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Post AvSCMSYtQHW5KiWLk8 by [email protected] |
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More posts by [email protected] |
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Post #AvQZopOS2RXYskDGOu by [email protected] |
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KNBR (AM 680) Antennas, Redwood City, CA, 2024All the pixels, less risk of elec… |
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Post #AvQZpywc0u3KnFk30K by [email protected] |
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Rodenstock 50mm/4.0 HR Digaron-W lens (@ f/6.3), Phase One IQ4-150 digital back… |
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Post #AvQZu9xyyY2g8VNIbA by [email protected] |
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@mattblaze is that a capacitance hat on top of that antenna? |
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Post #AvQZvFY7hhlHjznbjU by [email protected] |
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KNBR is a 50KW "Class A" (formerly "clear channel") mediumw… |
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Post #AvQZwFf0mC6wNJUz4q by [email protected] |
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Mediumwave (AM) broadcast radio uses lower frequencies than other modern broadc… |
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Post #AvQZydjkERptcqqr0C by [email protected] |
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The taller tower (550 feet) at right is the main KNBR antenna, built in 1949. I… |
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Post #AvQa1etoMo066E029g by [email protected] |
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This distinctive stacked dual antenna arrangement is used to lower the radiatio… |
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Post #AvQa3uEALbsEDbakgC by [email protected] |
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The antenna field is in the final approach and takeoff flightpath for SFO airpo… |
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Post #AvQa5GQ7JxLRKzpTyC by [email protected] |
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Note, important safety tip: you can get closer to this tower without clearly tr… |
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Post #AvQa7bzE6oaMnsN4KG by [email protected] |
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@0xF21D Yep; see the thread |
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Post #AvQaFCVOjNaM5l2Oiu by [email protected] |
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@mattblaze LOL having once been unable to start my car at Mt. Wilson, broadcast… |
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Post #AvQaGAgoy2NEkYqMrI by [email protected] |
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@mattblaze that's awesome! |
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Post #AvQaklCFne5Sf68F5E by [email protected] |
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@0xF21D I really like this antenna because it combines two relatively uncommon … |
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Post #AvQbDeeXCztElS8cJk by [email protected] |
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@mattblaze Oh good. My fear of heights is saving me from another previously-unk… |
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Post #AvQbHkIKAt2vQ7hSxk by [email protected] |
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@ai6yr @mattblaze you might like these pictures. This is the inside of a AM pha… |
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Post #AvQbSvE1sINYVU1Jyq by [email protected] |
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@mattblaze calculating wind load for that must have been fun. |
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Post #AvQcQToWuzIWrpUbS4 by [email protected] |
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@0xF21D @ai6yr Oh, that's awesome.The coolest site I've been to (sadly … |
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Post #AvQeOlSiX0wQvnbF68 by [email protected] |
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@mattblaze I was surprised that they operate in the 441m wavelength space, mean… |
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Post #AvQeTlfBDB6h0DoZYu by [email protected] |
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@mikewas Way down there: 540-1700 kHz. |
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Post #AvQf3aoX1fGbmOGtzU by [email protected] |
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@mattblaze Yeah. I should know better but never really thought about it. |
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Post #AvQfFovqMTVR2ZWRcm by [email protected] |
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AM broadcast is a technically interesting and somewhat endangered medium. The l… |
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Post #AvQfp9TDzZT2sHz1hg by [email protected] |
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The rapid decline of local content on the mediumwave bands has considerably red… |
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Post #AvQgBVYSYzBxjt5mHw by [email protected] |
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@mattblaze Sadly, the Irish AM LW transmitter was shut down in 2023. I see ther… |
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Post #AvQgGJgE8mTIMH1Blg by [email protected] |
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@dwmalone Yeah, the BBC station has been "about to go off the air" fo… |
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Post #AvQgIx3ai30p3wCeJc by [email protected] |
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@mattblaze Interesting that the guyed tower narrows at the base. Does it effect… |
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Post #AvQgMtUzsbunBatyuO by [email protected] |
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@davebiff Yeah, it's insulated from the ground. |
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Post #AvQgRHb6DyPj5HqhBQ by [email protected] |
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@davebiff Alt text fixed; thanks! |
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Post #AvQgUo2G4pfcYeESmW by [email protected] |
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@mattblaze I think the shorter antenna was the shortwave broadcaster KGEI (dorm… |
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Post #AvQgXOGIMJy3UW1vsG by [email protected] |
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@jeffluszcz No, they had their own antenna field next door. |
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Post #AvQh0JIPtu2AUJoRc0 by [email protected] |
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@mattblaze Ah! thanks. I see an aerial photo showing that here https://bayarear… |
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Post #AvQhDDTOrSAKC36Vnc by [email protected] |
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@mattblaze I keep meaning to write something to decode the phase modulated sign… |
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Post #AvQho7WhvwIiSsFSbo by [email protected] |
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@mattblaze agreed, and many of those unique, local broadcasters are operating a… |
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Post #AvQkDQOz5lTE9apVGS by [email protected] |
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@mattblaze I'm fascinated by the cap hat, specifically why we don't see… |
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Post #AvQmzWH6l966B1CsM4 by [email protected] |
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@mattblaze Does a signal that strong pose any danger of damage to (average) rec… |
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Post #AvQmzWOYJT3IY6goxU by [email protected] |
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@cazabon I wouln't right up to the tower with a radio that I cared too much… |
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Post #AvQnChv4mBW03ZBpa4 by [email protected] |
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@gilester45 The hats aren't as efficient as a proper length antenna; they s… |
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Post #AvQnjJsrA5B14DhbqS by [email protected] |
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@dwmalone @mattblaze We never had LW on this side of the Atlantic because of th… |
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Post #AvQnjJysnfztMuWQEq by [email protected] |
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@wollman @dwmalone And I'm reminded of WGU-20 on 179kHz, which was intended… |
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Post #AvQoFWZlVZUJhJ83qC by [email protected] |
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@mattblaze Yeah, I remember very well growing up (and into my early adulthood) … |
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Post #AvQp7FoU2zU1LYdLk0 by [email protected] |
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@mattblazejust tell me you'll pay shipping (from Pa) and it's yours. |
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Post #AvQr64GlgIDJAAQRuq by [email protected] |
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@cpm very kind, and I’m drooling! But sadly, space. |
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Post #AvQtT7IQnFhp7SK0lU by [email protected] |
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@mattblaze The graveyard still produce a glorious at night...and this past wint… |
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Post #AvQtl31BREdl3ynwGW by [email protected] |
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@pirateradiomap I can regularly (in summer, overnight) receive identifiable sta… |
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Post #AvQz4eNlF7osDdX12u by [email protected] |
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@mattblaze I got hooked on AM DXing as an 8-year-old. I was riding wiht my dad … |
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Post #AvQzuZdK91wSY4ZOiG by [email protected] |
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@mattblaze In case anyone is morbidly curious what happens when you touch a AM … |
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Post #AvR4JJarJhb1rHTCZE by [email protected] |
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@mattblazeindeed |
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Post #AvRFZgH7qyJsKkFKiW by [email protected] |
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@mattblaze "produce a glorious mush" that is |
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Post #AvRFZgNrRvhufdOiDQ by [email protected] |
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@mattblaze Also I miss the clear channel (the band allocation, not the company)… |
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Post #AvRFZgTt5WWmyKDWbo by [email protected] |
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@pirateradiomap and WWVA’s overnight trucking show. |
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Post #AvRGIOyD2Xr9h5isim by [email protected] |
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@mattblaze With Big John Trimble! My favorite though was Big John Parker, the w… |
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Post #AvRIkrb0P56QUYZKSW by [email protected] |
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@mattblaze I used to enjoy listening to radio stations from over a thousand mil… |
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Post #AvRLoCemr6EgXhcbdQ by [email protected] |
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@mattblaze And he was a collector of vintage country music on Sunday mornings b… |
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Post #AvRLoClATNL8rUbha4 by [email protected] |
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@mattblaze I've probably got about 100 hours worth of the Road Gang on cass… |
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Post #AvRLoCru4KjBCNl54y by [email protected] |
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@pirateradiomap Oh, that definitely needs to b e online! |
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Post #AvRPY8LVW19sM7CG1o by [email protected] |
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@mattblaze Yeah! I've got some digitizied...I'll try to put them up soo… |
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Post #AvSCMSYtQHW5KiWLk8 by [email protected] |
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@mattblaze on the road in Canada, often CBC's mediumwave broadcast is the o… |
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Post #AvSiUEbAQ2vssPKrzs by [email protected] |
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@pirateradiomap @mattblaze oh, I’d love to hear more of those! I listened and… |
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Post #AvSiUEibyMt5FUoobI by [email protected] |
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@paulpalinkas @mattblaze https://soundcloud.com/shortwaveology/wwl-the-road-gan… |
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Post #AvSiUEphY0YhbU8TeS by [email protected] |
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@pirateradiomap @paulpalinkas Thanks! |
