See attached.
If your email system/client filters the file from this email, you can get a
copy in the archive at the link at the bottom of this email.
Jim
wb8vsu@mvus.org
I think you will find that stacked 'halos' don't work worth a @^%&#!
They are mounted one up, one down, thus are 180 deg out of phase giving a nullat the horizon. Unless the phasing harness has 180 deg delay on one leg or thegama match has been moved to the other side of the element.
Kent WA5VJB
From: Jim Bacher via mvus-list <mvus-list@febo.com>
To: MVUS LIST mvus-list@febo.com
Sent: Friday, December 9, 2016 3:43 PM
Subject: [mvus-list] MVUS Anomalous Propagation / November-December 2016
See attached.
If your email system/client filters the file from this email, you can get a
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Jim
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Well I believe from more closely looking at the photo that the lower ant is fed with a different length of cable for the phase shift needed. That is the two meter loops. The 432 loops look correct to me from the photo.
Randy WB8ART
-----Original Message-----
From: mvus-list [mailto:mvus-list-bounces@febo.com] On Behalf Of KENT BRITAIN via mvus-list
Sent: Friday, December 9, 2016 5:42 PM
To: Jim Bacher; MVUS LIST; Midwest VHF/UHF Society Mailing List
Subject: Re: [mvus-list] MVUS Anomalous Propagation / November-December 2016
�I think you will find that stacked 'halos' don't work worth a �@^%&#!
They are mounted one up, one down, thus are 180 deg out of phase giving a nullat the horizon. � Unless the phasing harness has 180 deg delay on one leg or thegama match has been moved to the other side of the element.
Kent WA5VJB
From: Jim Bacher via mvus-list <mvus-list@febo.com>
To: MVUS LIST mvus-list@febo.com
Sent: Friday, December 9, 2016 3:43 PM
Subject: [mvus-list] MVUS Anomalous Propagation / November-December 2016
See attached.
If your email system/client filters the file from this email, you can get a
copy in the archive at the link at the bottom of this email.
Jim
wb8vsu@mvus.org
mvus-list mailing list
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It would need an asymetrical harness to come out in phase.
From: Randy Midkiff <ranmid@gmail.com>
To: 'KENT BRITAIN' wa5vjb@flash.net; 'Midwest VHF/UHF Society Mailing List' mvus-list@febo.com
Sent: Friday, December 9, 2016 5:37 PM
Subject: RE: [mvus-list] MVUS Anomalous Propagation / November-December 2016
Well I believe from more closely looking at the photo that the lower ant is fed with a different length of cable for the phase shift needed. That is the two meter loops. The 432 loops look correct to me from the photo.
Randy WB8ART
-----Original Message-----
From: mvus-list [mailto:mvus-list-bounces@febo.com] On Behalf Of KENT BRITAIN via mvus-list
Sent: Friday, December 9, 2016 5:42 PM
To: Jim Bacher; MVUS LIST; Midwest VHF/UHF Society Mailing List
Subject: Re: [mvus-list] MVUS Anomalous Propagation / November-December 2016
�I think you will find that stacked 'halos' don't work worth a �@^%&#!
They are mounted one up, one down, thus are 180 deg out of phase giving a nullat the horizon. � Unless the phasing harness has 180 deg delay on one leg or thegama match has been moved to the other side of the element.
Kent WA5VJB
From: Jim Bacher via mvus-list mvus-list@febo.com
To: MVUS LIST mvus-list@febo.com
Sent: Friday, December 9, 2016 3:43 PM
Subject: [mvus-list] MVUS Anomalous Propagation / November-December 2016
See attached.
If your email system/client filters the file from this email, you can get a
copy in the archive at the link at the bottom of this email.
Jim
wb8vsu@mvus.org
mvus-list mailing list
mvus-list@febo.com
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I ran an identical setup from the mobile for years. It worked very well. I talked 500 miles on 2 meter SSB regularly. I worked from NC to Maine during an opening on 432. I did have to reverse the wiring in one of the loops to maintain phase. I also had a 1/4 x 3/4 wavelength harness on 432 simply because the spacing was too far for a symmetrical harness. I suppose I should mention that I was running 300 watts on 2M and 100 watts on 432. The whole antenna was on a home made hinge so I could fold it over for my garage and parking garages, etc… It didn’t look real pretty but it sure did work.
Dave, K4TO
On Dec 9, 2016, at 6:38 PM, KENT BRITAIN via mvus-list mvus-list@febo.com wrote:
It would need an asymetrical harness to come out in phase.
From: Randy Midkiff <ranmid@gmail.com>
To: 'KENT BRITAIN' wa5vjb@flash.net; 'Midwest VHF/UHF Society Mailing List' mvus-list@febo.com
Sent: Friday, December 9, 2016 5:37 PM
Subject: RE: [mvus-list] MVUS Anomalous Propagation / November-December 2016
Well I believe from more closely looking at the photo that the lower ant is fed with a different length of cable for the phase shift needed. That is the two meter loops. The 432 loops look correct to me from the photo.
Randy WB8ART
-----Original Message-----
From: mvus-list [mailto:mvus-list-bounces@febo.com] On Behalf Of KENT BRITAIN via mvus-list
Sent: Friday, December 9, 2016 5:42 PM
To: Jim Bacher; MVUS LIST; Midwest VHF/UHF Society Mailing List
Subject: Re: [mvus-list] MVUS Anomalous Propagation / November-December 2016
�I think you will find that stacked 'halos' don't work worth a �@^%&#!
They are mounted one up, one down, thus are 180 deg out of phase giving a nullat the horizon. � Unless the phasing harness has 180 deg delay on one leg or thegama match has been moved to the other side of the element.
Kent WA5VJB
From: Jim Bacher via mvus-list <mvus-list@febo.com>
To: MVUS LIST mvus-list@febo.com
Sent: Friday, December 9, 2016 3:43 PM
Subject: [mvus-list] MVUS Anomalous Propagation / November-December 2016
See attached.
If your email system/client filters the file from this email, you can get a
copy in the archive at the link at the bottom of this email.
Jim
wb8vsu@mvus.org
mvus-list mailing list
mvus-list@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/mvus-list
mvus-list mailing list
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The antennas are M2 antennas with their stacking kit. So the cables,
spacing, etc should be Ok. They are about 11 years old.
I had great difficulties tuning them, and bought a second set. The second
set tuned right up. I then used the second set as a guide to fix the first
set. Timing worked out as about the time I had them working, MVUS need
beacon antennas for both bands.
Jim
WB8VSU
On Dec 9, 2016 7:45 PM, "Dave Sublette via mvus-list" mvus-list@febo.com
wrote:
I ran an identical setup from the mobile for years. It worked very well.
I talked 500 miles on 2 meter SSB regularly. I worked from NC to Maine
during an opening on 432. I did have to reverse the wiring in one of the
loops to maintain phase. I also had a 1/4 x 3/4 wavelength harness on 432
simply because the spacing was too far for a symmetrical harness. I
suppose I should mention that I was running 300 watts on 2M and 100 watts
on 432. The whole antenna was on a home made hinge so I could fold it
over for my garage and parking garages, etc… It didn’t look real pretty
but it sure did work.
Dave, K4TO
On Dec 9, 2016, at 6:38 PM, KENT BRITAIN via mvus-list <
mvus-list@febo.com> wrote:
It would need an asymetrical harness to come out in phase.
From: Randy Midkiff <ranmid@gmail.com>
To: 'KENT BRITAIN' wa5vjb@flash.net; 'Midwest VHF/UHF Society Mailing
List' mvus-list@febo.com
Sent: Friday, December 9, 2016 5:37 PM
Subject: RE: [mvus-list] MVUS Anomalous Propagation / November-December
2016
Well I believe from more closely looking at the photo that the lower ant
is fed with a different length of cable for the phase shift needed. That
is the two meter loops. The 432 loops look correct to me from the photo.
Randy WB8ART
-----Original Message-----
From: mvus-list [mailto:mvus-list-bounces@febo.com] On Behalf Of KENT
BRITAIN via mvus-list
Sent: Friday, December 9, 2016 5:42 PM
To: Jim Bacher; MVUS LIST; Midwest VHF/UHF Society Mailing List
Subject: Re: [mvus-list] MVUS Anomalous Propagation / November-December
2016
�I think you will find that stacked 'halos' don't work worth a �@^%&#!
They are mounted one up, one down, thus are 180 deg out of phase giving
a nullat the horizon. � Unless the phasing harness has 180 deg delay on one
leg or thegama match has been moved to the other side of the element.
Kent WA5VJB
From: Jim Bacher via mvus-list <mvus-list@febo.com>
To: MVUS LIST mvus-list@febo.com
Sent: Friday, December 9, 2016 3:43 PM
Subject: [mvus-list] MVUS Anomalous Propagation / November-December 2016
See attached.
If your email system/client filters the file from this email, you can
get a
copy in the archive at the link at the bottom of this email.
Jim
wb8vsu@mvus.org
mvus-list mailing list
mvus-list@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/mvus-list
mvus-list mailing list
mvus-list@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/mvus-list
mvus-list mailing list
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