These are multi band center fed dipole antenna capable of 1 500 watts.
G5rv antenna in attic.
The vhf enhancer rods cover channels in the 2 13 range so that you have fewer blind spots and the smartpass amp helps the antenna deliver the correct balance of short and long range reception even when located in the attic.
Here s a guy that operates with a 102 g5rv at 18 and a half wave vertical dipole in a side yard tree about 20 at the top of the antenna covering 10m.
Power isn t actually radiated equally all over the antenna.
The g5rv antenna is based upon the doublet antenna concept and it was designed by louis varney who held the amateur radio callsign g5rv.
The antenna is in the attic probably only about 16 18 above the ground.
There will be hot spots and cold spots.
With the antenna in your attic you aren t even in the far field of the antenna.
I wanted an invisible antenna so i m starting with an attic mounted g5rv antenna.
Designed as 3 2 wavelength antennas for 14 mhz they provide reasonable performance on many other bands.
Then we heard a long testimonial about how he d set one up in his parents attic and worked a ton of dx how he still uses them to this day and how they re the perfect antenna for working all bands.
G5rv need to be mounted high enough that the ladder line is vertical for best operation.
The junior version from mfj that covers 40 meters through 10 meters on the ham bands.
If you want to give that up as modest losses to use a g5rv when other options are available that perform better and don t incur such losses go for it.
I have build the recommended balun using 10 wraps of the coax feed and a 5inch diameter pvc pipe.
You can see it s clear of metal objects and the ladder line goes off to the right at a 90 degree angle.
The g5rv multiband wire hf antenna provides a very convenient cost effective multiband antenna solution for hf ham radio communiations and as a result it has been popular for many years.
Mfj 1778m g5rv junior wire antenna multi band center fed dipole antennas.
It s laid out pretty much as good as i can but the 450ohm ladder line is most certainly more horizontal than perpendicularly and vertical to the antenna.
Not a good multi band antenna.
At one point that g5rv was laying on top of a hedge row.
Calculating the actual fields is really hard.
Ground reflections and also any wiring in your house may reflect distort or focus the field making more hot spots.
They cover all bands from 40 10 meters with a wide range antenna tuner.
