They are from the AB-1373/TRC system and were made in France by LERC SA.
Information can be seen at
https://www.epicos.com/sites/default/files/sleeve_masts.pdf. They are
currently available from Comrod as their MLV Mast Series, Model MLV 125.
I had one of these systems once. The sections were made of carbon fiber,
very strong and light weight compared to a similar sized fiberglass
section. The system cost the US Govt just shy of $40K about 15 years ago
based on the documentation that came with my system.
This is a very complex system when compared to the older aluminum AB577 and
AB621 mast systems.
73,
Henry - K4TMC
You can do Google searches for Vertical Sleeve
On Wed, Apr 1, 2020 at 10:05 PM Grant Hopper <kb7wsd@gmail.com> wrote:
> Which Facebook group? I can't quite make out the military part number to
> get more info. Wanna go look at the original. Not interested in buying
> since I have a 75' AB-577 and that's more than good enough for me, but I've
> tried to collect basic info about many of these portable systems.
>
> 73,
> Grant
> KB7WSD
>
> On Wed, Apr 1, 2020 at 6:54 PM wb2aio--- via TowerTalk <
> towertalk@contesting.com> wrote:
>
> >
> >
> >
> >
> >
> https://scontent-ort2-1.xx.fbcdn.net/v/t1.0-9/c0.79.720.720a/p720x720/89626463_617678672410827_8685364543364268032_o.jpg?_nc_cat=110&_nc_sid=843cd7&_nc_ohc=nMhgCRPNvlEAX9SAU7f&_nc_ht=scontent-ort2-1.xx&oh=4b0962f5f454bc73dc0f6bd147751ac1&oe=5EAB8ACB
> >
> >
> > I ran across this ad on Facebook. Hadn't ever seen this version before.
> > Ham radio tower wire antenna mast pole
> >
> > |
> > |
> > |
> > | | |
> >
> > |
> >
> > |
> > |
> > | |
> > Ham radio tower wire antenna mast pole
> >
> > This is a 90ft + - 5 inch diameter fiberglass mast. It is made up of
> > sections about 4ft long. It is fairly simp...
> > |
> >
> > |
> >
> > |
> >
> >
> >
> >
> > On Wednesday, April 1, 2020, 12:01:32 PM EDT, <
> > 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. Who says Smith charts are boring? (Dan Maguire)
> >
> >
> > ----------------------------------------------------------------------
> >
> > Message: 1
> > Date: Tue, 31 Mar 2020 22:47:51 -0700
> > From: Dan Maguire <danac6la@gmail.com>
> > To: towertalk <towertalk@contesting.com>
> > Subject: [TowerTalk] Who says Smith charts are boring?
> > Message-ID:
> > <CAOnXRMuWS3s7ECUJTD=rprxgFfCk+gGjTyJvt6vXQC3tCyDEmw@mail.gmail.com>
> > Content-Type: text/plain; charset="UTF-8"
> >
> > Ward Harriman, AE6TY, the creator of SimSmith (
> > http://www.ae6ty.com/Smith_Charts.html ), is stuck inside like many of
> > us. He decided to spend a bit of his free time creating this:
> >
> > https://i.imgur.com/FrOFz1a.gif
> >
> > Pretty amazing, eh? More info starting at this SimSmith groups.io
> > post and in the follow-up posts in that thread:
> >
> > https://groups.io/g/SimSmith/message/988
> >
> > Dan, AC6LA
> >
> >
> > ------------------------------
> >
> > Subject: Digest Footer
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
> >
> > ------------------------------
> >
> > End of TowerTalk Digest, Vol 208, Issue 1
> > *****************************************
> >
> > _______________________________________________
> >
> >
> >
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