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 July 2021 QST Cover Plaque award is “A Sensitive Field Strength Meter for Foxhunting,” by Woody White, KZ4AK. The QST Cove... Read more
Friday and Saturday, August 6 – 7, Russian cosmonauts onboard the International Space Station (ISS) will transmit slow-scan television (SSTV) images f... Read more
What is the best DMR Handheld Ham Radio you can get in 2021, and why? Today I take you through my Top 10 choices for DMR HTs, with an honorable mentio... Read more
AMSAT’s Engineering and Operations Teams have announced that AO-109 (RadFxSat-2/AMSAT Fox-1E) is now open for amateur use. AMSAT advises operators to... Read more
Radioddity has a new Mini Mobile DMR Radio about to be released which they are calling the DB-25-D. This is a small dual band DMR radio with 20W power... Read more
Michael, KI7QIB, is asking a simple question “Should I replace PL-259 connectors in a feedline with N-type connectors? Read more
“ On January 1, 2022 I will be retiring. I’ll be nearly 76 and want to spend more time at other things. EZNEC is and always has been devel... Read more
WSJT-X version 2.4.0 now is available in general release. According to co-developer Joe Taylor, K1JT, WSJT-X version 2.4.0, includes a... Read more