Towertalk
[Top] [All Lists]

Re: [TowerTalk] TowerTalk Digest, Vol 154, Issue 26

To: towertalk@contesting.com
Subject: Re: [TowerTalk] TowerTalk Digest, Vol 154, Issue 26
From: K2CB <k2cb@comcast.net>
Date: Wed, 14 Oct 2015 23:30:17 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Actually, I am about 60ft higher in elevation.  I am at 100ft asl, he is at 
40ft asl.  I'm on a small hill right off the coast, and the elevation drops off 
towards EU. I can almost see the ocean from the top of the tower. He is a few 
miles further in from the coast.  Thus I suspect the coupling of the inverted 
V's may be a factor.  I think I am going to drop the dipole legs the next time 
we meet up on 40m and see how things compare then. 

Eric
K2CB 


------------------------------------
The difference between a two and three element yagi is only a couple
dB.  If your buddy has a slightly better ground elevation (think HFTA)
in some directions, he will most likely make up a dB or two very
easily.


73,

  ... Joe, W4TV




> On Oct 14, 2015, at 11:20 PM, towertalk-request@contesting.com wrote:
> 
> Send TowerTalk mailing list submissions to
>    towertalk@contesting.com
> 
> To subscribe or unsubscribe via the World Wide Web, visit
>    http://lists.contesting.com/mailman/listinfo/towertalk
> or, via email, send a message with subject or body 'help' to
>    towertalk-request@contesting.com
> 
> You can reach the person managing the list at
>    towertalk-owner@contesting.com
> 
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of TowerTalk digest..."
> 
> 
> Today's Topics:
> 
>   1. Re: SteppIR DB36/42 80m option (Joe Subich, W4TV)
>   2. Re: TowerTalk Digest, Vol 154, Issue 25 (K2CB)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Wed, 14 Oct 2015 22:20:58 -0400
> From: "Joe Subich, W4TV" <lists@subich.com>
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] SteppIR DB36/42 80m option
> Message-ID: <561F0D8A.4030301@subich.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
> 
> 
>> On 10/14/2015 9:20 PM, K2CB wrote:
>> 
>> While we are discussing 80m antennas, can someone shed some light on
>> the radiation pattern of the SteppIR dipole option for the larger
>> DB36 and DB42 models?
> 
> The SteppIR is a shortened dipole (end loaded).  Radiation pattern
> would typically be within 0.5 to 1 dB of a "flat" full size dipole
> at the same height.
> 
>> Is the maximum radiation towards the front and back of the antenna
>> elements, or off the left and right sides of the boom?
> 
> Maximum radiation is broadside to the boom - at right angles to the
> beam on the other bands.
> 
>> I also have legs for 160m fed off the same feed point, which sit/hang
>> 2 or 3 feet above the 80m legs.  They are tied to the same end posts
>> as the 80m legs. I just leave the ropes for the 80 m legs a little
>> bit looser so they sag down below the 160 m legs by a few feet on the
>> way down from the tower.
> 
> The 80m legs are redundant and most certainly couple with the SteppIR
> when the SteppIR boom is parallel to the inverted V.  I would get rid
> of the 80m legs and make the inverted V a 160 meter only antenna or
> consider shunt feeding the tower for 160 and get rid of the wire all
> together.
> 
>> As a non-scientific comparison, my buddy (N2II) up the road a few
>> miles with only a two element 24ft boom linear loaded 40m yagi at the
>> same 89ft height seems to do equally as good, if not slightly better,
>> as I do with the three element 36ft boom SteppIR on 40 m.
> 
> The difference between a two and three element yagi is only a couple
> dB.  If your buddy has a slightly better ground elevation (think HFTA)
> in some directions, he will most likely make up a dB or two very
> easily.
> 
> 
> 73,
> 
>   ... Joe, W4TV
> 
> 
>> On 10/14/2015 9:20 PM, K2CB wrote:
>> 
>> While we are discussing 80m antennas, can someone shed some light on
>> the radiation pattern of the SteppIR dipole option for the larger
>> DB36 and DB42 models?
>> 
>> Is the maximum radiation towards the front and back of the antenna
>> elements, or off the left and right sides of the boom?
>> 
>> Also, what would you consider this design? Some sort of "H" dipole?
>> 
>> Anyone know of any good write ups on this sort of "H" antenna design
>> (the 80m portion, obviously) on the web?
>> 
>> Finally, has anyone compared this to an 80m inverted V at similar
>> heights?
>> 
>> I have the DB36 with the dipole option at 91 ft, and an inverted V
>> 80m dipole with the feed point/ apex just below it at 89 feet. The
>> end of the two legs of the inverted v are at approximately 45ft above
>> ground.
>> 
>> I also have legs for 160m fed off the same feed point, which sit/hang
>> 2 or 3 feet above the 80m legs.  They are tied to the same end posts
>> as the 80m legs. I just leave the ropes for the 80 m legs a little
>> bit looser so they sag down below the 160 m legs by a few feet on the
>> way down from the tower.  Unfortunately I have no trees on the
>> property, so the only tie offs are two posts in the far corners of my
>> property.
>> 
>> I am sure there is some severe interaction, so it really is hard for
>> me to tell which one works better sometimes.
>> 
>> My experience with both seems to show that the StrppIR "H" dipole is
>> a little better for the long haul stuff into Europe, while the
>> inverted V is much better (by 10db) for the close in (200-300 mile)
>> and rag chew type contacts on 80 m.
>> 
>> On a related note, I believe I am having some noticeable interaction
>> with these inverted V's when I have the SteppIR on 40 m. As a
>> non-scientific comparison, my buddy (N2II) up the road a few miles
>> with only a two element 24ft boom linear loaded 40m yagi at the same
>> 89ft height seems to do equally as good, if not slightly better, as I
>> do with the three element 36ft boom SteppIR on 40 m.
>> 
>> I have no experience with modeling, unfortunately. My area of
>> expertise in the hobby is radio and amplifier repair. FWIW, I am
>> willing to trade repair services for modeling services if anyone is
>> ever interested in modeling my antenna set up.
>> 
>> Eric K2CB
>> 
>> _______________________________________________
>> 
>> 
>> 
>> _______________________________________________ TowerTalk mailing
>> list TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Wed, 14 Oct 2015 23:20:14 -0400
> From: K2CB <k2cb@comcast.net>
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] TowerTalk Digest, Vol 154, Issue 25
> Message-ID: <7F0F89EF-9DBE-4C4B-BCB8-BE7EEF41A45E@comcast.net>
> Content-Type: text/plain;    charset=us-ascii
> 
> Yes. I did not see anything of technical significance re the dipole option 
> the last time I checked. 
> 
> Did you find something there worth referencing here?
> 
> -------------------------------
> 
> Did you look on the StepIR website?
> 
> 73, Jim K9YC
> 
> 
> 
> 
>> On Oct 14, 2015, at 10:09 PM, towertalk-request@contesting.com wrote:
>> 
>> Send TowerTalk mailing list submissions to
>>   towertalk@contesting.com
>> 
>> To subscribe or unsubscribe via the World Wide Web, visit
>>   http://lists.contesting.com/mailman/listinfo/towertalk
>> or, via email, send a message with subject or body 'help' to
>>   towertalk-request@contesting.com
>> 
>> You can reach the person managing the list at
>>   towertalk-owner@contesting.com
>> 
>> When replying, please edit your Subject line so it is more specific
>> than "Re: Contents of TowerTalk digest..."
>> 
>> 
>> Today's Topics:
>> 
>>  1. Re: DX Engineering (Thomas Noel)
>>  2. Re: DX Engineering (EZ Rhino)
>>  3. Re: DX Engineering (john@kk9a.com)
>>  4. SteppIR DB36/42 80m option (K2CB)
>>  5. Re: SteppIR DB36/42 80m option (Jim Brown)
>> 
>> 
>> ----------------------------------------------------------------------
>> 
>> Message: 1
>> Date: Wed, 14 Oct 2015 16:24:53 -0700
>> From: Thomas Noel <tnoel@mac.com>
>> To: Andre VanWyk <kr5dx@yahoo.com>
>> Cc: Fred Keen <fredkeen@ymail.com>, Keith Dutson
>>   <kdutson@sbcglobal.net>,    TowerTalk <TowerTalk@contesting.com>
>> Subject: Re: [TowerTalk] DX Engineering
>> Message-ID: <06A31DE3-E265-44CB-A06E-9C32B8954995@mac.com>
>> Content-Type: text/plain;    charset=utf-8
>> 
>> Holy Crap! This is a zombie thread from early September. I long since 
>> declared my undying love for all things DXE related.
>> 
>> From Sept 8:
>> 
>> "To all:
>> 
>> I was contacted by the owner, Tim Duffy who promised a satisfactory 
>> resolution. The task was passed to Tom Parkinson, who has conclusively 
>> proven, in both carefully measured prose and elaborate pictures, that I am 
>> an incompetent idiot. We still do not know just what caused my problem, and 
>> I am 3000 miles from home and unable to provide any more info to the 
>> diligent team looking for answers.
>> 
>> I could not ask for more satisfactory service or attention to my needs."
>> 
>> Thomas W Noel
>> KF7RSF
>> 
>>> On Oct 14, 2015, at 3:00 PM, Andre VanWyk via TowerTalk 
>>> <towertalk@contesting.com> wrote:
>>> 
>>> I echo Keith and Fred's comments. DXE has been excellent in service, 
>>> product quality and shipping time. Everyone makes mistakes, but I find it 
>>> hard to believe that someone at DXE will refuse to resolve this for you. 
>>> There must be more to this story.
>>> They have a return policy which is on par with other vendors, so if you 
>>> don?t like the connectors, I am sure they will gladly refund you if you 
>>> return the connectors. I think this is a discussion that should take place 
>>> on the phone between you and DXE, not here on the reflector.
>>> 73
>>> NJ0F
>>> 
>>> 
>>> -----Original Message----- From: Fred Keen
>>> Sent: Wednesday, October 14, 2015 1:55 PM
>>> To: Keith Dutson ; 'TowerTalk'
>>> Subject: Re: [TowerTalk] DX Engineering
>>> 
>>> My DX Engineering experience has been 100% positive, even when I order the 
>>> wrong item  :-(
>>> FredKC5YN
>>> 
>>> 
>>> 
>>>  On Sunday, September 6, 2015 12:53 AM, Keith Dutson 
>>> <kdutson@sbcglobal.net> wrote:
>>> 
>>> 
>>> I buy from a lot of vendors.
>>> DX Engineering has earned more of my business in the past couple of years 
>>> due mainly to the addition of quality products that I used to buy from 
>>> other sources.
>>> I also have noticed a big improvement in their service, especially in 
>>> follow-up.
>>> IMNSHO, I believe complainers are simply grumbling, maybe because they have 
>>> nothing constructive to talk about. <grin>
>>> 
>>> 73, Keith NM5G
>>> 
>>> -----Original Message-----
>>> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of 
>>> Matthew King - KK4CPS
>>> Sent: Saturday, September 05, 2015 11:58 PM
>>> To: TowerTalk <TowerTalk@contesting.com>
>>> Subject: Re: [TowerTalk] DX Engineering
>>> 
>>> Thomas - as the former owner of a small business, I always wondered if 
>>> people were giving me a second chance if I made a mistake. I can tell you 
>>> this - if I was made aware of a mistake, it was fixed, handled, and made 
>>> right on the spot. I'm hoping that you didn't decide to withhold future 
>>> business from DX Engineering and speak negatively of them in a public forum 
>>> without at least calling a manager and making them aware of the situation 
>>> and how things transpired in your first attempt to rectify the situation.
>>> 
>>> Yours is the first "they were rude" story that I've ever heard about DX 
>>> Engineering. I have a hunch that we've not heard the other side of the 
>>> conversation. You'd already experienced the excellent service from them 
>>> before, so I'd like to think if you gave them a second chance in proper 
>>> fashion through proper channels that you'd see more of the great service 
>>> that you'd grown accustomed to from prior dealings.
>>> 
>>> Give them a call and get a manager (or the owner, Tim Duffy) on the phone 
>>> and let them make it right for you, then come back and report that.
>>> 
>>> To those that say they are overpriced on some things. No argument here, but 
>>> I did recently hear that they price match, so maybe that'll help!
>>> 
>>> 73
>>> 
>>> Matt
>>> KK4CPS
>>> 
>>>> On Sat, Sep 5, 2015 at 3:58 PM, Thomas Noel <tnoel@mac.com> wrote:
>>>> 
>>>> I shared the effusive praise opinion for DXE until a recent
>>>> transaction. I purchased RG8X cable and ordered Crimp/Crimp connectors
>>>> to go with. The connectors supplied were for old style solid conductor
>>>> 8X cable, and their DXE brand coax with a stranded center conductor
>>>> would not fit into the center crimp. When contacted, their only
>>>> response was ?So, what do you expect us to do about it?? They would
>>>> offer no solution, and were very rude on the phone.
>>>> 
>>>> I will not do business with them again.
>>>> 
>>>> Thomas W Noel
>>>> KF7RSF
>>>> 
>>>>> On Sep 5, 2015, at 3:36 PM, w1yw via TowerTalk
>>>>> <towertalk@contesting.com>
>>>> wrote:
>>>>> 
>>>>> A first rate operation, always helpful, always fast and friendly.
>>>>> Great
>>>> prices. Absolutely no complaints.
>>>>> 
>>>>> 73
>>>>> Chip W1YW
>>>>> 
>>>>> Sent from my iPad
>>>>> _______________________________________________
>>>>> 
>>>>> 
>>>>> 
>>>>> _______________________________________________
>>>>> TowerTalk mailing list
>>>>> TowerTalk@contesting.com
>>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>> 
>>>> _______________________________________________
>>>> 
>>>> 
>>>> 
>>>> _______________________________________________
>>>> TowerTalk mailing list
>>>> TowerTalk@contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>> _______________________________________________
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>> 
>>> _______________________________________________
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk 
>>> _______________________________________________
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>> 
>> 
>> 
>> ------------------------------
>> 
>> Message: 2
>> Date: Wed, 14 Oct 2015 17:39:28 -0600
>> From: EZ Rhino <EZRhino@fastmovers.biz>
>> To: Towertalk Reflector <towertalk@contesting.com>
>> Subject: Re: [TowerTalk] DX Engineering
>> Message-ID: <38F3B0AB-8835-4395-B496-E504D443F043@fastmovers.biz>
>> Content-Type: text/plain; charset=windows-1252
>> 
>> Yeah, it came back from the dead.  Can we please re-bury it?  No more 
>> responses!  Moving on......
>> 
>> Chris
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> On Oct 14, 2015, at 17:24 , Thomas Noel wrote:
>> 
>> Holy Crap! This is a zombie thread from early September. I long since 
>> declared my undying love for all things DXE related.
>> 
>> From Sept 8:
>> 
>> "To all:
>> 
>> I was contacted by the owner, Tim Duffy who promised a satisfactory 
>> resolution. The task was passed to Tom Parkinson, who has conclusively 
>> proven, in both carefully measured prose and elaborate pictures, that I am 
>> an incompetent idiot. We still do not know just what caused my problem, and 
>> I am 3000 miles from home and unable to provide any more info to the 
>> diligent team looking for answers.
>> 
>> I could not ask for more satisfactory service or attention to my needs."
>> 
>> Thomas W Noel
>> KF7RSF
>> 
>>> On Oct 14, 2015, at 3:00 PM, Andre VanWyk via TowerTalk 
>>> <towertalk@contesting.com> wrote:
>>> 
>>> I echo Keith and Fred's comments. DXE has been excellent in service, 
>>> product quality and shipping time. Everyone makes mistakes, but I find it 
>>> hard to believe that someone at DXE will refuse to resolve this for you. 
>>> There must be more to this story.
>>> They have a return policy which is on par with other vendors, so if you 
>>> don?t like the connectors, I am sure they will gladly refund you if you 
>>> return the connectors. I think this is a discussion that should take place 
>>> on the phone between you and DXE, not here on the reflector.
>>> 73
>>> NJ0F
>>> 
>>> 
>>> -----Original Message----- From: Fred Keen
>>> Sent: Wednesday, October 14, 2015 1:55 PM
>>> To: Keith Dutson ; 'TowerTalk'
>>> Subject: Re: [TowerTalk] DX Engineering
>>> 
>>> My DX Engineering experience has been 100% positive, even when I order the 
>>> wrong item  :-(
>>> FredKC5YN
>>> 
>>> 
>>> 
>>> On Sunday, September 6, 2015 12:53 AM, Keith Dutson <kdutson@sbcglobal.net> 
>>> wrote:
>>> 
>>> 
>>> I buy from a lot of vendors.
>>> DX Engineering has earned more of my business in the past couple of years 
>>> due mainly to the addition of quality products that I used to buy from 
>>> other sources.
>>> I also have noticed a big improvement in their service, especially in 
>>> follow-up.
>>> IMNSHO, I believe complainers are simply grumbling, maybe because they have 
>>> nothing constructive to talk about. <grin>
>>> 
>>> 73, Keith NM5G
>>> 
>>> -----Original Message-----
>>> From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of 
>>> Matthew King - KK4CPS
>>> Sent: Saturday, September 05, 2015 11:58 PM
>>> To: TowerTalk <TowerTalk@contesting.com>
>>> Subject: Re: [TowerTalk] DX Engineering
>>> 
>>> Thomas - as the former owner of a small business, I always wondered if 
>>> people were giving me a second chance if I made a mistake. I can tell you 
>>> this - if I was made aware of a mistake, it was fixed, handled, and made 
>>> right on the spot. I'm hoping that you didn't decide to withhold future 
>>> business from DX Engineering and speak negatively of them in a public forum 
>>> without at least calling a manager and making them aware of the situation 
>>> and how things transpired in your first attempt to rectify the situation.
>>> 
>>> Yours is the first "they were rude" story that I've ever heard about DX 
>>> Engineering. I have a hunch that we've not heard the other side of the 
>>> conversation. You'd already experienced the excellent service from them 
>>> before, so I'd like to think if you gave them a second chance in proper 
>>> fashion through proper channels that you'd see more of the great service 
>>> that you'd grown accustomed to from prior dealings.
>>> 
>>> Give them a call and get a manager (or the owner, Tim Duffy) on the phone 
>>> and let them make it right for you, then come back and report that.
>>> 
>>> To those that say they are overpriced on some things. No argument here, but 
>>> I did recently hear that they price match, so maybe that'll help!
>>> 
>>> 73
>>> 
>>> Matt
>>> KK4CPS
>>> 
>>>> On Sat, Sep 5, 2015 at 3:58 PM, Thomas Noel <tnoel@mac.com> wrote:
>>>> 
>>>> I shared the effusive praise opinion for DXE until a recent
>>>> transaction. I purchased RG8X cable and ordered Crimp/Crimp connectors
>>>> to go with. The connectors supplied were for old style solid conductor
>>>> 8X cable, and their DXE brand coax with a stranded center conductor
>>>> would not fit into the center crimp. When contacted, their only
>>>> response was ?So, what do you expect us to do about it?? They would
>>>> offer no solution, and were very rude on the phone.
>>>> 
>>>> I will not do business with them again.
>>>> 
>>>> Thomas W Noel
>>>> KF7RSF
>>>> 
>>>>> On Sep 5, 2015, at 3:36 PM, w1yw via TowerTalk
>>>>> <towertalk@contesting.com>
>>>> wrote:
>>>>> 
>>>>> A first rate operation, always helpful, always fast and friendly.
>>>>> Great
>>>> prices. Absolutely no complaints.
>>>>> 
>>>>> 73
>>>>> Chip W1YW
>>>>> 
>>>>> Sent from my iPad
>>>>> _______________________________________________
>>>>> 
>>>>> 
>>>>> 
>>>>> _______________________________________________
>>>>> TowerTalk mailing list
>>>>> TowerTalk@contesting.com
>>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>> 
>>>> _______________________________________________
>>>> 
>>>> 
>>>> 
>>>> _______________________________________________
>>>> TowerTalk mailing list
>>>> TowerTalk@contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>> _______________________________________________
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>> 
>>> _______________________________________________
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk 
>>> _______________________________________________
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> TowerTalk mailing list
>>> TowerTalk@contesting.com
>>> http://lists.contesting.com/mailman/listinfo/towertalk
>> 
>> _______________________________________________
>> 
>> 
>> 
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>> 
>> 
>> 
>> ------------------------------
>> 
>> Message: 3
>> Date: Wed, 14 Oct 2015 21:06:37 -0400
>> From: <john@kk9a.com>
>> To: <towertalk@contesting.com>
>> Subject: Re: [TowerTalk] DX Engineering
>> Message-ID: <000001d106e5$c1313500$43939f00$@com>
>> Content-Type: text/plain;    charset="us-ascii"
>> 
>> It must be a slow day.  There were only a few posts regarding how to make an
>> inefficient Sweepstakes antenna and no tower wench or true north questions.
>> 
>> It is good to hear that DXE handled your issue satisfactorily. I had no
>> doubts that they would take good care of you. When you got home, where you
>> able to use the connectors after receiving more installation information?  
>> 
>> John KK9A
>> 
>> 
>> To:    Andre VanWyk <kr5dx@yahoo.com>
>> Subject:    Re: [TowerTalk] DX Engineering
>> From:    Thomas Noel <tnoel@mac.com>
>> Date:    Wed, 14 Oct 2015 16:24:53 -0700
>> List-post:    <towertalk@contesting.com">mailto:towertalk@contesting.com>
>> Holy Crap! This is a zombie thread from early September. I long since
>> declared 
>> my undying love for all things DXE related.
>> 
>>> From Sept 8:
>> 
>> "To all:
>> 
>> I was contacted by the owner, Tim Duffy who promised a satisfactory
>> resolution. 
>> The task was passed to Tom Parkinson, who has conclusively proven, in both 
>> carefully measured prose and elaborate pictures, that I am an incompetent 
>> idiot. We still do not know just what caused my problem, and I am 3000 miles
>> 
>> from home and unable to provide any more info to the diligent team looking
>> for 
>> answers.
>> 
>> I could not ask for more satisfactory service or attention to my needs."
>> 
>> Thomas W Noel
>> KF7RSF
>> 
>> 
>> 
>> ------------------------------
>> 
>> Message: 4
>> Date: Wed, 14 Oct 2015 21:20:12 -0400
>> From: K2CB <k2cb@comcast.net>
>> To: TowerTalk@contesting.com
>> Subject: [TowerTalk] SteppIR DB36/42 80m option
>> Message-ID: <AF99256B-647B-4578-84B5-FF079AFA9E8F@comcast.net>
>> Content-Type: text/plain;    charset=us-ascii
>> 
>> 
>> While we are discussing 80m antennas, can someone shed some light on the 
>> radiation pattern of the SteppIR dipole option for the larger DB36 and DB42 
>> models?
>> 
>> Is the maximum radiation towards the front and back of the antenna elements, 
>> or off the left and right sides of the boom? 
>> 
>> Also, what would you consider this design? Some sort of "H" dipole? 
>> 
>> Anyone know of any good write ups on this sort of "H" antenna design (the 
>> 80m portion, obviously) on the web?
>> 
>> Finally, has anyone compared this to an 80m inverted V at similar heights?
>> 
>> I have the DB36 with the dipole option at 91 ft, and an inverted V 80m 
>> dipole with the feed point/ apex just below it at 89 feet. The end of the 
>> two legs of the inverted v are at approximately 45ft above ground. 
>> 
>> I also have legs for 160m fed off the same feed point, which sit/hang 2 or 3 
>> feet above the 80m legs.  They are tied to the same end posts as the 80m 
>> legs. I just leave the ropes for the 80 m legs a little bit looser so they 
>> sag down below the 160 m legs by a few feet on the way down from the tower.  
>> Unfortunately I have no trees on the property, so the only tie offs are two 
>> posts in the far corners of my property.
>> 
>> I am sure there is some severe interaction, so it really is hard for me to 
>> tell which one works better sometimes. 
>> 
>> My experience with both seems to show that the StrppIR "H" dipole is a 
>> little better for the long haul stuff into Europe, while the inverted V is 
>> much better (by 10db) for the close in (200-300 mile) and rag chew type 
>> contacts on 80 m.
>> 
>> On a related note, I believe I am having some noticeable interaction with 
>> these inverted V's when I have the SteppIR on 40 m. As a non-scientific 
>> comparison, my buddy (N2II) up the road a few miles with only a two element 
>> 24ft boom linear loaded 40m yagi at the same 89ft height seems to do equally 
>> as good, if not slightly better, as I do with the three element 36ft boom 
>> SteppIR on 40 m.
>> 
>> I have no experience with modeling, unfortunately. My area of expertise in 
>> the hobby is radio and amplifier repair. FWIW, I am willing to trade repair 
>> services for modeling services if anyone is ever interested in modeling my 
>> antenna set up.
>> 
>> Eric
>> K2CB
>> 
>> 
>> 
>> ------------------------------
>> 
>> Message: 5
>> Date: Wed, 14 Oct 2015 19:09:04 -0700
>> From: Jim Brown <jim@audiosystemsgroup.com>
>> To: towertalk@contesting.com
>> Subject: Re: [TowerTalk] SteppIR DB36/42 80m option
>> Message-ID: <561F0AC0.3080806@audiosystemsgroup.com>
>> Content-Type: text/plain; charset=windows-1252; format=flowed
>> 
>>> On Wed,10/14/2015 6:20 PM, K2CB wrote:
>>> Anyone know of any good write ups on this sort of "H" antenna design (the 
>>> 80m portion, obviously) on the web?
>> 
>> Did you look on the StepIR website?
>> 
>> 73, Jim K9YC
>> 
>> 
>> ------------------------------
>> 
>> Subject: Digest Footer
>> 
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>> 
>> 
>> ------------------------------
>> 
>> End of TowerTalk Digest, Vol 154, Issue 25
>> ******************************************
> 
> 
> ------------------------------
> 
> Subject: Digest Footer
> 
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
> 
> 
> ------------------------------
> 
> End of TowerTalk Digest, Vol 154, Issue 26
> ******************************************
_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>
  • Re: [TowerTalk] TowerTalk Digest, Vol 154, Issue 26, K2CB <=