I have two MLA-30+ antennas mounted on two separate masts. Will it work to put them together with a coaxial splitter at the base of the masts and run it to the receiver IF the antennas are facing 90° to each other at different levels? The idea here is to widen the area covered for listening but I'm not sure if they will compliment or conflict with each other. Listening to WWV didn't seem to have a difference.
Using 2 MLA-30+ Antennas with a Splitter
- Thread starter Aremel
- Start date
@Aremel
I purchased a Hula Hoop which is 92cm diameter. The Hula Hoop is obviously perfectly circular and made of Aluminium (some say Copper pipe is a better) and disassembled the MLA-30+ circuit board, solder new coax to the board (Messi & Paoloni UltraFlex 7) and install the Loop on an antenna rotator. I do not see great improvement by rotating the Loop from North/South to East/West or any position from 0 to 360 degrees. North/South facing works best for me.
I purchased a Hula Hoop which is 92cm diameter. The Hula Hoop is obviously perfectly circular and made of Aluminium (some say Copper pipe is a better) and disassembled the MLA-30+ circuit board, solder new coax to the board (Messi & Paoloni UltraFlex 7) and install the Loop on an antenna rotator. I do not see great improvement by rotating the Loop from North/South to East/West or any position from 0 to 360 degrees. North/South facing works best for me.
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Ubbe
Member
I have a ALA loop from England, don't remember the model name, that I had it on a pallet on a flat roof and it where a noticeable difference if I had the loop north-south or east-west. But the max signal isn't changing much when you rotate a loop but the null are more prominent and can be used for direction finding or reducing an unwanted interfering signal.
/Ubbe
/Ubbe
prcguy
Member
I don’t see much point in that based on how narrow the null is, you should be able to park just one loop in a position that will pick up everything you need. If you do combine two I would make sure the cable lengths are identical between the antennas and splitter to avoid signals combining out of phase and degrading or canceling.
Ubbe
Member
The wavelength at higher frequencies will have a bigger impact. If you listen to the 10 meter band the positive and negative wave are 5 meters apart. If one antenna are 5 meters closer to the RF source than the other it will totally cancel out the signal if the two antennas have the same output signal level. That's how those noise cancelers work, to use two antennas and electronically change one antennas distance to the source by using phase shift to make it receive an interfering signal in its opposite phase.
/Ubbe
