You do not need a pico amp meter all you need is a digital multi meter that
has a 10 M ohm input resistance. Bert Kehren
In a message dated 7/7/2010 9:23:52 P.M. Eastern Daylight Time,
paulsw...@gmail.com writes:
Completely agree congrats and thanks for the update.
I may be getting back
Bob,
More or less you would be making the TBolt do a dumbed down
version of what the Z38xx's do.
If you have more detailed knowlegde about what the Z38XX do concerning their
time constant, would you share it with me?
There has been another thread here on TBolt's time constants. A TBolt that
Hi
If you watch a z3801 or 3805 you can see it switch time constants. There appear
to be about 4 steps on the 3805. Beyond that I have only a guess that they are
starting in the vicinity of 4 seconds and finishing at or beyond 200 seconds.
Bob
On Jul 8, 2010, at 4:40 AM, Ulrich Bangert
cool congrats !!
-pete
On Tue, Jul 6, 2010 at 9:43 PM, J. L. Trantham jlt...@att.net wrote:
Just a wrap up on the 5061A that had a Beam I but no 2nd Harmonic
indication.
I was originally stymied by swaps of modules with another 'functioning unit'
with no help. I then swapped CS tubes with
Here is some update on my low-cost extension board for the Agilent/HP
counters.
Finally received all the components and assembled everything some days ago.
Here is a picture : http://www.x86.fr/rfpsc/rf_psc_01.jpg.
Right now, the performance is really good up to 3.5 GHz :
50 MHz : -7 dB
100
Safe to get in the water yet?
Lester B Veenstra MØYCM K1YCM
les...@veenstras.com
m0...@veenstras.com
k1...@veenstras.com
US Postal Address:
PSC 45 Box 781
APO AE 09468 USA
UK Postal Address:
Dawn Cottage
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Telephones:
Office: +44-(0)1423-846-385
Home:
Hi
Extracting code phase data from the TBolt may or may not be practical. I'm
looking at that as a future project.
Right now all I'm really trying to do is see if there is any real interest in
an amateur common view experiment. With the PICTIC II and a TBolt, you
*should* have just about
Hi
The real question somebody needs to answer is - will it work with side adjust
trimmers? If not, then we're going to have to find another source to get the
trimmers from.
The project on Mouser shows the 3266p trimmer. AFIK the correct part is the
3266w. The board also appears to be laid
Bob,
Instead of the 3266 series go to the 3296 series
5K Trimmer, top adjust
652-3296W-1-502LF 7100 in stock
652-3296Y-1-502LF 590 in stock
200 Trimmer, top adjust
652-3296W-1-201LF 1090 in stock
652-3296Y-1-201LF 830 in stock
Richard
Hi
The real question somebody needs to answer is -
Hi
Ok, It wasn't clear to me weather the 3/8 parts would fit on the layout in
place of the 1/4 parts. The larger parts are indeed easier to get.
Thanks!
Bob
On Jul 8, 2010, at 7:26 PM, Richard H McCorkle wrote:
Bob,
Instead of the 3266 series go to the 3296 series
5K Trimmer, top
Hi
Another thing I think we need to get on the project is Q4:
512-2N7000TAFarichild's version at 0.13 each.
Since I didn't create the project I don't seem to be able to edit it
Bob
On Jul 8, 2010, at 7:26 PM, Richard H McCorkle wrote:
Bob,
Instead of the 3266 series go to the
I'll get these 2 corrections in tonight. I was wondering if the 3/8
parts would fit.
On Thu, Jul 8, 2010 at 8:07 PM, Bob Camp li...@rtty.us wrote:
Hi
Another thing I think we need to get on the project is Q4:
512-2N7000TA Farichild's version at 0.13 each.
Since I didn't create the
(Whoops will post from the correct address this time)
Hello,
I was just wondering if the following product:
http://www.triginstruments.co.nz/catalog/product_info.php?products_id=1302osCsid=b80759ac903096c20d806ddeb3d71121
Would be good as a timing source for GPS -- does it have the
Hi
For less money, you can get a Thunderbolt on the e-place. It will get you a lot
closer to your goal while not making it to Stratum-0.
Bob
On Jul 8, 2010, at 8:42 PM, Chris H wrote:
(Whoops will post from the correct address this time)
Hello,
I was just wondering if the following
Hi
A few other things to consider:
The MAX 232 is an either / or with a transistor and a couple of resistors. Not
a lot of money either way. I'd just go for the MAX and leave out the
transistor.
Putting the PIC in a skinny 14 pin socket would make things a bit easier if
there are software
(That Price was New Zealand Dollars)
I ideally would like to really do one of two things...
EBU Timecode in LTC format (audio timecode)
or
Make a linux box into a master time source...
It says I need windows XP and things, or is that just to configure and
check connectivity..
I have a Sun
Just quoted $1,000+ USD for the thunderbolt.. so not really the sort of
money I want to spend on this little project :)
On Thu, 2010-07-08 at 20:45 -0400, Bob Camp wrote:
Hi
For less money, you can get a Thunderbolt on the e-place. It will get you a
lot closer to your goal while not making
Hi
Thunderbolts show up regularly on eBay for $60 plus about $25 in shipping.
There are standard NTP drivers that appear to work ok with them.
Bob
On Jul 8, 2010, at 9:15 PM, Chris H wrote:
Just quoted $1,000+ USD for the thunderbolt.. so not really the sort of
money I want to spend on
I was just wondering if the following product:
http://www.triginstruments.co.nz/catalog/product_info.php?products_id=1302os
Csid=b80759ac903096c20d806ddeb3d71121
That's a Garming GPS-18 PC, the version that gets power from a cigarette
lighter. (What are they called now that lots of people
Samuel DEMEULEMEESTER wrote:
Right now, the performance is really good up to 3.5 GHz :
50 MHz : -7 dB
100 MHZ : -15 dB
250 MHz : -26 dB
500 MHz : -30 dB
1 GHZ : -32 dB
2 GHz : -32 dB
3 GHz : -30 dB
The real deal on the performance of prescalers is the ability to count
noisy sources. If
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