It's probably worth pointing out that the archive CD's of RadCom seem to be available to Non-members from the RSGB shop, (on-line store) so you can get hold of past issues of RadCom even if you are n
Hi Mal, I share your frustration at the lack of Component adverts - but I think the series of "Homebrew" articles by Eamon Skelton EI9GQ has been brilliant. If you look at a magazine like Dubus, the
Careful ... the legislators may take you seriously ! But certainly the available bandwidth at lower frequencies needs to be widened to allow widespread use of phone on the 136kHz band. Hugh M0WYE htt
Graham, Andy et al. Thankyou for bringing these to our attention. What a rich seam of technical information. Hugh M0WYE Looking at the list of BBC Publications ( http://www.bbc.co.uk/rd/pubs/whp/inde
I successfully made a TDA2030 amplifier which i used for all my intial experimenting on 137kHz Photo http://www.m0wye.radiouk.com/lfamp.jpg The data sheet for this IC claims a bandwidth of 140kHz so
Peter and group, I don't know if this contributes to the original discussion, but I found this table which shows the relative efficencies of different types of lamp: The original is here: http://en.w
Hi Mal, If your Microsoft Windows is the same as mine (XP or Vista) then when the mouse pointer is hovered over the small picture it will turn into a little magnifying glass and when you click it, it
I've got a record by them, it was in the charts about 1973. Hugh M0WYE -- Original Message -- From: [email protected] mal hamilton To: [email protected] rsgb Sent: Saturday, June 27, 2
Hi Roelof and Nicolas, I have a manual, and your E-mail has spurred me on to finish scanning it and put it on my web site. you will find it here: http://www.qsl.net/m0wye/D2155/k2155man.htm It is a c
Hi Chris, I used an OMP 100W amp for my brief sortie onto 136kHz. I never blew up any FETs, but never managed to get more than 50W out of it either. Unless you want a linear mode go for the switching
Hi Peter, In the past I have wound a few turns aound the core and measured the Inductance. From this you can calculate the AL value, or "Inductance Factor" in nH per turns squared. I measured the Ind
While on the subject of ferrites and identifying them, Anglia have published a 176 page data book bringing together datasheets from various inductor manufacturers. It's free to download, as is their
C-Scope International also make pipe and cable locating equipment - their website is here: http://www.cslocators.com/products/ 73 Hugh M0WYE Thank you Ed. This was not it but I'll have a look at it a
Thankyou Chris, and Simon, It was kind of you to take time out of your marking schedule to calculate that. If I was transmitting a signal I wouldn't consciously decide how often to transmit photons,
This method of winding increases the interwinding capacitance, and also lowers the breakdown voltage of the overall coil, because adjascent turns have a higher potential between them. When I wound my
I agree with Jim, I've been following this reflector for the last eight years and the standard of discussion is far better than many other forums. 73 Hugh M0WYE -- Original Message -- From: "James Co
Chris and group, What an intriguing thought - building a village inside a photon. It reminded me about the article on Toroidal Antennas that Jim M0BMU drrew our attention to on 1st March. It containe
Greetings to the LF group, My neighbour informs me that she is intending to have photovoltaic panels installed on her roof, in a scheme where she gets free electricity (all subsidised by the governme
Dear Bufo Bufo and group, There are indeed some strange scientific papers about. It seems to me that it would be best to study links between VLF propagation and earthquakes, and between VLF propagati
If you had a few spare fluorescent tubes lying around you probably wouldn't have needed the torch - I understand Nicola Tesla illuminated his workshop in this way :-) 73 Hugh M0WYE Thought I'd better
