I have in my drawer an AD9854, obtained as sample from Analog Device. Problem is, I am horrified at the very thought of having to produce a PCB for it, let alone soldering it.... SMD make life diffic
Brian and Alberto: They said the same to me, but they added that they have the AD9851 model, which is an AD9850 plus an internal clock multiplier. If you can get the 51, grab it, if you can get the 5
Johan: It would be very nice if we could agree on a simple serial protocol that would allow any PC program, be it DOS or Windoze, to take total control over the DDS (I know that Andy G4JNT has done s
limited What!? As far as I remember you did most of the hardware design and, what's more important, you made kits and PCBs available to the LF community. I only read the AD9832 data sheet and wrote
Greetings Walter.... ............By all means let's have a RECOMMENDED bandplan but to start moaning when somebody occupies the "wrong" slot for an hour or two in an otherwise empty band is a bit ric
Dave: Oh dear, dear, dear. As it happens, the suggested bandplan (at http://www.g3wkl.freeserve.co.uk/lf/136kHz.html) has now been submitted to IARU region 1 for ratification. With respect, I do hope
Greetings: When I thought about this suggestion again, I realised that it would match the antenna OK, but of course it would not help to resonate it. I tried feeding a wire straight up the side of th
SteveL I would appreciate just a copy of the circuit please. Thanks. 73s Steve Olney If you go ahead with it Steve, I would like to share in PC costs. Larry VA3LK
Tuning a large loop to resonance and measuring the loop inductance is easy without any instruments but a receiver and a calculator. Just couple to the loop with a toroid and put a silver mica bank of
John, G4CNN Without going to the bother of looking this up, I assume it is the town of Omsk in Western Siberia, since Alex gave that as his location in his first email. Yes, I agree but I am no longe
Stewart: A friend and I are trying to repair an old HP counter (HP 5345A). One of its faults is a failed HP 1820-0610 , which has the commercial equivalent MC8309P. Does anyone on this list know a re
There are two books that I have been searching for with no success: 1. Instruments of Darkness by Price which has to do with navigation radio beams during the late 1930s and through WW-II. Author is
Doc: 1. "Instruments of Darkness" by Price which has to do with navigation radio beams during the late 1930s and through WW-II. There is a UK scholar who is specializing in the work of R V Jones, Jon
Brian: Some progress has been made in that I am now able to commnicate serially through a COM port using a simple QB45 routine running in a DOS box under ME at 9600 and inconsistently at 19200. 73, B
Brian, finally something I can speak to. Yes Quick Basic 4.5 was pretty bad at handling serial communications. There were some "add in" software to make it minimally acceptable but they were usually
Alberto and everyone else..... The era of SDR (Software Defined Radio) is approaching... I offer that the era has already arrived. Take a good hard look at LINRAD. I drove all the way down to south e
Alan: Thank You for thinking of me, and for making the effort to send on the LDE event in VK. Sir, you are a treasure, a person who keeps giving and giving, I hope that this Thank You will be just a
Alan: The .DLL programming sounds interesting, I presume that the work on 2m is still moving along the PSK31 route. Heavens no, PSK31 is not a weak signal mode - PSK31 is merely an example of the .DL
Alan: Yes, Alan I also got a copy of the message here as well and I examined it with some new tools I have here and it came from..... and you can be assured that I have nothing to do with rftechnolog
