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1
Feed Setup Pictures / Re: Updated KONT Feed
« Last post by N6RFB on January 22, 2022, 02:06:42 PM »
Not sure of the specifics as the audio interface was provided by Dave, the site administrator, along with everything else except the scanner and antenna.  Maybe he'll see this and can answer your question.
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Feed Setup Pictures / Re: Updated KONT Feed
« Last post by flunkat on January 22, 2022, 01:21:48 PM »
Looks great!
What audio device are you using to go between the BC355N and the Raspberry Pi?
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Listener Forum / KONT New Listener Record
« Last post by N6RFB on January 22, 2022, 11:27:26 AM »
Got up this morning and checked my feed to find 11 listeners.  The highest I've ever seen! Glad to see the usage.  I suspect it may have to do with the reverse ops going on.  If your new to my feed, it's located in Corona and you can see pictures on the Feed Setup page.  Also, do any of you spot at ONT and from where.  73s de N6RFB.
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Aviation News (General) / American Airlines Just Canceled a Flight Mid-Air—Here's Why
« Last post by KB4TEZ on January 21, 2022, 06:43:04 AM »
https://bestlifeonline.com/american-airlines-diverted-flight-mask-news/

WOW !

A DISRUPTION FORCED THE CREW TO DIVERT THE PLANE BACK TO ITS STARTING POINT.

Millions of passengers have been left stranded at airports over the past month, as every major U.S. airline has been hit with flight delays and cancellations. By the first week of January, nearly 20,000 flights had been canceled to and from the U.S. since Christmas Eve, largely due to ongoing staffing shortages because of the Omicron variant, but also unpredictable winter weather, per CNBC. Some airlines have preemptively dropped scheduled trips over the next two months, but many airlines are being forced to cancel flights last-minute. And recently, passengers on one flight found out what it's like to have a flight canceled when it's already en route to its destination. Read on to find out what just caused an American Airlines flight to get diverted.

An American Airlines flight was about an hour into its journey from Miami to London on Jan. 20 when it was turned around, The New York Times reported. Flight trackers from FlightAware show that the Boeing 777 plane, which was carrying 129 passengers and 14 crew members, was roughly 500 miles into its 4,400-mile flight when it reversed course off the coast of North Carolina. Flight AAL38 returned to Miami International Airport, where police officers were waiting, according to the newspaper.

According to American Airlines, a COVID mask dispute is what caused the flight's abrupt cancellation. Under a mandate from the Transportation Security Administration (TSA), all passengers traveling with U.S. airlines are still required to wear a face covering aboard flights, through at least March 18 of this year.

"American Airlines flight 38 with service from Miami (MIA) to London (LHR) returned to MIA due to a disruptive customer refusing to comply with the federal mask requirement," the airline said in a statement, per CNN. "The flight landed safely at MIA where local law enforcement met the aircraft. We thank our crew for their professionalism and apologize to our customers for the inconvenience."

The Miami-Dade Police Department escorted the non-compliant passenger, who officers described as a woman in her 40s, off the aircraft upon arrival back to the airport, as reported by Insider. Miami-Dade Detective Argemis Colome told the news outlet that the passenger was not detained or charged as a result of the incident.

"She was escorted off the plane, but there was no further incident after that," Colome said. "Her outcome was pretty much dealt with by the American Airlines staff. They dealt with that administratively and that was it."

The passenger has been banned from flying with the airline.

American Airlines said the traveler has been banned from flying with the airline, pending investigation. The woman was placed on the airline's "internal refuse list," which operates as a no-fly list for unruly passengers, particularly those who refuse to follow the mandatory mask policy. This is not the first time American Airlines has banned travelers for not wearing coverings aboard their planes, but the carrier has refused to reveal just how many people are on its list.Other U.S. airlines have their own records as well, with Delta Air Lines having about 1,200 passengers on its internal no-fly list as of May 2021, Frontier having more than 830, United having 750, and Alaska Airlines having 542, according to the Los Angeles Times.

Mask incidents on planes are hardly uncommon these days. Out of 5,981 unruly passenger reports from airline crews in 2021, 4,290 were related to masks, according to the Federal Aviation Administration (FAA). And while numbers appear to already be lower at the start of this year compared to the record highs seen this same time last year, these issues are still occurring. The agency has received 151 unruly passenger reports as of Jan. 18, with 91 of these incidents being related to face masks.

"Let me be clear: I have zero tolerance for dangerous behavior on airplanes," FAA Administrator Steve Dickson tweeted on Dec. 16. "It could cost you a big fine or jail time. Wear a mask, respect the crew and follow their instructions. They are there for your safety."
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Feed Setup Pictures / Re: KAUS (#1) feeds setup
« Last post by flunkat on January 21, 2022, 12:13:27 AM »
I just wanted to describe my setup (KAUS #1 feeds) in more detail since I got a couple of questions privately. Hopefully this info is useful to others trying to work through setup issues. If we get a discussion going it might help with my own setup issues. I’d love to learn more about everyone else’s setups. I’ve been reading the forums for new ideas. Just to introduce myself, I’m a commercially-rated pilot and an engineer, and I fly GA out of KAUS.

My site location:
-2.4 Nm from the official GPS coordinates for the field (KAUS).
-2.2 Nm from Tower and Tracon facility (has Tx antennas)
-1.6 Nm from closest facility antenna.
-Airfield elevation is on average about 500 feet MSL and my site at 430 ft MSL. I am lower than average field elevation and this has always been an issue in regards to catching ground level transmissions. I still catch like the majority (95%+) of the ground level transmissions with good quality though. I can catch all airplanes, but the ARF and Maintenance guys in their pickup trucks are a challenge.

The Frequency Environment:
   -   5 approach/departure frequencies:
      -   118.15 (Southeast) rarely heard.
      -   119.0 (North and west) heavily used.
      -   120.875 (South) not used often.
      -   127.225 (East) heavily used.
      -   125.325 (Final approach) heavily used.

   -   Tower - 121.000
   -   Ground - 121.900
   -   Clearance Delivery - 125.500

   -   ATIS - 124.400
   -    FBOs - 130.225, 130.375, 130.6

My Antenna:
1/2 wave J-pole (centered on 123.0 MHz) that I constructed out of 3/4” copper tubing. Mounted on roof peak at 33 ft AGL or 463 ft MSL. Still lower than field elevation. I also built a 5-element Yagi but I’m currently not using it since its too conspicuous and I don’t want to run afoul of my community HOA rules.

Feedline and upstream setup:
- Gas tube lightning protector about 5 ft from antenna. Connected directly to ground rod with 8 gage copper. Antenna mast is also directly grounded. The two other antennas in the picture on either side of the J-pole are for ADSB. I feed Flightaware and FlightRadar24. They were interested in my location since I can provide ground level traffic data (Austin-Bergstrom currently does not have ASDE-X ground radar).
- 2 FM radio band filters in series. One from GPIO labs and a Flamingo (thanks to Dave). There are a couple of very powerful FM transmitters near my site, so these help a lot.
- Filtered low noise airband preamp from GPIO labs.
- I use just RG6Q for the feed lines (impedance is mismatched but I haven’t noticed it affecting VHF Rx). I have not measured SWRs, which probably doesn’t matter anyway since its only Rx.
- 2-way passive splitter and sent to two different setups in my house.

Demod setup #1:
- Antronix 8-way lossless splitter/amp.
- 4 x Nesdr Smart SDRs (supplied by Dave)
- Powered USB hub (supplied by Dave)
- Raspberry Pi running rtl_airband (supplied by Dave)
- Details about rtl_airband configuration available on request. I worked a lot on this including looking at the source code to understand some parameters.

Demod setup #2:
   - Antronix 8-way lossless splitter/amp. Grounded to power supply to remove ground loops.
   - 4 x RTL-SDR Blog V3 SDRs, attached via powered USB hub to a Linux machine
   - rtl_airband on Linux machine  (details of config/settings available on request)
   - 4 x Uniden Bearcat BC355N radios

Uniden Bearcat hardware radios setup:
   - 4 x Line-to-mic level attenuation cables for audio out (-35dB)
   - 4 x ground loop isolators
   - 4 x Roccat Juke USB sound cards
   - These are plugged into the Linux machine running darkice (details of config/settings available on request)
   - 4 hardware radios cover the following frequencies
      (1) Scan mode, all approach frequencies (118.15, 119.0, 120.875, 125.325, 127.225)
      (2) Ground control (121.9)
      (3) Tower (121.0)
      (4) Clearance Delivery (125.5)

I do also have an SDRPlay RSPDuo which I normally play around with, but its been a hassle trying to get it to work consistently on Linux with SoapySDR. The 10Mhz sample rate is amazing though.

Would love to hear from others with ideas. FYI, I’m not proficient in radio stuff. I’m not a HAM operator nor am I an electrical engineer. I’m an Aerospace and Software engineer. I’m also a commercially-rated pilot with a passion for anything aviation.
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Listener Forum / Re: is this really worth it?
« Last post by dave on January 20, 2022, 01:22:10 PM »
Things are not always what they seem. :-)

Many or all of the feeds like the ones you refer to are provided by SDR receivers which are already covering other frequencies (more "valuable" ones). So they essentially come for free - so why not have them?
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Listener Forum / is this really worth it?
« Last post by Chananya Freedman on January 20, 2022, 01:08:52 PM »
i start every morning by looking at the website home page to see what the new feeds are. as i look this morning, i see some feeds for Austin FBOs. is that kind of thing really worth it? is it busy enough to get a lot of listeners? this is not a complaint. i just find it a little strange. comments will be appreciated.   
8
https://www.euronews.com/2022/01/20/watch-live-teen-pilot-due-to-land-in-belgium-after-record-breaking-flight-around-the-world

A teenage pilot has become the youngest woman to fly solo around the world, landing in Belgium after an epic five-month journey.

Zara Rutherford touched down in the town of Kortrijk, 90 kilometres west of Brussels, on Thursday afternoon - the same airfield where she embarked on her journey last August.

At 19 years old, the British-Belgian pilot is 11 years and 11 months younger than American Shaesta Waiz who was 30 when she set the existing record for the youngest woman to circumnavigate the world solo back in 2017.

“Growing up, I didn’t see many other female pilots. I always thought that was really discouraging,” Zara Rutherford told reporters after landing her single-seater Shark sport aircraft at Egelsbach, an airfield a few kilometres from Frankfurt Airport, Germany’s busiest.

“So I’m hoping to encourage more girls to go into aviation and kind of show a friendly face, so that if a girl likes aviation and she sees me, she knows she’s not the only one."  Rutherford’s route around the world took her across Iceland to Greenland and down the east of Canada and the USA through Central America to Colombia then back north to Alaska.

She flew over Russia, Korea, Indonesia and India to the Middle East before heading back to Europe in her Shark Aero aircraft which is designed in Czechia and built-in Slovakia. It can reach speeds of up to 295 kilometres per hour.  Along the way, Rutherford had to deal with biting cold over Russia and narrowly avoid North Korean airspace.

The teenager has recently completed her high school studies in mathematics, economics and physics and hopes to study computer science or computer engineering at university.

“In both aviation and STEM (science, technology, engineering, mathematics) the gender gap is huge” Rutherford wrote on her website.

“My aim is to encourage girls and young women to pursue their dreams and promote aviation and STEM-related careers. Only 5% of commercial pilots and 15% of computer scientists are women.”
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Aviation News (General) / Nearly home: Teen pilot lands in Germany on global flight
« Last post by KB4TEZ on January 19, 2022, 10:55:28 AM »
https://www.mystateline.com/news/international/nearly-home-teen-pilot-lands-in-germany-on-global-flight/

EGELSBACH, Germany (AP) — Teenage pilot Zara Rutherford landed in Germany on Wednesday on the penultimate stop of her bid to become the youngest woman to fly around the world solo.

Hopefully one day away from sealing the record, the Belgian-British 19-year-old said that she’s looking forward to getting home after “a long five months.”

Rutherford is due to land Thursday in Kortrijk, Belgium, where she embarked on her trip on Aug. 18. American aviator Shaesta Waiz was 30 when she set the existing record for the youngest woman to circumnavigate the world solo in 2017.

“Growing up, I didn’t see many other female pilots. I always thought that was really discouraging,” Rutherford told reporters after landing her single-seater Shark sport aircraft at Egelsbach, an airfield a few kilometers from Frankfurt Airport, Germany’s busiest. “So I’m hoping to encourage more girls to go into aviation and kind of show a friendly face, so that if a girl likes aviation and she sees me, she knows she’s not the only one.”

She was initially supposed to finish her trip on Monday, but bad weather has caused several delays during the journey.

Rutherford’s flight saw her steer clear of wildfires in California, deal with biting cold over Russia and narrowly avoid North Korean airspace. She said she’s “really excited” to get home.

“Now to think that I’m home tomorrow, I don’t think I’ve processed it — it still feels strange, I still feel like I should be months away,” she said. “I’m happy that I’ve done it, but it’s been really difficult.”

“There’s been amazing moments, but then there’s been moments when I have feared for my life and I would not want to do that again,” Rutherford added.

“Once I’m home, I think I’m going to sleep for about a week” and then talk about her experiences, she said. She hopes to go to university to study engineering in September, in the U.K. or the U.S.

The men’s record for the youngest solo round the world flight is held by Travis Ludlow of Britain, who set that benchmark last year at 18.
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Feed Setup Pictures / KAUS (#1) feeds setup
« Last post by flunkat on January 18, 2022, 04:29:26 PM »
My setup for KAUS #1 feeds. Mix of SDRs and Bearcat BC355N radios.
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