Tag Archives: VHF

Jan
10

Posted in Antennas Direct, Installation | Comments Off

ClearStream 5 Antenna Tested and Approved by TV Technology

An editor of TV Technology, James E. O’Neal describes a story that is similar to many of our customers. He was looking for a high power, easy to assemble antenna that would provide clear reception for channels that broadcast in high VHF that may be more than 65+ miles away.

Our ClearStream 5 High Gain VHF Antenna was up to O’Neal’s challenge in his country home outside of Washington DC. Here is how he describes his experience from the antenna installation to performance:

The C5 consists of two pieces—a more or less rectangular “loop” with a small box at the bottom sporting an output connector. The other member is similar to the “loop” but is in the form of a sideways “H” affixed to a mesh element that is obviously a reflector, but one that seems more in keeping with what you’d find on a UHF bowtie rig. The hardware supplied consisted of screws, washers, spacers, and U-bolts for mast mounting. There was also a V/U combiner (diplexer) in a nice weatherproof enclosure.

IN USE

ClearStream 5 Featured on TV Technology

I parked it on the den floor, and with just a little tweaking and shimming, the game reappeared—solid as a rock. The height AGL was now only about three feet. This is one remarkable antenna.

Rather than retreat to the attic, I left the unit on the floor and viewed the remainder of the game. When it ended (my college team won), I uncabled things and journeyed to the attic hatchway. On a hunch, I elected not to take the C5 apart, and found that it easily fit through the 23×29-inch hatch opening.

The C5 is now mounted alongside my bow-tie array and performs very nicely.

Read the full article about the ClearStream 5 from TVTechnology.com.
Thanks for the glowing review Mr. O’Neal. We hope you enjoy the C5 and those VHF channels for years to come.
Nov
10

Posted in Antennas Direct, Ask the Expert | Comments

Help Receiving VHF Television Channels

I’ve installed the Clearstream2 antenna and aimed toward the broadcast towers. I receive most of the local stations except two. I’m most concerned about the local ABC affiliate. I should be able to receive its signal. According to their site they boosted their signal and range a few months ago to the maximum range & signal strength allowed by the FCC. What can I do? From Goody in Mustang, Oklahoma

Hi Goody,

From www.antennapoint.com you can tell what channels are available in your area and what frequency they are on (see screen shot below). It looks like KOCO is your ABC affiliate and is running in high VHF. VHF television channels are numbered 2 – 13; UHF channels are numbered 14 – 83.  Although the C2 has limited VHF capabilities it just isn’t enough to adequately receive the weak stations in your area. We would recommend adding a VHF antenna like the ClearStream 5 that comes with the UHF VHF combiner that will allow both antennas to be coupled together on a single coax.

Mustang, OK - Antenna Point

Oct
14

Posted in Industry Update | Comments Off

Attention Cincinnati, Ohio Viewers – WCPO Channel 9 is Making Improvements for Viewers

According to www.cincinnati.com WCOP Channel 9, an ABC affiliate, is working on switching from Channel 10 to Channel 22. This is good news for some people who have reported not being able to receive WCOP reception since the digital transition.

The poor reception experienced by many Cincinnati, Ohio viewers is due to the fact that WCOP was operating on a VHF signal. VHF does not travel as far or penetrate buildings as well as UHF stations.

“The new UHF signal will be significantly more powerful, and should remedy the reception problems WCPO has experienced since the digital transition last year,” says Bill Fee, Channel 9 vice president and general manager.  “November sweeps may be an inconvenient time to install the new antenna, but we must complete this project before cold weather sets in, which would delay the project until spring.”  The station already has installed a new generator and new wiring for a new UHF transmitter due this week, Fee says.

Check out the full article about WCPO here.

Kudos to WCPO for updating their system to accommodate more viewers to a high definition Channel 9! WCPO really is “on your side!”

Now that WCPO is going to UHF, it might be time for Cincinnati, Ohio viewers to upgrade to a high power UHF antenna. We recommend the ClearStream2 that can be used as an indoor or outdoor antenna. Or view UHF antennas on our online store!

May
15

Posted in Industry Update, Uncategorized | Comments

DTV station wises up, decides to ditch VHF

wvue

For years, we have been warning about the problems with DTV broadcasting on VHF; lower fractional bandwidth, increased interference from noise, & adjacent markets and the reluctance of customers to install significantly larger, performance compromised combo UHF/VHF antennas. Making matters even worse, some VHF stations have cut their ERP by 95% making a difficult situation impossible. Our predictions were that a huge percentage of the country will lose VHF DTV reception. Turns out the mess is far, far worse than anyone could have predicted. Nothing like launching an exciting new form of broadcasting on interference riddled, bandwidth challenged frequency assignments with tiny transmitters, right?

Much love to the station engineer who alerted us to this gem which lays it out bare. Its amazing stuff, and in case you don’t what to read the whole thing, here are the essential parts from the VHF broadcaster who has given up on a losing effort:

“Viewers report that they formerly received WVUE’s digital signal on channel 29 but have not been able to receive the Station’s digital signal on channel 8. The complaints that the Station has received are from viewers residing in all parts of the New Orleans market and are not limited to particular geographic areas or neighborhoods. In fact, several complaints are from viewers residing within a few miles of WVUE’s transmitter site. Station personnel have visited the homes of several disenfranchised viewers in an attempt to resolve the reception quality issues but were unable to receive the Station’s signal on the viewers’ digital tuners.

Louisiana Media respectfully submits that the current limitations on WVUE’s operations, and the concomitant loss of service to former viewers, are untenable from both a public service and a competitive perspective. Therefore, Louisiana Media proposes to restore digital service on WVUE’s pre-transition digital facilities on channel 29 at its previously authorized ERP of 660 kW. The higher-power channel 29 facilities will enable WVUE to reach viewers who received the Station’s digital signal prior to the Station’s early transition and who currently are unable to receive service on digital channel 8 due to the poor propagation characteristics of the assigned facilities.

Prompted by the many complaints WVUE has received, Louisiana Media performed a study comparing the signal strength of its assigned digital channel 8 facility to the signal strength of the higher power digital facilities of other stations in the market. Based on the study and the significant number and distribution of viewer complaints, Louisiana Media has determined that the effective radiated power of WVUE’s channel 8 digital facilities is not sufficient for the signal to be received by a material number of viewers located within its {viewing area}

The assumption was that ATSC (digital) broadcasting was up to 10X more efficient than analog, that transmitter power could be cut, electric bills would be slashed, all while maintaining the same coverage area. Yes, ATSC does offer some efficiencies, but not nearly enough to make up for the dramatic reduction in transmitting power that we’re seeing across the country. Finally, we have the FCC, the NAB and the broadcasting community beginning to acknowledge, just because its digital doesn’t mean you can reduce power 90% and have the same coverage area.

The good news is while we are waiting for the remaining 400 or so VHF DTV broadcasters to increase power and/or move to the UHF band, we will soon be shipping the Clearstream 5 high band VHF antenna. The C5 will be the most powerful compact VHF antenna ever offered, and can makeup on the receive side much of what is being lost on the broadcast side. The C5 will ship late June and retail for $119. – Thank me later

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