[TowerTalk] G-2800DXA lightning damage

[Larry]

I use Morgan M-348 units. The Wireman (thewireman.com) in SC (and probably 
others) sells them.

73, Larry  W6NWS

-----Original Message----- 
From: EDWARDS, EDDIE J
Sent: Thursday, September 04, 2014 12:21 PM
To: towertalk at contesting.com
Subject: Re: [TowerTalk] G-2800DXA lightning damage

Regarding the issue of lightning damage to control boxes, I'm wondering if 
you guys are using surge protectors on your rotor lines or not?

Polyphaser makes one and probably some others do as well.
http://www.dxengineering.com/parts/ppr-is-rct


73, de ed -K0iL

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Subject: TowerTalk Digest, Vol 141, Issue 12

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Today's Topics:

   1. Re: G-2800DXA lightning damage (Edward Sawyer)
   2. Re: [Bulk] Re:  G-2800DXA lightning damage (Grant Saviers)


----------------------------------------------------------------------

Message: 1
Date: Wed, 3 Sep 2014 18:08:16 -0400
From: "Edward Sawyer" <SawyerEd at Earthlink.net>
To: <towertalk at contesting.com>
Subject: Re: [TowerTalk] G-2800DXA lightning damage
Message-ID: <000301cfc7c3$902b2310$b0816930$@Earthlink.net>
Content-Type: text/plain; charset="us-ascii"

To my knowledge, Yaesu does not repair the rotor or the control box.  They
will sell you the control box but its not cheap AT ALL!  They will also sell
the stand alone rotor without the control box.



To properly debug the problem, it is always handy to have an extra Yaesu
control box so that it can be swapped out to see if the problem is the box
or the cable/rotor.  I have actually found the rotor itself to be darned
reliable.  But the boxes are incredibly fragile to all kinds of stuff.  I
have a grave yard of a number of boxes and have a winter project in mind to
try and make one good or maybe two good boxes out of them so I have spares.
Its not a matter of IF you need to replace a Yaesu rotor control box - it's
a matter of when.



Ed  N1UR



------------------------------

Message: 2
Date: Wed, 03 Sep 2014 20:12:47 -0700
From: Grant Saviers <grants2 at pacbell.net>
To: towertalk at contesting.com
Subject: Re: [TowerTalk] [Bulk] Re:  G-2800DXA lightning damage
Message-ID: <5407D8AF.5000104 at pacbell.net>
Content-Type: text/plain; charset=windows-1252; format=flowed

Having been into the 2800 control box for mechanical repairs, I
understand why Yaesu doesn't repair them.  It's a dog's breakfast of
interconnections among 3 pcbs.  The schematics are just as bad,
spaghetti signal flows.  The servo control to drive the pointer drive
motor is complex.  The gear train behind the pointer is not for the
fumble fingered and the o-ring used to drive the pointer is just this
side of comical.  The whole thing has to come apart for replacement when
they stretch or dry rot.  My advice is to buy a Green Heron if the
control box is bad.

The rotator mechanics OTOH seem pretty well made and designed (except
for getting the 500 ohm pot precisely aligned).

Grant KZ1W


On 9/3/2014 3:08 PM, Edward Sawyer wrote:
> To my knowledge, Yaesu does not repair the rotor or the control box.  They
> will sell you the control box but its not cheap AT ALL!  They will also 
> sell
> the stand alone rotor without the control box.
>
>
>
> To properly debug the problem, it is always handy to have an extra Yaesu
> control box so that it can be swapped out to see if the problem is the box
> or the cable/rotor.  I have actually found the rotor itself to be darned
> reliable.  But the boxes are incredibly fragile to all kinds of stuff.  I
> have a grave yard of a number of boxes and have a winter project in mind 
> to
> try and make one good or maybe two good boxes out of them so I have 
> spares.
> Its not a matter of IF you need to replace a Yaesu rotor control box - 
> it's
> a matter of when.
>
>
>
> Ed  N1UR
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>



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