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Search found 350 matches

by Marcus
Sat Jan 27, 2024 10:12 am
Forum: Metro Detroit/SE Michigan
Topic: 50.5 Nosey?
Replies: 11
Views: 5081

Re: 50.5 Nosey?

Right now, it says that the resolution on 50.5 is 1080i, making WKBD the second television station in the market to have dual 1080i's after Detroit Public TV (56). If something is going to be upgraded, I would expect it to be Comet. Although Nosey might be added somewhere, why broadcast it in HD?
by Marcus
Fri Jan 26, 2024 11:29 pm
Forum: Metro Detroit/SE Michigan
Topic: WJBK signal strength?
Replies: 34
Views: 5278

Re: WJBK signal strength?

You're right. I always thought that two 1080i's wouldn't work over ATSC 1.0

My TV set indicates that channel 50.5 is also in 1080i. Right now, there is a test pattern that reads CBS TV DETROIT on it.
by Marcus
Fri Jan 26, 2024 5:46 pm
Forum: Broadcasting - General
Topic: The History of UHF Television
Replies: 7
Views: 1147

Re: The History of UHF Television

The CRTC does not allow two TV broadcasts to use 720p and share a single 6 MHz bandwidth. That means Omni.1 and Omni.2
are on different channels in Toronto, Ottawa, and London. The same goes for CBC English and the French language service.
by Marcus
Fri Jan 26, 2024 2:50 pm
Forum: Metro Detroit/SE Michigan
Topic: WJBK signal strength?
Replies: 34
Views: 5278

Re: WJBK signal strength?

The WADL signal could be fixed rather quickly. Detroit Public TV is 1080i which means they could use channel sharing with WADL if they are willing to broadcast with 720p. If you watch FOX 2 over the ATSC 3.0 transmission, you can get it with a UHF antenna. It also gets out to the west without too mu...
by Marcus
Mon Jan 22, 2024 11:36 pm
Forum: Metro Detroit/SE Michigan
Topic: Rock ‘n Stereo 101 WRIF
Replies: 17
Views: 4070

Re: Rock ‘n Stereo 101 WRIF

It will take some time to get through all of this, but this show might cover the demise of the Top 40 era on AM 1270, along with the WXYZ-FM phases over at 101 FM. If you can find old copies of the Free Press and the Detroit News online, it might also be mentioned there. https://mcrfb.com/?page_id=286
by Marcus
Mon Jan 22, 2024 7:54 pm
Forum: Engineering & DX'ing
Topic: Better sensitivity/selectivity from new RF DSP Chip
Replies: 4
Views: 606

Re: Better sensitivity/selectivity from new RF DSP Chip

It's true that the radios with it right now do not have SSB. One of the receivers is at a low wholesale price however. https://www.aliexpress.us/item/3256806073140794.html?src=google&src=google&albch=shopping&acnt=272-267-0231&slnk=&plac=&mtctp=&albbt=Google_7_shopping&gclsrc=aw.ds&albagn=888888&ds_...
by Marcus
Mon Jan 22, 2024 12:24 am
Forum: Metro Detroit/SE Michigan
Topic: Rock ‘n Stereo 101 WRIF
Replies: 17
Views: 4070

Re: Rock ‘n Stereo 101 WRIF

I think the timeline for 101.1 FM went like this: 1948-1958: Both AM 1270 and 101 FM simulcasted ABC network variety programming. They were WXYZ radio. 1958-1966: The Top 40 phase was on both the AM & FM. They were known as Channel 1270. 1966-1967: The FCC simulcast law came into effect. WXYZ-FM had...
by Marcus
Sun Jan 21, 2024 3:00 pm
Forum: Engineering & DX'ing
Topic: Better sensitivity/selectivity from new RF DSP Chip
Replies: 4
Views: 606

Better sensitivity/selectivity from new RF DSP Chip

The chip is known as the NXP TEF6686. It sounds like it is even better than the DSP circuit that the current Sangean, Eton/Grundig, and CCrane radios use right now. https://radiojayallen.com/qodosen-sr-286-am-fm-sw-high-performance-portable/ https://swling.com/blog/2022/12/ivan-checks-out-the-new-te...
by Marcus
Wed Jan 17, 2024 7:26 pm
Forum: Chatterbox
Topic: Electric vehicles suck in frigid weather
Replies: 13
Views: 678

Re: Electric vehicles suck in frigid weather

The auto makers had to have known about this.

https://www.gm.ca/en/home/company/canad ... round.html
by Marcus
Wed Jan 03, 2024 5:28 pm
Forum: Metro Detroit/SE Michigan
Topic: Audacy files Chapter 11
Replies: 26
Views: 3414

Re: Audacy files Chapter 11

Remember how Adell wanted to put WFDF on FM?
by Marcus
Mon Jan 01, 2024 11:22 pm
Forum: Engineering & DX'ing
Topic: 0.10 miles from cellular antennas and interference
Replies: 3
Views: 638

Re: 0.10 miles from cellular antennas and interference

WADL TV is 39 miles away from that location, and it is difficult to receive. WDIV is the one that tends to be the first one to come in, due to a taller broadcast tower. The two bridges between the U.S/Canada border are southwest of that location, so that might not help.
by Marcus
Wed Dec 27, 2023 9:21 pm
Forum: Engineering & DX'ing
Topic: 0.10 miles from cellular antennas and interference
Replies: 3
Views: 638

0.10 miles from cellular antennas and interference

I was trying to get stable TV reception from the inside of an apartment building that is only 0.10 from another building that has those cell phone antennas on the roof. They came in off and on. I was using an inexpensive amplified antenna. I am wondering if a passive antenna + an LTE filter would wo...
by Marcus
Sat Dec 16, 2023 10:20 pm
Forum: Engineering & DX'ing
Topic: CKWW 580 Signal Observations
Replies: 28
Views: 4414

Re: CKWW 580 Signal Observations

The nighttime interference on 580 is making their signal useless where I live tonight. I don't recall that being much of a problem in the past.
by Marcus
Tue Dec 12, 2023 1:38 pm
Forum: Engineering & DX'ing
Topic: 50kw Daytime Non-Directional
Replies: 5
Views: 1010

Re: 50kw Daytime Non-Directional

The clay soil in the township just to the south of Sarnia has high ground conductivity. 700 WLW from Cincinnati comes in during the daytime on a sensitive radio. Based on a map I saw it appears that 590 VOCM on the East Coast can be picked in SW Greenland if you are close enough to the salt water.
by Marcus
Wed Dec 06, 2023 5:32 pm
Forum: Remembering the Golden Years
Topic: Early 70s Underground/Freeform Radio CJOM WABX WWWW
Replies: 12
Views: 1728

Re: Early 70s Underground/Freeform Radio CJOM WABX WWWW

CFPL-FM in London had Progressive Rock starting at Midnight as early as 1972. That was the same year that 1570 CHLO had a similar format to what WRIF had at the time. https://broadcasting-history.ca/radio/radio-stations/ontario/ontario-south-western/cfpl-fm/ https://broadcasting-history.ca/radio/rad...