AMEN!! Charlie Cunningham, K4OTV Charles Cunningham, Jr. PE
-----Original Message----- From: Topband [mailto:[email protected]] On Behalf Of KB8NTY Sent: Friday, May 17, 2013 8:36 PM To: [email protected] Subject: Re: Topband: Topband Digest, Vol 125, Issue 17 Dean, Kreger Components, Has the best pricing! Better than all distributors, and their website displays available inventory on hand. A 100% woman owned & run company..you dont need to drop any names as they all will offer you first class service. -73- RossRadio Antenna Ground Radial Website: http://radialstaple.wordpress.com/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ www.kregercomponents.com. ----- Original Message ----- From: <[email protected]> To: <[email protected]> Sent: Friday, May 17, 2013 12:00 PM Subject: Topband Digest, Vol 125, Issue 17 > Send Topband mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.contesting.com/mailman/listinfo/topband > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Topband digest..." > > > Today's Topics: > > 1. "New beverage" (Ron Spencer) > 2. Re: "New beverage" (Joe Subich, W4TV) > 3. Re: "New beverage" (Tom W8JI) > 4. Re: "New beverage" (Herb Schoenbohm) > 5. Re: "New beverage" (John Kaufmann) > 6. Re: "New beverage" (Tom W8JI) > 7. Re: "New beverage" (PA5MW, Mark) > 8. New Filtering Technique (N7DF) > 9. RFI ferrites ([email protected]) > 10. Re: RFI ferrites (Andy Blank) > 11. Re: RFI ferrites (Shoppa, Tim) > 12. Re: RFI ferrites (N1BUG) > 13. Re: RFI ferrites (Richard Zalewski) > 14. Re: RFI ferrites (Charlie Cunningham) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 16 May 2013 10:19:30 -0700 > From: Ron Spencer <[email protected]> > To: [email protected] > Subject: Topband: "New beverage" > Message-ID: <[email protected]> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > After looking at their literature it appears to me that this is nothing > more then two beverages, one in each direction, with the "feed unit" > being, perhaps, a couple relays. I don't see the merit in using RG6 as > the beverage wire: its heavy, will need more supports, and compared to > other solutions, perhaps more expensive. And the fact that the feed unit > can be placed anywhere along the antenna? I must be missing something > clever because all that would seem to do is make one direction's wire > longer and the other shorter? > > Ron > N4XD > > > ------------------------------ > > Message: 2 > Date: Thu, 16 May 2013 13:38:42 -0400 > From: "Joe Subich, W4TV" <[email protected]> > To: [email protected] > Subject: Re: Topband: "New beverage" > Message-ID: <[email protected]> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > > Electronically both directions are "full length" ... I suspect the > design is similar to the one shown about half way down the page here: > http://kw2p.blogspot.com/2010/08/kw2p-beverage-antenna-designs.html > > 73, > > ... Joe, W4TV > > > On 5/16/2013 1:19 PM, Ron Spencer wrote: >> After looking at their literature it appears to me that this is nothing >> more then two beverages, one in each direction, with the "feed unit" >> being, perhaps, a couple relays. I don't see the merit in using RG6 as >> the beverage wire: its heavy, will need more supports, and compared to >> other solutions, perhaps more expensive. And the fact that the feed unit >> can be placed anywhere along the antenna? I must be missing something >> clever because all that would seem to do is make one direction's wire >> longer and the other shorter? >> >> Ron >> N4XD >> All good topband ops know how to put up a beverage at night. >> _________________ >> Topband Reflector >> > > > ------------------------------ > > Message: 3 > Date: Thu, 16 May 2013 13:57:50 -0400 > From: "Tom W8JI" <[email protected]> > To: <[email protected]> > Subject: Re: Topband: "New beverage" > Message-ID: <EAA7165BB8B747D7837397A7A8492CA7@tom0c1d32a93f0> > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=response > >> After looking at their literature it appears to me that this is nothing >> more then two beverages, one in each direction, with the "feed unit" >> being, perhaps, a couple relays. I don't see the merit in using RG6 as >> the beverage wire: its heavy, will need more supports, and compared to >> other solutions, perhaps more expensive. And the fact that the feed unit >> can be placed anywhere along the antenna? I must be missing something >> clever because all that would seem to do is make one direction's wire >> longer and the other shorter? > > Since the antenna is a transmission line, with suitable end and center > transformers, the feedpoint can be placed anywhere and the full length > used. > > With different transformers, any reasonable type of transmission line can > be > used. > > > > ------------------------------ > > Message: 4 > Date: Fri, 17 May 2013 14:44:29 -0400 > From: Herb Schoenbohm <[email protected]> > To: [email protected] > Subject: Re: Topband: "New beverage" > Message-ID: <[email protected]> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Good quality flooded RG-6 laying on the ground (BOG) might be an easy > install like before contests at some locations. However I have no idea > on how this would perform compared to an elevated version. If the > directivety is maintained and the S/N ratio is still usable then such a > concept would be worth considering. Such an installation might also be > considered for DX-peditions where supports for a normal Beverage are > just not available. Even for a short term use a normal consumer grade > 1000 foot roll of RG-6 is competitive with the same amount of #12 or 14 > THNN and certainly more competitive than 1000' of higher grade ladder > line. It is nice however having a vendor who offers a unique of the > shelf solution and it would nice to get some feedback on A/B checks with > the conventional Beverage. > > Herb, KV4FZ > > > > > On 5/16/2013 1:57 PM, Tom W8JI wrote: >>> After looking at their literature it appears to me that this is >>> nothing more then two beverages, one in each direction, with the >>> "feed unit" being, perhaps, a couple relays. I don't see the merit >>> in using RG6 as the beverage wire: its heavy, will need more >>> supports, and compared to other solutions, perhaps more expensive. >>> And the fact that the feed unit can be placed anywhere along the >>> antenna? I must be missing something clever because all that would >>> seem to do is make one direction's wire longer and the other shorter? >> >> Since the antenna is a transmission line, with suitable end and center >> transformers, the feedpoint can be placed anywhere and the full length >> used. >> >> With different transformers, any reasonable type of transmission line >> can be used. >> All good topband ops know how to put up a beverage at night. >> _________________ >> Topband Reflector > > > > ------------------------------ > > Message: 5 > Date: Thu, 16 May 2013 20:37:32 -0400 > From: "John Kaufmann" <[email protected]> > To: <[email protected]> > Subject: Re: Topband: "New beverage" > Message-ID: <004601ce5296$b97b9860$2c72c920$@[email protected]> > Content-Type: text/plain; charset="US-ASCII" > > Go to http://exax.net/index.html and scroll down the page to "center fed > steerable wave antenna". The diagram shows how you can feed a 2-wire > Beverage in the center, or anywhere along its length. The two > transformers > in the middle have center taps that pass signal currents from one side of > the antenna to the other side. Therefore the entire length of the > Beverage > is active at all times. I built one of these systems many years ago and > it > worked very well. > > The reflection transformers at the end function exactly the same as the > reflection transformers in a conventional 2-wire Beverage, and convert > common mode currents to transmission line currents that are sent back to > the > center of the antenna. The secondary windings of the two transformers in > the center pick off the transmission line currents and provide receiver > feeds for two directions. Functionally it is the same as a conventional > 2-wire Beverage of the same overall length, except it gives you the > convenience of feeding it anywhere. > > 73, John W1FV > > > ------------------------------ > > Message: 6 > Date: Thu, 16 May 2013 22:19:33 -0400 > From: "Tom W8JI" <[email protected]> > To: <[email protected]> > Subject: Re: Topband: "New beverage" > Message-ID: <DF563A423B7A4741AACDA14F5DF40542@tom0c1d32a93f0> > Content-Type: text/plain; format=flowed; charset="iso-8859-1"; > reply-type=original > >> Go to http://exax.net/index.html and scroll down the page to "center fed >> steerable wave antenna". The diagram shows how you can feed a 2-wire >> Beverage in the center, or anywhere along its length. The two >> transformers >> in the middle have center taps that pass signal currents from one side of >> the antenna to the other side. Therefore the entire length of the >> Beverage >> is active at all times. > > Except with coax, you would not connect across the center tap point. There > would be a direct connection across the shields, since the center has no > common mode (antenna mode) currents at all. > > With a true balanced line, the common mode (antenna mode) connection is > across a center tap. > > > > > ------------------------------ > > Message: 7 > Date: Fri, 17 May 2013 09:10:28 +0200 > From: "PA5MW, Mark" <[email protected]> > To: [email protected] > Subject: Re: Topband: "New beverage" > Message-ID: <[email protected]> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > I find the center/off-center feedpoint very attractive for those of us > cramped in between on a city lot. > You can hide a BOG-like coax along the neighbors property lines for 200 > to 500 ft in two directions, whatever suits you. > > The termination adjustment is done at your shack. Much preferred over > doing it on any open/public property, in the dark etc.. > > What I'm missing is detailed info on the installed height of this > reversible beverage and the involved effects at typical BOG heights from > 0 to 1/3 foot or so. > > 73 Mark, PA5MW > > > > On 17-5-2013 20:44, Herb Schoenbohm wrote: >> Good quality flooded RG-6 laying on the ground (BOG) might be an easy >> install like before contests at some locations. However I have no >> idea on how this would perform compared to an elevated version. If the >> directivety is maintained and the S/N ratio is still usable then such >> a concept would be worth considering. Such an installation might also >> be considered for DX-peditions where supports for a normal Beverage >> are just not available. Even for a short term use a normal consumer >> grade 1000 foot roll of RG-6 is competitive with the same amount of >> #12 or 14 THNN and certainly more competitive than 1000' of higher >> grade ladder line. It is nice however having a vendor who offers a >> unique of the shelf solution and it would nice to get some feedback on >> A/B checks with the conventional Beverage. >> >> Herb, KV4FZ >> >> >> >> >> On 5/16/2013 1:57 PM, Tom W8JI wrote: >>>> After looking at their literature it appears to me that this is >>>> nothing more then two beverages, one in each direction, with the >>>> "feed unit" being, perhaps, a couple relays. I don't see the merit >>>> in using RG6 as the beverage wire: its heavy, will need more >>>> supports, and compared to other solutions, perhaps more expensive. >>>> And the fact that the feed unit can be placed anywhere along the >>>> antenna? I must be missing something clever because all that would >>>> seem to do is make one direction's wire longer and the other shorter? >>> >>> Since the antenna is a transmission line, with suitable end and >>> center transformers, the feedpoint can be placed anywhere and the >>> full length used. >>> >>> With different transformers, any reasonable type of transmission line >>> can be used. >>> All good topband ops know how to put up a beverage at night. >>> _________________ >>> Topband Reflector >> >> All good topband ops know how to put up a beverage at night. >> _________________ >> Topband Reflector >> > > > > ------------------------------ > > Message: 8 > Date: Fri, 17 May 2013 06:53:09 -0700 (PDT) > From: N7DF <[email protected]> > To: "[email protected]" <[email protected]> > Subject: Topband: New Filtering Technique > Message-ID: > <[email protected]> > Content-Type: text/plain; charset=iso-8859-1 > > Is there a possibility that this filtering methodology?could be applied to > topband systems? > ? > http://www.spacewar.com/reports/Making_frequency_hopping_radios_practical_99 9.html > > ------------------------------ > > Message: 9 > Date: Fri, 17 May 2013 11:06:00 -0400 (EDT) > From: [email protected] > To: [email protected] > Subject: Topband: RFI ferrites > Message-ID: > <46649667.829544.1368803160688.javamail.r...@md20.quartz.synacor.com> > Content-Type: text/plain; charset=utf-8 > > > > > > HI All: > > > > I am looking for a source(s ) for mix 31 ferrites. Especially in the > larger sizes, like the FT 240. I have tried the usual suspects . Amidon, > Digikey, Mouser, Lodestar Pacific, to no avail. > > > > Any leads will be appreciated, either on or off the list. > > > > 73 to all > > > > Dean? W5PJR > > Tijeras, NM > > > ------------------------------ > > Message: 10 > Date: Fri, 17 May 2013 11:21:08 -0400 > From: Andy Blank <[email protected]> > To: [email protected] > Cc: [email protected] > Subject: Re: Topband: RFI ferrites > Message-ID: > <CAP+eefKy3T=55q_4aU8nAVAk41cGMKjwA+wyBy1ri-X3s+=s...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Dean here is a great source for stuff like that. > Cheap too. > > http://www.kitsandparts.com/toroids.php > > 73, Andy N2NT > > > On Fri, May 17, 2013 at 11:06 AM, <[email protected]> wrote: > >> >> >> >> >> HI All: >> >> >> >> I am looking for a source(s ) for mix 31 ferrites. Especially in the >> larger sizes, like the FT 240. I have tried the usual suspects . Amidon, >> Digikey, Mouser, Lodestar Pacific, to no avail. >> >> >> >> Any leads will be appreciated, either on or off the list. >> >> >> >> 73 to all >> >> >> >> Dean W5PJR >> >> Tijeras, NM >> All good topband ops know how to put up a beverage at night. >> _________________ >> Topband Reflector > > > ------------------------------ > > Message: 11 > Date: Fri, 17 May 2013 15:24:31 +0000 > From: "Shoppa, Tim" <[email protected]> > To: "'[email protected]'" <[email protected]>, "'[email protected]'" > <[email protected]> > Subject: Re: Topband: RFI ferrites > Message-ID: > <303A17BD5F8FA34DA45EEC245271AC0B7438FA8C@JGEX2K10MBX2.wmata.local> > Content-Type: text/plain; charset="iso-8859-1" > > Fair-Rite 2631803802 is the Amidon FT-240-31. Available at Mouser, Newark, > Arrow, and other places. > > I have a personal cross-ref between some Amidon and Fair-rite numbers. Not > sure if I'd get in trouble for publishing it. > > I like to use a white paint marker to put numbers on big cores as I unpack > them :-) > > Tim N3QE > > ----- Original Message ----- > From: [email protected] [mailto:[email protected]] > Sent: Friday, May 17, 2013 11:06 AM > To: [email protected] <[email protected]> > Subject: Topband: RFI ferrites > > > > > > HI All: > > > > I am looking for a source(s ) for mix 31 ferrites. Especially in the > larger sizes, like the FT 240. I have tried the usual suspects . Amidon, > Digikey, Mouser, Lodestar Pacific, to no avail. > > > > Any leads will be appreciated, either on or off the list. > > > > 73 to all > > > > Dean? W5PJR > > Tijeras, NM > All good topband ops know how to put up a beverage at night. > _________________ > Topband Reflector > > ------------------------------ > > Message: 12 > Date: Fri, 17 May 2013 11:30:03 -0400 > From: N1BUG <[email protected]> > To: [email protected] > Cc: [email protected] > Subject: Re: Topband: RFI ferrites > Message-ID: <[email protected]> > Content-Type: text/plain; charset=UTF-8; format=flowed > > Hi Dean, > > Did you search for the right part number? Mouser indicates 748 of > the 2.4" 31 mix toroids in stock at $6.94 each. That is where I get > mine from. The Fair-Rite part number is 2631803802. > > 73, > Paul N1BUG > > > ------------------------------ > > Message: 13 > Date: Fri, 17 May 2013 08:30:37 -0700 > From: Richard Zalewski <[email protected]> > To: Andy Blank <[email protected]> > Cc: [email protected], [email protected] > Subject: Re: Topband: RFI ferrites > Message-ID: > <CACVQm3m0y7Qt2TLbpP0sV-M=2g+cg850j3ncwjg2qm0tnwn...@mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > I have 4 large ones that are brand new that I never used. 1 3/8 ID 2 3/8 > od 7/16 thick. Got these from Amidon. > > On Fri, May 17, 2013 at 8:21 AM, Andy Blank <[email protected]> wrote: > >> Dean here is a great source for stuff like that. >> Cheap too. >> >> http://www.kitsandparts.com/toroids.php >> >> 73, Andy N2NT >> >> >> On Fri, May 17, 2013 at 11:06 AM, <[email protected]> wrote: >> >> > >> > >> > >> > >> > HI All: >> > >> > >> > >> > I am looking for a source(s ) for mix 31 ferrites. Especially in the >> > larger sizes, like the FT 240. I have tried the usual suspects . >> > Amidon, >> > Digikey, Mouser, Lodestar Pacific, to no avail. >> > >> > >> > >> > Any leads will be appreciated, either on or off the list. >> > >> > >> > >> > 73 to all >> > >> > >> > >> > Dean W5PJR >> > >> > Tijeras, NM >> > All good topband ops know how to put up a beverage at night. >> > _________________ >> > Topband Reflector >> All good topband ops know how to put up a beverage at night. >> _________________ >> Topband Reflector >> > > > > -- > Tnx es 73 > Richard W7ZR > www.w7zr.com > > *Be joyful in hope, patient in affliction, faithful in prayer* > > > ------------------------------ > > Message: 14 > Date: Fri, 17 May 2013 11:41:57 -0400 > From: "Charlie Cunningham" <[email protected]> > To: <[email protected]>, <[email protected]> > Cc: [email protected] > Subject: Re: Topband: RFI ferrites > Message-ID: <[email protected]> > Content-Type: text/plain; charset="utf-8" > > Contact Lynne Frye at Kreger Components, Inc. Salem, VA. > > [email protected] > > They are a national distributor for Fair-Rite Products: I have used a LOT > of their products over the years in my work, and a few (from the Designer > Kits) in my ham radio balun, binocular transformers, baluns and RFI > suppression work! Excellent supplier and excellent products!! I'll be > really surprised if you can't find exactly what you need!! They DO have > larger sizes that work with RG-213 etc.. You can tell Lynne that I sent > you! (Don't have her phone number handy at the moment) > > See also their website, catalog and product line at > www.kregercomponents.com. Lynne can also point you to other distributors > for Fair-Rite products. Feel sure that you won't be disappointed! > > Good luck and best regards! > > Charlie Cunningham, K4OTV > Charles Cunningham, Jr. PE > > -----Original Message----- > From: Topband [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Friday, May 17, 2013 11:06 AM > To: [email protected] > Subject: Topband: RFI ferrites > > > > > > HI All: > > > > I am looking for a source(s ) for mix 31 ferrites. Especially in the > larger sizes, like the FT 240. I have tried the usual suspects . Amidon, > Digikey, Mouser, Lodestar Pacific, to no avail. > > > > Any leads will be appreciated, either on or off the list. > > > > 73 to all > > > > Dean W5PJR > > Tijeras, NM > All good topband ops know how to put up a beverage at night. > _________________ > Topband Reflector > > > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > Topband mailing list > [email protected] > http://lists.contesting.com/mailman/listinfo/topband > > > ------------------------------ > > End of Topband Digest, Vol 125, Issue 17 > **************************************** > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2013.0.3336 / Virus Database: 3162/6331 - Release Date: 05/17/13 > All good topband ops know how to put up a beverage at night. _________________ Topband Reflector All good topband ops know how to put up a beverage at night. _________________ Topband Reflector
