I purchased the “Mini-1300” Antenna Analyzer. I’m still a ham who is fairly clueless when it comes to test equipment. It actually appears similar to the 1300. I can’t seem to locate many videos on either model. Thanks for the video!
I have EU1KY for more than 2 years (model FAA-450 sold by Elekitsorparts). That's my favorite antenna analyzer and also L, C, and complex impedance meter. I use it all the time. It doesn't do WSPR but since there is no power amplifier or more importantly proper filters in it, it would be illegal to connect it straight to the antenna for transmitting anyway, so I don't miss this feature. 73s de R2AUK
WSPR timing, the original sotabeams wspr transmitter I have needs to be started with the press of a button precisely to sync with the wspr timeslot. If you can start this device in a similar way it then is down to the accuracy of the onboard clock that will effect the over-time results.
I think the oine from funtronics is well worth the extra. RC installed as well as 2 nd port. The mini 600 and 1300 hav almost killed the message board used by the early EU1KY users. Some bought the kit and some built but none were like the Mini 500 and 1300.
I built mine using the STM discovery board a few years ago. It is in a ubiquitous Eddy box in true home construction style. I have been very impressed with it and find it works very well. I have used the TDR to locate a coax fault and found it to be reasonably accurate. I’ve not used the WSPR function as I have a GPS locked Ultimate 3 TX from QRP labs, which has been running 24/7 for about 7 years now on 10MHz. While it has been received all over the planet including both the Artic and Antarctic, you can probably hear my 200mW on ground wave, as I’m probably only a few miles from you. Cheers Nick G0OQK.
That's awesome! I know these have been around for a while, but I find it nice to know that someone, EU1KY is still developing for it. If it could reach up to 2.4GHz then I could get rid of my other VNAs lol.. Cheers!
I had a look at my analyser this morning and found that I had built it with a real time clock installed, which I had forgotten that I had done. I set the time and adjusted the audio frequency as it was slightly LF compared to my GPS locked beacon. It is currently running on 28MHz however RF output is very low and I haven’t been spotted. If you want to use the EU1KY for WSPR, I would recommend building a simple power amplifier using a single BS170 FET. An example can be found by looking at the circuit of the Ultimate 3 WSPR TX from QRP labs. This should be followed by a suitable low pass filter, design available from the same source. However the best solution would be to buy an Ultimate 3 kit for WSPR use, a relay switched filter is available for multi band use. Nick G0OQK
WSPR, FT-8, JT-65 all work however WSPR is only really practical. All others just for test transmitting or perhaps beacon. TIME has to be set very accurately with Date/Time and note; the small SMA is the transmit port NOT the larger type N.
I think it’s a timing issue, just try and get the time exactly right along with the seconds. Meaning you have to keep an eye on the time and then turn it on at the right time. Well, that’s my theory anyhow.
