread fires in Southern California... Read more
Es’hail-2 AMSAT-NA has congratulated AMSAT-DL (Germany) and the Qatar Amateur Radio Society (QARS) for their roles in the successful launch on Novembe... Read more
Expert Electronics MB1 In this video I demonstrate how to update your Expert Electronics (SunSDR) MB1, for both software (ExpertSDR2) and firmware (as... Read more
“The Green Egg for Ham is a cute name for a 3D printed cover for your NMO antenna mounts. The Motorola style NMO mount is a popular style mount... 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