Hi Laurence, LF,
For LF/p i'm using a Samsung N150 Netbook which actually runs 8 hours
non stop on batteries. It causes no QRM at all of LF/VLF and has a
soundcard sampling at 96kS/s, 24 bit. Costs about 300 Euro 2 years back
and is very lightweight. Optimal!
It is even possible to supply my /p RX from the USB by using a DC/DC
converter (that adds no noise to the band too)! The best choice for me
in combination with the ferrite antenna. See
http://dl.dropbox.com/u/19882028/LF/LF-P%20RX%20RIG.JPG
73, Stefan
PS: Supplied by a homemade SMPS running on a 12V car battery i measured
15 watts maximum power consumption (while running a SpecLab instance),
so not much than 1A!
Am 21.12.2011 16:46, schrieb Laurence KL7UK:
Just as I was leaving the Oklahoma residence my screen
went Black on the Dell 610 :-( - seems to be a common failiure mode
and looks like the Hv inverter fail behind the Dell logo on the screen.
This is the unit I use for mobile and portable work and is getting
rather long in the tooth anyway -
I need to buy myself an early birthday present but want to find one
with a "quieter" screen - most of the back lit fluor displays
produce 35-50kHz + harmonics switching signal which can cause E/M QRM
in the mobile environment or locations where signal currents arent
going the way you want them. Any suggestions for a reasonable "quiet"
at LF/MF tried and tested laptop that could be used for our sport -
preferably with serial but not exclusive. Obviously longer battery life
the better too
I fear the purchase will be after Santa is on his holidays. With thanks
Laurence KL7UK
|
|
