[time-nuts] Re: Crystal oscillator for a begginer

Adam, You might already know this, but if not … To add on to Bob’s suggestions, if you have more money than time, TAPR has some ‘divide to 1 pps’ devices: https://tapr.org/product/tadd-2-mini-pulse-per-second-divider/ And some ‘compare 1 pps devices’:

[time-nuts] Re: NTP servers

Welcome, and here are a few thoughts: One of the members developed a ’TimeHat’ that sits on top of a Raspberry Pi. GPS and more. I purchased tow of them, and am quite happy with them. https://millerjs.org/timehat Another option is the Leo Bodnar NTP

[time-nuts] Re: Updated TimeHat image (new gpsd!)

com/gpsd/gpsd.git > <https://gitlab.com/gpsd/gpsd.git> > - build gpsd: cd gpsd ; scons > - stop gpsd: sudo systemctl stop gpsd > - install new gpsd: sudo scons install > - restart gpsd: sudo systemctl start gpsd > > You’re all set! > > Regards, > John > >

[time-nuts] Re: Updated TimeHat image (new gpsd!)

) Thanks and 73, Scott W7SLS Sent from my iPad > On Oct 22, 2021, at 6:12 PM, John Miller via time-nuts > wrote: > > Hello all, > Here’s an updated system image for the TimeHat - including the latest > versions of gpsd, chrony, and DietPi. I had been meaning to get this i

[time-nuts] Re: Thanks! // Re: GPS Splitter for L1, GNSS, etc?

. I’ll need to do more research Sorry and thanks for bandwidth Sent from my iPhone > On Jun 2, 2021, at 7:12 PM, Gary E. Miller wrote: > > Yo W7SLS! > >> On Wed, 2 Jun 2021 17:42:20 -0700 >> W7SLS wrote: >> >> I chose to buy a pre-made splitter, that I lear

[time-nuts] Thanks! // Re: GPS Splitter for L1, GNSS, etc?

Best Regards, Scott W7SLS > On Jun 2, 2021, at 8:32 AM, paul swed wrote: > > Thats why the satellite splitters are nice they have the blocking > capacitors built in with diodes to forward the highest voltage to the > antenna. But lots of great ways to solve the problem. >

[time-nuts] GPS Splitter for L1, GNSS, etc?

ter GPS/GLONASS L1 GALILEO E1 BEIDOU B1- FedEx Fast Ship SV1AFN $120 Thoughts? Thanks for the group bandwidth. Scott W7SLS PS: yes the Symmetricom 58536A will be for sale after I replace it. ___ time-nuts mailing list -- time-nuts@lists.febo.com --

[time-nuts] Re: 2nd Run of TimeHats

Interested. Can you share anticipated price range when you are ready to do so? Thanks. Scott W7SLS > On Apr 26, 2021, at 5:32 AM, John Miller via time-nuts > wrote: > > Hello everyone, > > I’ve seen a number of messages lately that reference the TimeHat boards I put &

[time-nuts] FS: HP 3325B Synthesized Function Generator

can’t test every function). Normal scuffs as would be expected. Has some sentimental value to me (R colleagues a couple of desks over designed this). Selling to make more room in my lab. Thanks for considering. Scott W7SLS ___ time-nuts mailing

[time-nuts] (print on demand) /// Re: time sync by moonbounce

ven know’. Best, Scott W7SLS ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.

[time-nuts] (private) // Re: Problems with Lady Heather and Asus Aspire A515-55 laptop with an HP 58503A GPS receiver

ontrol and programming) (more recently), Lady Heather. My purchases for my own (and club donations) uses are in the low double digits. Flawless. Off topic, but I also enjoy how you contribute to this group. Best Scott W7SLS > On Jun 7, 2020, at 7:38 AM, Dr. David Kirkby

Re: [time-nuts] A simple sampling DMTD

ridge this gap. > The DMTD design has connectors for a (forthcoming) FPGA daughterboard to > properly sinc-filter (and I/Q demodulate and...) the incoming samples. > > Sincerely, > > JD 'walk first, then run' B. > >> On Mon, Nov 4, 2019 at 6:38 PM W7SLS wrote: >>

Re: [time-nuts] A simple sampling DMTD

ple rate, we would: sample @ fs -> lowpass filter at (say) 80% of (fs/2) / N -> decimate Otherwise all of the energy > 50% of (fs / N) gets aliased into your data. Why not just sample at 100 kHz? What am I missing ? Thanks for considering, Scott W7SLS > On Nov 3, 2019, at 12:

Re: [time-nuts] DC distribution

The Tri-Crimp (purchased from WMR of Powerwerx) has worked for me for hundreds of crimps (of the 15-30-45 amp power poles) The WMR crimper for AWG 6 and 8 works well for the 75 A connectors Crimping the larger (e.g. 175 Amp) Power Poles is “interesting”, in that readily available (sub US$ 150)

Re: [time-nuts] DC distribution

Many ways to lock them Insert a small 3”? tie wrap from one hole to the other, or use those twist ties that usb and power cables ship with, or use the locking mechanisms from WMR, and/or ... Good luck whatever you decide is right for your situation Scott Sent from my iPhone > On Oct 4,

Re: [time-nuts] DC distribution

Perhaps piling on, but be sure to adopt the “ARES standard” (same as rig runner) for your 12 v power poles ( so you don’t blow up your or their equipment, when a friend visits S Sent from my iPhone > On Oct 4, 2019, at 1:06 PM, Didier Juges wrote: > > That's what I do too. I do use Power

Re: [time-nuts] DC distribution

>> But if you're using thin wire, soldering after crimping is a good precaution Good advice. Another way is to put in an extra wire (or fold over the thin wire) so as to “fill up” the power pole before you crimp it. Scott W7SLS > On Oct 4, 2019, at 8:41 AM, John Ackermann. N8

Re: [time-nuts] DC distribution

Anderson Power Poles / West Mountain Radio <— agree. fantastic avail 15A, 30 A, 45A, … 175A, and more Blue Sea Systems marine products are great also example: ammeters with shunt in positive rail My .02 Scott W7SLS > On Oct 4, 2019, at 4:56 AM, Tim Shoppa wrote:

Re: [time-nuts] Keysight N5511A - phase noise measurements down to theoretical-177 dBm/Hz

Among your many choices: SignalHound SA-44B919 USD (0C - 70C version) https://signalhound.com/products/usb-sa44b/ With its (free) SPIKE software, you can measure phase noise (and much more). https://signalhound.com/spike/ Pix below is a sample (from the SM200A version). Notes:

Re: [time-nuts] Aerial coax downlead placement

uitable lightning arresting equipment Good luck, Scott W7SLS > On Jul 4, 2019, at 1:43 PM, Peter Vince wrote: > > Hello all, > > A new contact, whose background is in computer programming rather than > RF, is getting into accurate GPS positioning, and has been tapping me

Re: [time-nuts] GPSDO 10MHZ Splitter

move to 50 ohms. And of course there are other ($$$) solutions. (Obviously) I defer to the wisdom of the group (and perhaps groans and eye rolls). Best of luck, whatever you choose. Scott W7SLS > On Jun 21, 2019, at 7:27 AM, Don Meadows wrote: > > Is there an easy, and cheap way to

Re: [time-nuts] Short term 10MHz source

Hi John (and Bob), Thanks for clarifying (and for the bandwidth). As a direct result, I placed an order for a TICC and joined TAPR. 73 Scott W7SLS > On Jan 8, 2019, at 8:00 AM, John Ackermann N8UR wrote: > > Hi Scott -- > > The TICC is a fully-assembled "shield"

Re: [time-nuts] Short term 10MHz source

ter? Or? Thanks, Scott W7SLS > On Jan 8, 2019, at 7:23 AM, Tom Van Baak wrote: > >> Hi All sorry for a new be question but >> what is a TICC >> regards Paul B UK > > Hi Paul, > > That is an acronym we often use here on time-nuts; one that a simple google

Re: [time-nuts] new WWVB BPSK dev board

it fits on the project list. Regards, Scott W7SLS > On Dec 4, 2018, at 4:04 PM, Iain Young wrote: > > > > On 04/12/18 23:08, jimlux wrote: >> On 12/4/18 2:52 PM, Poul-Henning Kamp wrote: >>> >>> In message <20181204224816.bfef2926d942b52db806

Re: [time-nuts] 10 MHz 'failover' switch?

Hi Bob, Thanks for the quick reply, makes sense. 73 Scott W7SLS > On Jul 26, 2018, at 1:13 PM, Bob kb8tq wrote: > > Hi > > They are a pretty rare item. A more common approach is a disciplined > oscillator that > will do failover on it’s inputs. That’s still a ra

[time-nuts] 10 MHz 'failover' switch?

to lock). I have a new power supply on order, but would be nice to have “insurance”. Thanks in advance for the group bandwidth. Scott W7SLS ___ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman