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CP issued for KOTC to move to Memphis
- Thread starter DeadElvis
- Start date
I remeber when Larry Duke, formerly of Jonesboro, owned that station briefly in the early to mid 90's. Sadly, one of our jocks, who was a very good friend of mine (Kevin McMinn) died in a traffic accident driveing from Jonesboro to Kennett to sign on the station one foggy morning.
G
gonzoid
Guest
radiosaur said:
Can you explain why that's bad, kind sir?
gonzoid said:
Well, it’s’ bad to me because I’m an engineering purist and it’s a sign of them trying to do it on the cheap. In this case it’s probably OK because I suspect they are using one of Q’s three towers they don’t use during the day, but feeding two AM stations into the same tower or diplexing as it’s called can be a royal pain in the *** to maintain as well as degrading both signals.
Too bad the 1430 Levee Road tower is gone.
I don’t have any knowledge of this specific scenario (nor do I want to) but have done a few of these over the years.
They should have reject 830, pass 560 filters between the output of the ltu’s and the towers for the 560 daytime array, then a pass 830, reject 560 on whichever other tower they decide to use other than the 560 day towers. At 270 kHz it should not be too much of headache too get by with series traps only. Cost might be a wash just to use one of the current 560 towers for 830 as well. Saves one set of filters but the components and box size may offset that savings, “Six of one, half-dozen of another”. Regardless, these things are a lot of work and not simple physically or electrically to accomplish. Then have to also go back and recover the host antenna operating parameters. It will be difficult to do it on the “cheap” in any case. Hell… Just the filters are going to run about 60k and that does not include the installation, tuning, re-tuning then proofs. I have seen people try to get by without filters, but impossible to make the 80db requirement.
w/
They should have reject 830, pass 560 filters between the output of the ltu’s and the towers for the 560 daytime array, then a pass 830, reject 560 on whichever other tower they decide to use other than the 560 day towers. At 270 kHz it should not be too much of headache too get by with series traps only. Cost might be a wash just to use one of the current 560 towers for 830 as well. Saves one set of filters but the components and box size may offset that savings, “Six of one, half-dozen of another”. Regardless, these things are a lot of work and not simple physically or electrically to accomplish. Then have to also go back and recover the host antenna operating parameters. It will be difficult to do it on the “cheap” in any case. Hell… Just the filters are going to run about 60k and that does not include the installation, tuning, re-tuning then proofs. I have seen people try to get by without filters, but impossible to make the 80db requirement.
w/
This stirs my memory a bit. I'm probably talking through my hat with my non-engineering knowledge, but this sounds a bit like what happened to WREC 20-odd years ago. The WREC transmitter has been sitting out on North Watkins all those years on its 26 acres of hay, not bothering anybody, just sitting there with that Florida architecture look, making people wonder wotinhell was that as they went home to Glory(Frayser).
Then I-240's northern loop was built and all that danged dirt they moved to build up the roadbed changed things for WREC's array...WHBQ at 560 began bouncing off our towers and bitchslapping WCRV at 640. WCRV went crying to WHBQ who yelled at us. Drat!
That interstate loop cost us many thousands of dollars what with consulting engineers flying in, endless measurements and tweaking, and the final solution--notch our harmonics so WHBQ wouldn't go boiling off WREC's radials/tower(?) and coldcocking WCRV anymore.
No harm, no foul, just a whole lot of expense to WREC just because some gummint bulldozers got pushy. I don't think we got a thank you note from WCRV for preserving their purity. I'm sure Hoyt Wooten got up to about 500rpms in his grave!!!
Then I-240's northern loop was built and all that danged dirt they moved to build up the roadbed changed things for WREC's array...WHBQ at 560 began bouncing off our towers and bitchslapping WCRV at 640. WCRV went crying to WHBQ who yelled at us. Drat!
That interstate loop cost us many thousands of dollars what with consulting engineers flying in, endless measurements and tweaking, and the final solution--notch our harmonics so WHBQ wouldn't go boiling off WREC's radials/tower(?) and coldcocking WCRV anymore.
No harm, no foul, just a whole lot of expense to WREC just because some gummint bulldozers got pushy. I don't think we got a thank you note from WCRV for preserving their purity. I'm sure Hoyt Wooten got up to about 500rpms in his grave!!!
A perfect 40 kHz 560/600 turnaround winds up on 640. It all depends on whose transmitter it comes out of as to who has to fix it. The mix might have been there before they moved from 630 to 640 and went un-noticed, also some older transmitters were more forgiving than the newer breed.
On a related story, I remember when they (WCRV) moved to 640 and the owner at the time called to complain about interference he was getting from WSM at 650. He threatened to call the FCC if we didn’t stop it so I gladly gave him their phone number. We later proved WCRV was based on bogus field intensity measurements. Even considering poorest or worst case soil conductivity 640 power should be no more than 7.5 kW. It was too late by then, once the FCC issues a license, that’s it.
w/
Retired WSM engineer
On a related story, I remember when they (WCRV) moved to 640 and the owner at the time called to complain about interference he was getting from WSM at 650. He threatened to call the FCC if we didn’t stop it so I gladly gave him their phone number. We later proved WCRV was based on bogus field intensity measurements. Even considering poorest or worst case soil conductivity 640 power should be no more than 7.5 kW. It was too late by then, once the FCC issues a license, that’s it.
w/
Retired WSM engineer
I agree with Watt 100% on the diplex aggravation factor. I dealt with two of these in my career. Neither was a happy experience. I hope they know what they’re getting into. There’s also the issue of keeping the unused 560 tower detuned after you hook it up to another transmitter. If it’s used as a parasitic element in the daytime array that multiplies the problem.
Hey, Tynes, I’ve heard that story. The same thing may happen to the 680 transmitter depending on where I-69 goes. The TDOT plot shows it going right through the Benjestown road site. So even if they swerve to miss it in the final construction, there may be some grounding issues….if I-69 ever gets built.
Hey, Tynes, I’ve heard that story. The same thing may happen to the 680 transmitter depending on where I-69 goes. The TDOT plot shows it going right through the Benjestown road site. So even if they swerve to miss it in the final construction, there may be some grounding issues….if I-69 ever gets built.
G
gonzoid
Guest
It certainly sounds bad. You gents have made my head hurt!
Michael said:
I'd honestly rather see them keep the Spanish format than go to that. We definitely don't need another station like WMQM and WRLM in the area.
F
foreverchanges1975
Guest
Seems like they're not silent anymore. I noticed yesterday they're simulcasting 104.3 the Quake (which is classic rock off the bird) from Kennett.
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