Well, for the first time in about 5 years I have actually spotted a station on 136kHz. My RX system on that band is a joke, but it got Chris G3XIZ. Thank you Chris. At least my setup is looking in th
Watching Roger's adventures on 136kHz, I thought I'd go take a look and I wondered - DCF39 is about 50dB above the noise at 16:44UTC. I'm using a 150ft inverted L, untuned, stuffed directly into an
Hi Martin, I would estimate the field strength from DCF39 in your area is about 0.5mV/m (from measurements done by PA0SE in the UK) and from your data that gives about 1.5uV at the RX input as the le
Alan - thanks for this. Being a bear of very little brain ( I wouldn't recognise a Newton if I tripped over one!) much of your explanation goes over my head, but I understand well enough your conclus
Noise power is proportional to bandwidth At room temperature, a resistor will develop -174dBm of thermal noise or -174dBm/Hz In a 2.5kHz SSB bandwidth, the total power is therefore -174 + 10.LOG(25
Hi All, Best DX on 136kHz WSPR RX here earlier was G8HUH (250km) in Somerset. Nothing spotted since teatime, but my setup could not be much worse! Next year I may well try a miniwhip. Years ago I tr
Hi Martin I think Andy has answered the question for me so I wont confuse your with further facts :-)) In the days when I used to pontificate daily on propagation I tried hard to ensure the sensitivi
Well I am glad I was persuaded to keep trying by Pete! On 136kHz WSPR 4 different stations have been received in the last day despite my totally useless setup. Thank you to everyone for the encourage
Good morning Alan - Yes, I received Andy's post but frankly it was so far above my pay grade that I read it twice and decided that further study could be dangerous to my mental health. Look after th
There is no need to wonder how good your (or anyone's) receive syatem is. By using the databases for Opera and/or WSPR (http://wsprnet.org/drupal/wsprnet/spots) simply compare the reports you are giv
Thanks Mike. Yes of course - silly me - I do remember to upload spots on occasion but it had never occurred to me to compare reports. The obvious solutions are often the best (especially if like me
