Dave Bob may have a preference for not using remote receive, but he ought to be able to hear MB7LF from his QTH. Stewart G3YSX Alan Melia wrote: Hi Dave, It is sad to hear that Bob has been unable to
But compared to 2000m the 10 to 20m that most folks manage is still small. As I write this I look out at the farmers field behind my new house reasonably high on the north downs. Perhaps I should tak
I know that this has nothing to do with LF, but a number of the LFers were at the CARC microwave round table, and I suspect that there may be a wider interest amongst this group in the optical commun
Jim See inline: I came across an interesting concept yesterday that I thought worthy of further consideration for an LF active antenna. The so called inverted vacuum tube amplifier... Dear Stewart, L
I came across an interesting concept yesterday that I thought worthy of further consideration for an LF active antenna. The so called inverted vacuum tube amplifier. Consider a triode, with a positiv
We have two of the large basket-weave Decca ATU coils at CARC. They are made from plastic covered litz (PTFE I think), and have a built in variometer. Demands on space mean that they have to go. The
Tomorrow may never come, but the day after tomorrow arrives at midnight :) http://www.motorola.com/ies/GPS/docs_pdf/notification_oncore.pdf 73 Stewart G3YSX
Laptops are fine in the Xray. Mine has been thoroughly irradiated. If you travel to the US you will have no choice. The Laptop has to go through separately, so do your shoes. Over there the detectors
When I was a PhD student we used to make high power resistors to terminate very large pulse generators from PVC tube filled with copper sulphate and with brass end plugs. By varying the size of the r
Hi LF group, in the gaps of the MSF timecode on 60kHz, it is possible to observe signal strength and phase progression of DX time stations JJY (Japan) and WWVB (Colorado) in Europe. You can find det
http://www.iee.org/Policy/Submissions/current.cfm My view is that trading is as great a threat to the upper spectrum, as PLT is to the lower, and needs to be defended with the same vigor as is being
http://www.iee.org/Policy/Submissions/current.cfm My view is that trading is as great a threat to the upper spectrum, as PLT is to the lower, and needs to be defended with the same vigor as is being
I know that a number of members of this group contributed to the IEE policy submission on PLT, but I have not seen a pointer to the final result posted here yet: <http://www.iee.org/policy/submission
Don't you need the integral of sin^2(x)/x^2 which according to http://www.sosmath.com/tables/integral/integ37/integ37.html is pi/2 from 0 to infinity Is integral # 12 from that table correct ? Shoul
Andy According to http://integrals.wolfram.com/index.en.cgi integral (sin[x^2)]/(x^2) is sqrt(2 pi) * FresnelC[sqrt(2/pi) * x] - sin(x^2)/x and according to http://functions.wolfram.com/GammaBetaErf/
Mal The full manual was at the reference that I posted a few days ago, including a circuit diagram. Admitedly it was scanned as a bunch of pages, but it appears to all be there and scissors and tape
There seems to be a manual at http://bama.sbc.edu/heath.htm but the site has an FTP limit of 10 and so I could not put it down to chack it. 73 Stewart G3YSX
Alan Melia wrote: Hi Uwe, is it not possible to allow for the delay down the connecting wire to the NTP sever. In the days I played TCP/IL over packet the PING facility gave the round-trip delay for
If GPS is not an option, then NTP (clock timing via the Internet) might be an alternative. There is some info on accuracy at http://www.ntp.org/ntpfaq/NTP-s-algo.htm#AEN2361 - Stewart G3YSX Judging b
