You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
The Feb 2025 Radioddity Giveaway Results are In! Click Here to see who won!

Reply to thread

Message

Not to spill drinks at someone else's party. BUT I have a Sirio 7/8 wave and a Hygain 5/8 penetrator both on my roof, both tuned, same coax lenght, same SWR..etc.etc.
The Sirio hears better than the Hygain, however the Hygain so far out talks it. The S/N ratio of the Sirio appears to be better than the Hygain, probably since its 10 feet taller. However the Hygain appears to put out better both locally and distant ground wave.

I have read the Avanti patent and I am interested in how the modified version stacked up to the original configuration, which I am using. I believe the 3/4 wave length version which would bring it in at about 27-28 feet with the regular 15 degree angle upswept radials may be the better performer than the 31 1/2 foot 7/8 wave version. I am going to change the length today to the 3/4 version and see if their is any appreciable difference.

This may shed some light on the subject

http://www.hamhelpdesk.com/antennas/58-wave-j-pole-vs-12-wave-j-pole-eznec-shootout.html

And this

http://techdoc.kvindesland.no/radio/vhf_antennas/20061030163006789.pdf

<blockquote data-quote="supergonzo" data-source="post: 162836" data-attributes="member: 167">Not to spill drinks at someone else&#039;s party. BUT&nbsp; I have a Sirio 7/8 wave&nbsp; and a Hygain 5/8 penetrator both on my roof, both tuned, same coax lenght, same SWR..etc.etc.The Sirio hears better than the Hygain, however the Hygain so far out talks it. The S/N ratio of the Sirio appears to be better than the Hygain, probably since its 10 feet taller. However the Hygain appears to put out better both locally and distant ground wave.I have read the Avanti patent and I am interested in how the modified version stacked up to the original configuration, which I am using. I believe the 3/4 wave length version which would bring it in at about 27-28 feet with the regular&nbsp; 15 degree angle upswept radials may be the better performer than the 31 1/2 foot&nbsp; 7/8 wave version. I am going to change the length today to the 3/4 version and see if their is any appreciable difference.This may shed some light on the subject<a href="http://www.hamhelpdesk.com/antennas/58-wave-j-pole-vs-12-wave-j-pole-eznec-shootout.html" target="_blank">http://www.hamhelpdesk.com/antennas/58-wave-j-pole-vs-12-wave-j-pole-eznec-shootout.html</a>And this<a href="http://techdoc.kvindesland.no/radio/vhf_antennas/20061030163006789.pdf" target="_blank">http://techdoc.kvindesland.no/radio/vhf_antennas/20061030163006789.pdf</a></blockquote>

[QUOTE="supergonzo, post: 162836, member: 167"] Not to spill drinks at someone else's party. BUT I have a Sirio 7/8 wave and a Hygain 5/8 penetrator both on my roof, both tuned, same coax lenght, same SWR..etc.etc. The Sirio hears better than the Hygain, however the Hygain so far out talks it. The S/N ratio of the Sirio appears to be better than the Hygain, probably since its 10 feet taller. However the Hygain appears to put out better both locally and distant ground wave. I have read the Avanti patent and I am interested in how the modified version stacked up to the original configuration, which I am using. I believe the 3/4 wave length version which would bring it in at about 27-28 feet with the regular 15 degree angle upswept radials may be the better performer than the 31 1/2 foot 7/8 wave version. I am going to change the length today to the 3/4 version and see if their is any appreciable difference. This may shed some light on the subject [url]http://www.hamhelpdesk.com/antennas/58-wave-j-pole-vs-12-wave-j-pole-eznec-shootout.html[/url] And this [url]http://techdoc.kvindesland.no/radio/vhf_antennas/20061030163006789.pdf[/url] [/QUOTE]

Top Bottom