Re: [time-nuts] DIY Frequency extension for HP Agilent 53181A, 53131A or 53181A

2009-02-15 Thread J. L. Trantham
Rick, I have been 'reading the mail' on this discussion and have a somewhat off topic question. I acquired a 5334B that has a 'noisy' channel C. It originally did not read when fed a signal. I then adjusted R328, the peak detector, and then it correctly read the signal. However, when I disconn

Re: [time-nuts] DIY Frequency extension for HP Agilent 53181A, 53131A or 53181A

2009-02-15 Thread Samuel D. [x86/CPC]
About prescaler : Well, that's not as simple as I first thought. First, I need a prescaler able to ramp from 100 MHz to 3+ GHz. And all prescalers I saw come with horrible sensitivity in the 0.1-0.4 GHz range. More, they are all obsoletes and not produced anymore. Now, I understand the choice of

Re: [time-nuts] Kinemetrics Truetime 60-DC

2009-02-15 Thread Had
John, What version of Adobe reader are you using. Should be 7.0 or later. The pdf was created with Adobe Pro 7.something and opens just fine in Reader 8 or 9. Had At 01:23 PM 2/15/2009, you wrote: >Hello, For some reason I cannot open the Kinemetrics Truetime 60-DC page. >I can open any of

Re: [time-nuts] Tbolt temperature sensor

2009-02-15 Thread SAIDJACK
Hello Tom, over the last week we've been doing a test on a double oven Fury GPSDO in response to our discussion. The first part of the test was running the unit on the lab bench without modifications. A couple of days ago, we removed the OCXO Supply regulator feedback sense resistor, and

Re: [time-nuts] buyers freewave -ranger -superstar ll -thales B12 -cmc allstar -micro pulse ant

2009-02-15 Thread Bruce Griffiths
For the Superstar II: Probably the only way to tell is to 1) determine if the model is a 3.3V or a 5V version Maybe the ARM chip part No. or the 10MHz on board TCVXO part No. will help with this. 2) Power it up and query using Starview. Message 45 can be used to tell how much memory it has. The

[time-nuts] New Distribution Amplifier Kit

2009-02-15 Thread dave powis
Hello all, Just to let you know that I've added a 4 way distribution amplifier kit to my products at http://g4hup.com/DA/DA1_4.htm. I'll also openly tell you that is not intended as a high quality lab instrument, but is a simple general purpose tool intended for distribution of signals anywher

[time-nuts] buyers freewave -ranger -superstar ll -thales B12 -cmc allstar -micro pulse ant

2009-02-15 Thread Flash Crews
hi looking for buyers and maybe price range - used not new freewave p/n DGRC9p/n ranger-RSp/n DGRC9ras I HAVE OVER 160+ OF THIS ITEM CMC ALLSTAR 12 GPS BASE CARD I HAVE OVER 250+ NOT SURE WHERE TO LOOK FOR PART # SUPERSTAR 2 I HAVE OVER 50+ NOT SURE WHERE TO LOOK FOR PART # T

Re: [time-nuts] DIY Frequency extension for HP Agilent 53181A, 53131A or 53181A

2009-02-15 Thread Samuel D. [x86/CPC]
You're right. On the J2 connector, there is : * Frequency output : Where the divided input frequency goes. - Pin 2 on counter - Pin 6 on EXT_PCB * CH3CODE0 & CH3CODE1 : Used to detect the type of prescaler - Pin 9&10 on counter - Pin 5&10 on EXT_PCB - 1/1 on 12.4 GHz board - 0/0 on 3 GHz boa

Re: [time-nuts] DIY Frequency extension for HP Agilent 53181A, 53131A or 53181A

2009-02-15 Thread Brooke Clarke
Hi Samuel: The 2x5 pin connector pin out is not at all clear. Your Channel 3 photo seems to show: #Chan 3 1 DCOM 2 CH3 Out 3 4 5 6 +12 in 7 8 DCOM 9 10 Fun gnd Your 12.4 Ghz photo has the ribbon cable covering the PCB at the co

Re: [time-nuts] DIY Frequency extension for HP Agilent 53181A, 53131A or 53181A

2009-02-15 Thread RFSPACE
Samuel, The prescaler option is detected by pin 9 and 10 of the 10 pin header. If you look at the page3 of 4 of the 53132A, you see a pair of pins called CH3CODE1 and CH3CODE0. Those tell the processor that the board is plugged in. If you go to the page for the 12.4 GHz prescaler, you can see t

Re: [time-nuts] DIY Frequency extension for HP Agilent 53181A, 53131A or 53181A

2009-02-15 Thread Rick Karlquist
Richard H McCorkle wrote: > Hi Samuel, > > I suggest starting by downloading the component level information for > the 53131A and 53132A from tha Agilent site at the following links. > > http://cp.literature.agilent.com/litweb/pdf/5989-6308EN.pdf > http://cp.literature.agilent.com/litweb/pdf/5989-6

Re: [time-nuts] DIY Frequency extension for HP Agilent 53181A, 53131A or 53181A

2009-02-15 Thread RFSPACE
There is probably a voltage on one of the pins that detects the presence of the board. Pieter - Original Message - From: "Rick Karlquist" To: "Discussion of precise time and frequency measurement" Sent: Sunday, February 15, 2009 2:39 PM Subject: Re: [time-nuts] DIY Frequency extensi

Re: [time-nuts] DIY Frequency extension for HP Agilent 53181A, 53131A or 53181A

2009-02-15 Thread Rick Karlquist
Samuel D. [x86/CPC] wrote: > - How does the counter aware about the option used ? There is no > "intelligence" on the option board, so, the counter may detect the type of > prescaler with some pull-up or pull-down resistors somewhere. Don't be surprised if the option is activated in software. The

Re: [time-nuts] DIY Frequency extension for HP Agilent 53181A, 53131A or 53181A

2009-02-15 Thread Richard H McCorkle
Hi Samuel, I suggest starting by downloading the component level information for the 53131A and 53132A from tha Agilent site at the following links. http://cp.literature.agilent.com/litweb/pdf/5989-6308EN.pdf http://cp.literature.agilent.com/litweb/pdf/5989-6307EN.pdf The 53132A document include

Re: [time-nuts] DIY Frequency extension for HP Agilent 53181A, 53131A or 53181A

2009-02-15 Thread Samuel D. [x86/CPC]
> If you download the 53132A component level information manual from the > Agilent site you'll find a schematic of the channel 3 board with values and J2 > pinout. The 53131A version of this manual doesn't seem to include this. Excellent ! I only checked the 53131A datasheet without success.

Re: [time-nuts] Kinemetrics Truetime 60-DC

2009-02-15 Thread surplus1
Hello, For some reason I cannot open the Kinemetrics Truetime 60-DC page. I can open any of the others listed but not the one that I want. Any advice?? Thanks, John in WV- Original Message - From: "Had" To: "Discussion of precise time and frequency measurement" Sent: Sunday, February

Re: [time-nuts] Kinemetrics Truetime 60-DC

2009-02-15 Thread Had
John, Go to www.to-way.com it is in the time-nut page. Had K7MLR At 12:09 PM 2/15/2009, you wrote: >I am looking for a manual for the Kinemetrics Truetime 60-DC time >receiver. John Bartholomewsurpl...@prodigy.net Thanks >___ >time-nuts ma

Re: [time-nuts] DIY Frequency extension for HP Agilent 53181A, 53131A or 53181A

2009-02-15 Thread GandalfG8
In a message dated 15/02/2009 17:05:21 GMT Standard Time, s...@canardpc.com writes: - What's the divider ratio used ? Perhaps /16 for 3 GHz, /32 for 5 GHz, and /64 for 12.4 GHz, but we really need to be sure. - What's the gain of each one of the four amplifiers present ? - How does the coun

[time-nuts] Kinemetrics Truetime 60-DC

2009-02-15 Thread surplus1
I am looking for a manual for the Kinemetrics Truetime 60-DC time receiver. John Bartholomewsurpl...@prodigy.net Thanks ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Re: [time-nuts] DIY Frequency extension for HP Agilent 53181A, 53131A or 53181A

2009-02-15 Thread Samuel D. [x86/CPC]
Thanks for your answers. About the components, I think my first prototype will use some very well-known prescaler and amplifiers like Hittite HMC363 and Mini-circuits ERA-1SM, only to validate the design. I will use a 100 MHz high-pass filter, but overall, it will be a wide-band, low-sensitivity d