IK8LOV

HamRadio news & views on Propagation, Antennas, Homebrew ...

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The Voice of Russia invades 40 m.

Check on 7200 kHz and listen to the strong signal of The Voice of Russia. From St. Petersburg (RUS) the Russian BC Radio Station started its transmissions since February 1st, 2011.

Ulrich Bihlmayer DJ9KR, Vice Co-ordinator IARU-MS Region 1, reported the intrusion in the last IARU Monitor System bulletin of Feb 03, 2011. Moreover he invites everybody to write a Complaint to the respective National Telecommunications Authorities and email to the Russian Embassy too.

This is a screenshot of The Voice of Russia on 7.200 MHz received from Italy, few minutes ago.

A sample soundfile of the BC Radio (from IARU Region 1 Monitoring System)

In Italian language on www.ik8lov.com

Filed under Voice of Russia 7200 kHz 40 m

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Illegal intruders in Amateur Radio bands 2010

New report from IARU about 2010 illegal intruders on Hamradio bands in Region 1/Europe.

Among all charts in the document, a couple of them are particularly representative for my own opinion.

It shows the situation on 40 m. Still a lot of broadcast stations invading our band expecially from Africa and Asia. Sound of Hope is indeed from China. Fortunately OTH Radars aren’t so much like in the past.

If we give a look to all HF spectrum, 10 m is the most outraged among all Amateur Radio bands. 80m, 20m…follow in the list.

Let’s defend and protect our bands from intruders. Let’s join IARU Monitoring System.

Useful links:

IARU Illegal Intruders Report
IARU Monitoring System page

Italian version here: http://www.maxlaconca.com/ik8lov/1454/intrusioni-illegali-bande-radioamatori-pubblicato-rapporto-2010/

Filed under radar, oth broadcast radio amateur radio bands intruders illegal

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NASA asked amateur radio operators’ aid

From Physorg.com:

Jan. 19 at 11:30 a.m. EST:

Amateur ham operators are asked to listen for the signal to verify NanoSail-D is operating. This information should be sent to the NanoSail-D dashboard at: http://nanosaild.engr.scu.edu/dashboard.htm .
The NanoSail-D beacon signal can be found at 437.270 MHz.

NASA thanks:

Thanks to all the ham radio operators for their help in following NanoSail-D. A beacon signal has been received and NanoSail-D appears to be operating nominally and is scheduled to unfurl at 10 p.m. EST. The NASA team will confirm the sail has deployed with a ground based image as soon as it is available.

Tweets on NanoSailD’s Twitter channel:

PA3GUO published a very interesting video showing how to receive telemetry data from the satellite using SDR

…a suggestion for FunCube Dongle owners! ;)

For Italian readers:

http://www.maxlaconca.com/ik8lov/1427/nasa-aiuto-radioamatori-satellite-smarrito/

Filed under NASA NanoSail-D Satellite pa3guo sdr funcube

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Science is built up with facts, as a house is with stones. But a collection of facts is no more a science than a heap of stones is a house

La scienza è fatta di dati come una casa di pietre. Ma un ammasso di dati non è scienza più di quanto un mucchio di pietre sia una casa.

Jules Henri Poincaré

Filed under Jules Henri Poincaré scienza science facts dati

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Problems on the Solar Dynamic Observatory?
A screenshot of “The sun Now” page, right now.

UPDATE - The answer:

Every three months (plus/minus) we do some calibration maneuvers. These are fun and always give us some entertaining images. Today  at 13:15 UT, the EVE Field-of-View Instrument Calibration Maneuver  began. This takes one hour and 31 minutes to complete and is conducted  roughly every three months on-orbit. The EVE FOV raster scan consists of  25 points on a 5x5 square grid.At 16:30 UT, the HMI/AIA  Flat-field (Off-points) Maneuver began. This takes 2 hours and 50  minutes to complete and is typically always done with the EVE FOV. The  is offpoint by approximately 15 arcminutes in 20 steps.This will  help us check-up on the instrument calibration. In general, we like to  do the HMI/AIA Flat-field at the same time as the EVE FOV for  comparison.Credit: NASA SDO

Problems on the Solar Dynamic Observatory?

A screenshot of “The sun Now” page, right now.

UPDATE - The answer:

Every three months (plus/minus) we do some calibration maneuvers. These are fun and always give us some entertaining images.

Today at 13:15 UT, the EVE Field-of-View Instrument Calibration Maneuver began. This takes one hour and 31 minutes to complete and is conducted roughly every three months on-orbit. The EVE FOV raster scan consists of 25 points on a 5x5 square grid.

At 16:30 UT, the HMI/AIA Flat-field (Off-points) Maneuver began. This takes 2 hours and 50 minutes to complete and is typically always done with the EVE FOV. The is offpoint by approximately 15 arcminutes in 20 steps.

This will help us check-up on the instrument calibration. In general, we like to do the HMI/AIA Flat-field at the same time as the EVE FOV for comparison.

Credit: NASA SDO

Filed under SDO Solar Data Observatory