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KEZR and KUDL interference

Radiopaw

Radiopaw

So this is surprising as I figure KEZR (106.5 San Jose) should do very well in Silicone Valley but I have had KUDL cut in many times to it. I’ve also received it’s HD signal consistently in southern Redwood City broadcasting the information despite KEZR going over top of it.

My big question is if Alpha were to instate KEZR with HDR/Digital would this help?

My other one - is it odd for KEZR to be facing this interference?
 
Silicone Valley? Freudian slip? :) (Sorry, couldn't resist.)

Sounds like some tropospheric ducting is occurring. I'm guessing such interference is uncommon in the valley. It's not at all uncommon farther east and northeast. I've observed KUDL knocking out KEZR completely during the middle of the afternoon along I-580 in the Livermore and Pleasanton regions.
 
I've never had that happen toward the top of the hills in Oakland. There may have been some tropo that day. Weather conditions have been strange here the past few days, especially today.

KSFM and KDON duke it out for 102.5 supremacy in my driveway, but KDON is farther away from me than KEZR; the latter is on Coyote Peak.
 
MarkW said:
Silicone Valley? Freudian slip? :) (Sorry, couldn't resist.)

Sounds like some tropospheric ducting is occurring. I'm guessing such interference is uncommon in the valley. It's not at all uncommon farther east and northeast. I've observed KUDL knocking out KEZR completely during the middle of the afternoon along I-580 in the Livermore and Pleasanton regions.
Click to expand...

I admittingly can very very consistently get the HD Radio to display over KEZR. It’s also pretty rough on 92, sometimes going out entirely in favor of KUDL. Near the college and south to 280.

Wouldn’t say uncommon, just seems to happen towards 280. I listen to KEZR a good bit as I like them shifting between genres as much as they do, and KUDL is certainly overbearing haha.

It took 2 months of consistency for me to finally make a thread about it.

I’m located in Redwood City, but towards downtown it’s less an issue.

Also, would Alpha picking up HD Radio for KEZR improve this?
 
MarioMania said:
I remember living in Pacifica in the 80s/90s

Listening to KSFM/KDON 102.5 fighting it out in some areas
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The interaction of Bay Area terrain and atmospheric conditions can lead to some odd results. What you might hear in one location will be totally inaudible a mile away or even less.

If I want to pick up anything that broadcasts to the east side of the Oakland hills, all I have to do (right now) is climb up a quarter mile to the top of the ridge at which point I can see Mt. Diablo, and get a different complement of stations, most of which are rarely heard at my house. Sacramento, Stockton, etc. signals have a better chance of making it to my house than something based, say, in Concord, or even Walnut Creek (viz. KKDV).
 
Radiopaw said:
Also, would Alpha picking up HD Radio for KEZR improve this?
Click to expand...
I remember in the early days of HD, when I lived in Newark (East Bay) and tuned to 92.7 on my HD tuner I would get a few seconds of dance music, then the HD would lock and I get country (KTOM from the Monterey Bay). Remember, HD carriers are actually on adjacent channels. So while KEZR and KUDL are on 106.5, KUDL's HD is on the frequencies normally occupied by stations on 106.3 and 106.7. It's very possible you're getting the same thing - where the digital carriers are causing the radio to switch, even if KEZR is stronger than KUDL. The way to prove this would be to either defeat the HD in your radio (it's generally a menu change, but buried) or check when you're in that area with a standard analog radio.

Dave B.
 
Sounds like tropo which seems more common during summer months. It also brings the Bay Area FMs into Sacramento like locals, especially at night.

Both 106.5 stations between South Bay and Sacramento are short spaced, same with KUFX/KRXQ which frequently “duke it out.”
 
As mentioned above likely Tropo. I've had 96.1 KYMX here once via tropo but it's mostly aircraft scatter.

I'm down in the Monterey Bay Area and tropo is common to San Luis Obispo and Broadcast Peak in Santa Barbara.
 
pclover said:
As mentioned above likely Tropo. I've had 96.1 KYMX here once via tropo but it's mostly aircraft scatter.

I'm down in the Monterey Bay Area and tropo is common to San Luis Obispo and Broadcast Peak in Santa Barbara.
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I’ve gotten KYMX too in the same general area that KUDL overpowers KEZR! Every day I can get it for a few mile radius in my car radio. Quite weird.
 
Speaking of interference these are the stations that are fighting each other around West Oakland towards the Bay Bridge and around San Mateo area.

95.3 (KUIC Vacaville vs. K237GZ San Francisco and KLRK Los Gatos)
96.1 (KYMX Sacramento vs KSQQ Morgan Hill/San Jose)
96.9 (KSEG Sacramento vs. KEPT-LP, KQEA-LP and KWAV Hayward, San Francisco and Monterrey)
98.5 (KRXQ Sacramento vs. KUFX San Jose)
102.5 (KDON Woodland/Sacramento vs. KXSF-LP/KSFP-LP San Francisco and KDON Salinas)
106.5 (KUDL Sacramento vs KEZR San Jose)
 
Yep maybe they need to be on different frequencies. The station that KUDL used to be on is Kiss 107.9 now. That station and WFLC is probably what caused Top 40 stations to move toward more gold-based formats.
 
e-dawg said:
Speaking of interference these are the stations that are fighting each other around West Oakland towards the Bay Bridge and around San Mateo area.

95.3 (KUIC Vacaville vs. K237GZ San Francisco and KLRK Los Gatos)
96.1 (KYMX Sacramento vs KSQQ Morgan Hill/San Jose)
96.9 (KSEG Sacramento vs. KEPT-LP, KQEA-LP and KWAV Hayward, San Francisco and Monterrey)
98.5 (KRXQ Sacramento vs. KUFX San Jose)
102.5 (KDON Woodland/Sacramento vs. KXSF-LP/KSFP-LP San Francisco and KDON Salinas)
106.5 (KUDL Sacramento vs KEZR San Jose)
Click to expand...
Don't you mean KSFM on 102.5 in Sacramento?
 
e-dawg said:
Speaking of interference these are the stations that are fighting each other around West Oakland towards the Bay Bridge and around San Mateo area.

95.3 (KUIC Vacaville vs. K237GZ San Francisco and KLRK Los Gatos)
96.1 (KYMX Sacramento vs KSQQ Morgan Hill/San Jose)
Click to expand...
Also the 96.1 LPFM that, at various times, is Alameda Community Radio, Poor Magazine, and Peralta Community College.
e-dawg said:
96.9 (KSEG Sacramento vs. KEPT-LP, KQEA-LP and KWAV Hayward, San Francisco and Monterrey)
98.5 (KRXQ Sacramento vs. KUFX San Jose)
102.5 (KDON Woodland/Sacramento vs. KXSF-LP/KSFP-LP San Francisco and KDON Salinas)
Click to expand...

KSFM is the Sacramento-area station that you're referring to.
e-dawg said:
106.5 (KUDL Sacramento vs KEZR San Jose)
Click to expand...
 
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