[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [IRCA] Wellbrook Large Aperture Loop Antenna ALA100LN

My understanding from Andrew Ikin was that a loop considerably different in size from that for which the amplifier is designed, creates an impedance mismatch that eats into the gain that is available from the amplifier. 

best wishes,

Nick


At 06:37 05-02-16, you wrote:
Mark, I think that Colin and Don are correct. Super large diameter ALA 100 loops don't seem to improve things substantially on LW. Don't know why, but that's the way it is. 73,...Walt On Thu, Feb 4, 2016 at 12:43 PM, Mark Durenberger Mobile < Mark4@xxxxxxxxxxxxxxx> wrote: > Walt: I'm curious; does LW signal strength improvement justify a 100 ft. > circumference or beyond? I s'pect there's a practical/empirical-best-size; > probably beyond 60 feet...but where would you suggest stopping? > > Cheers! > > > Mark Durenberger > On The Road Again > > -----Original Message----- From: Walter Salmaniw > Sent: Tuesday, February 02, 2016 8:39 PM > To: Mailing list for the International Radio Club of America > Subject: Re: [IRCA] Wellbrook Large Aperture Loop Antenna ALA100LN > > > Les, you will have no issues with signal strength. The ALA 100 works very > well this way, but, the bigger the loop, the more signal you will have. > Mine are from 20' circumference to well over 100'. I remember my first try > was with a small loop of perhaps 10' around, and I wasn't impressed. Big > is better! Walt > > On Wed, Feb 3, 2016 at 12:56 AM, Les Rayburn <les@xxxxxxxxxxxxxxxx> wrote: > > Walter, >> >> I have an ALA1530 S+ that performs well, but again with low signal levels >> overall. S/N ratio is great and I get really good bi-directional nulls >> with >> this antenna on a rotor. >> >> Hoping the ALA100LN will provide more signal level that the Flag Iâ??m using >> now. >> >> Donâ??t think the bi-directional nature of the antenna will be an issue. >> With the exception of flamethrowers like WSB 750 in Atlanta, I donâ??t have >> a >> high number of pests to the East that are blocking reception of desired >> stations in the West. The â??problem childrenâ?? tend to be more North of my >> location, or South with Cubans. >> >> Fingers crossed. >> >> 73, >> >> >> Les Rayburn, director >> High Noon Media Services >> 130 1st Avenue West >> Alabaster, AL 35007-8536 >> 205-621-7500 >> 205-621-7505 FAX >> 205-253-4867 CELL >> highnoonfilm.com >> >> [This message and any attached documents contain information from the >> sender that may be confidential and/or privileged. If you are not the >> intended recipient please notify the sender immediately by reply e-mail >> and >> then delete this message. Thank you.] >> >> >> >> >> > On Feb 2, 2016, at 6:48 PM, Walter Salmaniw <canswl@xxxxxxxxx> wrote: >> > >> > Les, I have many ALA 100s and FLG 100s. It's not quite so easy as what >> > everyone says, though. Don't forget they are Bi-directional. If that's >> an >> > issue, it may pose problems for you. Apart from that, I can't argue > >> with >> > any of the other comments. Wellbrook makes premium products. ....Walt >> > Salmaniw >> > >> > On Tue, Feb 2, 2016 at 2:23 PM, Les Rayburn <les@xxxxxxxxxxxxxxxx> >> wrote: >> > >> >> Just ordered the North American version of the Wellbrook Large Aperture >> >> Loop Antenna ALA-100LN. Iâ??d like to hear from other users on the list >> who >> >> have used this antenna for MW DXing. >> >> >> >> Iâ??m going to replace the termination and feed point portions of a >> >> â??Flagâ?? >> >> antenna that I have mounted on wooden poles at the edge of my >> >> property.. >> >> It >> >> favors the West, but even with a pre-amp the signal levels are low. >> Hoping >> >> for stronger signals from the ALA100LN. >> >> >> >> >> >> >> >> >> >> 73, >> >> >> >> Les Rayburn, N1LF >> >> Marlene, AL >> >> EM63nf >> >> >> >> Member WTFDA, IRCA, NRC. Former CPC Chairman for NRC & IRCA. >> >> >> >> >> >> _______________________________________________ > > >> IRCA mailing list >> >> IRCA@xxxxxxxxxxxxxxxx >> >> http://montreal.kotalampi.com/mailman/listinfo/irca >> >> >> >> Opinions expressed in messages on this mailing list are those of the >> >> original contributors and do not necessarily reflect the opinion of the >> >> IRCA, its editors, publishing staff, or officers >> >> >> >> For more information: http://www.ircaonline.org >> >> >> >> To Post a message: irca@xxxxxxxxxxxxxxxx >> >> >> >> >> > _______________________________________________ > > > IRCA mailing list >> > IRCA@xxxxxxxxxxxxxxxx >> > http://montreal.kotalampi.com/mailman/listinfo/irca >> > >> > Opinions expressed in messages on this mailing list are those of the >> original contributors and do not necessarily reflect the opinion of the >> IRCA, its editors, publishing staff, or officers >> > >> > For more information: http://www.ircaonline.org >> > >> > To Post a message: irca@xxxxxxxxxxxxxxxx >> > >> >> _______________________________________________ > > IRCA mailing list >> IRCA@xxxxxxxxxxxxxxxx >> http://montreal.kotalampi.com/mailman/listinfo/irca >> >> Opinions expressed in messages on this mailing list are those of the >> original contributors and do not necessarily reflect the opinion of the >> IRCA, its editors, publishing staff, or officers >> >> For more information: http://www.ircaonline.org >> >> To Post a message: irca@xxxxxxxxxxxxxxxx >> >> >> _______________________________________________ > IRCA mailing list > IRCA@xxxxxxxxxxxxxxxx > http://montreal.kotalampi.com/mailman/listinfo/irca > > Opinions expressed in messages on this mailing list are those of the > original contributors and do not necessarily reflect the opinion of the > IRCA, its editors, publishing staff, or officers > > For more information: http://www.ircaonline.org > > To Post a message: irca@xxxxxxxxxxxxxxxx > > _______________________________________________ > IRCA mailing list > IRCA@xxxxxxxxxxxxxxxx > http://montreal.kotalampi.com/mailman/listinfo/irca > > Opinions expressed in messages on this mailing list are those of the > original contributors and do not necessarily reflect the opinion of the > IRCA, its editors, publishing staff, or officers > > For more information: http://www.ircaonline.org > > To Post a message: irca@xxxxxxxxxxxxxxxx > > _______________________________________________ IRCA mailing list IRCA@xxxxxxxxxxxxxxxx http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@xxxxxxxxxxxxxxxx 


_______________________________________________
IRCA mailing list
IRCA@xxxxxxxxxxxxxxxx
http://montreal.kotalampi.com/mailman/listinfo/irca

Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers

For more information: http://www.ircaonline.org

To Post a message: irca@xxxxxxxxxxxxxxxx