[BC] XERF - Was: DA Bandwidth

[PeterH5322]

>By the way  what about the old XEROK,  what power are they  running???  Paul 
>Gregg told me the Continental 3xx  19 or 20?   150 kW. AM is still down 
>there 
>but not operating.  I don't recall if it is  in operating condition.  I 
>believe Bruce Earl was involved with this  station at one time.   The 
>transmitter is 
>exactly like the  317C2,  with two parallel 4CX35000 in the peak and the 
>carrier  positions,  and two 4CX15,000A in the modulator stages.

The "border-blasters" appear to be a mixed bag.

The L.A.-area BBs are Class I-Bs, not Class I-As.

690 is operating with close to maximum "Rio" power, 77/50 kW, DA-2.

1090 is operating with NARBA, pre-"Rio" power, 50 kW DA-N.

With over one-half of the population of the world's fifth-largest economy 
well within range of their signals, more power isn't required, nor is it 
possible, nights.

Plus, there are second-adjacent issues for both stations ... 670/690/710 
and 1070/1090/1110.


The true border-border-blasters ... 800 and 1570, Class I-As, both ... 
don't have the benefit of an immediately adjacent foreign metro with huge 
populations.

I have heard that XEROK, ex-XELO, is operating with less than 150 kW.

The slightly interior BBs ... 540 and 1050 ... are operating with the 
usual, for Mexico, 150 kW, covering the local markets in the process.


Incidentally, pre-"Rio", Mexico operated a Class II-B with 100/50 kW 
ND-U, which is actually the "Rio" Class I-B maximum. This station is 
reported to be operating with the "Rio" maximum for a Class B, 50 kW U, 
now.