Reading the new manual for this antenna.
http://www.sirioantenne.it/prodotti_all.php?category=HF+(3-30+MHz)+Base+Antenna&antenna=++SY-3&idc=1008171241&idg=1008171169&idp=63
Sirio claims they optimized the antenna to allow users to adjust for 10 meter coverage. With knowledge of how a yagi works I assume it could always have been done.
I have the Sirio 3 element horizontally polarized on my tower now. It is setup for 11 meter.
I no longer have interest in 11 meters. The antenna gets no use these days.
If I remove the antenna and cut the elements as the manual states then it should make my antenna resonant on 10 meters?
It looks simple. Remove the pvc cap off each element, cut each element to size, put pvc cap back on, and adjust gamma match for lowest swr at the desired frequency.
Now the problem. Trying to set up the antenna that way near ground level.
Understanding its not possible to do this work with the antenna still on the tower.
Most likely what ever I see on my antenna analyzer near the ground will change once its back on the tower.
I have a 5ft tripod and like 15ft of mast I can use. Even if I have to guy the mast and use a ladder to make adjustments. I put wood planks on the legs of the tripod to help level and avoid it from falling over.
If this is still going to cause ground loss interference I have heard that putting a yagi a few feet off the ground pointing up at the sky will mimic what you will see when put back on the tower.
Now do I rest the reflector on something wood or plastic that is long, tall, and stout enough to support the yagi pointing at the sky?
If so what could I use?
I imagine a conductive surface would ruin the whole process.
Can I use non conductive guy rope tied to the boom of the yagi to help support it while pointing up at the sky? I can't hold it up since my body is conductive and that will also ruin the whole process.
A yagi is a great thing but sometimes the setup can be a pain in the and make using a vertical much easier.
The Sirio 3 ele worked great on 11 meter so I can only assume it would be great on 10 meter as well.
73,
SMILEX2692002
http://www.sirioantenne.it/prodotti_all.php?category=HF+(3-30+MHz)+Base+Antenna&antenna=++SY-3&idc=1008171241&idg=1008171169&idp=63
Sirio claims they optimized the antenna to allow users to adjust for 10 meter coverage. With knowledge of how a yagi works I assume it could always have been done.
I have the Sirio 3 element horizontally polarized on my tower now. It is setup for 11 meter.
I no longer have interest in 11 meters. The antenna gets no use these days.
If I remove the antenna and cut the elements as the manual states then it should make my antenna resonant on 10 meters?
It looks simple. Remove the pvc cap off each element, cut each element to size, put pvc cap back on, and adjust gamma match for lowest swr at the desired frequency.
Now the problem. Trying to set up the antenna that way near ground level.
Understanding its not possible to do this work with the antenna still on the tower.
Most likely what ever I see on my antenna analyzer near the ground will change once its back on the tower.
I have a 5ft tripod and like 15ft of mast I can use. Even if I have to guy the mast and use a ladder to make adjustments. I put wood planks on the legs of the tripod to help level and avoid it from falling over.
If this is still going to cause ground loss interference I have heard that putting a yagi a few feet off the ground pointing up at the sky will mimic what you will see when put back on the tower.
Now do I rest the reflector on something wood or plastic that is long, tall, and stout enough to support the yagi pointing at the sky?
If so what could I use?
I imagine a conductive surface would ruin the whole process.
Can I use non conductive guy rope tied to the boom of the yagi to help support it while pointing up at the sky? I can't hold it up since my body is conductive and that will also ruin the whole process.
A yagi is a great thing but sometimes the setup can be a pain in the and make using a vertical much easier.
The Sirio 3 ele worked great on 11 meter so I can only assume it would be great on 10 meter as well.
73,
SMILEX2692002
