Re: [time-nuts] HP Z3816AHP 5087A
Bruce Griffiths wrote: > J. L. Trantham wrote: > >> I have acquired a HP 5087A that I plan to use to distribute the 10 MHz >> output of my HP Z3816A GPSDO and was wondering if anyone had a manual or any >> other information on the unit. >> >> Also, does anyone have a manual on the Z3816A? >> >> Thanks, >> >> Joe >> >> >> >> > Download the 5087A manual from the Agilent website. > > Bruce > > Oops thats only a supplement. I thought I had downloaded the 5087A manual from there, obviously it was from elsewhere that seems to have disappeared since. Bruce ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Thunderbolt Group Buy, part 1
My feelings exactly, I would have done the same except that (1) I already have a Tbolt, and I had so many messages, that I (2) started in the middle of the flood... The original message should have been worded in such a way to avoid a massive reply. At this price, I really had to convince myself that I *didn't* need another one! ;-) -Dave -- Original message -- From: Chuck Harris <[EMAIL PROTECTED]> > Before you get all angry, consider how most people view the list: > > IN LINEAR ORDER OF MESSAGES SENT! > > They see TVB's message about a new supply of Thunderbolts, and quickly > post a message saying: "me too!" > > It isn't until it's too late that they see the message saying that there > is no list, and don't bug the group (or TAPR) with requests for cheap GPSDO's. > > The real problem is TVB shouldn't have made the announcement until > TAPR was ready to deal with taking orders. (Can you blame him for > being excited?) > > And, I don't think there is any cause for you to insult list members and > call them cheapskates. They just want in on what turned out to be a much > better deal than was ever contemplated. Remember the earlier deal was for > several hundred dollars each. The new price changes the calculus completely. > > -Chuck Harris > > > > Bill Hawkins wrote: > > How about a firm statement that there is NO list being made of people > > who are clamoring for a cheap Thunderbolt. As long as the possibility > > exists that there is a list, people will keep ignoring John. > > > > Me, I invested $600 in Lucent boxes and have no return on them. I'll > > not throw good money after bad. > > > > Meanwhile, we get the names of the cheapskates . . . > > > > Bill Hawkins > > > > > > -Original Message- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > > Behalf Of [EMAIL PROTECTED] > > Sent: Tuesday, May 06, 2008 8:54 PM > > To: time-nuts@febo.com > > Subject: Re: [time-nuts] Thunderbolt Group Buy, part 1 > > > > Hi John, > > > > people are not getting it, and keep sending-in requests to this list... > > > > Is there any possibility to set up a mail alias that can get all these > > requests, and keep the noise off of this list as well? > > > > thanks, > > Said > > > > > > In a message dated 5/6/2008 09:57:55 Pacific Daylight Time, [EMAIL > > PROTECTED] > > writes: > > > > As I said below -- we will first send ordering information to those who > > were on the pre-order list last year, and then will announce how others > > may order. Please stay tuned, but also please don't clog up the TAPR > > inbox! > > > > Thanks, > > > > John > > > > > > > > ___ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Low profile coax connector?
After digging through boxes tonight, I found a few leftover bits from when I did some work for Trimble, in particular a couple of antennas from their early handheld units that I'll like to try out with a Jupiter board. I thought the connector was a Hirose H.FL (3mm tall) male, but I found some samples of those in the box and the grounding ring of the female is the same diameter as the H.FL male. Close, but no cigar as they say. It's also close to the Tyco OSMT/SSMT series, but the body has a corner bevel instead of the Tyco side bevel. Anyone know what the connector is? If not, I may just replace it with the H.FL or something a little larger. Thanks, -Dave ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Datum/Symmetricom BC637PCI TimeandFrequencyProcessor
Hi Greg, Good to see you are still around! Regards to Ron H if he's still there. I took another look for the CDs, but no luck. Can you liaise directly with Nigel to see if you can help him out. Cheers Rob Kimberley -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Greg Dowd Sent: 06 May 2008 19:33 To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Datum/Symmetricom BC637PCI TimeandFrequencyProcessor Let me know if you don't find them. I'm sure I have them as well. What OS, Win32? Greg Dowd gdowd at symmetricom dot com (antispam format) Symmetricom, Inc. www.symmetricom.com "Everything should be made as simple as possible, but no simpler" Albert Einstein -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rob Kimberley Sent: Tuesday, May 06, 2008 8:30 AM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Datum/Symmetricom BC637PCI Time andFrequencyProcessor Nigel, I've just had a look in the boxes with assorted software in, and not found them yet - sorry. I know I've got them somewhere! Will take another look later today or Wednesday. Rob -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: 06 May 2008 09:27 To: time-nuts@febo.com Subject: Re: [time-nuts] Datum/Symmetricom BC637PCI Time and FrequencyProcessor In a message dated 06/05/2008 08:17:03 GMT Daylight Time, [EMAIL PROTECTED] writes: I have some CDs in the store room, which Datum produced which have all their driver software on. I know they are in there somewhere, but since moving the last time (domestic split!), I haven't had a chance to sort through a lot of this stuff. Will try to take a look over the next couple of days, and if they are still there, then I'll send it over. -- Hi Rob That's very much appreciated, thank you. I'll keep my fingers crossed. regards Nigel GM8PZR ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Updated GPS Interface docs available
http://mg.gpsworld.com/gpsmg/Military+%26+Government+News/Air-Force-Updating -GPS-Interface-Docs-for-L5-L1C/ArticleStandard/Article/detail/515030?context CategoryId=33824 Rob K ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] HP Z3816AHP 5087A
J. L. Trantham wrote: > I have acquired a HP 5087A that I plan to use to distribute the 10 MHz > output of my HP Z3816A GPSDO and was wondering if anyone had a manual or any > other information on the unit. > > Also, does anyone have a manual on the Z3816A? > > Thanks, > > Joe > > > Download the 5087A manual from the Agilent website. Bruce ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] HP Z3816AHP 5087A
I have acquired a HP 5087A that I plan to use to distribute the 10 MHz output of my HP Z3816A GPSDO and was wondering if anyone had a manual or any other information on the unit. Also, does anyone have a manual on the Z3816A? Thanks, Joe ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] HP 5085A manual request
Hi Brian, I found my manuals for the 5085A. I have 2 of them. One is for series 604 and the other is for series 624. The 604 one has back dating info for series 524. The 624 has backdating for the 524, 604 and 616. Let me know if you are interested in a copy of either or both. They are each about 1/4 inch thick. I tried to reply off-line to you but the system wouldn't deliver to your e-mail address for some reason. Chuck Norton 719-314-7940 [EMAIL PROTECTED] ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Thunderbolt Group Buy, part 1
Before you get all angry, consider how most people view the list: IN LINEAR ORDER OF MESSAGES SENT! They see TVB's message about a new supply of Thunderbolts, and quickly post a message saying: "me too!" It isn't until it's too late that they see the message saying that there is no list, and don't bug the group (or TAPR) with requests for cheap GPSDO's. The real problem is TVB shouldn't have made the announcement until TAPR was ready to deal with taking orders. (Can you blame him for being excited?) And, I don't think there is any cause for you to insult list members and call them cheapskates. They just want in on what turned out to be a much better deal than was ever contemplated. Remember the earlier deal was for several hundred dollars each. The new price changes the calculus completely. -Chuck Harris Bill Hawkins wrote: > How about a firm statement that there is NO list being made of people > who are clamoring for a cheap Thunderbolt. As long as the possibility > exists that there is a list, people will keep ignoring John. > > Me, I invested $600 in Lucent boxes and have no return on them. I'll > not throw good money after bad. > > Meanwhile, we get the names of the cheapskates . . . > > Bill Hawkins > > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of [EMAIL PROTECTED] > Sent: Tuesday, May 06, 2008 8:54 PM > To: time-nuts@febo.com > Subject: Re: [time-nuts] Thunderbolt Group Buy, part 1 > > Hi John, > > people are not getting it, and keep sending-in requests to this list... > > Is there any possibility to set up a mail alias that can get all these > requests, and keep the noise off of this list as well? > > thanks, > Said > > > In a message dated 5/6/2008 09:57:55 Pacific Daylight Time, [EMAIL PROTECTED] > writes: > > As I said below -- we will first send ordering information to those who > were on the pre-order list last year, and then will announce how others > may order. Please stay tuned, but also please don't clog up the TAPR > inbox! > > Thanks, > > John > > > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Thunderbolt Group Buy, part 1
How about a firm statement that there is NO list being made of people who are clamoring for a cheap Thunderbolt. As long as the possibility exists that there is a list, people will keep ignoring John. Me, I invested $600 in Lucent boxes and have no return on them. I'll not throw good money after bad. Meanwhile, we get the names of the cheapskates . . . Bill Hawkins -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Tuesday, May 06, 2008 8:54 PM To: time-nuts@febo.com Subject: Re: [time-nuts] Thunderbolt Group Buy, part 1 Hi John, people are not getting it, and keep sending-in requests to this list... Is there any possibility to set up a mail alias that can get all these requests, and keep the noise off of this list as well? thanks, Said In a message dated 5/6/2008 09:57:55 Pacific Daylight Time, [EMAIL PROTECTED] writes: As I said below -- we will first send ordering information to those who were on the pre-order list last year, and then will announce how others may order. Please stay tuned, but also please don't clog up the TAPR inbox! Thanks, John ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Thunderbolt Group Buy, part 1
Hi John, people are not getting it, and keep sending-in requests to this list... Is there any possibility to set up a mail alias that can get all these requests, and keep the noise off of this list as well? thanks, Said In a message dated 5/6/2008 09:57:55 Pacific Daylight Time, [EMAIL PROTECTED] writes: As I said below -- we will first send ordering information to those who were on the pre-order list last year, and then will announce how others may order. Please stay tuned, but also please don't clog up the TAPR inbox! Thanks, John **Wondering what's for Dinner Tonight? Get new twists on family favorites at AOL Food. (http://food.aol.com/dinner-tonight?NCID=aolfod000301) ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Thunderbolt Group Buy, part 1
Hi Tom, I will gladly confirm my initial (13-2-2007) intention to buy one, even would like to up it to three units, if the supply allows for it. Lots of wayward standard-less places in my QTH, QRY, QRL etc. TIA for all the work done! Cheers, Hans PA0LED ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Datum/Symmetricom BC637PCI Time andFrequencyProcessor
Wow. An Acutime model bc637PCI? We didn't ship a Palisade version. That's reaching back a ways. Anyway, it's functionally the same as the more modern ace versions. There are a few linux refclock drivers for these around. IIRC, one is based on datum vme (refclock 16?). The SyncServer S100 that I created a few years ago was actually a headless 1U x86 computer with a bc637PCI and a modem plugged into it, running linux and ntp with refclock drivers along with a web server for control. I'll look for the xp stuff. Greg Dowd gdowd at symmetricom dot com (antispam format) Symmetricom, Inc. www.symmetricom.com "Everything should be made as simple as possible, but no simpler" Albert Einstein -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Björn Gabrielsson Sent: Tuesday, May 06, 2008 12:16 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Datum/Symmetricom BC637PCI Time andFrequencyProcessor I had it running on an winXP disc that crashed a few months ago. I have an older BC635PCI of the type that had external Trimble Acutime/Palisade for the GPS enabled versions. Anyone else with these Bancomm/Datum/Symmetricom PCI-cards wanting to run them on Linux/*BSD? Should be able to be a great timesource for an ntp-server. Maybe even more interesting would be to evaluate timing accuracy for a normal ntp server. -- Björn On Tue, May 6, 2008 20:32, Greg Dowd said: > Let me know if you don't find them. I'm sure I have them as well. > What OS, Win32? > > > Greg Dowd > gdowd at symmetricom dot com (antispam format) Symmetricom, Inc. > www.symmetricom.com > "Everything should be made as simple as possible, but no simpler" > Albert Einstein > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Rob Kimberley > Sent: Tuesday, May 06, 2008 8:30 AM > To: 'Discussion of precise time and frequency measurement' > Subject: Re: [time-nuts] Datum/Symmetricom BC637PCI Time > andFrequencyProcessor > > Nigel, > > I've just had a look in the boxes with assorted software in, and not > found them yet - sorry. I know I've got them somewhere! > > Will take another look later today or Wednesday. > > Rob > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of [EMAIL PROTECTED] > Sent: 06 May 2008 09:27 > To: time-nuts@febo.com > Subject: Re: [time-nuts] Datum/Symmetricom BC637PCI Time and > FrequencyProcessor > > > In a message dated 06/05/2008 08:17:03 GMT Daylight Time, > [EMAIL PROTECTED] writes: > > I have some CDs in the store room, which Datum produced which have > all their driver software on. I know they are in there somewhere, but > since moving the last time (domestic split!), I haven't had a chance > to sort through a lot of this stuff. > > Will try to take a look over the next couple of days, and if they are > still there, then I'll send it over. > > > -- > Hi Rob > > That's very much appreciated, thank you. > I'll keep my fingers crossed. > > regards > > Nigel > GM8PZR > > > > > ___ > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > > ___ > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > ___ > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Thunderbolt Buy
I am interested in being on the second set of buyers. Ronald ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Datum/Symmetricom BC637PCI Time andFrequencyProcessor
I had it running on an winXP disc that crashed a few months ago. I have an older BC635PCI of the type that had external Trimble Acutime/Palisade for the GPS enabled versions. Anyone else with these Bancomm/Datum/Symmetricom PCI-cards wanting to run them on Linux/*BSD? Should be able to be a great timesource for an ntp-server. Maybe even more interesting would be to evaluate timing accuracy for a normal ntp server. -- Björn On Tue, May 6, 2008 20:32, Greg Dowd said: > Let me know if you don't find them. I'm sure I have them as well. What > OS, Win32? > > > Greg Dowd > gdowd at symmetricom dot com (antispam format) > Symmetricom, Inc. > www.symmetricom.com > "Everything should be made as simple as possible, but no simpler" Albert > Einstein > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of Rob Kimberley > Sent: Tuesday, May 06, 2008 8:30 AM > To: 'Discussion of precise time and frequency measurement' > Subject: Re: [time-nuts] Datum/Symmetricom BC637PCI Time > andFrequencyProcessor > > Nigel, > > I've just had a look in the boxes with assorted software in, and not > found them yet - sorry. I know I've got them somewhere! > > Will take another look later today or Wednesday. > > Rob > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > Behalf Of [EMAIL PROTECTED] > Sent: 06 May 2008 09:27 > To: time-nuts@febo.com > Subject: Re: [time-nuts] Datum/Symmetricom BC637PCI Time and > FrequencyProcessor > > > In a message dated 06/05/2008 08:17:03 GMT Daylight Time, > [EMAIL PROTECTED] writes: > > I have some CDs in the store room, which Datum produced which have all > their driver software on. I know they are in there somewhere, but since > moving the last time (domestic split!), I haven't had a chance to sort > through a lot of this stuff. > > Will try to take a look over the next couple of days, and if they are > still there, then I'll send it over. > > > -- > Hi Rob > > That's very much appreciated, thank you. > I'll keep my fingers crossed. > > regards > > Nigel > GM8PZR > > > > > ___ > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > > ___ > time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Datum/Symmetricom BC637PCI Time andFrequencyProcessor
Let me know if you don't find them. I'm sure I have them as well. What OS, Win32? Greg Dowd gdowd at symmetricom dot com (antispam format) Symmetricom, Inc. www.symmetricom.com "Everything should be made as simple as possible, but no simpler" Albert Einstein -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rob Kimberley Sent: Tuesday, May 06, 2008 8:30 AM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Datum/Symmetricom BC637PCI Time andFrequencyProcessor Nigel, I've just had a look in the boxes with assorted software in, and not found them yet - sorry. I know I've got them somewhere! Will take another look later today or Wednesday. Rob -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: 06 May 2008 09:27 To: time-nuts@febo.com Subject: Re: [time-nuts] Datum/Symmetricom BC637PCI Time and FrequencyProcessor In a message dated 06/05/2008 08:17:03 GMT Daylight Time, [EMAIL PROTECTED] writes: I have some CDs in the store room, which Datum produced which have all their driver software on. I know they are in there somewhere, but since moving the last time (domestic split!), I haven't had a chance to sort through a lot of this stuff. Will try to take a look over the next couple of days, and if they are still there, then I'll send it over. -- Hi Rob That's very much appreciated, thank you. I'll keep my fingers crossed. regards Nigel GM8PZR ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Zeta Labs X76 Multiplier 7600 MHz Output Model 5856-01
Hi Matt: Is it possible to make a DC measurement (DMM Diode function) of the SRD forward and reverse voltage? Have Fun, Brooke Clarke 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.precisionclock.com http://www.prc68.com/I/WebCam2.shtml 24/7 Sky-Weather-Astronomy Web Cam Matt Ettus wrote: > On Mon, Apr 28, 2008 at 4:15 PM, Rick Karlquist <[EMAIL PROTECTED]> wrote: > >>I worked for Zeta Labs many years ago. This multiplier >> undoubtedly has a step recovery diode that is being driven >> at a level of a good watt or two. In most cases there was >> a hefty transistor to make this power. You probably need >> +10 dBm or so to drive it, maybe as much as +20 dBm. Take >> the cover off and look at the input section and it should >> be apparent if there is any additional gain. You can always >> start at 0 dBm and work up, looking at the power out as you >> go along. The adjustment of these can be very tricky, so >> proceed with extreme caution. > > > > Rick, > > I just got the multiplier. It draws about 220mA at 15V, but won't > produce any output. I've given it a wide range of input powers from > very low up to about 20dBm. I took off the bottom cover, but it only > exposes the back of a very complex circuit board. The only accessible > parts are the trimmer caps which come through the PCB. > > Any suggestions? > > Thanks, > Matt > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Zeta Labs X76 Multiplier 7600 MHz Output Model 5856-01
On Mon, Apr 28, 2008 at 4:15 PM, Rick Karlquist <[EMAIL PROTECTED]> wrote: > I worked for Zeta Labs many years ago. This multiplier > undoubtedly has a step recovery diode that is being driven > at a level of a good watt or two. In most cases there was > a hefty transistor to make this power. You probably need > +10 dBm or so to drive it, maybe as much as +20 dBm. Take > the cover off and look at the input section and it should > be apparent if there is any additional gain. You can always > start at 0 dBm and work up, looking at the power out as you > go along. The adjustment of these can be very tricky, so > proceed with extreme caution. Rick, I just got the multiplier. It draws about 220mA at 15V, but won't produce any output. I've given it a wide range of input powers from very low up to about 20dBm. I took off the bottom cover, but it only exposes the back of a very complex circuit board. The only accessible parts are the trimmer caps which come through the PCB. Any suggestions? Thanks, Matt ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] TrueTime GPS Antenna
The other day someone asked about an Antenna for the True-Time GPS Receiver. There are some Motorola Oncore antennas on the TAPR site for $10 that should work. I have a couple coming and I'll verify my assumption. 73, Dick, W1KSZ ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Thunderbolt Group Buy, part 1
People -- Please DO NOT call or email TAPR about the Thunderbolt group buy! As I mentioned in my other message, the office (which is one volunteer) is knee deep in getting ready for the Dayton Hamvention right now and is unable to respond. As I said below -- we will first send ordering information to those who were on the pre-order list last year, and then will announce how others may order. Please stay tuned, but also please don't clog up the TAPR inbox! Thanks, John John Ackermann N8UR wrote: > Folks -- > > We're glad there's such a response for the Tbolts, but please don't put > requests out on the list. > > Here's more-or-less what's going to happen; some details are still being > worked: > > 1. Folks who were on the original interest list from last year will get > an email within the next few weeks telling them how they can order the > units they signed up for. > > 2. After giving those folks some time to act, we'll open up the > ordering site to the public (and we'll announce that here) and then it > will be first come, first serve for the remaining units. > > It may be three or four weeks before this stuff happens, as TAPR is > getting ready now for the Dayton Hamvention on May 16-18, and we are > also madly shipping the first units from another project (the High > Performance SDR "Penelope" exciter module -- > http://www.tapr.org/kits_pene.html) so things are kind of hectic right now. > > Thanks, > > John > > > Gabriel A. Reyes-Davila wrote: >> Please add me to the list with one, and tell me what should i do next. >> Gabriel Reyes >> >>> 2) Those of you newcomers to Time-Nuts should expect >>>to wait until the first batch has been shipped and >>>TAPR is ready for you. There should be enough for >>>everyone; so don't panic. >>> >> ___ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> > > > ___ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] Thunderbolt Buy
I would like one of the units. Tnx Mitch W4OA No virus found in this outgoing message. Checked by AVG. Version: 7.5.524 / Virus Database: 269.23.9/1416 - Release Date: 05/05/08 17:11 ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Fast frequency counting question
Now we have gotten to the crux of the matter. You have to decide on one of two approaches: 1. The zero crossing is what is to be measured. In this case, you have to retain all harmonics. You cannot use most of the traditional frequency counting techniques. You must sample the zero crossing directly in the full bandwidth of the digital signal. The digital signal will have some phase noise floor. This noise floor, over the measurement bandwidth, will imply some jitter number by itself. For example, -150 dBc/Hz is equivalent to several ps of jitter. You have to take a huge number of samples for two reasons: First, only a few samples will be near a zero crossing. Second, you have to average away the jitter. 2. The phase noise model: a carrier with phase modulation noise. In this case you bandpass filter the signal to be measured. This gets rid of harmonics, producing a sine wave and also gets rid of the phase noise floor. You can now measure phase vs time and characterize your chirp. The bandpass has to be able to pass enough bandwidth to capture the chirp sidebands. For this approach, you can use the many known techniques of frequency measurement. Rick Karlquist N6RK Bruce Griffiths wrote: > Luis Cupido wrote: >> Hi Bruce, >> >> I don't know what you mean by low resolution >> but I can easily think of more than 12 bit at >> higher than 150Ms/s. >> >> > An ENOB of 12 is probably inadequate for useful single shot > measurements of a 40MHz sinewave . >> > will tend to limit the effective resolution in determining the zero >> > crossing locations. >> >> by no means zero crossing is to be used. we do have >> much more information than that... phase info is all over >> in all sampled points not just on zero crossings. >> This is why I've said some transform to produce a spectrogram. >> >> > The application is probably more sensitive to zero crossing jitter than > anything else. > If one directly samples the oscillator output directly the waveform may > not be even approximately sinusoidal. > With a logic level output oscillator a much higher sampling rate than > 100Msps may be required to adequately sample the transitions adequately ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Datum/Symmetricom BC637PCI Time and FrequencyProcessor
Nigel, I've just had a look in the boxes with assorted software in, and not found them yet - sorry. I know I've got them somewhere! Will take another look later today or Wednesday. Rob -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: 06 May 2008 09:27 To: time-nuts@febo.com Subject: Re: [time-nuts] Datum/Symmetricom BC637PCI Time and FrequencyProcessor In a message dated 06/05/2008 08:17:03 GMT Daylight Time, [EMAIL PROTECTED] writes: I have some CDs in the store room, which Datum produced which have all their driver software on. I know they are in there somewhere, but since moving the last time (domestic split!), I haven't had a chance to sort through a lot of this stuff. Will try to take a look over the next couple of days, and if they are still there, then I'll send it over. -- Hi Rob That's very much appreciated, thank you. I'll keep my fingers crossed. regards Nigel GM8PZR ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
[time-nuts] NTP Cheat Sheet...
A useful NTP document from Meinberg. http://www.meinberg.de/download/ntp/docs/ntp_cheat_sheet.pdf Rob Kimberley ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Thunderbolt
Will you be announcing to the group how to order these when they are ready? Rather than add to the flood of requests Thanks Tim ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Thunderbolt Group Buy, part 1
Tom, Others have replied with better prose, but allow me to offer my thanks as well. Having missed the opportunity to pre-order, I certainly do want one! Thanks again, Bob Ogburn ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Datum/Symmetricom BC637PCI Time and Frequency Processor
In a message dated 06/05/2008 08:17:03 GMT Daylight Time, [EMAIL PROTECTED] writes: I have some CDs in the store room, which Datum produced which have all their driver software on. I know they are in there somewhere, but since moving the last time (domestic split!), I haven't had a chance to sort through a lot of this stuff. Will try to take a look over the next couple of days, and if they are still there, then I'll send it over. -- Hi Rob That's very much appreciated, thank you. I'll keep my fingers crossed. regards Nigel GM8PZR ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Datum/Symmetricom BC637PCI Time and Frequency Processor
Nigel, I have some CDs in the store room, which Datum produced which have all their driver software on. I know they are in there somewhere, but since moving the last time (domestic split!), I haven't had a chance to sort through a lot of this stuff. Will try to take a look over the next couple of days, and if they are still there, then I'll send it over. Rob -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: 06 May 2008 00:35 To: time-nuts@febo.com Subject: [time-nuts] Datum/Symmetricom BC637PCI Time and Frequency Processor Hi All I've just bought a Datum BC637PCI Time and Frequency Processor on a PCI card from the usual place, model BC635PCI is identical but without the onboard GPS receiver, and am looking for any Windows drivers and/or the basic control software. I've found the manual and other documentation online, also documentation for the very similar Symmetricom BC637PCI_U that replaced it, but cannot find the drivers or software for either. The original Datum config and demo program was BC635CPP.exe, and TRAYTIMECPP.exe was a system clock utility. Symmetricom continued to supply Bc635cpp.exe with the BC637PCI_U but the clock utility was now named TrayTime.exe and there was also some GPS demo software called bc637PCI GPS Demo. I have 7 days after receipt to determine if all is working ok so if anyone can help, particularly with a copy of BC635CPP.exe, I'd be very grateful. regards Nigel GM8PZR ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
