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The Good Old Days of Full-Powered Analog TV

The technical side of broadcasting. Think IBOC is a sham? Talk about it here! How about HDTV? Post DX reports here as well.
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mtburb
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Location: Wyandotte, 17 miles from Southfield, 38 miles from Oregon

Re: The Good Old Days of Full-Powered Analog TV

Post by mtburb » Fri Jan 11, 2019 12:09 pm

To get back on to the original topic of this thread (somewhat), anyone remember the pre-fiber-optic days of cable when cable channels 2-13 would often receive heavy interference from any nearby OTA VHF stations?

This was heavily prevalent with 2/4/7/9, because back in the day both Wayne Cablevision/Maclean-Hunter/Comcast in Southgate and Wyandotte Cable carried those four stations precisely on cable 2/4/7/9. There probably may have even been interference from WTOL and WTVG on cable 11 (which was USA in Southgate and Prevue Guide in Wyandotte) and 13 (ESPN in Southgate, CNN Headline News in Wyandotte), but I can't quite remember too much.

At least Trillium Cable/Shaw Cable/Cogeco in Windsor was smart enough to put 2/4/7/9 on different cable positions, but yet they decided to put WJBK on 7, meaning interference from WXYZ.


My furthest DTV tropo: KDKA Pittsburgh, Pennsylvania at 202 miles for three days in January 2017 and a night in September 2017 with only an Antennas Direct C2V!

Current setup: Antennas Direct C2Max (2018-present)

CK-722
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Re: The Good Old Days of Full-Powered Analog TV

Post by CK-722 » Fri Jan 11, 2019 12:55 pm

Eighth or Ninth Week #1. Probably one of the longest runs at #1 ever on The Big 89.

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Last edited by CK-722 on Fri Jan 11, 2019 1:03 pm, edited 1 time in total.


Is THAT where they got the idea for the 486-SX?

Same (x, y, z), different (t)

Your bullet missed my trial balloon.

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CK-722
Posts: 567
Joined: Sun Dec 16, 2018 3:53 pm

Re: The Good Old Days of Full-Powered Analog TV

Post by CK-722 » Fri Jan 11, 2019 1:01 pm

I'm sorry I Hi Jack Mellencamped your thread! The Allied Catalog page links were on topic. The Screenplay was just for your entertainment1

Just indulge me once more.

Image


Is THAT where they got the idea for the 486-SX?

Same (x, y, z), different (t)

Your bullet missed my trial balloon.

RTN Price. Not guaranteed. As of 12:30, 157.71 Down 0.22.

Artificial Intelligence is a Child that needs a Parent to guide it through.

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WOHO
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Location: Cumulus has killed 1470 KHz

Re: The Good Old Days of Full-Powered Analog TV

Post by WOHO » Fri Jan 11, 2019 11:41 pm

40 element VHF Yagi? 220 miles? How about the curvature of the Earth? So, if I had a 40 foot tower in Monroe, Michigan, I highly doubt this antenna would pick-up Chicago stations? Or, would it (other than ducting). Most towers that went up here in Northern Ohio in the late 60's and early 70's were 40 footers.



CK-722
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Re: The Good Old Days of Full-Powered Analog TV

Post by CK-722 » Sat Jan 12, 2019 12:09 am

WOHO wrote:
Fri Jan 11, 2019 11:41 pm
40 element VHF Yagi? 220 miles? How about the curvature of the Earth? So, if I had a 40 foot tower in Monroe, Michigan, I highly doubt this antenna would pick-up Chicago stations? Or, would it (other than ducting). Most towers that went up here in Northern Ohio in the late 60's and early 70's were 40 footers.
These antennas didn't last long, but there used to be an installer on Donaldson Blvd. in Flint who had a 2 Bay Stacked 5 Star Knight/Finco on a Cornell Dubelier Rotator mounted inside the top of the ~50 foot tower.

In 1969 we got an Allied Colorset 60 10 Element VHF V-Log and a UHF Yagi Log Antenna, seems like 7 driven straight dipole elements and 12 directors, on an Alliance T-45 Rotator. The antenna was rated at 190 Miles for VHF. When CKLW-TV/CBET and WWTV used to sign off, I could see WGN-TV 9 fading in and out many Nights. And it wasn't from Cable, because that wasn't on Channel 9 when it was eventually on Lamb Communications...Comcast Cable. WJRT-TV 12 was on Channel 10 Cable because of the cable leakage discussed in a previous post.


Is THAT where they got the idea for the 486-SX?

Same (x, y, z), different (t)

Your bullet missed my trial balloon.

RTN Price. Not guaranteed. As of 12:30, 157.71 Down 0.22.

Artificial Intelligence is a Child that needs a Parent to guide it through.

CK-722
Posts: 567
Joined: Sun Dec 16, 2018 3:53 pm

Re: The Good Old Days of Full-Powered Analog TV

Post by CK-722 » Sat Jan 12, 2019 3:30 pm

Here's the Allied Colorset 60. The next year, they added a Low V and a High V Reflector. It was then rated at 200 Miles VHF. For occasional tropo in the middle of the Night, when most stations except WGN-TV signed off, well, maybe on a good Night.

http://www.alliedcatalogs.com/html/cata ... /h028.html


Is THAT where they got the idea for the 486-SX?

Same (x, y, z), different (t)

Your bullet missed my trial balloon.

RTN Price. Not guaranteed. As of 12:30, 157.71 Down 0.22.

Artificial Intelligence is a Child that needs a Parent to guide it through.

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