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Feb 16

ARISS SSTV Weekend 145.80MHz

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SB SPACE @ ARL $ARLS002

ARLS002 ARISS Plans Do-Over of Slow-Scan TV Transmissions over

February 15 - 17 Weekend

 

ZCZC AS02

QST de W1AW

Space Bulletin 002 ARLS002

From ARRL Headquarters

Newington, CT February 14, 2019

To all radio amateurs

 

SB SPACE ARL ARLS002

ARLS002 ARISS Plans Do-Over of Slow-Scan TV Transmissions over

February 15 - 17 Weekend

 

Amateur Radio on the International Space Station (ARISS) is planning

another popular slow-scan television (SSTV) event in the wake of an

SSTV experiment last weekend, during which signals were reported to

have been weak. Even so, more than 5,500 images were submitted.

Transmissions are scheduled to begin on Friday, February 15, at 0845

UTC and run through Sunday, February 17, at 1725 UTC.

 

"The ARISS team wanted to give the community another opportunity to

download the SSTV images we developed for you, given the weak-signal

situation that occurred last weekend," said ARISS-International

President Frank Bauer, KA3HDO. He clarified that the same 12 images

transmitted last weekend will be used for this weekend's experiment.

 

Bauer said it's not entirely clear what caused the low-signal issue

last weekend. "We believe it may have been either a loose feed-line

cable or an antenna switch that did not fully engage," he said.

"Once the crew reset the system and checked the cabling and

switches, the radio system started to perform nominally."

 

ARISS-Russia team member Sergey Samburov, RV3DR, worked with flight

controllers to schedule ISS crew time to configure the JVC Kenwood

radio to support SSTV operations, which take place from the Service

Module. SSTV images will be transmitted on 145.80 MHz using

SSTV-mode PD120. These can be received using equipment as simple as

a 2-meter handheld radio, a scanner that covers that band, or even

an online WebSDR receiver. Copying the images is as simple as

connecting the receiver's audio output to the audio input of a

computer running free software such as MMSSTV.

 

Transmissions will consist of eight images from the NASA On The Air

(NOTA) celebration and four ARISS commemorative images. Received

images can be posted and viewed online. ARISS offers an ARISS SSTV

Award for those who receive and decode at least one SSTV image in

the session.

 

As always, this SSTV event is dependent on other activities,

schedules, and crew responsibilities on the ISS and are subject to

change at any time. Check for updates on the ARISS or AMSAT

websites, the AMSAT-BB reflector, the ARISS SSTV blog at,

http://ariss-sstv.blogspot.com/ , and the ARISS Facebook page, as

well as Twitter at, @ARISS_status .

NNNN

/EX

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