2018-07-08

More SSTV images from ISS

The ISS crew resumed transmission of SSTV images for the weekend July 6-8, 2018.



ISS SSTV image on 2018-07-07 at 03:36 UTC

ISS SSTV image on 2018-07-07 at 08:27 UTC

ISS SSTV image on 2018-07-07 at 01:59 UTC


This time the images were better framed, so the full call sign RS0ISS and the caption at the bottom were visible. 

Screen capture of RS0ISS reception using MMSSTV v1.13A


I used again MMSSTV, which supports the special SSTV mode PD120 used by RS0ISS.


ARISS SSTV Award #10816
Also today I received by e-mail the ARISS SSTV Award no 10816 for reporting images received on June 30, 2018 to the the ARISS SSTV gallery and submitting a request for the award on the Application for ARISS SSTV Award form page.





2018-06-30

SSTV images from International Space Station

ISS SSTV image on 2018-06-30 at 09:42 UTC
During the current weekend (June 29 - July 1) the ISS transmits SSTV signals on 145.800 kHz almost continuously. The operation was announced recently on most ham radio information sources, including AMSAT-UK blog

ISS SSTV image on 2018-06-30 at 09:46 UTC

The SSTV mode used is PD120, developed by Paul Turner, G4IJE and Don Rotier, K0HEO (SK) and is described in Classic SSTV.The mode is supported by MMSSTV version 1.13A, but it does not appear in the main mode menu; however if MMSSTV is set in Auto, it recognizes PD120 signals right away, even without an FSKID.

ISS SSTV image on 2018-06-30 at 11:16 UTC

Today I received three images, using my Icom IC-7100 tranceiver and a simple vertical antenna. I use standard FM in the widest bandwidth (FIL1, approximately 15 kHz) without any compensation for Doppler effect. Some image degradation is apparent in the first two image, which is caused by local intermodulation effects.

For ISS tracking I use Gpredict (GNU predict) v2.2.1 on a Linux Mint computer.

Further info:

1. AMSAT-UK: Receive SSTV from Space June 29-July 1 
2. ISS SSTV Reception Hints 



2018-06-28

Ham radio awards 9: CQ WAZ (mixed & SSB)

Today I received an oversize envelope from CQ-Amateur-Radio with two Worked All Zones (WAZ) certificates:

Worked All Zones - Mixed #9432

 
Worked All Zones - SSB #5364


I applied for these to awards in April 2018, when the Logbook of The World system of ARRL started supporting WAZ applications, and I used exclusively LoTW confirmations for both. 

Actually I am only one zone short of WAZ RTTY as well; I only miss Zone 2 (for which I have a paper QSL card), and I shall try to confirm it in the next CQ WW RTTY contest, in September 2018.

See also:

1. LoTW to support Worked All Zones (WAZ) award

2. LoTW Support for CQ Worked All Zones (WAZ) Award Goes Live





2018-06-01

Ham radio awards 8: DXCC on 50 MHz !


Two recent LoTW confirmations for contacts on 50 MHz (S01WS and 7X2TT) got my DXCC total to the magic number 100! Actually I have worked a few more on the Magic Band, but they confirm only with paper QSL cards "via direct ($$$)". 

This will be my 9th DXCC award certificate, plus an endorsement for the 5B-DXCC plaque!


 

2018-05-31