[SBE] SBE Digest, Vol 499, Issue 1 COAXIAL CAMERA FEED

[Henry's AFLAC]

You could use a copper clad PC board as the static side, and carbon brushes (make from pencil lead) for the moving part. Much like the old MK III quad video head wheel. Any metal to metal would have too much noise generation unless the cam vid was digital. You could also make a coaxial capacitor, or coaxial transformer, but the wideband width of video would get ugly response. make two circular copper tracks, use 4 pencil leads on springs loaded holder (clothes pins works) so you have two "brushes" on cold and 2 on hot lead.  DO NOT try to pass power through this!  You could use RF finger stock, as used on RF tubes, platelines in FM rigs, etc. but they have to be silver plated or gold plated to be low noise. 

Henry Ruhwiedel



Ask me about AFLAC, It pays YOU!
 



-----Original Message-----
From: Gary Kenny <kjpxtv at gmail.com>
To: sbe member discussion mail list <sbe at sbe.org>
Sent: Wed, Apr 25, 2012 10:34 am
Subject: Re: [SBE] SBE Digest, Vol 499, Issue 1


Why not use 2 Ghz or 5.6 Ghz into an omni ant. A simple 
1/4 wave coaxial ant.( Coax with, 1/4 wave legnth center conductor and 1/4 wave lenth of the braid pulled back over the insulation.) Gary Kenny KJPX joplin KJPXTV at gmail.com


 
On Wed, Apr 25, 2012 at 9:04 AM, Kevin Ruppert <kruppert at wisctv.com> wrote:

Have you looked in the Pasternack Enterprises catalog?

They might have some kind of rotating waveguide that you could use.
(75 Ohm)

These type of things are used in antennas for radar or tracking antenna
for satellite.

-Kevin Ruppert

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Subject: SBE Digest, Vol 499, Issue 1

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SBE Roundtable

Today's Topics:

  1. Video bushing for a rotating stage? (F Berman)
  2. Re: Video bushing for a rotating stage? (ednixon)
  3. Whisper Room for sale (Curt Yengst)
  4. Third Party Call In Management (Jonathan Solomon)


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

Message: 1
Date: Tue, 24 Apr 2012 10:00:46 -0400
From: F Berman <iamfberman at hotmail.com>
Subject: [SBE] Video bushing for a rotating stage?
To: "'sbe member discussion mail list'" <sbe at sbe.org>
Message-ID: <SNT133-ds816F02AAB1B429FEAF026DB260 at phx.gbl>
Content-Type: text/plain; charset="us-ascii"

Dear Roundtable: A client would like me to place a couple of HD cameras
on top of a rotating stage for a one-time, live production.  Instead of
transmitting wirelessly, I'm trying to find a bushing or similar device
that can be placed in the hole at the center of the stage to allow
connectivity of video and perhaps some data /telemetry control.

No, I can't stop the rotation or ask that it simply stop after, say, a
clockwise rotation and then counter-clock, thereby allowing me to simply
use traditional copper with slack.

While I imagine this could be fabricated, I'm looking for something off
the shelf with a bulletproof track record, either to rent or to
purchase.

I figure if anyone in the world knows of a solution for this, it would
be this group

Thanks in advance for any consideration

Am available off-list, thanks in advance

Frank Berman, CBTE
iamfberman at hotmail.com



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

Message: 2
Date: Tue, 24 Apr 2012 07:25:06 -0700
From: ednixon <ednixon at yahoo.com>
Subject: Re: [SBE] Video bushing for a rotating stage?
To: sbe member discussion mail list <sbe at sbe.org>
Message-ID: <275F36E1-CDD4-43DF-9A1D-ECDADDEE3E38 at yahoo.com>
Content-Type: text/plain; charset="us-ascii"

BoomRight LLC in Phoenix has such a spinning 360' mount on the end of
their booms that they showed at NAB.


expo.nabshow.com/.../Booth.aspx?...
BoomRight LLC ... 480-812-5092. info at BoomRight. com www.BoomRight.com

-fm-

Sent from my mobile



On Apr 24, 2012, at 7:00 AM, F Berman <iamfberman at hotmail.com> wrote:


> Dear Roundtable: A client would like me to place a couple of HD

> cameras on top of a rotating stage for a one-time, live production.

> Instead of transmitting wirelessly, I'm trying to find a bushing or

> similar device that can be placed in the hole at the center of the

> stage to allow connectivity of video and perhaps some data /telemetry

control.

>

> No, I can't stop the rotation or ask that it simply stop after, say, a



> clockwise rotation and then counter-clock, thereby allowing me to

> simply use traditional copper with slack.

>

> While I imagine this could be fabricated, I'm looking for something

> off the shelf with a bulletproof track record, either to rent or to

purchase.

>

> I figure if anyone in the world knows of a solution for this, it would



> be this group

>

> Thanks in advance for any consideration

>

> Am available off-list, thanks in advance

>

> Frank Berman, CBTE

> iamfberman at hotmail.com

>

> _______________________________________________

> The SBE Roundtable, SBE at sbe.org

> To unsubscribe, go to http://seven.pairlist.net/mailman/options/sbe

>

> http://seven.pairlist.net/mailman/listinfo/sbe

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Message: 3
Date: Tue, 24 Apr 2012 15:23:02 +0000
From: Curt Yengst <cyengst at star991fm.com>
Subject: [SBE] Whisper Room for sale
To: "sbe at sbe.org" <sbe at sbe.org>
Message-ID:

<E6FCAD355E07C4438FC7D62B354BF61337178C31 at POFNJEX01.pillar.local>
Content-Type: text/plain; charset="iso-8859-1"

For Sale:

1 Whisper Room isolation booth.  7x7x7.  With window and ventilation
hardware.  Very good condition.  $4000 or best offer.  Buyer must pick
up in central New Jersey.  Pictures available upon request.




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Message: 4
Date: Tue, 24 Apr 2012 16:04:59 -0400
From: Jonathan Solomon <jon at thesolomonhouse.com>
Subject: [SBE] Third Party Call In Management
To: Society of Broadcast Engineers <sbe at sbe.org>
Message-ID:

<CAOJaD8o7GREM6jk__KirgAormVVh4ewwtQum808kH0WNqre0TQ at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

Good Day Everyone-

Has anyone ever used a third part call in management service?  That is a
third party that would take in your incoming calls for a show (radio,
TV, whatever), weed out the crazies and present you a list via a web GUI
or portal for the callers that you might want to take, and then let you
accept each single caller?

I'm trying to avoid (a) a bunch of POTS or PRI and (b) personnel.

Thank you for your replies in advance.
Jonathan


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

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End of SBE Digest, Vol 499, Issue 1
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