I-5 Vallejo to L.A

[pianoplayer88key]

Could these be some SF in SD recordings gar fla is referring to?

680 KNBR - 2-12-2011 1:16pm PST - Tecsun PL-606 & Select-A-Tenna
KNBR, 50kW ND, is about 445 miles from me at a heading of about 320°. The adjacent-channel interference is from 690 XEWW (still listed as XETRA) about 32 miles away at 189°, 77kW with a directional antenna and a field at 1 km of about 3,857.87 mV/m in my direction (non-directional field would be 2,537.60 mV/m).
810 KGO - 2-12-2011 1:31pm PST - Tecsun PL-606 & Select-A-Tenna
KGO is about 439 miles distant, heading 320°. Their 50kW signal is directional, sending 2,965.95 mV/m @ 1 km toward me (non-directional would be 2,487.08 mV/m). Adjacent QRM is courtesy of 800 XESPN, which is 1kW ND at about 17.5 miles and 193°.

I even wonder if it's possible to hear KCBS under KBRT on 740? In a few of the brief times when the preacher on KBRT would shut up for a second, I thought I could faintly detect a hint of something underneath.
KBRT is a fairly strong pest, though, being 10kW at 92 miles and 297°, and directional with 1,467.72 mV/m toward me (non-directional would be 959.17 mV/m), and most of the path is over saltwater. KCBS, on the other hand, is about 486 miles at 320°. Their 50kW directional signal sends 5,204.75 mV/m @ 1 km toward me (non-directional would be 2,529.44 mV/m). I think if KBRT was off the air, KCBS would be somewhat easier to hear.

BTW, I'm near 32°45'40"N 116°56'50"W, and about 18 miles east of the Pacific coast.

Getting San Francisco isn't the best daytime distance I've done, though.
700 KALL North Salt Lake City, UT - 2-12-2011 1:02pm PST - Tecsun PL-606 & Select-A-Tenna.
KALL is 626 miles distant at a heading of about 25°, all of which I believe is over land. Their 50kW directional signal blasts about 4,375 mV/m @ 1 km toward me (non-directional would be 2,203.11 mV/m). The adjacent-channel QRM is from 690 XEWW, whose details are posted with the 680 KNBR listing above. Also, I was probably getting a bit of IBOC slop from 710 KSPN, whose 50kW non-directional signal is about 129 miles from me, heading 320°.

I also think I've heard 1680 KNTS Seattle, WA at a distance of 1,070 miles, under (or mixing with) KGED Fresno, CA at/near local noon, but I expect that was all skywave.

There is a 700, KMBX, in Soledad, CA, but I get no trace of that here in San Diego.

Also, here and here are some of my attempts last March (2010) to hear San Francisco and a couple others in the early afternoon with the Tecsun PL-380 and Select-A-Tenna.

 

[recto101]

How About KNX 1070 that LA Station can be heard from Vallejo but faint at night.

 

[cyberdad]

There's no 700 in the Bay Area, but there is a 710 in Sacramento

I'm referring to KMBX 700 in Soledad. Former COL Monterey/Carmel IIRC. Listenable in much of of the Bay Area.

 

[gar hi]

Could these be some SF in SD recordings gar fla is referring to?

680 KNBR - 2-12-2011 1:16pm PST - Tecsun PL-606 & Select-A-Tenna
KNBR, 50kW ND, is about 445 miles from me at a heading of about 320°. The adjacent-channel interference is from 690 XEWW (still listed as XETRA) about 32 miles away at 189°, 77kW with a directional antenna and a field at 1 km of about 3,857.87 mV/m in my direction (non-directional field would be 2,537.60 mV/m).
810 KGO - 2-12-2011 1:31pm PST - Tecsun PL-606 & Select-A-Tenna

I've also heard your past recordings of KGO and KNBR daytime and that's most definitely what you were hearing bacause you can rule out other stations.

Nice catches for sure.

I even wonder if it's possible to hear KCBS under KBRT on 740? In a few of the brief times when the preacher on KBRT would shut up for a second, I thought I could faintly detect a hint of something underneath.

I used the earphones and I too could hear something way in the background when that preacher would give brief pauses.

That sounds like what I heard on 660 from Daytona Beach. WORL was the fairly strong station about 35 miles away but there was also some very faint talking in the background which I think was WFAN New York because the Cuban on 660 from Santa Clara would have to cross more than 200 miles of land in Florida and it's barely audible here in Tampa daytime where the land path of that station is far less.


http://www.youtube.com/watch?v=A714aCnDDXU

 

[MarioMania]

How about KBRT?? Do you hear both??

 

[cyberdad]

Did the drive today.  Clear and cool weather conditions for most of the 400+ miles. Ground was wet from recent rains, but I'm not convinced that this has a significant effect on ground conductivity....at least in my rental Camry.  Began the drive in Hesperia at 7:30 a.m.  finished at Yountville 2:30pm.  One pit stop for fuel....another for Carl's Jr. lunch (no In-and-Out Burger handy)   Nothing I found on the car radio struck me as unusual or out of the ordinary.

As for the most discussed Frequencies....

700:  2:30pm in Hesperia (80 miles northeast of downtown L.A.) on Sunday afternoon, I checked this out in the parking lot of a local Target store.  No noise sources nearby.  XETRA and KSPN were both distant enough to be non-factors in terms of splatter.  There was a carrier present on 700, but I couldn't make it out.  I drove for about three miles with the radio on 700, but didn't encounter a point where things improved.  It would have been easy enough to make a determination of what carrier I had. Spanish would have been Soledad, English would have likely been KALL. 

During the drive Monday, I never heard a trace of KALL...at least that I could identify.  KMBX showed up somewhere around Bakersfield, and then I had it for the rest of the trip.

740:  At Hesperia Sunday, I had a weak KBRT.  I thought I heard something underneath....presumably KCBS, but I couldn't tell.  During the drive, by the time I drove 50 miles north and got to Kramer Jct (Highways 395 and 58) in the Mojave Desert, a weak KCBS was on top of an even weaker KBRT.  (Most of the L.A. stations had fairly decent signals on this stretch...and KNBR was also listenable).   During the 90 miles (east northeast) from the junction to Bakersfield, both stations were present, usually with KCBS on top.  Last traces of KBRT disappeared shortly after my right turn (north) on the 99 at Bakersfield.  Here in Yountville, KCBS is a local-grade signal day/night.

Let me know if there are any other questions. 

On Thursday, I'm doing the 135 miles from Seattle to Vancouver.....then back to Seattle Friday.  I've done this drive 2-3 times a year for the past eight years.  Most of each city's signals are present for the entire route, but if anyone has specific questions or anything they'd like me to check out let me know.  Same goes for the next couple of days in Yountville (Napa valley....about 50 miles northeast of San Francisco).  I will check out 700 again while I'm here, given that KMBX is pretty much gone.