Dear all. As there seems to be a fondness for nostalgia on here (yes I do know and love the EF50!) I wondered if anyone would be interested in piles of old Radcom and Practical Wireless from 1972 and
Hearty congratulations to all. It's been an all-consuming goal for most of the participants, sleepless nights, skinned knuckles, melted insulators and blown fets. Well done Jack, John, Larry, Laurie
Jim. Please send them to me and I'll bung them on the web-site. Dave G3YXM. If anyone is interested, I can send them the circuit diagrams as JPEG files - they are a bit big for the reflector.
Dear all. I don't think I'll be able to make it to the forum on Sunday, other commitments, but I would like to include a summary of what went on for the next LF column. The deadline for that is Monda
Dear all. I was always taught that the current at the top and bottom of the coil would be the same "unless the coil was radiating power", as your coil is significant in size relative to the total aer
Dear all. The lesson to be learned about lightning is, no matter what you do regarding earthing antennas, unplugging things etc. is that it isn't going to make the slightest difference if you get str
Steve, Dave and all. May be a bit different in the remote parts of France though. Yes indeed, this is the point I was trying to make. I know a couple of people who have started on the band with a few
Dear all, and welcome Pascal. Pascal, I would recommend building a TX with at least 200W output to begin with. Once you have made a few contacts you can improve the antenna etc. and then try QRP. I t
Martin and all. I have put my Ropex review on the web now. http://www.wireless.org.uk/ropex.htm I didn't know they were still for sale! 73 Dave G3YXM. I have heard that there is a company offering an
Dear all. Beware of keying any but the TC4426 chip... The non-inverting TC4427 has its two outputs overlapping as the volts drop below 12, whereas the 4426 develops a dead band between the two output
Alberto. I think the front-ends of the two rigs are very similar. I know Graham G3XTZ used one with no problems. There is an attenuator on most Kenwoods which is switched in below 1.6MHz. Perhaps you
Mike Very pleased to work Dave cross band 73/136kHz this morning. His signal peaking 5.7.9.manual cw. My report to you was a bit mean... I later found that the (controlled rectifier) PSU for the TX w
Dear all. New feature on "World of LF" web-site. There is a page where you can post information about forthcoming LF portable (or other special event) activity. This will then be flagged on the main
Mike. I have a Grundig MW82 Arganto series widescreen TV with no problems on LF. Dave G3YXM. Today I purchased & installed a new Panasonic TX-25 CK1 TV receiver to replace an older one of same make.
I have just booked my ticket, not for Tom's barn dance, for the DX dinner. See you all there. Dave G3YXM I'll be there Saturday but not the dinner (barn dance in the village that night!) 73, Tom G3OL
The same is true of the Alinco DX70, the receiver works better on LF with the preamp off. Dave G3YXM pre amp on. My FT-890 is more sensitive on 136 kHz when i switch the preamp **off** .. anyone else
Dear all. I have the Argo screen-shots of ZL6QH recorded in Papua New Guinea, a path of about 4,700km. This is not very different from out trans-Atlantic tests but Ricks traces show a Doppler effect
Ulrich I would recommend getting a good filter for the 455 IF, it really makes the receiver so much better. The skirt selectivity of the 8MHz filters is not as good as the 455 ones so you will notice
Dear all. I put out some QRSS from NW GM as announced but no takers. The antenna was the best ever at the site, 80mtrs end fed at 13mtrs high and all in the clear, after to some clandestine tree-clim
Thanks Alan. I'll be up in North-West Scotland at the weekend so may get to see the Northern Lights at last! Listen out for a signal from Ullapool if the weather is OK for kites! 73. Dave G(M)3YXM(/P
