June 20, 2001
Tech Note – 082
Sponsored by: Bloomfield & Associates
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~~ Reader Responses, Inquiries & Comments
- Surprise! None for this issue
- By: Roy Trumbull
- I don’t wear an expert badge on PSIP (Program
System Information Protocol). I’ve run into a few things over
the last three years you might find interesting. We had three different
receiver manufacturers come out to check off-air signals in San
Francisco. Two of them recorded samples with CD burners and took
them back to the lab.
- The problem started with the DVD. It had a
standard and a few companies making players were foolish enough
to follow it to the letter. The authoring systems observed no such
constraints and some DVDs flat out wouldn’t play.
- In our case we were the only station in town
running PSIP and the box from one major company when tuned to our
signal would lose its mind. It was a problem in our encoder that
was fixed in the next software release. Some receivers, though,
worked without trouble.
- The nut of the matter is that a standard doesn’t
mean that everyone gets the same meaning when they read it. In the
case of the DVD players that would read “bad” DVDs and the ATSC
receivers that worked regardless, the manufacturers had built a
lot of forgiveness into their code and didn’t take the utterances
of the authoring/encoding systems as definitive.
- When you add full PSIP and data casting, the
receivers must operate closer to the standard. That means the designers
have to get together in a room and thrash it out. Not just PSIP,
but table values buried at the system level need to be looked at.
- We analyzed a number of signals off-air and
found that the signal encoders weren’t modeling the receiver buffers
properly and would cause them to overflow. I never got an answer
before I retired as to what to tweak to get our encoder on track.
Another station, that was out by a mile, switched to another brand;
they never got an answer.
- I had two interesting calls from Silicon Gulch
engineers reading our signal. One questioned certain values set
at the system level and I sent him to the encoder company. I talked
to them also and they had their reasons for doing what they did.
The other was a major mystery. Their equipment was seeing a PID
that we didn’t even have defined, pop up every five minutes or so
with an encryption flag set. My thought was that there might be
some unanticipated interactions between the various encoding tasks
or confusion at the mux. Perhaps error correction at the receiver
can create phony signals.
- In a nutshell, this was all rushed to market
without a lot of coordination between those encoding and those decoding
and now we must sort it out.
- Another thing I found, while digging through
the setup tables was that the number of horizontal elements per
line in an SD encoder wasn’t what I expected it to be. It was close.
The confession that I got from the encoder people was that their
system had been developed for DVB and adapted to ATSC. I suspect
there’s a lot of warmed over DVB gear on the market.
- Subject: Custom panel
- From: Sue Clark
- How many times have you tried to lay out a
custom panel with plugs, jacks, etc., to find that it was a very
tedious, time consuming job? To help those really great technical
folks who have to do this kind of thing, we have devised a custom
panel program that will take much of the stress, time and trouble
out of the job. This will help you get exactly what you want and
not what someone will try to sell you.
- What happens if you have a remote truck or
ENG van with limited space where you need to put all of your jacks
in a very confined area? No one will probably have an off-the-shelf
2 RU (rack unit), or whatever, plate that will meet what you needs.
This template program will help you design what it will take to
get the job done. Use of this design tool is, of course, free. Should
you decide you don’t want to go through the trouble of fabricating
your custom designed panel yourself, we’d appreciate the opportunity
to bid in it.
- The program has more
than 50 connectors to choose from and gives you the versatility
to design anything from a 1RU panel to a custom 25 x 50" panel.
Whether you are building a facility, or a mobile truck, this program
can be very handy. By the way, should you have a connector
that is not listed, let us know and we’ll do an update so that all
- Use it in the best of health and let us know
how you like it. You can find it at:
- Sue Clark, President – Clark Wire and Cable.
- (Ed Note: Sue tells us that she will
give a 3% discount on all orders of wire and/or other products her
company manufactures to subscribers of the Tech-Notes. This offer
may not be combined with any other discounts. She will verify your
subscription status with us.)
- Subject: SID
- By: Larry Bloomfield
- SID isn’t an uncle stashed away in a Florida
retirement home; it’s the Society for Information Display, who recently
concluded their annual conference, symposium and exhibition in San
Jose, California. Normally just “another trade show” isn’t something
to spend a lot of time and space relating to our busy readers, but
this one is an exception.
- The biggest stumbling block in public acceptance
of digital television, not to mention digital television’s big enhancement
– HIGH DEFINITION, is the cost of the display devices, with or without
tuners. SID, the showcase where display technology is put out for
all to see, offered attendees a great deal of promise in advanced
design and significantly lower cost to manufacture – ultimately
to the consumer.
- There were many prototypes of organic light-emitting-diode
(OLED) displays and organic electroluminescent (OEL) displays. These
devices work on much the same electro-chemical principal as does
the common firefly except they have to be electrically stimulated,
operate much faster and are considerably brighter.
- What may have a major effect on consumer products
sooner than OLEDs, though, are the many LCDs that are fast and bright
enough to be attractive as television displays. Most of the major
manufacturers had significant offerings. According to a SID spokes
person, the rapid drop in prices for LCD panels is a critical element
that will soon make LCD-TV sets - as well as computer monitors -
affordable, although they will still be premium products.
- Plasma display panels (PDPs) are still wearing
their high prices like the subject in Samuel Taylor Coleridge's
“Rhyme of the Ancient Mariner” (the albatross), but that didn't
keep them from being nearly ubiquitous on the show floor. PDPs sell
well for applications where price is not critical, such as trade-floor,
in-store advertising, and for public information screens. It's was
interesting to see how many PDPs that were used to advertise other
- Price was on everybody's mind. In his keynote
address, Fujitsu Hitachi Plasma (FHP) Display's Yoshito Tsunoda,
presented his company's strategy of producing smaller - 32- and
37-inch - high-definition PDPs that would permit the manufacture
of more affordable TV sets for the Japanese and European markets.
However, at a projected price of $4500 in Japan later this year,
it is doubtful that the price will be low enough to move many units.
Costs and prices aside, the PDPs on display were impressive.
- A new generation
of microdisplays for “near-the-eye” applications were looking better
than ever and frequently consuming much less power. Microdisplays
for rear projection (RP) were the other story, with a three Displaytech
chip device will be ready for sale this summer in an electronics
store near you.
- There is general
agreement that to get RP-HDTV sets cheap enough to really take off,
designers have to use RP engines with a single LCOS imager producing
field-sequential color (FSC). (Shades of the old CBS color wheel
–for give the anology) The problem is that chips able to produce
good-quality images in an FSC configuration have either been non-existent
or in very short supply. There will be a definite push in that direction,
though. Smaller sizes, perfect registration, no bulky deflection
coils, high voltage power supplies or heaver than life bottles containing
phosphors at one end. Philips may have solved the problem with its
engazeTM chip and a clever scrolling-color projection-engine design.
The engines were being shown in 64- and 36-inch HDTV sets, and looked
- JVC, with
its D-ILA chip - an LCOS variant that can tolerate high optical
input power - announced they welcomed a face off against TI's DMD
chip for high-brightness, high-end projection applications. JVC's
2048x1536 chip has full compatibility with 1080 lines of high-end
HDTV, the company said, and JVC is taking aim at digital-cinema
applications - until now the undisputed province of DMD. Watch out
- SID is not for everyone, but it doesn’t hurt
to track what SID has to offer, especially if you are a manufacturer
looking for the best technology, at the lost cost. It will be most
interesting to see what SID will have to offer next May when they
will hold court in Boston at the Hynes Convention Center.
For more information, visit their web site: www.sid.org.
- Subject: Cable looking for shortcuts
- (Ed Note: This article is from a variety
- Sources say that operators have given up on
higher-end digital set top boxes (STB) for their short-term interactive-television
(ITV) strategies. But somewhere down the road, they will have to
add higher-end functionality or face fierce competition and shrinking
- Another key factor in backing away from the
more sophisticated STBs was the growing conviction that customers
didn't want or were not ready for some of the more elaborate ITV
services, whether it was the Web, T-commerce, e-mail services or
other applications. Instead, cable operators now believe their subscribers
simply want better television viewing. Cable operators believe what
people really seemed to enjoy is fuller expressions of entertainment,
rather than trying to simply bring Web sites and the Internet to
the television set, and that means simpler applications could be
in place without new equipment and expensive gadgets.
- Cable operators also believe in a prompt return
on their investment and that means they’ll push entertainment applications
like video on demand (VOD). Speaking about VOD, one cable president
and CEO recently said, during the National Cable Television Association
show in Chicago, ''It's a tremendous service. We're getting a significant
amount of incremental revenue, cash flow. It's less than a three-year
- With the speed of technological change, operators
want to ''go with a system now that they'll never have to change
out.'' If the cable network is properly configured, an STB with
enough processing power and memory will be able to handle whatever
applications become popular. The one big issue cable operators avoid
at nearly all costs is compatibility. Despite long elapsed FCC timetables,
the cable industry continues to muddle down the road of mediatory
when it comes to giving the public systems where they can plug in
a “standard” set top box that will work anywhere.
- The only ray of hope to all this is for the
FCC to set standards that all can live with, then let the marketplace
create the innovations within that framework for whatever competitive
edge each thinks it can achieve. It is distasteful for the government
to step into anything, but when the private sector can’t get off
their duffs and do the job, someone has to. So far, the private
sector has fail miserably in coming up with a standard that all
can live with.
- One major issue seems to be that cable operators
are fearful of loosing control, but there is enough technology out
there that will permit them to retain control in those areas that
are important. STB is certainly not one of them, but an adjunct
the STB could do the trick. One such device is the smart card. STBs
can be programmed by the cable operators remotely and with a respectable
condition access system that interfaces with a subscriber management
system, the viewer will only be able to watch want the cable operator
grants access to anyway. So what’s to worry?
- In all fairness, the cable companies have a
significant investment in STBs and are not in any hurry to send
them to the STB graveyard in favor of privately owned devices. In
truth, nobody really knows what's going to generate revenue besides
VOD these days. There are a lot of small ideas, like instant messaging
or a basic e-mail service or things along those lines-which will
require a keyboard in the living room-but VOD is it for now.
- But there is a big risk involved in a short-term
strategy by cable operators, box makers warn. ''In the short term,
they're meeting their objectives, so you may hear some complacency
toward launching additional applications. The modeling done says
that that sustains for about another year or two, and then they've
got to find news ways of incremental growth for them to keeping
doing what they're doing.
- One function that operators are likely to regret
losing in their decision to stick with lower-end digital boxes is
the increasingly attractive and viewer-friendly personal video recorder
(PVR). Motorola is building PVR capacity into its new 5200, as are
S-A, Pioneer and other manufacturers. The payoff should be obvious.
If TiVo can charge $10 a month for its PVR service, then cable operators
could provide the same service through a higher-end STB and pocket
that money immediately. That would be a great return, not an ephemeral
or an elusive revenue stream. Why not sell the boxes then charge
for the additional features much like the phone company does for
call forwarding, caller ID etc.
- One other thing cable operators should wake
up to is the broadcast industry is in the process of moving to digital,
like it or not. Although the FCC says they only have to carry one
or the other (analog or digital) of the two signals, it wouldn’t
surprise many if the cable operators were to wake up one day and
find that all they were getting from the broadcasters was a digital
signal. What now maw? They certainly have the bandwidth, in
most cases, to offer their subscribers both signals and stop the
- Cable operators shouldn't take the risk of
compromising future revenue because of today's economic squeeze.
Everyone's worried about their books; about how to meet their quarter.
With this kind of “Bean Counter” attitude and thinking, they’re
bound to fail. There is little doubt that three years from now,
they may say, Had I invested in this or that, I'd be better off
now. Come on guys, wake up and smell the roses!
- Subject: Intel Makes an Ultra-Tiny Chip
- From a story by John Markoff
- Computer researchers have fashioned infinitesimally
tiny electronic switches using conventional chip making equipment,
demonstrating that the semiconductor industry will be able to continue
shrinking its basic building blocks at a torrid pace at least until
the end of this decade.
- At a technical conference recently held in
Kyoto, Japan, a scientist for the Intel Corporation reported that
the company had successfully made a handful of silicon transistors
no more than 70 to 80 atoms wide and 3 atoms thick. They are capable
of switching on and off 1.5 trillion times a second, making them
the world's fastest silicon transistor.
- Although the Lilliputian switches do not represent
the smallest experimental transistors yet invented, they are being
hailed by the industry as a watershed because they were made using
standard commercial techniques and the same materials used in today's
microprocessors and memory chips.
- Researchers have once again found a way around
technical barriers that might have slowed or stopped the phenomenal
“four-decade march” that has led to the speed and power of today's
- Although semiconductor engineers can now predict
with great accuracy the amount of computing power that the transistor
advance will bring with it by 2007, computer scientists cautioned
that speculating about labor-saving applications or dazzling technological
consequences can be more risky.
- While the semiconductor manufacturing process
underlying the modern microchip continues to improve steadily, specific
new applications are frequently unpredictable. Some of the most
prominent advances of recent years — for example the electronic
wristwatch, the personal computer and the Internet — all largely
came as surprises to experts.
- The research will make make possible computer
processor chips with as many as one billion transistors and 20 gigahertz
speeds. That is more than 23 times the number of transistors used
in Intel's current state-of-the-art Pentium 4 microprocessor, which
has 42 million transistors and is capable of executing 1.7 billion
instructions a second.
- It will also make possible a generation of
fingernail-sized memory chips that can each store four billion bits
of data — more than 333 copies of "Moby Dick."
- Industry researchers said that shrinking
the transistor size was a technical tour de force.
- Moreover, the new chips will require
less than one volt of electricity — perhaps less than half of today's
Intel microprocessors — making it likely that within half a decade
the world's fastest processors will be portable and perhaps even
- The semiconductor industry's technical road
map has generally forecast that integrated circuits will stay on
their doubling path until 2014. But doubters have continued to emerge,
suggesting either that there will be insurmountable technical obstacles
or that at some point the cost of each new generation of semiconductor
factory will soar astronomically.
- It is important to note these advancements,
which on occasion, seem to antiquate the computer based equipment
currently used by broadcasters. It is nice, however to take
a look at what the future holds.
- Subject: First the VCR – now the DVD recorder.
- By: Larry Bloomfield
- Many of us have been told that the ¾ inch Umatic
format was never intended for broadcasting. The same thing
was said about the SVHS format, but someone failed to tell broadcasters.
There’s many a station that continues to use both. For these reasons,
especially with the look to digital in the not too distant future,
economical ways of recording digital signals should be on the minds
of most engineers.
- There is no earthly reason why a DVD carousel
player hooked up with a respectable automation system couldn’t do
the job quite well. Those bits could care less where they’re coming
from, as long as they’re all there and the transport media has the
bandwidth capacity to get them on the air.
- To that end, Panasonic has recently announces
its second-generation DVD video recorder, which will be available
in stores this October. They say this unique recorder “allows consumers
to digitally record high-quality, MPEG2 video on DVD-RAM or DVD-R
discs. DVD-R discs can be played back in most DVD players,” and
at a manufacturer's suggested retail price (MSRP) of $1499.95. Panasonic’s
first DVD recorder was more than twice that price.
- Panasonic says their new unit “was engineered
to take full advantage of the DVD-RAM format's capabilities, such
as simultaneous playback and recording. DVD-RAM provides a single
format for computer and video-based applications.” I guess
the guys in their broadcast group would have had a fit if they’d
added “broadcast” to the possible users. “With its vast storage
capacity, incredible speed, random access memory, exceptional picture
and sound quality, and writing/erasing/rewriting capability,” they
continue, “DVD-RAM is highly adaptive to the expanding digital media
- It would be interesting to know of any broadcasters
who have the nerve to try one of these new Panasonic DVD recorders.
Does a super-fast data transfer rate of 22.16 Mbps, hold any lure
for the brave at heart?
- One of the issues we had at a station where
I worked was the large storage space required for legacy video tapes.
Panasonic says that in addition to recording new video content,
their unit also allows the “user” (I took out the word consumer)
“to transfer their favorite VHS tape recordings to space-saving
discs.” Sounds like a solution to me.
- Their DVD video recorder offers another important
advantage: it actually enhances old videos, thanks to a built-in
noise reduction processes, input time-base corrector, 3D Y/C separation
and 3D DNR, the transferred video is capable of having better picture
quality than the analog original.” That’s a bit much, but
- Subject: Streaming Media Ad Market $3Billion
- From: Streaming Media Ad Market $3B By 2005
By Martin Stone, Newsbytes
- Rapid growth of home broadband Web access will
push spending on streaming media advertising to $3.1 billion by
2005, according to a study released this week.
- Researchers at the Yankee Group pegged the
2000 market at $44 million. The analysts said that widespread adoption
of broadband access will generate new technologies that produce
streaming media-enabled ads bearing product information and on-demand
- Yankee Group analyst Steve Vonder Haar said
surfers making major purchases will have access to videos providing
information on cars, computers, vacations, and other big-ticket
- "This is multimedia content that helps
people get things done. It represents how the Web is best suited
for delivering video with a purpose rather than video for couch
potatoes," he said in a statement.
- The Yankee Group said marketers should prepare
for the streaming media explosion by experimenting with online multimedia
promotion to find the best way to utilize promotional videos.
Subject: States eye Dish Tax
- Not only did Florida eye a tax on dishes, but
Gov. Jeb Bush signed into law a bill imposing a new telecommunications
sales tax on providers of telephone, cable and satellite services.
- The new Florida law imposes a 10.8 percent
tax rate on satellite providers. With the dish tax proceeds, 63.5
percent would be retained by the state. The balance of the collected
tax would be distributed to local municipalities.
- The 1996 Telecommunications Act contains an
exemption for the satellite television industry from local taxes
but not from state taxes. The cable rate at the state level is 6.8
percent. Cable operators will also pay an additional 4.9-5.1 percent
to local governments, depending on whether or not a cable operator
pays "permit fees" to a respective local jurisdiction.
- There was no comment from the governor's office
in Tallahassee on the bill signing. A spokesperson said the governor's
office typically doesn't comment on routine bill signings at the
- After the bill was signed, some were questioning
the need to tax satellite TV when it provides much-needed competition
to cable. Others suggested that the new tax rates could be a violation
of federal law in that they differ between satellite and cable,
irrespective of what is paid to localities.
- James Ashurst, spokesman for the Satellite
Broadcasting and Communications Association, said, "The SBCA
still has major concerns over the structure of the bill, and we
will be watching to see how the tax works in the marketplace and
how it impacts consumers. We are certain that our member companies
that stand to be impacted by the bill, will be watching as well."
- The tax becomes effective Oct. 1.
- With the Florida tax in the bag, another state
is considering a tax on satellite TV.
- Lawmakers in North Carolina recently introduced
the 2001-2003 state budget, which includes a provision to equalize
the taxation of satellite and cable. According to the Satellite
Broadcasting and Communications Association, a 6 percent tax would
be charged on gross receipts from the sale of cable and satellite
TV services across the state under the legislation.
- Currently, satellite TV is not taxed by the
state, while cable is subject to local taxes.
- In addition, a provision in the bill would
allow cable operators to be credited for any local franchise tax
they pay. That would allow a cable provider that pays a five percent
local franchise tax to be charged a one percent state tax. Satellite
would always remain at 6 percent sales tax.
- North Carolina is a significant state for satellite
TV, with more than 800,000 subscribers getting service through a
dish, according to SkyTRENDS state-by-state data for first quarter
2001. North Carolina ranks fourth among all states in the number
of satellite TV subscribers, behind Florida, California and Texas.
Those three states each have more than 1 million DTH subscribers.
- Does any of this really surprise you?
Perhaps California could bail themselves out of their electrical
crunch with such a tax.
FCC's Powell Cable must lead digital transition
By Junko Yoshida, with additional reporting by freelance writer David
- Chicago - Sounding a warning that the cable
industry should help, not hinder, the deployment of broadband digital
communications, Federal Communications Commission Chairman Michael
Powell told the cable industry's annual convention that its members
could invite renewed federal regulation if they squander their technology
- Speaking last week at the National Cable &
Telecommunications Association (NCTA) convention here, Powell urged
members to "find a way to become a productive partner to aid
this transition-rather than its obstacle." His comments also
reflected concern over the resistance of companies in the industry
to carrying terrestrial digital broadcasts over their systems.
- The NCTA filed new comments to the FCC on June
11 reiterating its opposition to so-called "dual must-carry"
requirements that would compel cable operators to carry both analog
and digital TV signals until the digital transition is completed.
In its comments, NCTA stressed that the FCC lacks the statutory
authority to impose dual must-carry rules and that the rules themselves
would be unconstitutional.
- "As a matter of policy, it would be a
mistake to allow dual must-carry during the [digital] transition
to be the driver of the ultimate outcome of the provision of digital
programming to cable customers," NCTA said in its comments.
"As a matter of law, neither the  Communications Act
nor the Constitution allows it."
- The FCC tentatively ruled in January that imposing
digital must-carry rules would be unconstitutional, but pressed
the broadcast and cable industries to continue seeking a compromise.
- As new elements flow into cable's coaxial pipeline,
including high-speed data, telephony and the expansion of interactive
television, noted Powell, "The hopes and fears [for broadband
service] are acute. . . . You will contribute to the environment
in which it exists."
- Or else.
- He said, "Don't deny programmers the fair
opportunity to reach consumers. . . .Consumer value must always
remain high with the products and services you deliver."
- Although Powell praised the cable industry
for its leadership in the adoption of a variety of digital consumer
services, his cautionary tone was in marked contrast to his appearance
in April at the convention of the National Association of Broadcasters.
There, Powell assured broadcasters of his preference for laissez-faire
regulatory oversight, and he seconded NAB chairman Edward Fritts'
enthusiasm for "free over-the-air broadcasting."
- Powell's warnings last week followed the NCTA's
comments to the FCC on the proposed must-carry provisions. The NCTA-already
well-advanced in the digital transition-is concerned that cable
companies might be required to tie up significant amounts of broadband
spectrum helping broadcasters phase over from analog to digital.
Such a requirement might include the necessity of carrying TV programs
simultaneously in both analog and digital forms, drastically reducing
spectrum available for multiple TV channels and other broadband
services like telephony and high-speed Internet access.
- Cable operators have also argued against requirements
that they present HDTV programs exclusively in the spectrum-intensive
high-definition format, rather than in standard format.
- Powell conceded that the cable industry's technology
and infrastructure have forged a "clear competitive edge"
over both terrestrial broadcast TV and digital broadcast satellite
(DBS). He said that cable has achieved its "most favorable
regulatory environment in decades." But he noted that in the
past, the cable industry has squandered such advantages. "It's
largely in the hands of the industry to maintain favorable conditions."
- The subtext of those warnings lies in past
accusations, brought before the FCC, of price gouging and poor customer
service by cable companies. Striking a populist chord, Powell said
that a "grateful nation" welcomes the speed of cable's
move into broadband telecommunications, but that the country needs
this technological leap to reach consumers at "affordable rates."
And he called on the cable industry to compete with traditional
telephone companies to "enlarge consumer choice in telephone
services," stressing the importance of competition over regulation.
- Among all the aspects of broadband cable, the
possibility of competing for telephone customers and reducing the
average family's phone bill gained the most favor with the FCC chief.
- Meanwhile, in a speech at the NCTA last week,
new Senate Majority Leader Tom Daschle (D-S.D.) was similarly populist,
but significantly more accommodating toward his hosts. He characterized
broadband cable services as an ideal medium, allowing the participation
of the largest number of Americans.
- In terms that signaled impatience with any
provision-including must-carry-that might slow the transition to
widespread digital broadband access, Daschle said, "Technology
is an unstoppable force. . . . Government can get in the way to
impede the inevitable, or it can participate in democratic change."
- Broadband to all
- Sending his own message to broadcasters, DBS
providers, NCTA members and the FCC, Daschle insisted, "Working
together is not an option. It is a requirement." Clearly signaling
his preference for cable broadband as the technology of choice,
Daschle said, "As part of our Democratic [Party] technology
agenda, we are setting about our goal of delivering broadband to
every American by the end of the decade."
- Although eschewing any such grand designs,
Powell, in his turn, agreed that cable-once viewed as "the
toad of the communications sector," a "dangerous upstart"
shunned by Wall Street investors-has been the benefactor of a "digital
kiss" that has turned it into a prince.
- "Many platforms and technologies are chasing
the broadband rainbow," he said, but cable is today the leader.
He expressed his hope that-without need of substantial oversight
by the FCC-the cable industry will expand the country's "rich
mosaic of interests." He called this "a challenge worthy
of a prince."
- Subject: 2001-2003 US TV Station HDTV Product
- From: Des Chaskelson
- Data for these reports was derived from an
extensive survey of US television stations from November 2000 through
April 2001. Product Reports include a written category analysis,
plus quantitative summary tables and charts showing installed base
and annual purchases (units and dollars) fro SD and HD, 2001-2003,
brand shares, average prices, incidence of purchase etc. Product
Reports are available for 23 product categories -- view table of
contents online at:
- (ED Note-- Subscribers to Tech Notes
Eligible for a 10% Discount!! --)
- Parting Shots
- By Larry Bloomfield
- Keep an eye out for an interesting article
about a filter built by Dielectric for WKBD-TV in Detroit. Seems
that the WKBD folks got a channel 14 assignment for the digital
outlet and there are 2-way radio users less than a ½ mile a ways
at less than 25 KHz down form their 470 MHz; a little too cozy for
comfort. Dielectric and the other folks involved did a nice job
of addressing and solving the problem.
- Take a look at the web site under Educational
Opportunities. Santa Fe Workshops, based out of Chicago, IL is offering
Tech-Note subscribers a discount. Check it out.
- I hear that Sierra Video has a new HDTV switcher
that might be worth a look at.
- Be glad you’re a subscriber. It will be a few
days before this gets posted on the web site.
- That’s it for this time; let’s go to press!
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