Subj : Amateur Radio Newsline (B)
To   : All
From : Daryl Stout
Date : Thu Nov 04 2021 21:59:04

EXPERIMENTAL SYSTEM ELIMINATES RFI FOR NAVIGATION SYSTEMS

SKEETER/ANCHOR: Just like the hams, users of navigation systems are also 
constantly battling interference. Now an experimental system promises a 
chance of relief. Kent Peterson, KC0DGY, tells us how it works.

KENT: Imagine a navigation system that doesn't need to communicate with a 
GPS satellite for positioning. Operators of vehicles, including those in 
the military, worry about the potential for spoofing or jamming which is 
always there whenever a signal is transmitted. Scientists are now looking 
at a way for vehicles to self-track, using devices they carry right on 
board, instead of communicating with a satellite. Instead of relying on 
radio transmissions, these devices send lasers into clouds of rubidium gas 
in order to measure a vehicle's rotation and acceleration.

An article on the PHYS.org website describes the device as a [quote] 
"avocado-sized vacuum chamber" [endquote] containing the rubidium atoms 
inside. It's described as a small, practical size with a quantum sensing 
performance that still gets the job done as well as a gyroscope and atomic 
accelerometers. Peter Schwindt, the developer at Sandia National 
Laboratories, claims the device is also as accurate as the atomic clocks 
that interface with satellites to keep them in sync.

According to the scientists, it's not yet ready for prime time. Sandia 
will be monitoring it for at least the next five years.

For Amateur Radio Newsline, I'm Kent Peterson, KC0DGY.

(PHYS.ORG)

**

HISTORIC TELEGRAPHY STATION HONORED BY POLISH MUSEUM EXHIBIT

SKEETER/ANCHOR: There are plans to honor a historic telegraphy center in 
Poland with a special museum exhibit. Ed Durrant, DD5LP, has the details.

ED: A new museum planned in Poland is working on rebuilding a transmitter 
formerly used by the Transatlantic Radio-telegraphic Broadcasting Centre 
in Warsaw. That station once enjoyed one of the highest profiles in 
Europe. Its radio towers were the world's second tallest and the station 
itself enjoyed a role as a busy centre for important communications 
between Europe and the United States. According to a story in the 
American-Polish Eagle, half of the telegrams sent from Europe to people in 
the US were transmitted via this Warsaw station. Its 10 towers stood 126 
metres tall — the equivalent of more than 430 feet - and its two 200kw 
transmitters reliably reached North and South America.

The museum planned by the electronics faculty at the Military University 
of Technology hopes to recognise this station in its array of exhibits and 
with a radio station that will broadcast the historic station's history on 
the short wave frequencies. The station was used during the second world 
war to send messages to Japan and German U-boats by the German occupying 
forces who destroyed it before leaving at the end of the War.

For Amateur Radio Newsline, I'm Ed Durrant, DD5LP.

(THE AMERICAN-POLISH EAGLE WEBSITE, WIA)

**

ARISS INITIATIVES RECEIVE $1.3M GRANT FROM ARDC

SKEETER/ANCHOR: Education is one of the biggest engines driving the 
program known as Amateur Radio on the International Space Station, or 
ARISS. Now ARISS will have even more resources to educate youngsters 
interested in science, technology, engineering, arts and mathematics - as 
well as the the teachers who help them make that connection. A five-year 
grant worth nearly $1.3 million has been awarded to ARISS-USA from Amateur 
Radio Digital Communications. Some of the funds will help ARISS develop a 
wireless electronics technology kit enabling middle and high school 
students to learn more about amateur radio.  The grant will also help pay 
for educator workshops so teachers can help students learn more from their 
use of the wireless kit. Finally, the grant will provide funding for 
contacts planned between students and astronauts during the five-year 
period of the grant. Frank Bauer, KA3HDO, executive director of ARISS-USA, 
called the grant a game-changer, adding that it [quote] "represents a key 
element of our ARISS Two Point Oh [2.0] vision." [endquote]

(ARISS)

**

OFCOM EXTENDS NOTICE OF VARIATION FOR RANGE IN 2M

SKEETER/ANCHOR: There's some good news for amateurs engaged in 
experimentation on 2m in the UK. Jeremy Boot, G4NJH, has the details.

JEREMY: Ofcom is extending approval for the Notice of Variation for 
frequencies between 146 MHz and 147 MHz for an additional year, as was 
requested by the Radio Society of Great Britain. Only Full licence holders 
may apply.

NoV applicants are being asked to recognise that use of the band has 
increased and that NoVs are being made available on a non-interference 
basis. An NoV is also subject to a 90-day period of withdrawal or change, 
according to the RSGB. All NoVs will expire on the 31st of October 2022.

Applicants can visit the rsgb website at rsgb.org to begin the process.

For Amateur Radio Newsline, I'm Jeremy Boot, G4NJH.

(RSGB)
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