ISS HamTV moves to 2369 MHz

The Digital Amateur TV (DATV) station in the Columbus module of the International Space Station has changed frequency to 2369 MHz

Presently, Ham Video is transmitting permanently a “blank” image and no audio in configuration 5:

  • ARISS antenna 43
  • Frequency 2369 MHz
  • Symbol rate 1.3 Ms/s

Reports on reception of blank transmissions are very welcome. Reports can be filed via this webpage - http://www.spaceflightsoftware.com/ARISS_FSTV/submit.php

Participants using the Tutioune receiving software can record as well as stream detailed parameters of the received signal -  http://www.vivadatv.org/

Reports are available - http://www.vivadatv.org/viewtopic.php?f=66&t=294&p=785#p785

New world 24 GHz EME record

EME (Earth-Moon-Earth) amateur / ham radio  operation over a distance of 17,405.6 kms is a new world record for 24 GHz, following a contact between Rex Moncur VK7MO and Charlie Suckling G3WDG.

The successful achievement took place on 5 March 2014, with Rex VK7MO who located to the height Mt Wellington near Hobart to minimise water vapour that attenuates 24 GHz signal, and to take advantage of the Moon being close to Earth.

The Moon had to be at low elevation which meant the signal had lots of atmosphere to travel through.

Australian medium wave beacon heard nationwide

The VK3FI CW beacon on 473 kHz at Mildura in northwest Victoria has had more than 50 reception reports from all over Australia since early this year and will continue its transmissions.

The most distant reports have been from West Australia VK6. Is it also heard in New Zealand. The ZL stations have begun listening for it and expect conditions to improve during the southern hemisphere winter.

Some overseas inquiries have been received asking when it will be on different weak modes, but the intention is to continue the experiment with the home-brew beacon on CW, for a little while yet.

While reports are most welcome, including those who have reception at different times or days, many more are needed.

The band 472-479 kHz is now a secondary allocation in many countries. The beacon encourages use of the new band. A couple of VKs have advised that they are now gearing up for reception.

In Queensland, John Goldfinch VK4FNQ east of Charters Towers was the first from that state to report, followed by Rick Freemantle VK4RF, north of Brisbane, and Dougal Johnston VK4EKA near Toowoomba who recorded reception during lightning activity.

Among those in South Australia is Ian Maxted VK5ZIM at Adelaide. In West Australia Phil Hartwell VK6GX was first to provide a reception report.

He was followed by Peter Zwarecz VK6APZ on a 350 metre long wire at fence height, and then came Derek Zeck VK6DZ.

Noel VK3FI is amazed that his beacon has been heard from VK6 at an average distance of 2400 kms, and as we experience the winter season with longer nights and less lightning activity, reception conditions should improve.

He now has hopes that spurred on by reception reports throughout Australia, the beacon will be detected across the ditch in New Zealand.

Crossing the Tasman Sea would be quite an achievement and is now an aim of Noel VK3FI.

The CW beacon on 473 kHz is on most nights 1100 to 2200 UTC. Reception reports please on email to vk3fi@wia.org.au