Re: [time-nuts] Trimble GPSDO power suply unit.

2008-09-11 Thread David Ackrill
[EMAIL PROTECTED] wrote: > After connecting all wires to the Trimble plug and made a check if all > voltage is correct and left the PS unit to run > on the table without load/connecting to the GPSDO, about 15min got a > big bang and the Power Supply Unit blow-up. On my unit the PSU was not work

Re: [time-nuts] Odd HP 117A configuration

2008-09-11 Thread Brooke Clarke
Hi Chsristopher: The NCDXF page for the beacons is at: http://www.ncdxf.org/Beacons.html Have Fun, Brooke Clarke, N6GCE http://www.prc68.com/P/Prod.html Products I make and sell http://www.prc68.com/Alpha.shtml All my web pages listed based on html name http://www.PRC68.com http://www.precisio

Re: [time-nuts] Odd HP 117A configuration

2008-09-11 Thread christopher hoover
Brooke Clarke <[EMAIL PROTECTED]> wrote: > The same company has another program > that decodes the Northern California DX beacons > (as controls the receiver frequency). Note the > beacons transmit in GPS controlled time slots > with stepping RF power levels. The whha...at beacons? Is there a

Re: [time-nuts] Stanford Research FS700 Loran-C Frequency Standard

2008-09-11 Thread Stan, W1LE
Hello Martin, I have a Austron 2100 "T" Loran-C timing receiver,but I am looking for a more modern one like the SRS FS700. Any pointers as to where I could find one ? Nothing on Ebay for many months. Thanks Stan, W1LECape Cod Martin Fischer wrote: > Hello Community, > > currently I

Re: [time-nuts] TRAK 8810

2008-09-11 Thread exray
TRAK made some of the neatest equipment. Unfortunately, the will deny all knowlege of any equipment not in their current inventory! Good luck. :) -- Original message from "Ron Smith" <[EMAIL PROTECTED]>: -- > Hi everyone, > I've been reading the traffic for months now,

Re: [time-nuts] Trimble GPSDO power suply unit

2008-09-11 Thread Didier Juges
As long as the power supply is not advertised as an end item, problems like that are not within the scope of safety agencies. Didier KO4BB > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Hal Murray > Sent: Thursday, September 11, 2008 7:24 PM > To

Re: [time-nuts] Trimble GPSDO power suply unit

2008-09-11 Thread Hal Murray
> I've worked with Asian multivoltage switching supplies for years, and > what the manufacturer usually won't tell you is that their primary > output (usually the +5) of a multivoltage PS needs at least a 10 - 20 > percent (or so) minimum load in order for the whole unit to meet spec > and be stab

Re: [time-nuts] Odd HP 117A configuration

2008-09-11 Thread Scott McGrath
Hi, Russ I would like the dimensions please also if possible how the loop antenna is wound internally, I will take this to my local fabrication shop so they can make the structural components. After I have the estimate I will pass it back to the group along with contact information for the fab

[time-nuts] TRAK 8810

2008-09-11 Thread Ron Smith
Hi everyone, I've been reading the traffic for months now, but never put anything in before - I'm not working at the high level most of you people are. So this is my first mail and it's a call for information and advice. It relates to equipment TRAK 8810, which I don't recall seeing mentioned on

Re: [time-nuts] Trimble GPSDO power suply unit

2008-09-11 Thread David Medin
I'm glad to hear that Tom will replace the unit for you. I've worked with Asian multivoltage switching supplies for years, and what the manufacturer usually won't tell you is that their primary output (usually the +5) of a multivoltage PS needs at least a 10 - 20 percent (or so) minimum load in

Re: [time-nuts] Which GPS receiver?

2008-09-11 Thread Hal Murray
Does anybody know why U Blox charges an extra $150 for the timing version of their evaluation kits? -- These are my opinions, not necessarily my employer's. I hate spam. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https

Re: [time-nuts] Odd HP 117A configuration

2008-09-11 Thread Tom Van Baak
> Something I've thought about, but not done is to make time decoder based on a > PIC micro controller. Remember the 117 is only a frequency comparator. Brooke, Check the back of your 117A. There's a signal level output so with clear enough reception you should be able to extract the 1 baud sub

Re: [time-nuts] Odd HP 117A configuration

2008-09-11 Thread Brooke Clarke
Hi Scott: If I remember correctly there are two BNC antenna connectors on the A1 box, one with DC power for the antenna and another without DC. Also there's a fuse on the DC powered connector which could be pulled. http://www.prc68.com/I/117A.shtml An advantage of the loop is that instead of a

Re: [time-nuts] Odd HP 117A configuration

2008-09-11 Thread Scott McGrath
Hi Russ, Yes i did and it was a marvelous hack in the best sense of the word, It was fascinating to see how this actually worked, it of course is no longer necessary and I have removed it in favor of protecting the A1 assembly fully within the chassis. My 117A is a Prefix 438A unit and my manual

Re: [time-nuts] Trimble GPSDO power suply unit.

2008-09-11 Thread Tom Van Baak
> My Trimble GPSDO just arrive but I have a problem with the POWER Supply > Unit. > > After connecting all wires to the Trimble plug and made a check if all > voltage is correct and left the PS unit to run > on the table without load/connecting to the GPSDO, about 15min got a > big bang and the

Re: [time-nuts] Trimble GPSDO power suply unit.

2008-09-11 Thread ernieperes
My Trimble GPSDO just arrive but I have a problem with the POWER Supply Unit. After connecting all wires to the Trimble plug and made a check if all voltage is correct and left the PS unit to run on the table without load/connecting to the GPSDO, about 15min got a big bang and the Power Supply

Re: [time-nuts] Which GPS receiver?

2008-09-11 Thread Reeves Paul
Hello Murray, The ublox LEA-5T does not have the RAW data output facility of the LEA-4T, otherwise they are pretty much a drop-in replacement. This might be significant in some cases (and means I won't be giving up my LEA-4T system just yet...). I have a -5T on order and it will be interesting to