Re: [time-nuts] GPSCon for Jackson Labs

Hi Keith Does this version allow one to make use of the 1PPS to give accurate timing of the PC and what timing accuracy do you expect? Rex VK7MO time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and

Re: [time-nuts] National Standards labs worldwide - specifically Australia

Hi David Standards Australia performs a somewhat different function in that it does not maintain reference standards or do testing but rather it produces written standards such as for construction of buildings, electrical wiring and food standards. Standards Australia is certainly authoritative

Re: [time-nuts] Aircraft ping timing

There is a newer system getting phased in: ADS-B For info MH370 did transmit ADS-B signals up to 17:21 UTC on 7 March when it seems it was either switched off or disabled. You can still see the track it took up to this time using the playback facility on Flight Radar 24 by say starting

[time-nuts] Help in Locking a Windows Computer to GPS Time

I am trying to lock a Windows XP computer to GPS time taking advantage of both the NEMA sentence and the 1PPS with the hope of getting to within a few ms. I am using a Garmin GPS 18PC and the NMEATime program. When I tick the box to implement the 1PPS feature on NMEATime the program locks up

Re: [time-nuts] Help in Locking a Windows Computer to GPS Time

Hi David Yes I did not make myself clear but I am looking for UTC time from a GPS. Thanks for all your references which I will work through and see how I go. Regards Rex VK7MO -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of David J

[time-nuts] Checking Time difference between PCs

I wonder if anyone has suggestions as to how to check the timing variations between two PCs that are running windows. The background to this request is that I am running two instances of the Weak Signal Program WSJT on the same computer and get variations of +/-0.2 seconds. It has been suggested

Re: [time-nuts] Averaging Location for Position Hold

Hi All In my case the Google Earth position cf if the GPS averaged position is within 3 metres of the physical position of my GPS RX but about 8 metres from the physical position of my GPS antenna. Can anyone tell me if the length of the cable has any affect on the GPS reported position or is

Re: [time-nuts] Synchronizing to WWV

Hi Neville They work OK to Tasmania so we must have the required clearance, hi Rex VK7MO Hi none of these nist references will download to me in Australia, is it some sort of national security issue? cheers, Neville Michie ___ time-nuts mailing

Re: [time-nuts] OT - GPS and North

Given that we cannot do it with one GPS in a fixed position I would like to get people's ideas on whether there is a reasonable cost way (say less than $2K) to do it with two GPSs to get within a say half a degree. The application is to find azimuth headings for Amateur radio microwave or

Re: [time-nuts] Sound Cards for locking to GPSDO 10 MHz references

Hi all Thank you all for you advice and suggestions re my request. At this stage it does not look like there is a simple solution of a readily available USB sound card that can be locked to a 10 MHz GPSDO reference. The constraints of portable operation with a Laptop rule out a number of

[time-nuts] Sound Cards for locking to GPSDO 10 MHz references

Hi all Does anyone have any experience of locking a USB external soundcard to a GPSDO 10 MHz reference. I am interested in advice on any good quality soundcards that can be readily locked to either 10 MHz or if necessary to some other frequency that we can derive from a GPSDO source. I have

Re: [time-nuts] Sound Cards for locking to GPSDO 10 MHz references

Hi Jeff Thanks for your advice which I will follow up - the reason for going for a USB sound card is that the system must be operated portable with a Laptop - but perhaps there is a way to use a PCI sound card on a Laptop. While we use WSJT at present we have a new Mode under development for the

Re: [time-nuts] GPSDO for sale

Hi Said I would like to take up your offer at $290 US plus postage to Australia. Let me know how much and how best to transfer the money to you. Kind regards Rex Moncur VK7MO -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of saidj

Re: [time-nuts] How can it be :05 in one place and :30 in another

Gretchen Adelaide (South Australia) has a half hour time difference to Eastern Australian Time. These things are caused by having a Federation of States where the States make their own laws about time. Rex VK7MO -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On

Re: [time-nuts] sync computer clock ticks

[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Saturday, 5 January 2008 7:12 AM To: time-nuts@febo.com Subject: Re: [time-nuts] sync computer clock ticks In a message dated 1/4/2008 12:07:29 Pacific Standard Time, [EMAIL PROTECTED] writes: Right, and the

Re: [time-nuts] need recomendation for a portable 10mhz referenceoscilator

Hi Said and All I have been following this thread with a lot of interest because my application is also in portable Microwave operations with narrowband modes such as WSJT. The main issue here is not so much long term frequency stability as one only has to find a signal in an SSB passband, but

[time-nuts] Short Terms Stablity of the Trimble Mini-T

); SAEximRunCond expanded to false Errors-To: [EMAIL PROTECTED] RETRY I am new to this list - so apologies if I am going over old ground. Is there an archive that I can look back on? I have been comparing a recently purchased Trimble Mini-T with a HP Z3801A and getting short term frequency