Monthly Archives: February 2012

January Meeting Report

February 11, 2012
By

Cable Labs Presentation and Tour

Date: Wednesday, January 18, 2012
Time: 6:00PM Refreshments, 6:30PM Meeting/Tour
Location: Cable Labs, 858 Coal Creek Circle, Louisville, CO 80027
Topic: Tour of Facility and Talk on Current Research at Cable Labs

SMPTE Rocky Mountain Section and SBE Chapter 48 met at Cable Television Laboratories, Inc. in Louisville, Colorado onJanuary 18, 2012. There were 35 attendees for the CableLabs presentation and tour.

Chris Lammers, Mark Guzinski, Kari Hiatt and Tina Tindall, were our hosts from the Labs.  Chris Lammers presented an overview of the Cable Labs organization, mission and technology activities.  Notable activities include the DOCSIS cable modem standards, SMARTLife (security, monitoring and automation) and IPv6 transition support. Current video work includes efforts with respect to tru2way™ middleware, Online Content Access (use cases, technical requirements, protocols and architecture to allow digital video subscribers online access to their subscription programming content) and home networking. Business extensions to PacketCable™ include defining communication interface requirements for business telephone features and enterprise IP-PBX interconnection over broadband networks.

 The tour of the Lab’s faculties’ by Mark Guzinski took the group through labs and facilities used for certification, qualification, and verification testing as well as for product development by various providers of products and services for the cable industry. 

Thanks to the CableLabs staff for their hospitality and a very informative meeting at and about this world class high technology facility.

photos by Tom Goldberg

Random Radio Thoughts for February

February 11, 2012
By

Cris Alexander, CPBE, AMD, DRB Crawford Broadcasting Company

KLTT NX50 and MDCL in Colorado

My apologies for not getting a column out last month. Year end is always a challenge around here, and this year was a triple whammy with year end, holiday vacation (hah!) and a transmitter project that I couldn’t keep my hands out of.

KLTT CE Amanda Alexander with her new Nautel NX50 transmitter

The new KLTT Nautel NX50 transmitter arrived on the Wednesday after Christmas, the delivery truck showing up a few minutes before the crew that Amanda had lined up and the forklift! Once everyone got there, it didn’t take us long to get the new rig off the truck and into the building.

We got the transmitter, transformer and ancillary stuff uncrated in short order, then levered everything off the skids onto the floor using a pry bar, the biggest one that Lowes had on hand. We had also purchased three 4-foot lengths of ¾” iron water pipe, and we used that as rollers to get the transmitter across the floor into place and the transformer (1,300 pounds!) into the transmitter.

The electrical work had mostly done the week before Christmas; all that remained, or so we thought, was to make the final connection into the transmitter. As it turned out, there was a safety interlock switch that goes in the 480-volt line that was not mentioned in any of the pre-installation documentation or even the installation manual. That wasn’t a lot of work, however; the electrician mounted it right next to the disconnect and used a short nipple to get the three phases into and out of the safety interlock.

While the electrician was installing the rough electrical the week prior and we had the power off, Amanda and I removed the 7/8-inch transmission line from the old aux transmitter, a Nautel ND2.5, and we punched out the hole in the top of the phasor to 3½ inches and drilled out the six 3/8-inch holes for the EIA flange bolts. We made the new connection inside the phasor and re-plumbed the RF to make the main the aux and vice-versa.

On installation day, by about 2:00 PM we had power to the transmitter and started going through the commissioning checklist. We were making (unmodulated) RF into the dummy load a short time later, cranking it all the way up to the licensed 52.650 kW TPO before shutting it down to start working on control and audio cabling.

The following day we wrapped up the remote control, audio and Ethernet wiring and were ready to modulate. Our first attempt resulted in two separate audio sources modulating the main (analog) carrier, one a second or so out of time alignment with the other. We finally figured out what was wrong and got that cleared up, and in short order we had it sounding great in both analog and digital. In fact, the digital adjustments were a snap and took just a couple of minutes to optimize. KLTT’s digital lock time on every HD radio I have tried is about a second, the fastest in town!

The KLTT NX50 Screen

The following week we activated the Modulation Dependent Carrier Level (MDCL) feature, which in the AMC algorithm reduces carrier power during periods of heavy modulation. The theory is that as long as sufficient carrier is maintained for proper demodulation, you really don’t need a full-power carrier during high modulation. When the modulation is reduced (during quiet passages or periods of silence), the carrier comes back to full power so that the AGCs in receivers doesn’t run up the noise.

The effect of all this is what I can best describe as “extreme carrier shift.” The very thing we worked so hard to prevent all these years is now desirable! We have the AMC carrier reduction set to 3 dB right now, so we see the carrier power drop to a little over 26 kW when the modulation is heavy. The sideband power is not affected by the MDCL operation, so loudness and coverage area are not affected.

We have been operating MDCL on our 50 kW station in the San Francisco market for several months now, long enough to get a read on the power savings. In both November and December, we noted a 21% decrease in power consumption over the same billing period last year. That’s nothing to sneeze at, an $800 per month savings! We look for similar savings at KLTT going forward.

Because demand is such a big part of the electric utility cost, it occurred to me that if we were to operate the Nautel ND50 auxiliary transmitter at full power for more than a very few minutes, we would push our peak demand back up to its old level and that would negate most of the savings we would have achieved with the NX50’s MDCL. So we did a firmware update in the ND50’s exgine and IBOC exciter to incorporate MDCL in that transmitter as well. It works great, producing the same carrier reduction with modulation that we are seeing with the new transmitter.

When walking into the KLTT transmitter building, we notice two things these days: quiet and cool. The NX50 is practically silent compared to the 1995-vintage ND50. And all that waste heat that we could always count on to keep the building comfortably warm in the winter months is now gone. The exhaust air from the NV50 has very low volume and is just a few degrees above ambient. That means that we actually have to run the heat in the building to keep the temperature above 50 degrees when it’s cold outside!

If you want to see some photos of the project, they are available at http://www.crawfordbroadcasting.com/Eng_Pics/KLTT_NX50/. These were taken with several different cameras and as such are in chronological order by camera, not in straight chrono order from start to finish. The folks in the photo are Cliff Mikkelson (Salem-Denver CE), Mike Kilgore (general contractor), Keith Peterson, Amanda Alexander and yours truly.

(Copper?) Thieves!!
At 2:00 AM on January 12, thieves tried to gain entry to the KLTT transmitter building.

They used bolt cutters to cut the chain on the gate (we know this because they left their bolt cutters on the ground by the gate post). Then they evidently used a hammer to break off the doorknob on the front door, which freed the “realtor box” hanging on the knob.

And they then presumably smashed the realtor box to get to the key inside, then put it in the deadbolt and unlocked it. But they didn’t get in – in smashing the door knob froze the lockset mechanism so that it would not turn. They did, however, rattle the door sufficiently to trip the burglar alarm, and the alarm company called the Adams County Sheriff, who responded to the attempted break-in along with Amanda and her assistant Keith Peterson.

Before they took off, they evidently took a swipe at the door handle on the back door as well, so we ended up replacing both deadbolts and both locksets. We upgraded the exterior lighting, and we are also upgrading the alarm system and expanding it to include the tower base areas. We have never had an attempted break-in or any copper theft at that site (although a prairie dog exterminator did have his unsecured ATV stolen from behind our building last year), but now that the site is “on the radar,” we will beef up security at the site.

If you have news to share with the Rocky Mountain radio engineering community, drop me an email at crisa@crawfordbroadcasting.com.

KEØVH Hamshack for February 2012

February 11, 2012
By

Jack Roland KEØVH@q.com

Greetings all, I hope you had a great beginning to the New Year, and now that we are in the swing of writing 2012 in our checkbooks, time for some new projects.

For a long time I have been fascinated by converting old computer power supplies into something useful for the work bench or powering a radio.  Never hurts to have an extra power supply on hand too, for whatever the reason.  There are many articles on how to convert a computer PS into a bench supply to provide 12 volts for whatever use you might need.  A few years ago I converted one that I have used for many applications such as powering a business band 2-way radio, and then after that was done I used the same PS to power an APRS beacon that I ran on Lookout Mountain for a year or two.  I won’t bother with listing all the ways to do this as there is plenty of information on the internet, but I will show one of my conversions here.  The main thing is to bring the regulation up by providing a resistance across the 5 volt lines, and many supplies are either adjustable or can be modified to do so.  The easiest way is to provide a 1 ohm 10 watt resistor across one of the 5 volt lines to ground to do this.  Again, all the technical explanation is easily found on the internet.

Interior of the Power Supply

In the picture above the leftmost blue adjustment pot allowed me to set the PS to about 12.9 or so volts.  You can experiment with this or other ways of raising the voltage to the proper level depending on the supply.  The resistor to bring up the 5 volt regulation is shown below.  It is mounted on one of the heat sinks where there is room with heat sink compound on it to the metal sink.

    

          The front of the supply        The 1 ohm 10 watt “regulating” resistor

I installed an LED on the “Power Good” line for on indication and a toggle switch to turn the PS on and off from the front panel using the pair of wires indicated for power on and off.  The circuit board in this case was labeled where the wires were attached, but again this information is available on the internet easy enough. I installed an Anderson Power pole thru holes drilled in the front and another pair on another 12 volt/ground wire pair out the back of the PS.   The PS is being used right now as a bench supply or backup where needed.  This one delivers 12.9 volts at 15 amps, and I will experiment in the future with different uses and see how it holds up.

Another great project that I have a real interest in is what my friend Kenny, K4KR in Chickamauga, Georgia near Chattanooga, Tennessee has been up to lately.  He obtained an amplifier module from Bruce, WA2ZST, who is an engineer with CBS-TV in New York City, which originally helped to power the Harris transmitter for WCBS-TV.  Kenny has built a 50 volt 50 amp power supply to run the amplifier, and will soon be putting a kilowatt out on 6 meters with this!  What an historical and cool piece of gear this is!  Several of these were obtained by ham operators around the country and are being converted for ham use.  Once Kenny gets this all racked up and mounted in his shack, he will be feeding a big 7 element with a 28 foot boom 6 meter yagi with it and will truly be a “big gun” on 6 meters.  More on this story as it develops!

K4KR 50 volt 50 amp power supply and former WCBS-TV Harris VHF amplifier.

 April is not too far away, and with it will come the 100th anniversary of the sinking of the H.M.S. Titanic in 1912.  If you are familiar with the story you will know that Jack Bride and Harold Phillips, the wireless operators aboard Titanic of course are remembered for sending out the CQD’s in morse code (then the equivalent of SOS) that made the Titanic’s plight known to the world.  There will be Ham Radio special event stations commemorating the event in honor of these radio operators, the passengers and crew lost, and the event that still captivates so many  My friends in England will be operating the GM100MGY (MGY being Titanic’s radio call sign) again as they did back in 1990, under the call sign GM90MGY.  From their official News Release:

To commemorate his heroism on the centenary of the disaster, a Surrey radio club – Wey Valley Amateur Radio Group – will set up a special radio station in April, 2012, located at Charterhouse School, on the outskirts of Godalming.  Transmissions in morse code on the amateur radio bands will begin on Tuesday, 10 April (the day, 100 years ago, when Titanic sailed from Southampton).  They will pause at 05.46 GMT on Sunday 15 April, the exact time at which transmissions from Titanic ceased and the vessel sank.  Titanic’s radio call sign MGY will be remembered by the station’s special UK call sign: GB100MGY.

A very special commemorative QSL card will be offered!  I will be in the hunt for that one for sure!  More information on the activities of the special station and sponsorship opportunities can be found by contacting Mike, G3IAF or Mike GØEFO via    GB100MGY@gmail.com

The QSL from the 1990 event

 WØS will also be operating out of Branson Missouri at the Titanic Museum April 14th and 15th 2012 and offer a really cool QSL card too from stateside.

Jim, KCØRPS made a “hut trip” to one of the cabins way up in the Rocky Mountains of Colorado to do some back country skiing and relaxing miles from any civilization.  The 10th mountain division huts, interspersed in the back country of the Colorado mountains and are accessible by hiking or skiing in offers solitude (unless you take a lot of friends, which is great fun), back country skiing, and the spectacular views of earth and sky that testify for sure to the handiwork of the Lord!  One of his companions on this trip took video and pictures to chronicle the weekend getaway!   It also is a great way to do some ham radio operating from great remote locations too.  Jim and I have talked via the Colorado Connection repeaters at various times, and he is working on a QRP 40 meter CW rig that he plans on taking with him soon.  Check the spectacular video of this trip at http://www.youtube.com/watch?v=yzql4b2H224&feature=youtu.be

Bob Heil, K9EID, and Gordon West, WB6NOA recently visited the set of ABC’s “Last Man Standing” starring Tim Allen, who plays a married father of three tries to maintain his manliness in a world increasingly dominated by women, and, is a ham radio operator!  Mike, KA0XTT, Allen’s character, operates a ham station on the show and on this facebook page there are pictures of Bob, Gordon, Bob’s lovely wife Sarah, and Tim Allen.

 https://www.facebook.com/media/set/?set=a.285406404850423.74590.269589906432073&type=1

Full a full write up about the show and Tim’s character, see this ARRL Article at:

http://www.arrl.org/news/em-ham-radio-in-hollywood-em-amateur-radio-makes-its-debut-on-em-last-man-standing-em

AND, Tim Allen isn’t the first ham in a sitcom.  Check this out for a “monster” great ham station:  http://www.youtube.com/watch?v=Kqx2ZCwHKa8&feature=related.

And, finally, have you seen the latest radio entry from China into the US market?  I and several others I know own the Wouxun (pronounce “OH-cheng” like “ocean” with a g at the end) dual band HT and are really happy with how well it works and sounds, not to mention the under $100 price.   Now, there is a $48.00 or so dual bander!  The handheld BAOFENG UV-3R (Mark II)136-174/400-470Mhz Dual Freq Display HT.  (See it at http://www.409shop.com/409shop_product.php?id=106279).  Wayne, WA2KEC, Jim, KCØRPS and several other hams we know are really happy with it.  And at this price how can you miss?  I look forward to seeing how this is received by the US ham community.  See reviews of this radio at http://www.eham.net/reviews/detail/9749 .

The radio also comes in many available colors, see the Rigpix pictures at: http://www.rigpix.com/mischam/baofeng_uv3rmk2.htm.

Don’t forget the SBE IRLP/ECHOLINK Hamnet, the 1st Saturday of the month and the 3rd Tuesdays now.  Details on how to join us are at http://www.qsl.net/ke0vh/sbehamnet

73’
KEØVH
www.qsl.net/ke0vh

Clay’s Corner for February 2012

February 11, 2012
By

On the 11th of January we held our State EAS Committee (SECC) Meeting at the Sand Point at the offices of the National Weather Service.  At some point in the meeting, WCM Ted Buehner mentioned that some weather was coming that we might want to be concerned about.    As predicted we had snow.  Not as much in the Seattle area as the ‘Low’ went inland a bit south of where it was projecting, however south of Olympia received a huge dump of the white stuff. With reportedly 18 inches in some places.   Like all snow fall in the Puget Sound area, it does not last all that long.   The forecast called for warming with the snow changing to rain (like normal) and we were all assured that the weather was about to get back to normal.   What really happened, was it rained (they got that part right) but the temperature failed to increase above freezing resulting in a record setting ice-storm.   Just to add good measure, we got another 2-3 inches of snow on top of the ice.   This time NWS, Cliff Mass and all the TV forecasters got it wrong.

The resulting ice storm caused a huge number of trees to loose limbs that fell into power lines causing about 500,000 to lose power.  The area of major impact was the Eastside through Tacoma and Olympia and south to Chehalis.    In my town, Auburn, 50% of the city was out of power.

Cougar Mt got about a foot of snow, topped with ice and, of course, no power.  Hauling a 4×4 of diesel to the site it became clear why; one phase was lying on the ground.  All together 70 hours of generator use at that site.  Our thanks to Steve and the crew at Don Small Oil for hauling in diesel in a big 4×4 when the usual suppliers said they would not go up there.

At West Tiger, both of the power lines feeding the site went down resulting in some 80 hours of generator time.  As murphy would have it, the road to the site was snowbound.  Not knowing how long it would take for a thaw, or power restoration, the road was plowed out.  If you think that Seacomm does nothing but tower work…Guess again.  John and crew went way over the top in coordinating the plowing of the West Tiger road, cutting a huge number of trees and hauled in some 1000 gallons of diesel.    To add to the problem, the only highway reaching the Tiger Mt Road is SR-18 which was closed from I-90 to Auburn!

From behind the wheel driving to West Tiger Mt.

Some stations were not so lucky and did not have back-up generators.  Others, like KVTI in Lakewood have an antenna that is very sensitive to ice without radomes or heaters. Reportedly the Capital Peak FM’s were off the air as was KSWS in Chehalis was off the air due to lack of access and a snowed in dish, KCKA-TV, at the same site was reportedly off the air, not sure why at this writing.   The ice on STL and Satellite antennas created Ice-fades that are hard to overcome.  In one instance, a station had heaters on their satellite antenna reflector, but the LNB and feed were put out of commission due to a heavy coating of ice. The Tacoma Narrows Bridge was closed due to falling ‘Bridgecicles” for several hours.   Then there is PSE that encouraged their customers to report outages via their computer.   Perhaps they fail to understand that most computers don’t operate without power.

Through all of this, a couple of things stand out –

1-    Over the air broadcasting is pretty hard to beat, especially when you are dependent on a system between you and the station you wish to receive.

2-    Reliance on an intermediate carrier for TV, Telephone and Internet can cause you to lose a number of services at the same time.  Something about eggs and baskets.

3-    My windup radio really was put to good use, kudos to KOMO and KIRO-FM.

4-    The Blue/Yellow and Red Jacket guys on the local Channels certainly did a great job of keeping us informed, even though it appeared that they were having difficulty coming up with new material

5-    Power line crews from all over – Working at Cougar Mt was a crew from BC

6-    The sounds of chain-saws and smell of wood smoke.

 

At the homestead, I was lucky in that we only lost power for about 6 hours; however, our cable was out until late on the 22nd.    My normal means of getting email etc. is via DSL and that did not return until the 26th.   I did, however, have POTS so I can see dial-up access to my ISP is going to be a must.    Thankfully we have a gas water heater, range and a great wood stove…fuel for that is laying all over the place.  Jim Dalke lives near me and on one of my drives by his place I could not help but notice that he must have a generator as his was the only house in the area with lights on.

On the West Tiger Road – Lowell Kiesow and Nick Winter from KPLU -The reason for the smiles….The road was just plowed and the going was easy.

Spotted something in a recent Issue of Consumer Reports – They did a survey asking which innovations from the past few decades would be the hardest to live without.  26% said Microwave Oven, 19% said home computer, 15% said cellphone and 14% said cable and satellite TV.   No mention of over the air broadcasting.

Another sign of the times is the fierce amount of competition for the automobile dashboard.  Car makers are racing to install the latest whiz-bang toys to the point that radios are now likely to be integrated into a larger package of electronics.   In the view of at least one maker, GM, it’s time for the CD player to go.

According to a recent piece in TV Technology, TV Antenna sales are booming, the main reason cited were cutting costs and video streaming video sites.   During our recent ice-storm those with antennas were probably better off for other reasons.

The FM version of HD radio is spreading a bit in various places in the world.   News reports this month tell of a new HD Radio Station in Dhaka Bangladesh.  The station is using a package of BE equipment.   Interesting how there is so many in this country reluctant to embrace the system while a new station in Bangladesh embraces it.

From the list of – I know where you are from by the way you drive comes this description of someone from Seattle. [One hand on latte, one knee on wheel, cradling cell phone, foot on brake, mind on game]

The 31st annual Mike and Key Amateur Radio Club Electronic Flea Market will be on Saturday March 10th this year at the Puyallup Fair Grounds Pavilion Exhibition Hall.   Been an annual event for me and several friends.

Seems to me that I have been writing about this for a very long time, like 3 years.  They are projecting that Tribune (owner of a couple TV stations in our town) may exit bankruptcy by the 3rd Qtr. this year.    I’m not going to bet on it.

I understand that George Bisso has had additional amputation surgery has a part of his advancing diabetes.  We wish him well.

As I mentioned in the last Chapter Meeting, I was reading the latest QST and was saddened to discover that W7JPH is a Silent Key.   For those of you that don’t follow ham radio call letters, W7JPH was Don Rose.   In years past Don was a regular at our Chapter meetings.  I remember him as the salesman for EEV.

National Public Radio elected to drop the word Radio from their name becoming simply NPR.  Now it’s Clear Channel Radios turn to drop the work ‘Radio’ from their name becoming Clear Channel Media and Entertainment.   So CCR is now CCME.   For the time being the firm will own some 850 Radio Stations….or perhaps Point-Multi-Point Aural Entertainment Facilities?

Some changes in who does what in our market ….Sam Roffe is leaving KBCS going over to KUOW.   Taking his place will be Buzz Anderson.

We may have something new to see during our annual Picnic on Vashon Island over at the 770/1090 Spread.    I’m sure that Arne Skoog or Tom McGinley will be happy to show us the newest 50,000 Watt transmitter at the CBS station, a new Nautel NX50.   Likely the smallest 50Kw transmitter in the area.

The latest radio ratings are out and KWRM came up with some huge number in the 12+ Race…a 12.  It’s been some time since a radio station has been in double digits.  Congrats to Mark Kaye and the crew over in Bellevue.   Some other observations – KING-FM’s ratings are higher since they went non-commercial.   Something you don’t see everyday…but KRWM’s stream showed up at #38.   Two Bellingham Stations had higher ratings than KVI in Seattle and little KNHC operated by Nathan Hale High School beats 50,000 Watt, AM,  KIXI.

For some time NAB, and others, have been pressing to get FM Radio receivers in Cellphones.  One of the first to say OK to the idea is Blackberry with a couple of their models.

The Mobile 500 Alliance previewed a new mobile TV receiver at the recent CES event in L.V.  The device will be tested, here in Seattle, later this year.

A legislator in W.V. is working on legislation that would make certain copper thefts a felony.  The penalty would be 1 to 10 years in prison or a $10,000 fine, or both.   Perhaps the Legislature in our state is more concerned in how to fill the budget hole than worry about copper theft?

Looks like a lot of money will be spent on political advertising this year.   Some estimates put the total at just under $5 Billion.  Almost $3 Billion will be going to broadcast TV.  Washington with now 10 Congressional Seats will become increasingly a target for some of those bucks.

The FCC is out with totals, as of the end of 2011 –

AM STATIONS 4766
FM COMMERCIAL 6542
FM EDUCATIONAL 3644
TOTAL RADIO STATIONS –  14,952

UHF COMMERCIAL TV 1027
VHF COMMERCIAL TV 360
UHF EDUCATIONAL TV 289
VHF EDUCATIONAL TV 107
TOTAL TV STATIONS 1,783

CLASS A UHF STATIONS 413
CLASS A VHF STATIONS 68
TOTAL 481

FM TRANSLATORS & BOOSTERS 6099
UHF TRANSLATORS 2997
VHF TRANSLATORS 1214
TOTAL 10,310

UHF LOW POWER TV 1644
VHF LOW POWER TV 403
TOTAL 2,047

LOW POWER FM 838 838

TOTAL BROADCAST STATIONS 30,411

 

As evidenced by some recent fines, the FCC does not care for stations recruiting policies.  In these cases the stations used only internet postings or word-of-mouth.  The take away from this is when your station has a position to fill – you’d be wise to advertise widely using a variety of means.

Pandora continues to grow as they recently reached the one-million session mark.  Traditional Radio is trying to play catch-up with the major ownerships involved.  Second to Pandora is Clear Channel with their iHeartRadio.  Interestingly the gym I go to is using Pandora over TV or local radio.

It’s not that we did not see this one coming, but the bankruptcy of Kodak certainly leaves a funny feeling to many of us that grew up with a number of Kodak products.   Gee they still say –Film at 11.   Unfortunately for the Rochester NY firm, they were late to see that film was being rapidly replaced with digital everything.  When that light finally went on, others were well down the track.

WOR-AM in NYC recently successfully tested a power saving modulation dependent carrier system on their 50Kw transmitter.   As AM’s struggle to survive in today’s world of radio, it’s likely that many of these high powered stations will be adopting this scheme.  The FCC is, apparently, allowing this use of this technology on a waiver basis.  The makers of high powered transmitters should like this as well as it takes a newer generation transmitter to operate it. My understanding is that Harris and Nautel both are offering it. Come to think about it, aren’t they the only two manufacturers to 50 Kw AM Transmitters?

Our nearest star has been mixing it up lately causing Hams to jump for joy…The impact of moving the MUF higher is felt on broadcasters too with FM stations skipping into markets where they are not licensed.   In one report a station in Florida was heard loud and clear in northern Virginia.    Several years ago I recall watching Channel 4, in Tacoma, get clobbered by a co-channel station from somewhere.   That’s not a problem now, of course, with KOMO, and others, now operating safely on UHF Channels.   Wonder what strong co-channel interference would do to ATSC Digital?

Here’s an invention, just in time for our post winter storm bout with potholes.  It’s a vehicle shock absorber that converts its motion into energy.  The devices, known as Gen-Shocks, look like a standard shock but have an electrical cord.    The rougher the road, the more power is produced.

If your station operates a Part 74 -2-way radio, IFB, ENG, RPU etc. system you probably know about narrow-banding and how this will impact your system.   The SBE as well as EIBASS has filed comments with the FCC dealing with this issue.   If you are not up to speed on this issue, I highly recommend you get that way, quickly.

Those of you that double managing a project will enjoy these definitions –

  • Contractor:    A gambler who never gets to shuffle, cut or deal!
  • Low Bidder:    A contractor who is wondering what he left out.
  • Project Manager:    The conductor of an orchestra in which every musician is in a different union.

 

And finally –

The following was sent to be by Buzz Anderson –

Perhaps one could have been drawn for the TV Remote Control…Before that- The ‘couch potato was forced to actually move to change channels…but then there were very few channels.
Til next month –

Clay Freinwald, K7CR, CPBE

 

Find, Post Jobs on SBE JobsOnline

February 6, 2012
By

Many broadcast engineering positions are regularly listed on SBE JobsOnline. Members who are out of work or looking to make a move, can benefit from the only comprehensive job-posting site dedicated solely to broadcast engineering and other technical or semi-technical positions.

The tool is a great benefit of membership as full position descriptions are only available to members of the SBE. A very helpful feature of the site allows users to search for job listings based on six different criteria you choose, including type of facility, job title, location, position level, supervisory responsibility and salary range.

Users can save search criteria and have emails automatically sent by SBE JobsOnline when a new job is posted that matches your search criteria.

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Don’t forget to check the Jobs tab on this site – postings are sporadic, but always relevant to this community!

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