-
Get involved.
We want your input!
Apply for Membership and join the conversations about everything related to broadcasting.
After we receive your registration, a moderator will review it. After your registration is approved, you will be permitted to post.
If you use a disposable or false email address, your registration will be rejected.
After your membership is approved, please take a minute to tell us a little bit about yourself.
https://www.radiodiscussions.com/forums/introduce-yourself.1088/
Thanks in advance and have fun!
RadioDiscussions Administrators
Stations with different transmitter locations for day, night, and critical hours.
- Thread starter Ai4i
- Start date
The old WPEN 950 in Philly doesn't use a critical-hours pattern, per ai4i's topic, but it has one tower site for day and a different one for nighttime.
The calls are now WKDN.
It appears that the nighttime array is located where the original 24/7 towers broadcast. The new DAYtime array is about 18 miles northwest of Center City.
The calls are now WKDN.
It appears that the nighttime array is located where the original 24/7 towers broadcast. The new DAYtime array is about 18 miles northwest of Center City.
Looks like KSTP has just two main sites, fairly close together, a Day site and a Night site. Possibly they have a longstanding auxiliary location? Class I-B/Class A stations are usually far enough apart to not need Critical Hours protection from each other. Class Bs like WPEN on Regional Channels do not use CH protection, though with new 25-50 kW stations on Regional Channels do sometimes interfere with each other during CH. Other Class Bs on Clear Channels are not normally afforded CH protection.
Last edited:
NO, no, no!
My topic is being misunderstood. I should have labeled it,
"Stations with multiple transmitter sites", end, stop, unquote, fin, finé, period.
Last edited:
Different day and night sites?
WEBY 1330 Milton, FL uses it's original downtown tower for 100 watts at night and a newer 3 tower array 20 miles south, in the swamp, for 15kw day. Daytime coverage is 3 counties, the biggest daytime AM station in Central time zone Florida. Nighttime is just the small city of Milton.
WEBY 1330 Milton, FL uses it's original downtown tower for 100 watts at night and a newer 3 tower array 20 miles south, in the swamp, for 15kw day. Daytime coverage is 3 counties, the biggest daytime AM station in Central time zone Florida. Nighttime is just the small city of Milton.
If you're referring to only multiple transmitter sites, WYLL Chicago qualifies.
Off the top of my head 940 WMIX Mt Vernon, IL 1210 WILY Centralia,IL, 1380 KXFN St Louis, MO 680 WCBM Baltimore, MD, 1370 WQLL Pikesville, MD 950 WNTD, Chicago,IL and I know there are many others....
OK. So far, the list (from the previous posts) looks like this:
630 KSLR San Antonio, TX
680 WCBM Baltimore, MD*
690 WOKV Jacksonville, FL
820 WCPT Willow Springs, IL
940 WMIX Mt. Vernon, IL
950 WNTD, Chicago, IL
950 WKDN Philladelphia, PA
1160 WYLL Chicago, IL
1190 KFXR Dallas, TX
1210 WILY Centralia, IL
1330 WEBY Milton, FL
1370 WQLL Pikesville, MD
1380 KXFN St Louis, MO
1500 KSTP St. Paul, MN
* WCBM does not show multiple transmitter locations in Radio-Locator. Everything else checks out.
You can use this list for more additions.
630 KSLR San Antonio, TX
680 WCBM Baltimore, MD*
690 WOKV Jacksonville, FL
820 WCPT Willow Springs, IL
940 WMIX Mt. Vernon, IL
950 WNTD, Chicago, IL
950 WKDN Philladelphia, PA
1160 WYLL Chicago, IL
1190 KFXR Dallas, TX
1210 WILY Centralia, IL
1330 WEBY Milton, FL
1370 WQLL Pikesville, MD
1380 KXFN St Louis, MO
1500 KSTP St. Paul, MN
* WCBM does not show multiple transmitter locations in Radio-Locator. Everything else checks out.
You can use this list for more additions.
Awhile back, WKDN's night transmitter was drifting off frequency
Many stations with two sites, particularly with two DAs, have consolidated to one site. Other Class Ds with very low power PSSAs may have nondirectional Night facilities in more center city locations. A few like WLCM 1390 Holt, MI have gone to two sites fairly recently to meet very different day and night requirements and serve a larger population. A few like WGBN 1360 McKeesport/Pittsburgh (WIXZ) can go nondirectional days in a highly populated larger city.
Last edited:
That makes good sense for the flee-power night signals of former daytimers.
WRHC 1550 Coral Gables, FL used to have a day sight in Biscayne Bay before the federal parks department made them vacate it and use their inland night site exclusively. The issue was how to put a strong signal across Miami while protecting all of the Bahamas Islands ZNS 1540. They eventually moved to a new facility west of Miami, but their day and night signals are both marginal with their city grades barely reaching the coast.
WRHC 1550 Coral Gables, FL used to have a day sight in Biscayne Bay before the federal parks department made them vacate it and use their inland night site exclusively. The issue was how to put a strong signal across Miami while protecting all of the Bahamas Islands ZNS 1540. They eventually moved to a new facility west of Miami, but their day and night signals are both marginal with their city grades barely reaching the coast.
Sorry if I made a mistake on WCBM, but here is another I just remembered 920 WMOK Metropolis, IL. 1390 WRSC in State College, PA used to have separate sites but moved the day operation to the night site
I
IndigoCoyote
Guest
630 KCIS Edmonds WA
1250 KKDZ Seattle was co-located until last summer, when the night site was developed into 29 houses at 900K each. Not hard to figure out the math on WHY they did that, but it now makes for a miserable low powered night signal from the day site.
In the Sacramento CA market, both 1380 KTKZ and 1320 KCTC run split day/night sites.
I do not know if things have changed over the years, but when WAPE (now WOKV) launched night service, they sent audio from a modulation monitor at the nighttime site back to the studio at the daytime site so the "jocks" would not go crazy listening to all the QRM on 690.
This isn't germane to the OP, but here seems like the best place to put a story. I'm sure there have to be others.
A buddy of mine worked at Top 40 WGLI for a spell.
Now dark for over ten years, WGLI was a really shoehorned regional back in its heyday, with a wee back lobe sort of NNW, big nulls to the SW and NE, and a huge ESE lobe that was regularly enjoyed in Bermuda.
Anyway, when the time came at SSS to power down from 5000 to 1000 watts (same directional pattern iIrc) my pal Rodj tells me they would regularly, almost faithfully, hear an ID from WNBF Binghampton NY over the air monitor. WNBF would still be doing their 5000 omni day stuff.
(Footnote: Another buddy of mine was CE of WGLI toward the real tail end of its race. He got approval to run the station at 250 watts omni; the station was bought by NYC's WADO 1280 to put it dark, and a case of Midnight Lightning closed out WGLI for good)
A buddy of mine worked at Top 40 WGLI for a spell.
Now dark for over ten years, WGLI was a really shoehorned regional back in its heyday, with a wee back lobe sort of NNW, big nulls to the SW and NE, and a huge ESE lobe that was regularly enjoyed in Bermuda.
Anyway, when the time came at SSS to power down from 5000 to 1000 watts (same directional pattern iIrc) my pal Rodj tells me they would regularly, almost faithfully, hear an ID from WNBF Binghampton NY over the air monitor. WNBF would still be doing their 5000 omni day stuff.
(Footnote: Another buddy of mine was CE of WGLI toward the real tail end of its race. He got approval to run the station at 250 watts omni; the station was bought by NYC's WADO 1280 to put it dark, and a case of Midnight Lightning closed out WGLI for good)
- Status