I've just ordered a couple of the DS2502 one-wire EEproms contained in the Dell PSU to tray hacking the contents to make a custom PSU. But there's a long delivery time on them from Farnell, so tha
From Murray who can't post to the LF Reflector at the moment... Andy www.g4jnt.com -- Forwarded message -- From: Murray Greenman <[email protected]> Date: 31 July 2010 11:15 Subject: Fw: [600m] ZL
A thought. MF1 ROS is one symbol per second isn't it. If you can decode at -33dB (presumably in the reference bandwidth of 2.5kHz) that's -1dB S/N in a symbol bandwidth. Which I'm not sure I can
Use Digipan instead...? Andy www.g4jnt.com On 5 July 2010 17:44, John Bruce McCreath <[email protected]> wrote: Hello LFers, The problem is solved! That date I mentioned in my other posting got
Yes, I've played with running laptops including Dells from all sorts of power supplies. The nominal voltage can go a goodly 10 - 20% either way before it flags an error - and they seem to detect ove
Would that be called an Aerial. And would a ground based antenna be an Earth :-) Andy www.g4jnt.com On 24 July 2010 20:13, Gary - G4WGT <[email protected]> wrote: Hey Mal, That would be goo
Try WSPR at 6Hz bandwidth or JT4A at less that 20Hz. They are both MSFK constant envelope schemes. Andy www.g4jnt.com 2010/7/29 Stefan Schäfer <[email protected]> Andy, LF, Which di
I was thinking about this, and thoughts turned to a rather simpler antenna; the folded dipole and how it would behave when electrically short. A simple non-folded electrically short dipole (negel
On Sunday 8 August The South Coast Beacon and repeater Group will have our usual stand at the Flight Refuelling Hamfest raising funds to keep all our 2.3 to 47GHz and 70.031MHz Beacons on air 24/7
It would be very interesting to see those figures normalised to a constant data rate / bandwidth. For example, PSK31 shown at -10dB is identical to PKK63 at -7dB - well it would be, its the same mod
And your CW waveform is how wide ? Andy www.g4jnt.com On 1 July 2010 19:20, mal hamilton <[email protected]> wrote: Not economical frequency use. see pic
If you open an account with Farnell delivery is free (even for a single resistor), and ordering online is seriously easy. Minimum effort clocked so far involved typing in a one search term, a scrol
Could do, but the postage will come to rather more than we were going to be asking for them. Andy www.g4jnt.com On 29 July 2010 17:09, Warren Ziegler <[email protected]> wrote: Andy, Would you
CMSK8 is 8 times faster than CMSK1, but its not the whole story. If the link is too weak to support the faster speed, but the slow one gets through - which is then faster ? CMSK8 that may work
And I am considering replacing the transmission with a WSPR only beacon signal. This will allow the use of a more efficient class E stage. So, please shout now if you still are interested in the p
MSK does not lend itself to generation on a PIC. It is NOT a two tone mode, but a waveform that transitions back and forth around a circle in phase space. Do not think of MSK as frequency Shift K
But think of the animals and birds with their extended hearing range. Andy www.g4jnt.com On 31 August 2010 19:54, mal hamilton <[email protected]> wrote: I see 15 Kilowatt audio amplifiers advert
-- Forwarded message -- From: Murray Greenman <[email protected]> Date: 5 August 2010 07:14 Subject: CMSK Beta released To: Hi, there has been a lot of interest in the new software, and I'm sure m
My 503.7kHz beacon is off air for a few days while I resite the mast holding one end of the Tee antenna. The original mast was a Al scaffold pole screwed to a brick buttress strengthening the wall
-- Forwarded message -- From: Murray Greenman <[email protected]> Date: 22 August 2010 09:01 Subject: Fw: LF: Fw: Covert Char per Min to Words per Min ? To: Andy Talbot <[email protected]>
