[TenTec] TenTec Digest, Vol 162, Issue 21

Fri Jun 17 13:18:16 EDT 2016

STUART! Thanks for the encouragement. I'll keep everyone up to date. My
latest theory is excessive heat does something to the 'swaged' SO-239
antenna connections. So it's sitting out i the open now all day receiving
with me operating into a dummy load now and then. I guess I should do as
someone said and just leave it on at 90 watts for an hour into a dummy
load, that should give some sort of answer. i'm workign up to it!! ha ha

73 thanks for all the input
Mike Rutkaus
K4QET

On Fri, Jun 17, 2016 at 12:00 PM, <tentec-request at contesting.com> wrote:

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> Today's Topics:
>
>    1. Re: Omni VII SWR (k8mp at aol.com)
>    2. Re: OMNI VII SWR going high--heat releated (Stuart Rohre)
>    3. Re: OMNI VII SWR going high--heat releated (Al Gulseth)
>    4. Re: Omni VII SWR (Greg S)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 16 Jun 2016 12:06:39 -0400
> From: k8mp at aol.com
> To: tentec at contesting.com
> Subject: Re: [TenTec] Omni VII SWR
> Message-ID: <15559f6de5c-1daf-1727 at webprd-m87.mail.aol.com>
> Content-Type: text/plain; charset=utf-8
>
> Hi Mike,
> Take that combo to FD and run 24 hours of CW in 90 degree weather. That'll
> tell you if you nailed it. :)
> Good luck with it.
> Joe, K8MP
>
> Sent from AOL Mobile Mail
>
>
> -----Original Message-----
> From: Michael Rutkaus <mrutkaus at gmail.com>
> To: tentec <tentec at contesting.com>
> Sent: Thu, Jun 16, 2016 11:49 AM
> Subject: [TenTec] Omni VII SWR
>
>
>
> hmmm. The Alinco DM-340MV analog 12 power suppy might have been bumped up
> to
> slightly over 14v on its adjustment knob. i've lowered that to 12v and kept
> a small fan blowing over the unit and it seems ok right now after a 2 hr
> test. Makes sense. At this point don't know if it needs the extra fan
> blowing from the back or the lowered input voltage, or both.
>
> Kinda stupid, I know.
>
> Mike
> K4QET
>
>
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> ------------------------------
>
> Message: 2
> Date: Thu, 16 Jun 2016 14:55:36 -0500
> From: Stuart Rohre <rohre at arlut.utexas.edu>
> To: tentec at contesting.com
> Subject: Re: [TenTec] OMNI VII SWR going high--heat releated
> Message-ID: <57630438.5000500 at arlut.utexas.edu>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Can you set the rig on top of the bookcase and try its heating up there?
>   Sounds like 2.5 inch clearance is NOT enough.
>
> Stuart
> K5KVH
>
>
> ------------------------------
>
> Message: 3
> Date: Thu, 16 Jun 2016 20:14:22 -0500
> From: Al Gulseth <wb5jnc at centurytel.net>
> To: tentec at contesting.com
> Subject: Re: [TenTec] OMNI VII SWR going high--heat releated
> Message-ID: <201606162014.22728.wb5jnc at centurytel.net>
> Content-Type: text/plain;  charset="iso-8859-1"
>
> I'm inclined to agree with Stuart - in my book it's not a good idea to put
> a
> piece of equipment in a "claustrophobic" (if you get my drift) enclosure
> without LOTS of forced air flow unless the manufacturer has specifically
> designed the device to withstand that sort of environment.
>
> 73, Al
>
> On Thu June 16 2016 2:55:36 pm Stuart Rohre73,  wrote:
> > Can you set the rig on top of the bookcase and try its heating up there?
> >   Sounds like 2.5 inch clearance is NOT enough.
> >
> > Stuart
> > K5KVH
> > _______________________________________________
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>
> ------------------------------
>
> Message: 4
> Date: Fri, 17 Jun 2016 14:43:55 +0000 (UTC)
> From: Greg S <oldlongbeard at yahoo.com>
> To: Discussion of Ten-Tec Equipment <tentec at contesting.com>
> Subject: Re: [TenTec] Omni VII SWR
> Message-ID:
>         <5954886.5268190.1466174635674.JavaMail.yahoo at mail.yahoo.com>
> Content-Type: text/plain; charset=UTF-8
>
> Mike- I should think a slightly higher voltage as you listed would be
> fine, as current drops with a rise in supply VDC. It is well within specs.
> I would be sure no ancillary equipment (Other than Mic and/or key and dummy
> load) are plugged in, and see if the situation changes. I would also
> measure that supply voltage with a meter (Scope to look for excessive
> ripple would be better) at the rig. (In-line fuses/fuse holders have been
> known to cause these  type of erratics lately on other equipment..... be
> sure to eliminate them as a cause.)  If problem persists with rig in free
> air, I am out of ideas for now. Please report back to the list as you have
> time.
>
> 73-
> Greg, KC8HXO
> --------------------------------------------
> On Thu, 6/16/16, Michael Rutkaus <mrutkaus at gmail.com> wrote:
>
>  Subject: [TenTec] Omni VII SWR
>  To: tentec at contesting.com
>  Date: Thursday, June 16, 2016, 11:47 AM
>
>
>  hmmm. The Alinco DM-340MV analog 12 power suppy might have
>  been bumped up to
>  slightly over 14v on its adjustment knob. i've lowered that
>  to 12v and kept
>  a small fan blowing over the unit and it seems ok right now
>  after a 2 hr
>  test. Makes sense. At this point don't know if it needs the
>  extra fan
>  blowing from the back or the lowered input voltage, or
>  both.
>
>  Kinda stupid, I know.
>
>  Mike
>  K4QET
>
>
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> ------------------------------
>
> End of TenTec Digest, Vol 162, Issue 21
> ***************************************
>