Oscar M7OJA

Amateur Radio Station

Author: M7OJA

  • Good Working Conditions on HF

    This week especially, working conditions on HF have been a lot better than usual. Even with a very modest antenna and low power, DX contacts have been achievable. This has also been helped by a range of DXpeditions at the moment, increased portable activity through schemes such as Flora Fauna (WWFF), Parks on the Air (POTA) and Summits on the Air (SOTA). There have also been several special event stations running recently.

    The most important factor, however, is the fast approaching peak of Solar Cycle 25, giving us improved propagation and many DX opportunities.

    You can see my daily snapshot HERE to see for yourself!

    DXpeditions

    At the moment, there are two major DXpeditions running. The first is V73WW, Marshall Islands. The second is VK9XU, Christmas Island. The links to both of their websites are below:

    V73WW

    VK9XU

    Special Event Stations

    There are a number of special event awards, provided by the Hamaward system. With this system, QSOs are automatically uploaded by the DX station (you do not need to submit your logs or QSL cards). Over the course of the award, you can work each participating callsign once per band, mode and day. This means you can accumulate a number of points per day. At the end of the award, your points are added up, and there is a feature to download digital QSL cards as well as a diploma if you have successfully scored enough points. Participating stations will provide an embedded log search in their QRZ page, and you can check how many points you have accumulated. The awards currently running are as follows:

    PZK-IARU

    This award is celebrating the 95th birthday of the PZK organisation and the 100th of the International Amateur Radio Union (IARU). The 1st round of the contest runs from the 17th Feb 2025 – 3rd Mar 2025.

    Please see the link HERE for more info.

    VOLTA

    The VOLTA contest is running from Feb 15th 2025 – Feb 23rd 2025. The award is to mark the 27th Volta International Memorial Day.

    Please see the link HEREfor more info.

    Marconi (IR0RRAI)

    The IR0RRAI award is to celebrate the 150th birthday of Marconi. The contest runs from Feb 15th 2025 to Mar 16th 2025.

    Please see the link HERE for more info.

    Terni, City of Love (II0LOVE)

    The Terni, City of Love award is running from Feb 01st 2025 – Feb 28th 2025 to celebrate St. Valentine’s Day.

    Please see the link HERE for more info.

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  • Receive Images from Space – Fram2HAM

    During February, the International Space Station (ISS) has been performing a test called Fram2Ham in preparation for the first human space flight in polar orbit. The test reduced the power of the space station’s transmitter from 25w to 5w, and transmitted a series of images via Slow Scan Television (SSTV).

    I have enjoyed the test, and received these images from space.

    Equipment – Yaesu FT-991a, Diamond X-30 co-linear vertical for VHF/UHF, MMSSTV.

    The images are shown in the gallery below:

    You can find out more about the mission on the website HERE (link opens in new tab).

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  • Good DX on 10m

    Today, 18/02/2025, conditions have been far better than average on 10m. Over the course of about 5 hours, I have worked into the US, several Caribbean stations and South America on FT8/FT4

    Stations worked today

    Pleased to have worked Martinique, Chile and Curacao for the first time, and QSL cards have been/will be requested.

    Map of today’s QSOs on 10m.

    Equipment and working conditions can be found HERE.

    Below is a graph of all contacts on 17/02/2025 by country count:

    73 de M7OJA!

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  • What would you like to see next?

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  • POTA Gold Hunter

    Very pleased to receive my POTA Gold Hunter award this morning. Thank you to all activators for the points…

    2025 02 16 01 54 06 m7oja pota gold hunter
    POTA Certificate
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  • New QSL cards!

    This morning, the postman brought my new batch of QSL cards with a fresh design thanks to Tony LZ1JZ. I will be sending an initial batch of cards over the coming days. If you would like to request a card, please use the Clublog OQRS service. You can request a free bureau card, or make a contribution to the postage for a direct card.

    To use Tony LZ1JZ’s QSL design and print service, visit his website HERE (link opens in new tab).

    QSLing is one of my favourite parts of the hobby. It brings me pleasure to receive, send and collect cards. If you would like to get started with QSLing but don’t know how, you can visit my guide HERE (link opens in new tab).

    462565608 2073259563179367 8276768831072686730 n
    My new and improved QSL card design. – M7OJA
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  • 9X2AW Dxpedition

    Today, 13th February 2025, I worked Harald 9X2AW during his Dxpedition to Rwanda. On 17m FT8, his signal in the North East of England was -19. His aim is to provide an opportunity for stations to get a new country in the log. He was very patient on the air as QSB meant we had to repeat our signal reports several times. However, after around three minutes, I got the final “73” and could breathe a sigh of relief. He is active until 15/Feb/2025 in Rwanda and QSL is via LoTW or direct paper QSL via M0OXO. You can view the OQRS service HERE to request a card (link opens in new tab).

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  • 1500km contact on 2m FM

    (Blog posted retrospectively from my old website, NE Ham Radio).

    VHF can work in wonderful ways! I was sitting listening to my radio when I heard a station (signal 5,9) calling CQ. I asked them to repeat the callsign, and I heard “ES8TJM”. They were calling CQ on 145.500FM, and I worked them (receiving a 5 and 9 signal in return).

    The usual range of VHF is “just beyond line of sight”. If you can make a 30 mile contact line of sight, you can expect somewhere in the range of 40 miles radio range. This contact occurred due to an atmospheric condition called “Sporadic-E”. You just have to be in the right place and the right time to benefit from VHF propagation, and I was very lucky to have such a clear contact so far away! I have never worked Estonia on HF either, so a totally new country in the log for me.

    I firstly thought that this might be a “troll” station, but the station I spoke to happily confirmed the contact via email. Definitely worth me sending a QSL card!

    Moral of the story – keep calling CQ! You never know who might respond…

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  • Quick Guide to SSTV

    (Blog posted retrospectively from my old website, NE Ham Radio).

    PC/Laptop
    You can download the free MMSSTV software in order to decode and transmit SSTV images. The software is pretty self explanatory, but you can upload an image and transmit a CQ image, a response to a CQ call, a 73 image, or your own custom text. You can select any mode. The Robot modes tend to be quicker but lower quality. We found Martin 1 to be the best mode (despite taking a long time, the image quality was fantastic).

    Mobile
    You can search on the play/app store for the SSTV software. There are free and paid versions of various tools. I used Robot36 Decoder to decode, and SSTV Encoder to encode. Just a note if you use Robot36 to decode – you will need to change the mode EVERY TIME you receive an image (it defaults back to Robot36). After an image has been received, it is automatically saved to your phone’s memory.

    To transmit using your mobile device, you can load your QSL card or image into the app. You can add some text to the image, and click “transmit”. Remember to select your mode (and announce on the air, in voice, which mode you are using as to avoid confusion). For example “I will now transmit SSTV using Martin 1, please standby, from M7OJA”.

    Identifying On-Air
    Amateur radio operators in the UK must identify themselves “from time to time”. You can usually do this in voice on the air. It is also recommended to print your callsign in all transmitted images (you can add text before you transmit using the mobile app).
    If you are using MMSSTV, you can add an optional morse code identifier on the end of your transmission.

    Other ways to transmit/receive SSTV
    You can connect your radio to a data interface, and then to your computer. Some radios such as the FT-991A has a built in sound card allowing you to connect the radio to a computer using a USB cable. The audio quality will be a lot better, and the images sent and received will be clearer. However, data interface cables and suitable radios are not cheap – you may be better starting off using the mobile app.

    Good luck, and I hope to receive your SSTV image soon! Remember that SSTV is rarely used on the 2m bands, so it is great to drive activity on to this mode. Although 144.500 is primarily for SSB use – you are entitled to transmit FM on this frequency (and it is easier for SSTV operation as more people have access to FM, and you can speak and transmit images seamlessly).

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