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Foreign broadcast..any answers?
- Thread starter Rob
- Start date
R
Radio-X
Guest
That is correct. 570 basically covers Cuba and much of the Florida Peninsula with 10kW at such a low frequency. It also has some FM counterparts as well in mono., along with Radio Rebelde and a couple of FM-only networks.
If you ever get the chance, go down to the Keys. 96.9 (I think) and 100.5 are stations that are consistant signals to the lower keys from Cuba.
Radio-X
If you ever get the chance, go down to the Keys. 96.9 (I think) and 100.5 are stations that are consistant signals to the lower keys from Cuba.
Radio-X
P
PaulBWalkerJr
Guest
Or is it 96.7? Im not sure either.. but I remember discussing with a friend about an allocation in the FM auction in the Keys which, currently isn't used, or when built but off air.. Cuba would come blasting in.
robfwb said:There only 10KW? I would think more as their signal can be heard far away. Why is it that I have such a hard time hearing a local 570 but I hear RR loud and clear?
There are really too many variables to give you a definitive answer, starting with the American 570 -- its power, and (more importantly) antenna pattern, ground conductivity between you and the station, possible "skip zone" issues, other co-channel interference, and the like.
10 kW is really a lot of power, especially to a non-directional. Further, the path to the Cuban is over the water, with is also an important issue.
DE
That and 5k day/1k night ND 560 WQAM Miami doesn't help....
Thats the thing that ticks me off is that american stations lower their power at night. I can barley hear Coast to Coast AM on WFTW 1260 since they lower to 250 watts of pwr. Why they can't stay 5kw 24 hours is beyond me.
Heck I barely can hear WSM down here. Nothing but mexican/cuba crap
Rob
Heck I barely can hear WSM down here. Nothing but mexican/cuba crap
Rob
> american stations lower their power at night.
Well, if you are wondering what it would sound like if everybody ran the same power night and day, check out the "Class C" AM channels: 1230, 1240, 1340, 1400, 1450, & 1490. On those "local" channels, almost everyone is running 1kW day and night. Due to skywave, the noise floor is so high, even at 1 kW, many stations' night signals only make it a few miles before being swallowed up by the roar of dozens of others at 20 dB over S9.
Without some management of nighttime skywave (lower power, directional arrays, and the like), it would be a mess on every frequency.
A couple of asides:
WFTW really shouldn't have much of a night signal. Years ago, it was a daytimer, but actually got a nice gift (131 W) when FCC computers assigned some night power to most daytime stations. Some stations only got a few watts (really -- like 4 or 5 watts); 131 W is actually usable in a smaller city. We have a station here in Memphis that just has 35 W; it doesn't get very far at night! But, they use it.
WSM is 50 kW fulltime. 1 tower; 50 kW. They need not even pay attention to when the Sun goes down. It's just that on the water where you are, those Latin signals roll in unimpeded. I used to live not far from you on the Mississippi Coast; I could hear Cubans all day with no trouble. They just got louder at night.
DE
Well, if you are wondering what it would sound like if everybody ran the same power night and day, check out the "Class C" AM channels: 1230, 1240, 1340, 1400, 1450, & 1490. On those "local" channels, almost everyone is running 1kW day and night. Due to skywave, the noise floor is so high, even at 1 kW, many stations' night signals only make it a few miles before being swallowed up by the roar of dozens of others at 20 dB over S9.
Without some management of nighttime skywave (lower power, directional arrays, and the like), it would be a mess on every frequency.
A couple of asides:
WFTW really shouldn't have much of a night signal. Years ago, it was a daytimer, but actually got a nice gift (131 W) when FCC computers assigned some night power to most daytime stations. Some stations only got a few watts (really -- like 4 or 5 watts); 131 W is actually usable in a smaller city. We have a station here in Memphis that just has 35 W; it doesn't get very far at night! But, they use it.
WSM is 50 kW fulltime. 1 tower; 50 kW. They need not even pay attention to when the Sun goes down. It's just that on the water where you are, those Latin signals roll in unimpeded. I used to live not far from you on the Mississippi Coast; I could hear Cubans all day with no trouble. They just got louder at night.
DE
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