Andreas, DL7AT will be active from Aruba as P4/DL7AT between July 22 to August 6, 2017. QRV on HF bands. QSL via H/c, LoTW.
Archives mensuelles : juillet 2017
All-in-One
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A DATV SDR Experimental TX/RX solution
You will find here the presentation done by HB9DUG Michel during the DATV Forum at HAMRADIO 2017.
The project goal was to have a demonstrator of a software defined radio for DATV
- able to transmit and receive at a minimum, DVB-S standard at low symbol rates
- based on open-source software
- using fully integrated, low-cost, single-board software defined radio
- reproducible by a radio amateur with average knowledge in computer science
The experimental solution described and implemented here is based on the work of
- Charles G4GUO, DATV Express software on linux & Windows
- Ron W6RZ, gr-dvbs, gr-dvbs2 and gr-dvt2 blocks on GNU Radio
- Evariste F5OEO, rpidatv software
- Pascal F4DAV, leanDVB – a lightweight software DVB-S demodulator
Without their software, in deep descriptions on the subject, I would not have been successful on this project !
Please note that the author is not either a Linux, python and script file expert and is therefore asking for your indulgence if the description, python and script files are very basic.
The project files listed below can be downloaded here : All-in-One
- the transmitter script file : dvbs-mpeg2-b200-go.sh
- the receiver script file : leansdr-script.sh
- the GNURadio DVB-S transmitter python file : dvbs-tx-var-v4.py
- the GNURadio Companion DVB-S transmitter file : dvbs-tx-var-v4.grc
- a gift, the GUI interface for leandvb developed by projectgroep.540 : leandvb-gui.py
Good hack !
HB9DUG Michel
D2FJZ – Angola
Paulo, CT1FJZ is again from Luanda, Angola as D2FJZ. QRV on 20m SSB. Length of stay unknown. QSL via H/c.
Z81D – South Sudan
Diya, YI1DZ is again active from Juba, South Sudan as Z81D. Activity on HF bands, SSB. Length of stay unknown. Diya was last active from South Sudan in April 2016. QSL via OM3JW.
Pictures from Friedrichshafen [part 2]
Many thanks to DX-World crew member, Max IK8LOV, who’s visiting HAM RADIO 2017 with friends, and sends more exclusive pictures for readers. Part one can be found here.
RI0LI – Leont’yeva, Bear Islands AS-022
NEWS UPDATE @ 0930z Vasily, R7AA informs the RI0LI team landed Leontiev island AS-022 and plan to be QRV in 2-3 hours. AUGUST 5 – Vasilij, R7AA informs that the RI0LI team will be leaving Cherskij village on the morning of August 6th heading towards Gusmp Island AS-070 by Kolyma river. While approaching Gusmp they will be waiting […]
Pictures from Friedrichshafen [part1]
Although DX-World is not present at HAM RADIO, Friedrichshafen this year, crew member Max IK8LOV visited the fair with friends. He sends the first part of exclusive pictures for DX-World readers. More tomorrow – thanks Max! PS: DX-World will return to Friedrichshafen in 2018 ?
Recevoir la SSTV avec l’ISS
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L’AMSAT-Francophone viens de publier un article sur la réception de la SSTV avec l’ISS : http://site.amsat-f.org/recevoir-la-sstv-avec-liss/ Copyright secured by Digiprove © 2017Original content here is published under these license terms: X License Type:7License Summary:R24RRC – Baidukov Island, AS-114
Since the RI0C expedition to Iony Island is slightly delayed, the team inform DX-World they will now also be active as R24RRC from Baidukov Island AS-114 starting July 15th for 2-3 days. Vasily, R7AL says detailed info will be posted on QRZ.com
BG4TMC – Chongming Isl, AS-136
During the IOTA contest (July 29-30), Chinese ops BA4TB, BG4TMC, BG4TRN & BG4TVT will be active as BG4TMC from Chongming Island AS-136. Operation class: Multi Single Low Power. QSL via BG4TMC.
New Advertiser!
A warm welcome to new advertiser West Mountain Radio. Click on the banner (right side of website) for special discount for DX-World readers. *Specializing in products for amateur radio, DC power distribution and control, as well as R/C hobbies, West Mountain Radio manufactures RIGrunner DC power strips, voltage monitors and tools, and precision battery analysis […]
DX Holiday !
DX-HOLIDAY is a DX holiday and DXpedition holiday-style dedicated website which provides excellent information on a range of pertinent topics such as: organize a DX-holiday in remote area organize DXpedition holiday-style with your family booking and negotiating with hotels obtaining a foreign amateur radio license rent a radio shack and antennas during your holiday travel […]
Change in the DXCC Rules..
Yes, it’s been a while — too long — since I have reached for the keyboard to express some fact and opinion. In July 2004, changes were made to the DXCC List Criteria that — as time would tell — rendered the criteria ineffective. Of immediate importance now — after more than 13 years — is […]
Change in the DXCC Rules..
Yes, it’s been a while — too long — since I have reached for the keyboard to express some fact and opinion. In July 2004, changes were made to the DXCC List Criteria that — as time would tell — rendered the criteria ineffective. Of immediate importance now — after more than 13 years — is […]
3D2T – Fiji
On 16th July, Bill VK4FW will depart Brisbane enroute to Nadi once again. He’s there for 10 days thanks to his sister who has organised a family holiday. Bill will be attempting to activate all of the WFF areas in Fiji. QRV as 3D2T most of the time on CW using a K3.
3D2T – Fiji
On 16th July, Bill VK4FW will depart Brisbane enroute to Nadi once again. He’s there for 10 days thanks to his sister who has organised a family holiday. Bill will be attempting to activate all of the WFF areas in Fiji. QRV as 3D2T most of the time on CW using a K3.
6Y4V, 6Y4F, 6Y4J & 6Y4E – Jamaica
Look for AA4V, N4SF, K8AJA and W4HE to be active from Jamaica as 6Y4V, 6Y4F, 6Y4J and 6Y4E between October 21-31, 2017. Participation also during CQ WW DX SSB contest as 6Y4V (M2 Category).
Bulletin F8REF – 2017 Semaine 28
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Le bulletin F8REF – Semaine 28 est disponible au téléchargement. Version PDF. Version texte.The S21ZED & S21ZED Story
The S21ZED & S21ZEE DXpedition to Bangladesh took place in March this year. Here is their story.
7Y7AI – Cavallo Island, AF-104
NEWS UPDATE – The Radio Club of Djelfa (7X2VFK) with the cooperation of A.R.U.(Algerian Radio-Amateur Union) announces the activation of Grand Cavallo Island AF-104 as 7Y7AI between October 3 to 10, 2017. QRV on HF bands. QSL via 7X2DD.