If memory serves me correct the coil for 160 meters on the Hy Tower was at the
bottom of the vertical. A less efficient way to get on 160. A better way would
be to use an actual trap or a high reactance coil on top and extending it with
wire to resonate on 160.A similar method is used by Alpha Delta on their DX-A
Sloper. However on this antenna the resonance for 160 is provided from the
inductance of a tightly wound coil on a fiberglass(?) coil form. Basically one
leg is a 40 meter sloping quarter wave roughly 33 ft or so long, then the
"iso-res" coil and approximately 18 ft extender to be trimmed for the narrow
resonance on 160. An 80 meter elevated "iso res" might be kind of hefty.
Art., N2KA
Arthur Bernstein
n2ka@verizon.net
On Tuesday, July 23, 2024 at 12:00:33 PM EDT,
towertalk-request@contesting.com <towertalk-request@contesting.com> wrote:
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Today's Topics:
1. Re: Hygain 18-HT 160m Trap wanted (Jim Brown)
2. Re: Hygain 18-HT 160m Trap wanted (Jim W7RY)
3. Re: Hygain 18-HT 160m Trap wanted (Jack Brindle)
4. Re: Hygain 18-HT 160m Trap wanted (Joe Subich, W4TV)
5. Re: Hygain 18-HT 160m Trap wanted (n5xz@earthlink.net)
----------------------------------------------------------------------
Message: 1
Date: Mon, 22 Jul 2024 15:41:02 -0700
From: Jim Brown <jim@audiosystemsgroup.com>
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Hygain 18-HT 160m Trap wanted
Message-ID:
<efc29d3e-2f77-4269-a169-fb21825db73a@audiosystemsgroup.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
On 7/22/2024 1:47 PM, browndog2344@gmail.com wrote:
> I see that MFJ (current owner of HyGain) still has MK-160A's for sale (~$200).
Both the trap and the loading coils are pretty easy to build if we have
good data and/or construction details. Hopefully, someone can document
them well and share the data.
73, Jim K9YC
------------------------------
Message: 2
Date: Mon, 22 Jul 2024 20:25:54 -0500
From: Jim W7RY <jimw7ry@gmail.com>
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Hygain 18-HT 160m Trap wanted
Message-ID: <cd9cd2cd-c3d0-421c-ba75-371935c05dfd@gmail.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Nothing attached. Because you cant have attachments on this list.
Jim W7RY
On 7/22/2024 3:41 PM, browndog2344@gmail.com wrote:
> Allen,
>
> You are looking for a MK-160A. See attached file.
>
> 73
> Dale
> AF7WH
>
> -----Original Message-----
> From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of
> n5xz@earthlink.net
> Sent: Monday, July 22, 2024 12:37 PM
> To: 'Steve Colello' <colellos@earthlink.net>
> Cc: towertalk@contesting.com
> Subject: Re: [TowerTalk] Hygain 18-HT 160m Trap wanted
>
> Actually Steve, I may go that route, but there was also a 160m trap that
> would attach to the top of the tower to allow you to do an Inverted-L for
> 160m while still retaining the 80m use of the tower?
>
>
>
> Allen R. Brier N5XZ
>
> 1515 Windloch Lane
>
> Richmond, TX 77406
>
> 713-705-4801
>
>
>
> From: Steve Colello <colellos@earthlink.net>
> Sent: Monday, July 22, 2024 2:29 PM
> To: n5xz@earthlink.net
> Subject: RE: [TowerTalk] Hygain 18-HT 160m Trap wanted
>
>
>
> I have had a HyTower for years. I just replaced my 160 loading coil with one
> I built myself. I found one replacement for around $200 and figured I could
> do better. Give me until tomorrow and I will gather up some info for you.
>
>
>
> Steve
>
> KA2KON
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for Windows
>
>
>
> From: n5xz@earthlink.net <mailto:n5xz@earthlink.net>
> Sent: Monday, July 22, 2024 2:57 PM
> To: towertalk@contesting.com <mailto:towertalk@contesting.com>
> Subject: [TowerTalk] Hygain 18-HT 160m Trap wanted
>
>
>
> Anyone have a new or used 160m trap for sale that is used on the 18-HT? (I
>
> don't remember the part number...).
>
>
>
> Allen R. Brier N5XZ
>
> 1515 Windloch Lane
>
> Richmond, TX 77406
>
> 713-705-4801
>
>
>
>
>
--
Thanks and 73, Jim W7RY
------------------------------
Message: 3
Date: Mon, 22 Jul 2024 20:26:14 -0500
From: Jack Brindle <jackbrindle@me.com>
To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: Re: [TowerTalk] Hygain 18-HT 160m Trap wanted
Message-ID: <E31A55EF-34EA-4CCE-A64C-92C9C37FB5B5@me.com>
Content-Type: text/plain; charset=utf-8
I recently tried to by a HyGain antenna from MFJ. It was listed oil stock, but
I got tired of waiting after a week. I then bought it from DX Engineering at a
lower cost. MFJ?s shipping charges are exorbitant. When the antenna arrived
with a missing piece, calling MFJ produced nothing - they didn?t answer the
phone. The DXEngineering folks fixed that quickly. Great customer service.
Tim has a first-rate company with super people.
I do hope someone picks up the HyGain and Cushcraft lines. They deserve good
treatment along with some updating.
73,
Jack, W6FB
> On Jul 22, 2024, at 3:50?PM, Steven Katz <stevek@jmr.com> wrote:
>
> DX Engineering lists them as "in stock" for shipment "today."
>
> -----Original Message-----
> From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of
> n5xz@earthlink.net
> Sent: Monday, July 22, 2024 3:48 PM
> To: browndog2344@gmail.com; 'Steve Colello' <colellos@earthlink.net>
> Cc: towertalk@contesting.com
> Subject: Re: [TowerTalk] Hygain 18-HT 160m Trap wanted
>
> Yeah, that's it!
>
> Allen R. Brier N5XZ
> 1515 Windloch Lane
> Richmond, TX 77406
> 713-705-4801
>
> -----Original Message-----
> From: browndog2344@gmail.com <browndog2344@gmail.com>
> Sent: Monday, July 22, 2024 3:41 PM
> To: n5xz@earthlink.net; 'Steve Colello' <colellos@earthlink.net>
> Cc: towertalk@contesting.com
> Subject: RE: [TowerTalk] Hygain 18-HT 160m Trap wanted
>
> Allen,
>
> You are looking for a MK-160A. See attached file.
>
> 73
> Dale
> AF7WH
>
> -----Original Message-----
> From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of
> n5xz@earthlink.net
> Sent: Monday, July 22, 2024 12:37 PM
> To: 'Steve Colello' <colellos@earthlink.net>
> Cc: towertalk@contesting.com
> Subject: Re: [TowerTalk] Hygain 18-HT 160m Trap wanted
>
> Actually Steve, I may go that route, but there was also a 160m trap that
> would attach to the top of the tower to allow you to do an Inverted-L for
> 160m while still retaining the 80m use of the tower?
>
>
>
> Allen R. Brier N5XZ
>
> 1515 Windloch Lane
>
> Richmond, TX 77406
>
> 713-705-4801
>
>
>
> From: Steve Colello <colellos@earthlink.net>
> Sent: Monday, July 22, 2024 2:29 PM
> To: n5xz@earthlink.net
> Subject: RE: [TowerTalk] Hygain 18-HT 160m Trap wanted
>
>
>
> I have had a HyTower for years. I just replaced my 160 loading coil with one
> I built myself. I found one replacement for around $200 and figured I could
> do better. Give me until tomorrow and I will gather up some info for you.
>
>
>
> Steve
>
> KA2KON
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for Windows
>
>
>
> From: n5xz@earthlink.net <mailto:n5xz@earthlink.net>
> Sent: Monday, July 22, 2024 2:57 PM
> To: towertalk@contesting.com <mailto:towertalk@contesting.com>
> Subject: [TowerTalk] Hygain 18-HT 160m Trap wanted
>
>
>
> Anyone have a new or used 160m trap for sale that is used on the 18-HT? (I
>
> don't remember the part number...).
>
>
>
> Allen R. Brier N5XZ
>
> 1515 Windloch Lane
>
> Richmond, TX 77406
>
> 713-705-4801
>
>
>
>
>
> --
>
> This email has been checked for viruses by AVG antivirus software.
>
> www.avg.com <http://www.avg.com>
>
>
>
> _______________________________________________
>
>
>
>
>
>
>
> _______________________________________________
>
> TowerTalk mailing list
>
> TowerTalk@contesting.com <mailto:TowerTalk@contesting.com>
>
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
>
> _______________________________________________
>
>
>
> _______________________________________________
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> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> _______________________________________________
>
>
>
> _______________________________________________
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------------------------------
Message: 4
Date: Mon, 22 Jul 2024 21:37:54 -0400
From: "Joe Subich, W4TV" <lists@subich.com>
To: "[TowerTalk]" <towertalk@contesting.com>
Subject: Re: [TowerTalk] Hygain 18-HT 160m Trap wanted
Message-ID: <e9e95dd0-c7c0-4977-85d6-cf7a23b28e2a@subich.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
On 7/22/2024 6:41 PM, Jim Brown wrote:
> Both the trap and the loading coils are pretty easy to build if we
> have good data and/or construction details.
The trap is nothing special. Since it connects to the tower at the
top, it is likely resonant on 40 meters - in fact the parts list
in the MK-160A manual online shows: p/n 977234 Trap, 40 meter
This is the same 40 M trap used in both the Hy-Gain DP-5BDQ
(80/40/20/15/10 trapped dipole) and DP-2BDQ (80/40 trapped dipole).
The loading coil is also nothing special ... 4 turns per inch, 3" ID x
10" long (per the LC-160Q Product Manual online). Originally, it was
B & W coil stock - I presume it was being made by MFJ recently.
Both approaches have significant problems:
The trap results in an inverted L that is only 25 high - very low
efficiency. The loading coil (at high power) results in high
voltage across the insulator at the bottom of the "whip" which
is a weak point (and will melt down!).
73,
... Joe, W4TV
On 7/22/2024 6:41 PM, Jim Brown wrote:
> On 7/22/2024 1:47 PM, browndog2344@gmail.com wrote:
>> I see that MFJ (current owner of HyGain) still has MK-160A's for sale
>> (~$200).
>
> Both the trap and the loading coils are pretty easy to build if we have
> good data and/or construction details. Hopefully, someone can document
> them well and share the data.
>
> 73, Jim K9YC
>
------------------------------
Message: 5
Date: Tue, 23 Jul 2024 10:32:33 -0500
From: <n5xz@earthlink.net>
To: "'Steven Katz'" <stevek@jmr.com>, <browndog2344@gmail.com>,
"'Steve Colello'" <colellos@earthlink.net>
Cc: <towertalk@contesting.com>
Subject: Re: [TowerTalk] Hygain 18-HT 160m Trap wanted
Message-ID: <059101dadd15$8b034530$a109cf90$@earthlink.net>
Content-Type: text/plain; charset="UTF-8"
Yeah, snagged the last one.
73,
Allen R. Brier N5XZ
1515 Windloch Lane
Richmond, TX 77406
713-705-4801
-----Original Message-----
From: Steven Katz <stevek@jmr.com>
Sent: Monday, July 22, 2024 3:51 PM
To: n5xz@earthlink.net; browndog2344@gmail.com; 'Steve Colello'
<colellos@earthlink.net>
Cc: towertalk@contesting.com
Subject: RE: [TowerTalk] Hygain 18-HT 160m Trap wanted
DX Engineering lists them as "in stock" for shipment "today."
-----Original Message-----
From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of
n5xz@earthlink.net
Sent: Monday, July 22, 2024 3:48 PM
To: browndog2344@gmail.com; 'Steve Colello' <colellos@earthlink.net>
Cc: towertalk@contesting.com
Subject: Re: [TowerTalk] Hygain 18-HT 160m Trap wanted
Yeah, that's it!
Allen R. Brier N5XZ
1515 Windloch Lane
Richmond, TX 77406
713-705-4801
-----Original Message-----
From: browndog2344@gmail.com <browndog2344@gmail.com>
Sent: Monday, July 22, 2024 3:41 PM
To: n5xz@earthlink.net; 'Steve Colello' <colellos@earthlink.net>
Cc: towertalk@contesting.com
Subject: RE: [TowerTalk] Hygain 18-HT 160m Trap wanted
Allen,
You are looking for a MK-160A. See attached file.
73
Dale
AF7WH
-----Original Message-----
From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of
n5xz@earthlink.net
Sent: Monday, July 22, 2024 12:37 PM
To: 'Steve Colello' <colellos@earthlink.net>
Cc: towertalk@contesting.com
Subject: Re: [TowerTalk] Hygain 18-HT 160m Trap wanted
Actually Steve, I may go that route, but there was also a 160m trap that would
attach to the top of the tower to allow you to do an Inverted-L for 160m while
still retaining the 80m use of the tower?
Allen R. Brier N5XZ
1515 Windloch Lane
Richmond, TX 77406
713-705-4801
From: Steve Colello <colellos@earthlink.net>
Sent: Monday, July 22, 2024 2:29 PM
To: n5xz@earthlink.net
Subject: RE: [TowerTalk] Hygain 18-HT 160m Trap wanted
I have had a HyTower for years. I just replaced my 160 loading coil with one I
built myself. I found one replacement for around $200 and figured I could do
better. Give me until tomorrow and I will gather up some info for you.
Steve
KA2KON
Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for Windows
From: n5xz@earthlink.net <mailto:n5xz@earthlink.net>
Sent: Monday, July 22, 2024 2:57 PM
To: towertalk@contesting.com <mailto:towertalk@contesting.com>
Subject: [TowerTalk] Hygain 18-HT 160m Trap wanted
Anyone have a new or used 160m trap for sale that is used on the 18-HT? (I
don't remember the part number...).
Allen R. Brier N5XZ
1515 Windloch Lane
Richmond, TX 77406
713-705-4801
--
This email has been checked for viruses by AVG antivirus software.
www.avg.com <http://www.avg.com>
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------------------------------
End of TowerTalk Digest, Vol 259, Issue 15
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