Radio and rails...

M0RVB

6m FM

They do say 'read the manual'... I had tried before to get into the local 6m FM repeater and failed. I tried again today, I'm sure the settings on the FT450D were all the same but I can now get in fine. Had a nice chat with someone too. I can also get into the co-located 70cm DMR repeater on the MD380. These are very roughly south from my QTH and a clear view - well there would be if the house next doors wasn't there.

Continue reading...
M0RVB

ISS tonight

Nice bit of fun tonight listening to the International Space Station on 145.8 - 2nd attempt by the ARISS guys and all credit to them and their excellent team for persevering for the YOTA17 event. Heard astronaut Paolo (IZ0JPA) here on NA1SS at 57 before it moved out of reach of my 2m horizontal dipole in the loft. Also nice streaming by the BATC. I hope the YOTA members there enjoyed it and glad it worked out after the troubles on the first pass earlier in the evening. Hopefully this will mean more radio amateurs - good for the hobby. (This reminds me that I once knew an astronaut - well ok before he became an astronaut - Piers Sellers R.I.P.)

Continue reading...
M0RVB

FT8

A new mode (to me) - FT8, part of the latest WSJT-X package and widely discussed of late. Having been away from radio for a few weeks I've been keeping up on this via a Facebook group and e-mail and itching to get back home and grab the software. I did so late last night and managed to answer one CQ after reminding myself about the mode while watching the band activity. The auto sequence was a surprise the first time I saw it working. I had a 'proper' go today with several successful answers to CQs. It all happens very fast! I have also now started logging QSOs within the WSJT-X package. I had not done this previously because really I only dip in and out of this and other modes, and have plenty of time to log the few QSOs I actually make by hand. But as it's now rather frantic I decided to have a go and it all works nicely. Of course you will by now be questioning my sanity due to the fact that previously I had no indication of DXCC or callsign worked etc., resorting to my own lookup script that checks QRZ.com to…

Continue reading...
M0RVB

SSTV

Another new mode for me, well, only receiving in this case. I had always been interested in SSTV but that many decades ago there were no PCs and I never did get round to building anything when the BBC Micro came along. Anyway, I was dialling across 20m the other day and came across a very strong SSTV signal which brought back memories of the mode. So I installed qsstv - which needed a few extra bits installing but it all complied up with no errors. To my surprise, as soon as I ran it last night with the rig on 14.230 it decoded and showed SSTV images after just a few seconds! I thought it was a self test at first, but no it was live. A useful feature is it stores images automatically. So now I need to make some images up and have a go at calling CQ SSTV...

Continue reading...
M0RVB

More bits of wet string...

...well actually aluminium. I finally cut down an old 'fm' radio dipole to 2m and quietly ran yet another run of WF103 into the loft. So the Trio TR-9130 I got a few weeks ago finally has an aerial. SWR is not bad at 1.2 or so on the VNA. It's mounted horizontally as I got the transceiver in the hope of one day finding some 2m SSB... well it's been 3 hours, nothing yet! Impatient! Anyway it worked fine for the local RSGB News this morning, and to hear someone asking if 145.5 was in use but with no callsign... This also means I finally have a use for the KW520 SWR/power meter. However, it would not register any power on the 20W setting on the 140-525MHz range but did on the 1.8-200MHz range (both of course cover 2m). I took the lid off, discovered it would be rather difficult to get at the switches to check them so put it back together. Of course it now works fine. Perhaps the initial swearing at it actually worked. The Trio causes some QRM on the speakers of one of our PCs - actually in the room below the dipole. But…

Continue reading...