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post #10711 of 10716 Old 09-11-2017, 07:50 AM
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More Beam Width, Please!!!!

I see a 09/05/17 KMAX Construction Permit Modification Application to raise power to full 1000 kW ERP for the Repack move to channel 24. However, the beam width of the listed antenna, Dielectric TFU-28GTH/VP-R O4A, is still overly narrow:

https://enterpriseefiling.fcc.gov/da...20040&goBack=N

A better choice would be TFU-24GTH or, better yet, TFU-22GTH. I receive KGO, over 120 miles away, NOT because of high power, but because of WIDE beam width!!! I will take wider beam width over higher power ANY DAY!!! The same goes for the wide beam widths of KVIE and KXTV which are the last viewable stations during a bad temperature inversion.
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post #10712 of 10716 Old 10-02-2017, 05:59 PM
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KKPX and Musical Channels

(This is a duplicate post from the SF OTA thread because it affects Sacramento too.)

There's been a flurry of filing activity today centered on KKPX and its channel 14 problem.

KKPX filed a nearly complete application for channel 33. KSPX ION Sacramento filed for channel 21 in place of channel 22. I thought this was strange until I saw it mentioned in the KSPX filing that KTXL will move from channel 33 to 22. KTXL filed for channel 22 this evening. I'm not enthused with the 1.5 degree beam tilt.

KDJT-CD Salinas which was staying on 33 filed for channel 26.

Four stations had to move around to solve the KKPX channel 14 problem. KKPX now has a clear channel on 33.

Five Sacramento stations, KSPX, KTXL, KQCA, KMAX, KOVR and KTFK will now occupy channels 21-26 respectively.

Chuck

Last edited by Calaveras; 10-02-2017 at 07:07 PM.
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post #10713 of 10716 Old 10-03-2017, 01:25 AM
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I do not see why Robert L. Karlinsey, KTXL Director of Technology, <Bob.Karlinsey@Fox40.com> keeps specifiying a 1.5 degree beam tilt in the FCC applications. The interference analysis uses a beam tilt of only 0.8 degrees for its calculations. That means a 0.8 beam tilt meets FCC interference requirements. Mr. Karlinsey is NOT a broadcast engineer. His previous KTXL position was Network Administrator, i.e. a computer LAN network and communications support specialist. Dielectric has provided him with SAMPLE antenna data that uses a 1.5 beam tilt, and I am not sure that Mr. Karlinsey even knows that Dielectric builds the antenna to the CUSTOMER's beam tilt specification, i.e. 0.5, 0.8, 0.75, or whatever. The antenna specified for channel 33 was a Dielectric TFU-22ETT/VP-R 3BP250SP. For channel 22, the antenna is a Dielectric TFU-19ETT/VP-R 4C170 which has a wider beam width over the TFU-22ETT. With a 0.5 or 0.8 beam tilt, that would be great. I hope to heck somebody at KTXL knows what the heck they are doing!!!
--------------------------------
KTXL_22_Antenna_Information.pdf
https://enterpriseefiling.fcc.gov/da...5ed378052e4109
Dielectric sample data provided for the Dielectric TFU-19ETT/VP-R 4C170 antenna elevation curve with 1.5 degree beam tilt.
--------------------------------
KTXL_22_TVStudy_Analysis.pdf
https://enterpriseefiling.fcc.gov/da...5ed3818c664134
INTERFERENCE ANALYSIS FOR KTXL
CHANNEL 22
(CONSIDERING KSPX-TV MOVE TO CHANNEL 21)
Record parameters as studied:
Channel: D22
Latitude: 38 16 18.00 N (NAD83)
Longitude: 121 30 22.00 W
Height AMSL: 601.6 m
HAAT: 599.0 m
Peak ERP: 1000 kW
Antenna: DIE-TFU-19ETT/VP-R 4C170 345.0 deg
Elev Pattrn: Generic
Elec Tilt: 0.8

Last edited by Smoke_signal; 10-03-2017 at 01:54 AM.
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post #10714 of 10716 Old 10-10-2017, 10:58 PM
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Quote:
Originally Posted by Smoke_signal View Post
I do not see why Robert L. Karlinsey, KTXL Director of Technology, <Bob.Karlinsey@Fox40.com> keeps specifiying a 1.5 degree beam tilt in the FCC applications. The interference analysis uses a beam tilt of only 0.8 degrees for its calculations. That means a 0.8 beam tilt meets FCC interference requirements. Mr. Karlinsey is NOT a broadcast engineer. His previous KTXL position was Network Administrator, i.e. a computer LAN network and communications support specialist. Dielectric has provided him with SAMPLE antenna data that uses a 1.5 beam tilt, and I am not sure that Mr. Karlinsey even knows that Dielectric builds the antenna to the CUSTOMER's beam tilt specification, i.e. 0.5, 0.8, 0.75, or whatever. The antenna specified for channel 33 was a Dielectric TFU-22ETT/VP-R 3BP250SP. For channel 22, the antenna is a Dielectric TFU-19ETT/VP-R 4C170 which has a wider beam width over the TFU-22ETT. With a 0.5 or 0.8 beam tilt, that would be great. I hope to heck somebody at KTXL knows what the heck they are doing!!!
--------------------------------
KTXL_22_Antenna_Information.pdf
https://enterpriseefiling.fcc.gov/da...5ed378052e4109
Dielectric sample data provided for the Dielectric TFU-19ETT/VP-R 4C170 antenna elevation curve with 1.5 degree beam tilt.
--------------------------------
KTXL_22_TVStudy_Analysis.pdf
https://enterpriseefiling.fcc.gov/da...5ed3818c664134
INTERFERENCE ANALYSIS FOR KTXL
CHANNEL 22
(CONSIDERING KSPX-TV MOVE TO CHANNEL 21)
Record parameters as studied:
Channel: D22
Latitude: 38 16 18.00 N (NAD83)
Longitude: 121 30 22.00 W
Height AMSL: 601.6 m
HAAT: 599.0 m
Peak ERP: 1000 kW
Antenna: DIE-TFU-19ETT/VP-R 4C170 345.0 deg
Elev Pattrn: Generic
Elec Tilt: 0.8
Bob,
Have noticed something really strange with KOVR the past few weeks. While watching NCIS New Orleans, anytime there is a musical performance, the only audio heard is from the surrounds on my home theater. First noticed when watching the episode with Jimmy Buffett. Kicked over to KPIX to see if it was the program and no issues at all. Well tonights episode featured a bar scene with a band and singer and once again, no audio except for the surrounds. Thought you should know.
Lee
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post #10715 of 10716 Old 10-12-2017, 11:55 AM
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Bob,
Have noticed something really strange with KOVR the past few weeks. While watching NCIS New Orleans, anytime there is a musical performance, the only audio heard is from the surrounds on my home theater. First noticed when watching the episode with Jimmy Buffett. Kicked over to KPIX to see if it was the program and no issues at all. Well tonights episode featured a bar scene with a band and singer and once again, no audio except for the surrounds. Thought you should know.
Lee
Looking into it. - Bob
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post #10716 of 10716 Old 10-12-2017, 06:31 PM
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Looking into it. - Bob
We've checked our recording of NCIS New Orleans, which monitor all of streams and audio channels, including 5.1, and it all looks good. No other viewer complaints.

- Bob
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