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KXA Power Increase

Just got word that KXA was granted operational authority by the FCC to increase daytime power to 50kW. They just cranked up a few minutes ago (around 10A).

If nothing else, it will drive their utility bill up something fierce.
 
There are so many factors that can affect the utility costs of a high watt transmitter plant (actual wattage, solid state vs. tube, type and complexity of the antenna system used, day vs. nighttime power, etc.). I know of one 50kW AM station that had an utility bill of about $3500.00 a month.
 
That's in the right ballpark. maybe $4k.
 
Excellent idea. Continue the IBOC 24 hours a day, and no one in Monroe can hear KFBK at night! Sweet! :mad:

-crainbebo
 
How in the world does a station in the capital of California serve Monroe WA?
It looks like you have internet, why don't you listen to the stream?
 
dunno said:
How in the world does a station in the capital of California serve Monroe WA?
oh I know. KBKW's coast to coast with george noory sounds better from a far away fading AM signal , than local FM KIRO? yep, that's it!
 
I've always enjoyed listening to 1530 over the air from Sacramento at night, but now with the IBOC of KXA, it is unusable. Ditto KGA 1510 khz.

-crainbebo
 
Carmine5 said:
There are so many factors that can affect the utility costs of a high watt transmitter plant (actual wattage, solid state vs. tube, type and complexity of the antenna system used, day vs. nighttime power, etc.). I know of one 50kW AM station that had an utility bill of about $3500.00 a month.


:eek:

thx
 
In my area, KKXA's signal doesn't present very much interference to adjacent channels.

RE: KFBK: KFBK has the most dependable AM signal for C2C into the Puget Sound region at night. Other stations like KEX, KPNW and KONA often have a lot of co-channel interference.

I listen to C2C either on KFBK, KEX, or KPNW, depending on signals. I've never listened to KIRO-FM. I don't listen to FM much at all. I don't find most FM programming very interesting.
 
You're getting co-channel interference on KEX? They figured a 750 mile contour, when the broke up the clears, so I believe the distance to Sacramento exceeds that.
 
But KFBK is directionalized right at Seattle at night, and can often be heard during the dark hours in a lot of Alaska. Their signal doesn't travel south to Palm Springs, but comes in like a local at night throughout the Pacific Northwest and beyond.

If they were granted a 750 miles protection zone as a clear channel, it would have to be modified to accommodate their actual pattern, since 300 miles south of Sacramento, they don't get much of a signal out. That is, if the FCC's revised rules worked in the real world of acutal radio signal propagation.

But the FCC allowed stations on 800 and 820 to cover up KGO's likewise solid skywave up here. So I doubt KFBK could file for any kind of signal protection from 1520.

Hey, maybe KFBK will broadcast the Sacramento Kings basketball schedule this fall! I'm sure they've got a big fan base around here. Would be a shame to miss out on that, just for some side-channel noise.

By the way, when I heard George Jones died, I tried 1520 on my car radio, and, right on cue, they started a classic George Jones song. Glad that somebody cared.
 
No 750 mile rule anymore.

§ 73.182 (1)(i)(B) (i) The mainland U.S. Class A stations
are those assigned to the channels
allocated by § 73.25. The power of
these stations shall be 50 kW. The Class
A stations in this group are afforded
protection as follows:
(A) Daytime. To the 0.1 mV/m
groundwave contour from stations on
the same channel, and to the 0.5 mV/m
groundwave contour from stations on
adjacent channels.
(B) Nighttime. To the 0.5 mV/m-50%
skywave contour from stations on the
same channels.
 
This is actually more stringent than what I suggested! Are you saying that there is NO skywave protection from first adjacencies? It's almost like being a regional.
 
KKXA is a powerhouse in Snohomish County.

Wonder if KRKO and KKXA make it into Darrington now? When I was there in 1996, only ghostly nighttime skywaves were heard on AM - almost nothing, save super weak signals from KIRO and KOMO came in during the day. And except for the Bellingham and Victoria stations (and strangely enough, KSER on that 1,000 watt/100 foot stick in north Lynnwood), nothing else came in clearly.

I oughta take a drive out there this weekend.
 
Let me know what you hear when you get to Darrington. My sense is that all the signals will still be weak. I have a trip scheduled that direction soon.
 
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