I guess it would depend on the level of infrastructure available to the
attacker, clock distribution is a reasonably well solved problem isn't it?
There would, I suppose also be the issue of receiver swamping, you could
monitor received signal levels as it's my understanding that the signals
from
on, 14 Aug 2017 10:26:13 +0100
> Clint Jay wrote:
>
> > That it can "so easily" be spoofed (it's not a trivial hack to spoof and
> > would, as far as I can see, take good knowledge of how GPS works and
> skill
> > to implement) is worrying and it could have
It's been interesting watching the various web SDRs the afternoon and
seeing the HF bands go silent.
They were recovering a short while ago but I will keep a corner of my eye
on them for the rest of the day
On 7 Sep 2017 5:57 pm, "jimlux" wrote:
> On 9/7/17 8:35 AM, David G. McGaw wrote:
>
>> N
Experience has shown me that you can reasonably purchase good, working test
equipment that's well within calibration tolerances if you are buying the
more 'common' equipment, 6.5 digit meters, frequency counters, even a
Stanford SR620...
I've been very lucky with those, two spectrum analysers and
I do enjoy the 'chase' of repairing things other people have discarded as
beyond economic repair, my CMU200 came with a rather amusing fault as well
as a good example of poor industrial design choice, it's now a very useful
piece of equipment.
I often scrounge faulty electronic equipment just for
Yes.
An instrument with a calibration certificate is not necessarily accurate
but it's inaccuracies are known and can be compensated for (but only to the
accuracy of the calibration reference of course.)
On 17 Sep 2017 17:39, "Magnus Danielson" wrote:
> Hi,
>
> The word "calibration" is overl
Hi Chris, if it's not blowing fuses and you're sure you've got all the
capacitors ( low value ones in the primary specifically) then check all the
high value resistors on the primary and continuity from reservoir capacitor
to switching transistor.
The average SMPSU usually doesn't deviate wildly f
It's a very standard supply, RS do them for instance:
http://uk.rs-online.com/web/p/embedded-switch-mode-power-supplies-smps/4557639/
There are plenty of uncased ones for a lot less if you're willing to do
some metal bashing.
On 4 October 2017 at 22:20, Lists via time-nuts wrote:
> I should
I was thinking the same as Azelio, I had a Racal 04B OCXO which refused to
start until I reseated the crystal in the socket. After that, well, it's in
almost daily use as a reference in a 1992 counter and has never stopped
since.
On 17 Oct 2017 07:18, "Azelio Boriani" wrote:
> The crystal is soc
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