Colleagues, I was very happy to see the discussion regarding the use of television feedline and F-connectors. I thought I was the only ham in the universe using that combination. While it's true that
This article describes the history of the development of directional MF antennas on our neighbor, the AM broadcast band. 73, Jeff KH6O https://www.radioworld.com/columns-and-views/roots-of-radio/the-
I'm surprised that the broadcast industry is just discoving this topic. My library of decades-old antenna handbooks covers this quite well: https://www.radioworld.com/show-news/nab-show/why-well-dres
If you're running a Gates xmtr on 160, then you might be interested in this: https://www.radioworld.com/columns-and-views/roots-of-radio/gatesairs-100-years-of-history-in-pictures?utm_source=SmartBri
Colleagues, depending upon the age of our towers, we might find ourselves in this predicament (on a smaller scale of course): https://www.radioworld.com/news-and-business/headlines/paint-chips-from-t
Colleagues, I subscribe to the digest version of this list and keep seeing the same content repeated many times. Please trim other folks' comments when you reply (just as I did -- you see nothing inc
As a practicing mathematician, I can assure you that it's impossible for a computer model to capture *every* possible variable involved in real-life physical situations. We see that in not only the a
Colleagues, Have any of you attempted to get on the 630 meter band? As a US Coast Guard radioman in the 1970s, 500 kHz was the worldwide maritime CW calling frequency; almost all night-time traffic o
Good morning MRC, If a particular wide-band mode has caused the noise floor on 160 to rise 10-20 dB to the point where only QRO++ stations can be copied, I would say that this certainly is the prope
Ed's comment reminds me of the AM broadcast band vertical antennas mounted on concrete foundations located in the back-waters of San Francisco Bay -- directly atop salt water mashes. What an outstan
This is radio KGO located in the backwaters of San Francisco Bay. 73, Jeff KH6O Attachment: Antennas.on.saltwater.png Description: PNG image _________________ Searchable Archives: http://www.contesti
My first semiautomatic key (early 1960s) was a Japanese Hi-Mound bug with the plastic cover. If you have one to sell please let me know! 73, Jeff KH6O _________________ Searchable Archives: http://ww
Colleagues, I purchased a 500 foot roll of Digiwave coax via Home Depot. It's double shielded (braid and foil) and is sweep tested up to 3.5 GHz. I'm unable to determine the country of origin. Any co
It's always interesting to hear how conditions briefly change during an eclipse: https://en.wikipedia.org/wiki/Solar_eclipse_of_October_14,_2023 http://www.arrl.org/news/solar-eclipse-qso-party-seeks
Attached is an interesting research paper by Clarence Beverage. -- 73, Jeff KH6O Attachment: NEW_AM_BROADCAST_ANTENNA_DESIGNS_HAVING_FIELD_VALI.pdf Description: Adobe PDF document _________________ S
Andree -- wonderful to see someone else using F-connectors and 75 ohm feedline! 73, Jeff KH6O -- Message: 6 Date: Fri, 5 Jan 2024 18:13:32 +0000 (UTC) From: Andree DL8LAS <dl8las@aol.com> To: topband
*Amateur Radio Operators Needed for Help with Solar Eclipse Project* The Case AmateurRadio Club, W8EDU <https://www.facebook.com/W8EDU/>, the club station at Case Western Reserve University in Clevel
I'd like to see a version of this for 160M: https://www.radioworld.com/news-and-business/headlines/wqvram-is-granted-cp-to-use-heba-antenna-at-night -- 73, Jeff KH6O / 6 _________________ Searchable