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> Scanner gain antenna 6 element beam log periodic vhf
Scanner gain antenna 6 element beam log periodic vhf
Scanner Gain Antenna 6 Element Beam Log Periodic VHF
Here is a very heavy duty log periodic beam antenna for the radio enthuisiast.
Although primarily designed as a receiving antenna this can be used on transmit as well.
My first impression of the antenna was how well it was constructed. Due to the inexpensive price, I was skeptical about the quality I would receive. I was pleasantly surprised. The antenna was very easy to assemble, it took about 15 minutes.
We are using the antenna to receive NOAA weather radio for our TV station. We have a digital sub-channel that displays our weather radar 24/7 with NOAA audio.
We were using a quarter wave whip antenna on the receiver, and weren t happy with the reliability. With the beam antenna installed, we now have a -63dBm received signal level. The NOAA audio is now very clean. Thanks for a great antenna.
THOUGHT I WOULD LET YOU KNOW THAT THE ANTENNA SEEMS TO WORK WELL., I MIGHT BE INTERESTED IN PURCHASING ANOTHER ONE DOWN THE ROAD.,
6 Element Beam covering 144 MHz to 175 MHz
8DBi gain across the entire VHF High band.
Antenna Input Impedance 50-75 Ohms
Front to Back Ratio 25 to 30 DB across the band.
These values were verified using both computer aided modeling and real world measurements made at my lab.
SWR, is 1.5 to 1 across 144 MHz to 175 MHz
Boom Material is 2 of 1" square .050" wall 6063 aluminum in parallel
Elements are made from solid .25" 6061-T6 high strength aluminum
Elements are bolted to the boom with stainless steel Nylock nuts to prevent them from ever loosening up.
Mounting bracket is fitted for a 1.5" diameter mast.
Stainless Saddle Clamps included
The antenna can also be flush mounted using the mounting flange. See the pictures
Your job will be to attach the elements, attach the feed line, and mount the antenna. Tools needed for the job will be a 7/16" wrench, and common pair of pliers. You will want to have some electrical tape handy to waterproof the SO-234 connector.
The elements are clearly marked as to their location on the boom. Simply insert the element into the corresponding hole and tighten the NyLock.
Total assembly time under 15 minutes.
* I build these Log Periodic antennas from the highest quality materials so they will work exceptionally well, and also tolerate the high winds, rain, ice loading that we get here in New England.
* The log periodic really excels at front to back ratio and front to side ratio and make a superior antenna for NOAA EAS weather broadcasts.
* Multipath and co channel interference are minimized by the highly directional characteristics.
* Added gain to pull the weak stations out of the noise.
* Low profile, light weight, versatile end mount design.
More info and antenna plots here
If there is another antenna , or some additional feature you would like to see added to this an antenna please send me an email.
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