Archive for the ‘Networks’ category

Video Servers

May 12th, 2012

air_smallOur Matco servers have been acting up lately. Our original one is several years old and acts up now and then. A client of ours got a Matco more recently but has stopped using it so we switched over to that one but that too has been going or driving us nuts. When to clips are back to  back the second one does not play for some reason. the server just stops and we switch to the default input on the switcher.

We are planning to have one or the other serviced by Matco but the decision was made for us by PG&E, when we lost power (see next post or two) it killed the power supply on our Matco. So it’s down.

single-channel_smallBut a friend of mine has been looking at a newer server company called Cinegy, a newer automation / video server software package. I saw them at NAB 2012 and they seems very friendly and helpful. They offer a free demo, it comes with no limitations, just a key over the output channel. This way you can really get to know the product before laying down your bucks.

My friend has been looking at the product and likes it, which makes me think it could work for us. It can do several output channels at once and you can get a CG program for it but thats a bit pricey for us.

Maybe even use the old Matco box to run this in, but I think I  would prefer a new box with lots of storage.

We could sell all our old equipment and just have a couple of these with a network to ship files around the studio. I think this could work out really well.

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New Radios

April 24th, 2012

Working on a project that uses IP radios to transmit HD-SDI over IP. These radios are from Exalt and can work at upto 1Gb/s. The great thing is that we can monitor and control both ends via a Web GUI. I was sitting up in the office looking at the data rate and received signal levels of both the local and remote transceivers.  We have some alignment to do on the dishes as the received levels are too low, I think we may be on a lobe and not the main beam. Plan to fix that tomorrow.

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The Fifth Day at NAB 2012

April 19th, 2012

First it was a Broadcasters Breakfast with ERI, they laid out a really nice setting and then got down to business. They had the story of  KJAV and the new Chief who found the tower about ready to fall. ERI worked with the station to take down the old one and put up a new one in just a few weeks. They showed video of how different tower are taken down with controlled falls and how they  make sure the TX building is not damaged. Very interesting.

Then I went by their booth and asked if they would help with a video I am thinking of on guyed towers. They were very cooperative and I hope to use ERI to make sure I don’t make any mistakes in the tutorial.

Later in the day a seminar about Cel Phone ENG. I know they have been doing this for at least a year or two now but it has really grown now. They talked of a news piece covered by ABC with both a Truck and a Cell Pack and when it started sooner than expected the Truck was not ready and it was covered with just a Cel Pack. Other events have been covered on moving trains even.

The 3G networks can be hard to get thru as more and more smart phones are used and latency is a problem, thats why multiple cel phone network adapters are used (lots of Rabbit Ears as I call them). But even with 4G it will fill up too. Even with great compression it’s still a lot of data to move over something designed to get you your Google map or update your phone Apps. They see a combination of Cel Networks and WiFi as an answer when the system can use both at the same time to off load some of the data. Panasonic is even working on a ENG camera with LTE networking built right in.

One company, TVU, is working on a backpack with both Cel Network connectivity and ASI out to feed a remote truck so both can be used as needed.

Stopped by the FEMA booth and they had a little model of a Primary Entry Point facility. Very interesting and something I will go into more detail later on.

I met Steve Mareen of RF Specialties Group over at the Hitachi / Linear booth where I met the guy who is going to setup one of their exciters at my transmitter next week. They want to show it off working on a real high powered transmitter and I agreed to let them do in. They tell me it should take all of 1/2 hour to get it going. I will report on this next week.

Before that I was over at the Thomson booth and talked with Michael Roosa our salesman and Richarad Fiore Director of Transmission & Mobility about their new exciter the ATSC 8000 which I was told the story of a station that wanted to increase it’s power level from 40KW to 50KW as I recall but pushing the tube that much made correction so difficult that after several exciters were tried only the ATSC 8000 had the correction range to get the job done.

I walked over to TeraDek and saw how small they make the SDI to Cel Network adapters now little bigger than a paperback book. They also make one that uses WiFi to stream to a local laptop or to iPads for remote monitoring. Pretty cool.

 

Time to get out to the show for an early start on the last day and then it’s back home.

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IP Radio

April 11th, 2012

We’re putting in some IP radio links that will transport HD video back to the stations. Today we were getting one of the radio links up and running. It works at 11 GHz. The radio is attached to the back of a 6 ft dish and uses only CAT5 cable to connect to it. The one cable carries power and data.

First a Surge Suppressor is placed in-line followed by the POE (Power Over Ethernet) adapter and then it’s connected to the Network switch. We have a fiber optic network setup so the switch has a F/O SFP that takes the data downstairs and on to where it’s going.

We’ve come a long way to be able to hook up a microwave with a Cat 5.

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Wired Network for iPad

March 26th, 2012

We are looking at using an iPad to display data while on the tower, to do this we would need a wired network connection since a wireless network won’t  (may not ) work. But I cannot find any adapters to allow a wired network connection for the iPad. It seems that the common solution is to use a pocket wireless router that plugs into the RJ45 and provides a wireless network for you. The iPad to USB adapter will not work with a USB to Ethernet adapter as I have read, so thats out.

The reason for this is FileMaker Go, it’s an App that lets us access a FileMaker Pro file on your iPad or iPhone. I created a data base in File Maker to keep track of all the antenna and cables on the tower, it uses seven data bases to contain all the data. If the iPad is on the same network as a computer with the data base on it can be accessed on the iPad. If not, you can load the the files on to the iPad or iPhone and then you can load the changes back to the computer based data base.

The reason for all this is so I can go put the tower and compare the data base with whats really up there.

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Should the office and your BCast Networks Co-Exist as One?

February 25th, 2012

Right now there’s a lively discussion on whether your company’s network and your broadcast network should share the same infrastructure, its on Linkedin’s Broadcast and Technical Professionals board.

It makes for some interesting reading. Click here

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Ranting about Media Files

February 25th, 2012

The other day a fellow engineer was sharing his thoughts on media files used in broadcasting and his station in particular, he was ranting. His station has logo inserters and the guy who does all the artwork for them can’t seem to keep straight that what looks good at 700 by 700 pixels may not look good at 40 by 40 pixels. He says it always take the guy about three try’s before the logo looks good.

Then when they want a new News open or some other motion graphic they always get the wrong file format from their creative service’s guy. When they complain that it’s the wrong format this guys says “it’s 1920 by 1080 60I, what do you want?” and they have to tell him, again, that their servers need it in MPEG2 format, not AVI.

With servers just a few years old the types of file formats they can accept is not upto date, and even the latest video server that does accept more formats still has to be made compatible with the older ones so files can be shared across all the servers they have. He told of the head Mucky Muck up in corporate stating that all video submitted for air must follow his standards for frame sized and file format. Well the advertisers had their own ideas and continued to provide whatever format was convenient to them, their paying the money so you convert, seems to be their motto. Then theres the shows that arrive in various formats and need to be converted before air and this falls to the engineering department since they seem to be the only ones who understand what is required.

My friend longed for the days of NTSC, where there was only one true format. You could manipulate any file you wanted within your graphics box or NLE but everyone knew that the final output had to be, NTSC.

NTSC is dead, long may we pull our hair out over the wrong file or frame format.

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A Real Head Scratcher

February 23rd, 2012

No Lights on the right

I am trying to setup those Data Probe IP IO-8 boxes and I need to have several of them attached to a switch along with my MacBook Pro to set them up. So I borrow this Dell switch and plug in the boxes, the little lights on the RJ 45 on the switch light up, fine. I plug my MacBook Pro into the switch and nada, no lights. The Mac says it’s not connected to anything. Bad cable? I switch cables, and switch them again. Still the same, both the switch and the Mac act like their not connected.

I get a Crossover cable thinking that might help, no! I plug in a Dell laptop I have and it works just fine, switch lights up the Dell sees the network, what gives.

I am looking at the Preferences for Networks on the Mac and I click on Advanced and I notice the Hardware button. I click on it and see that I can take it out of Automatic and set the parameters of connection speed and Duplex mode. So I take it out of Auto and take it to 100baseTX and Full Duplex. It works, the switch’s lights come on and the Mac sees the switch. What was that all about?

I talked with my friend Phil and he tells me he has run into this more than once. Either both ends have to be set to auto negotiate or be preset. They can’t be mixed. Mostly Phil says the problem shows up as a very slow connection, not no connections as in this case.

I still think it’s odd that the Dell Switch and my MacBook Pro could not talk to each other.

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Learn Digital Content Storage from SMPTE

February 23rd, 2012

SMPTERegistration is now open for SMPTE’s March PDA Now Educational Webcast!

To Have and Have Not:  Digital Content Storage in a Petabyte World
Thursday, 8 March 2012
18:00 UTC /10:00 Pacific/13:00 Eastern
Webinar login details will be provided with your registration confirmation
Registration is FREE for SMPTE Members and $49 for Associate Members and Non-Members.

Guest Speaker:  Tom Coughlin, Coughlin Associates

Large rich media projects are getting ever bigger and raw content of multiple petabytes is becoming more common.  Managing and protecting this content is a challenge and it is often a question whether backed up data can be recovered if the original copy is lost.  Our presenter will explore developments in storage devices and systems used in modern digital workflows. These new developments are enabling accelerated collaborative media projects with ever larger source materials.  Mr. Coughlin will also explore methods for creating, organizing and protecting rich media content including flash memory, local disk, digital tape and storage in the cloud.

For More Information or to Register, Click Here or go to http://pda2012march.eventbrite.com

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Edit Video on the iPad

February 23rd, 2012

Avid has a new App called Avid Studio that lets you edit video on your iPad and upload it to YouTube. YouTube and FaceBook seems to be the only places you can send your edited video to for now though. But it looks interesting, and more possible than editing on your iPhone. It seems you can do effects and add titles.

So now the news department can send their reporters out in the field with just an iPad and Avid Studio and have them send back fully edited stories. What a change  from Film at Eleven.

And it’s only $4.99

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