Re: [time-nuts] Best phase detector / mixer for 100MHz?
Richard (Rick) Karlquist wrote: On 11/23/2012 9:38 AM, Bruce Griffiths wrote: NIST have shown (at least at 10MHz) that the high level mixers they tested are noisier than the ZRPD1. Bruce Do you have a citation to where they said that? What you quoted doesn't make sense, at least, out of context. We need to clarify phase detector sensitivity specs. For conventional (IE 50 ohm) phase detectors, it is apples vs apples to just go by the volts per radian number. However, mixers like the ZRPD1 artificially triple the voltage sensitivity by operating at 500 ohms, and using transformers to connect to 50 ohm equipment. Doing this doesn't increase the possible signal to noise ratio. Consider this thought experiment. Build your best 500 ohm phase detector and postamp. Now replace with a 50 ohm phase detector and connect 3 postamps in parallel. It is a wash. Of course, you don't have to actually do this. You can simply use an op amp like the LT1028 with very low noise voltage. To actually put a 500 ohm detector on a par with a 50 ohm detector, the 500 ohm detector would need to use 3 diodes in series compared to one in the 50 ohm case. With only one diode per arm, the maximum drive power utilization is considerably lower. Rick Karlquist N6RK http://tf.boulder.nist.gov/general/pdf/2556.pdf Where all the high level mixers measured have a higher phase noise than lower level mixers/phase detectors like the ZRPD1. 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] 12.8 MHz OCXO
Can anyone recommend an inexpensive 12.8 MHz OCXO that outputs a sine wave? I've looked online, but the only ones I find costs hundreds of dollars. Anything 0.25 ppm or better is fine. A Vcc of 5-13.8 VDC preferred. Joe Gray W5JG ___ 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] 12.8 MHz OCXO
With only 0.25ppm needed would a TCXO do? Howsabout this: http://www.kuhne-electronic.de/en/products/special-offer/128-mhz-crystal-oscillator-tcxo.html or http://www1.futureelectronics.com/doc/IQD%20FREQUENCY%20PRODUCTS/E4191LF.pdf or even http://cgi.ebay.com/310376642284 Dave -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Joseph Gray Sent: 24 November 2012 08:26 To: Discussion of precise time and frequency measurement Subject: [time-nuts] 12.8 MHz OCXO Can anyone recommend an inexpensive 12.8 MHz OCXO that outputs a sine wave? I've looked online, but the only ones I find costs hundreds of dollars. Anything 0.25 ppm or better is fine. A Vcc of 5-13.8 VDC preferred. Joe Gray W5JG ___ 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] 12.8 MHz OCXO
Le 24 nov. 2012 à 09:26, Joseph Gray a écrit : Can anyone recommend an inexpensive 12.8 MHz OCXO that outputs a sine wave? I've looked online, but the only ones I find costs hundreds of dollars. Anything 0.25 ppm or better is fine. A Vcc of 5-13.8 VDC preferred. An uncommon OCXO freq. If it is for hobby use, I would suggest using a more common quality reference and locking a cheap 12.8 vcxo / vctcxo to it with a pll. Joe Gray W5JG ___ 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] 12.8 MHz OCXO
Hi Joe, I can offer you from our stock at AXTAL the following excellent: - OCXO 12.8 MHz in 20x20 mm package HCMOS, 5 V, stability +-10 ppb, as our AXIOM30-50-10, but with reference voltage output of 4 V (instead of 3 V). Frequency can be tuned by using the VREF. See www.axtal.com for details Special ham price EUR 98.00 (or equivalent in US-$ plus freight. Payment by Paypal. I am not sure, if the freight cost may kill the opportunity for you. Bernd DK1AG -Ursprüngliche Nachricht- Von: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] Im Auftrag von Joseph Gray Gesendet: Samstag, 24. November 2012 09:26 An: Discussion of precise time and frequency measurement Betreff: [time-nuts] 12.8 MHz OCXO Can anyone recommend an inexpensive 12.8 MHz OCXO that outputs a sine wave? I've looked online, but the only ones I find costs hundreds of dollars. Anything 0.25 ppm or better is fine. A Vcc of 5-13.8 VDC preferred. Joe Gray W5JG ___ 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] Best phase detector / mixer for 100MHz?
Bruce Griffiths wrote: Richard (Rick) Karlquist wrote: On 11/23/2012 9:38 AM, Bruce Griffiths wrote: NIST have shown (at least at 10MHz) that the high level mixers they tested are noisier than the ZRPD1. Bruce http://tf.boulder.nist.gov/general/pdf/2556.pdf Where all the high level mixers measured have a higher phase noise than lower level mixers/phase detectors like the ZRPD1. Bruce This data is surprising. I am wondering if it is being corrupted by AM noise on the source? They do not mention what the source is. They could be measuring AM noise suppression differences in the phase detectors. Rick ___ 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] 12.8 MHz OCXO
David, Thanks for the links, but none of those meet my 0.25 ppm requirement. Joe Gray W5JG On Sat, Nov 24, 2012 at 1:55 AM, David C. Partridge david.partri...@perdrix.co.uk wrote: With only 0.25ppm needed would a TCXO do? Howsabout this: http://www.kuhne-electronic.de/en/products/special-offer/128-mhz-crystal-oscillator-tcxo.html or http://www1.futureelectronics.com/doc/IQD%20FREQUENCY%20PRODUCTS/E4191LF.pdf or even http://cgi.ebay.com/310376642284 Dave -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Joseph Gray Sent: 24 November 2012 08:26 To: Discussion of precise time and frequency measurement Subject: [time-nuts] 12.8 MHz OCXO Can anyone recommend an inexpensive 12.8 MHz OCXO that outputs a sine wave? I've looked online, but the only ones I find costs hundreds of dollars. Anything 0.25 ppm or better is fine. A Vcc of 5-13.8 VDC preferred. Joe Gray W5JG ___ 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] 12.8 MHz OCXO
Mike, Surprisingly, it isn' as uncommon as I first thought. The problem seems to be the cost, however. If I can't find something within my budget, I'll have to improvise. Joe Gray W5JG On Sat, Nov 24, 2012 at 1:53 AM, mike cook mc235...@gmail.com wrote: Le 24 nov. 2012 à 09:26, Joseph Gray a écrit : Can anyone recommend an inexpensive 12.8 MHz OCXO that outputs a sine wave? I've looked online, but the only ones I find costs hundreds of dollars. Anything 0.25 ppm or better is fine. A Vcc of 5-13.8 VDC preferred. An uncommon OCXO freq. If it is for hobby use, I would suggest using a more common quality reference and locking a cheap 12.8 vcxo / vctcxo to it with a pll. Joe Gray W5JG ___ 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] 12.8 MHz OCXO
Bernd, Thanks for the offer. However, I am trying to do my project as inexpensively as possible. I was hoping to find something suitable for less than $50, or perhaps a used OCXO on ebay for less. Joe Gray W5JG. On Sat, Nov 24, 2012 at 7:38 AM, Bernd Neubig bneu...@t-online.de wrote: Hi Joe, I can offer you from our stock at AXTAL the following excellent: - OCXO 12.8 MHz in 20x20 mm package HCMOS, 5 V, stability +-10 ppb, as our AXIOM30-50-10, but with reference voltage output of 4 V (instead of 3 V). Frequency can be tuned by using the VREF. See www.axtal.com for details Special ham price EUR 98.00 (or equivalent in US-$ plus freight. Payment by Paypal. I am not sure, if the freight cost may kill the opportunity for you. Bernd DK1AG -Ursprüngliche Nachricht- Von: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] Im Auftrag von Joseph Gray Gesendet: Samstag, 24. November 2012 09:26 An: Discussion of precise time and frequency measurement Betreff: [time-nuts] 12.8 MHz OCXO Can anyone recommend an inexpensive 12.8 MHz OCXO that outputs a sine wave? I've looked online, but the only ones I find costs hundreds of dollars. Anything 0.25 ppm or better is fine. A Vcc of 5-13.8 VDC preferred. Joe Gray W5JG ___ 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] C-MAC hookup
Joe do you have a model number I have a C-Mac data book for this company and they have a wide variety of packages Alan G3NYK - Original Message - From: Joseph Gray jg...@zianet.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Saturday, November 24, 2012 3:21 AM Subject: [time-nuts] C-MAC hookup A friend just got a C-MAC Sine 10MHz Double Oven Oscillator and asked me to see if anyone here knows how to hook it up and get it working. Joe Gray W5JG ___ 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] WWVB new modulation...
Hi Chris, I'm sure they're leaking pretty badly, but it's not enough to bother my normal usage. My other receivers do not hear my standards even though they are in the same rack, but the Heathkit does, even with an outside antenna. The Heathkit's front end is not shielded worth beans as it was not intended to operate in this kind of environment. My two DATUM 9390's feed two video D.A.'s Video Patch bays and all my cables are Belden 8281. The D.A.'s are rack mount and use plug in cards and are not that well enclosed. Burt, K6OQK From: Christopher Brown cbr...@woods.net To: time-nuts@febo.com Subject: Re: [time-nuts] WWVB new modulation... On 11/23/12 8:28 AM, Burt I. Weiner wrote: I still have two of the Heathkit clocks, but alas, they won't work at home because of my standards. Burt, K6OQK Are your equipment and interconnects leaking that badly? Burt I. Weiner Associates Broadcast Technical Services Glendale, California U.S.A. b...@att.net www.biwa.cc K6OQK ___ 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] 12.8 MHz OCXO
Joe the reason why its not so uncommon may not be obvious in the US :-)) 12.8MHz is used as a reference for commercial and amateur PLLs in Europe where the common channel spacing is 12.5kHz (/1024) or 6.25kHz (/2048). This may mean that 12.8MHz oscillators may be more easily found in Europe ?? A TCXO should be capable of 0.1ppm. I have seem a lot in mobile/cellular product from a UK firm called Golledge but I dont know what the specs were. Alan G3NYK - Original Message - From: Joseph Gray jg...@zianet.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Saturday, November 24, 2012 3:59 PM Subject: Re: [time-nuts] 12.8 MHz OCXO David, Thanks for the links, but none of those meet my 0.25 ppm requirement. Joe Gray W5JG On Sat, Nov 24, 2012 at 1:55 AM, David C. Partridge david.partri...@perdrix.co.uk wrote: With only 0.25ppm needed would a TCXO do? Howsabout this: http://www.kuhne-electronic.de/en/products/special-offer/128-mhz-crystal-oscillator-tcxo.html or http://www1.futureelectronics.com/doc/IQD%20FREQUENCY%20PRODUCTS/E4191LF.pdf or even http://cgi.ebay.com/310376642284 Dave -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Joseph Gray Sent: 24 November 2012 08:26 To: Discussion of precise time and frequency measurement Subject: [time-nuts] 12.8 MHz OCXO Can anyone recommend an inexpensive 12.8 MHz OCXO that outputs a sine wave? I've looked online, but the only ones I find costs hundreds of dollars. Anything 0.25 ppm or better is fine. A Vcc of 5-13.8 VDC preferred. Joe Gray W5JG ___ 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] 12.8 MHz OCXO
On 11/24/12 8:28 AM, Alan Melia wrote: Joe the reason why its not so uncommon may not be obvious in the US :-)) 12.8MHz is used as a reference for commercial and amateur PLLs in Europe where the common channel spacing is 12.5kHz (/1024) or 6.25kHz (/2048). This may mean that 12.8MHz oscillators may be more easily found in Europe ?? A TCXO should be capable of 0.1ppm. I have seem a lot in mobile/cellular product from a UK firm called Golledge but I dont know what the specs were. since it's for a low cost one-off project, what about a inexpensive 1ppm TCXO with some form of temperature stabilization (something as simple as a appropriate coefficient thermistor/resistor combination might hold temperature within a degree, while room temp fluctuates 10 degrees). Or do you need it to be stable over wild, rapid swings in temperature (e.g. it's outdoors or something). Or do you need good phase noise too (the run of the mill OCXO is quieter than the run of the mill TCXO) ___ 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] FE-5680A no 10MHz RF output?
I received a 'programmable' FE-5680A from nichegeek recently and I'm able to get it to lock (pin 3 goes low) and produce a PPS output (pin 6). However, it never produces a 10MHz output on pin 7. Is this unit defective, or is there something I might be doing wrong? My unit is labeled: FE-5680A UN 32575 S/N 45531 Revision: B. It's pretty banged up too, like someone took a drill to it :( James -- *Integrity is a binary state - either you have it or you don’t.* - John Doerr ___ 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] FE-5680A no 10MHz RF output?
I have a similar unit that I picked up a few years ago. It only has a 1 PPS output. That's the way it was designed. There are so many different versions of this stupid model that it's impossible to be sure what you're buying until you get it on your bench. If yours is like mine, the DDS is putting out 2^23 Hz (~8.39 MHz) which then goes through a fixed divider to 1 Hz. You can access the 8 MHz signal via a tiny socket on the DDS board. There is info online on how to modify the unit to bring that signal out to a connector and program it for other frequencies. If you change the frequency, the 1 PPS also changes frequency. Ed On 11/24/2012 10:53 AM, James Peroulas wrote: I received a 'programmable' FE-5680A from nichegeek recently and I'm able to get it to lock (pin 3 goes low) and produce a PPS output (pin 6). However, it never produces a 10MHz output on pin 7. Is this unit defective, or is there something I might be doing wrong? My unit is labeled: FE-5680A UN 32575 S/N 45531 Revision: B. It's pretty banged up too, like someone took a drill to it :( James ___ 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] C-MAC hookup
Alan, My friend only sent me what I posted. However, he emailed me this morning and said that he has what he needs now. Thanks to those who replied. Joe Gray W5JG On Sat, Nov 24, 2012 at 9:11 AM, Alan Melia alan.me...@btinternet.com wrote: Joe do you have a model number I have a C-Mac data book for this company and they have a wide variety of packages Alan G3NYK - Original Message - From: Joseph Gray jg...@zianet.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Saturday, November 24, 2012 3:21 AM Subject: [time-nuts] C-MAC hookup A friend just got a C-MAC Sine 10MHz Double Oven Oscillator and asked me to see if anyone here knows how to hook it up and get it working. Joe Gray W5JG ___ 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] FS/FT HP 5335A
Wanted: microwave counter. Must go to at least 18 GHz. For trade: HP 5335a. Working. HPIB, Enhanced HPIB triggering options, etc.. Depending on unit cash can be part of the trade. Pics and other docs, drop me a note. 73 de Norm n3ykf ___ 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] FS/FT HP 5335A
You might want to ask on the EIP_Microwave Yahoo Group. EIP made some of the best microwave counters ever. -John = Wanted: microwave counter. Must go to at least 18 GHz. For trade: HP 5335a. Working. HPIB, Enhanced HPIB triggering options, etc.. Depending on unit cash can be part of the trade. Pics and other docs, drop me a note. 73 de Norm n3ykf ___ 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] Best phase detector / mixer for 100MHz?
Rick Karlquist wrote: Bruce Griffiths wrote: Richard (Rick) Karlquist wrote: On 11/23/2012 9:38 AM, Bruce Griffiths wrote: NIST have shown (at least at 10MHz) that the high level mixers they tested are noisier than the ZRPD1. Bruce http://tf.boulder.nist.gov/general/pdf/2556.pdf Where all the high level mixers measured have a higher phase noise than lower level mixers/phase detectors like the ZRPD1. Bruce This data is surprising. I am wondering if it is being corrupted by AM noise on the source? They do not mention what the source is. They could be measuring AM noise suppression differences in the phase detectors. Rick Another potential issue is the relatively high input current noise of the IF amplifiers (see the paper's Reference 9). In the cross correlation setup used the IF amps both see the noise produced by the sum of the IF amp input noise current flowing in the mixer output impedance. This noise common to both IF amps isn't rejected by cross correlation. It can be more effective to use IF amps with very low input noise current that may have a higher input voltage noise. The effect of the amplifier input voltage noise is reduced by cross correlation. For offset frequencies =10Hz a well designed low noise amplifier with a discrete JFET input stage can have comparable voltage noise to the IF amp used with much lower input current noise. 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] FS/FT HP 5335A
I have a working EIP 371 that is surplus to my needs. It has the interesting source locking feature (described on my web site) Didier KO4BB Sent from my Droid Razr 4G LTE wireless tracker. -Original Message- From: Lizeth Norman normanliz...@gmail.com To: time-nuts@febo.com Sent: Sat, 24 Nov 2012 11:44 AM Subject: [time-nuts] FS/FT HP 5335A Wanted: microwave counter. Must go to at least 18 GHz. For trade: HP 5335a. Working. HPIB, Enhanced HPIB triggering options, etc.. Depending on unit cash can be part of the trade. Pics and other docs, drop me a note. 73 de Norm n3ykf ___ 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] Question re 1pps output on the Z3805A
Greetings. I recently acquired two Z3805A gpsdo's from the usual auction site. (These units look like a Z3801.) Does any one know the specified output level for the 1pps signals or have a high confidence measurement of the output voltage that they could share with me ? (Measuring fast rise time signals is not really my forte and I don't trust my measurements of an apparent .15 volt pulse.) The status message sent from the units via RS 232 contains a TFOM ( time figure of merit ?) variable and I've seen that phrase used in conjunction with equipment that outputs a 10 volt 1 pps pulse. On a side note so far I'm pleased with the performance of the units (the 10 Mhz output of better of the two has a typical adev in the low 10e-12 - high 10e-13 range, and appears to be improving.) Thanks in advance for any comments. Regards Mark Spencer. ___ 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] WWVB new modulation...
Ahh. Small lot w/ antenna restrictions here, so my main antenna is a inverted L 35ft from my second floor shack. Means that any leakage that can be detected in the shack with a small loop at 4 feet can be easily heard on the main antenna. So, filters and ferrite chokes on everything, LMR240, 400 or 400UF for everything except a few temp use jumper, and I clear all the seems of all the gear, check for leaks and even keep a few rolls of conductive adhesive copper EMI tape around. Like the be able to run all my gear without hearing it, and figure any egress is a potential egress. If the antenna 35ft away can hear it, then 500w transmit on the same antenna is likely to get in and screw with the gear. Chris - WL7CLA On 11/24/12 7:24 AM, Burt I. Weiner wrote: Hi Chris, I'm sure they're leaking pretty badly, but it's not enough to bother my normal usage. My other receivers do not hear my standards even though they are in the same rack, but the Heathkit does, even with an outside antenna. The Heathkit's front end is not shielded worth beans as it was not intended to operate in this kind of environment. My two DATUM 9390's feed two video D.A.'s Video Patch bays and all my cables are Belden 8281. The D.A.'s are rack mount and use plug in cards and are not that well enclosed. Burt, K6OQK From: Christopher Brown cbr...@woods.net To: time-nuts@febo.com Subject: Re: [time-nuts] WWVB new modulation... On 11/23/12 8:28 AM, Burt I. Weiner wrote: I still have two of the Heathkit clocks, but alas, they won't work at home because of my standards. Burt, K6OQK Are your equipment and interconnects leaking that badly? Burt I. Weiner Associates Broadcast Technical Services Glendale, California U.S.A. b...@att.net www.biwa.cc K6OQK ___ 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] FS/FT HP 5335A
Didier, What are you asking? Trade+ cash? 73 de Norm On Sat, Nov 24, 2012 at 3:50 PM, shali...@gmail.com wrote: I have a working EIP 371 that is surplus to my needs. It has the interesting source locking feature (described on my web site) Didier KO4BB Sent from my Droid Razr 4G LTE wireless tracker. -Original Message- From: Lizeth Norman normanliz...@gmail.com To: time-nuts@febo.com Sent: Sat, 24 Nov 2012 11:44 AM Subject: [time-nuts] FS/FT HP 5335A Wanted: microwave counter. Must go to at least 18 GHz. For trade: HP 5335a. Working. HPIB, Enhanced HPIB triggering options, etc.. Depending on unit cash can be part of the trade. Pics and other docs, drop me a note. 73 de Norm n3ykf ___ 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] Question re 1pps output on the Z3805A
Mark, Are you terminating the 1PPS output with 50 Ohms? They expect 1M Ohms.. Bye, Said Sent from my iPad On Nov 24, 2012, at 2:42 PM, Mark Spencer mspencer12...@yahoo.ca wrote: Greetings. I recently acquired two Z3805A gpsdo's from the usual auction site. (These units look like a Z3801.) Does any one know the specified output level for the 1pps signals or have a high confidence measurement of the output voltage that they could share with me ? (Measuring fast rise time signals is not really my forte and I don't trust my measurements of an apparent .15 volt pulse.) The status message sent from the units via RS 232 contains a TFOM ( time figure of merit ?) variable and I've seen that phrase used in conjunction with equipment that outputs a 10 volt 1 pps pulse. On a side note so far I'm pleased with the performance of the units (the 10 Mhz output of better of the two has a typical adev in the low 10e-12 - high 10e-13 range, and appears to be improving.) Thanks in advance for any comments. Regards Mark Spencer. ___ 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] Question re 1pps output on the Z3805A
and, yes, if your 'scope has the 50ohm/1Mohm input capability, use the 1M one. On Sun, Nov 25, 2012 at 12:03 AM, Azelio Boriani azelio.bori...@screen.itwrote: Usually the PPS output from the Z-series GPSDO is a 26uS wide (from the HP58503A datasheet) TTL pulse. To measure it you must use a fast oscilloscope (because of the fast pulse rise time) and an analog or digital memory (because of the very low repetition rate). The best is to use a digital sampling 'scope and set the trigger to NORMAL. On Sat, Nov 24, 2012 at 11:42 PM, Mark Spencer mspencer12...@yahoo.cawrote: Greetings. I recently acquired two Z3805A gpsdo's from the usual auction site. (These units look like a Z3801.) Does any one know the specified output level for the 1pps signals or have a high confidence measurement of the output voltage that they could share with me ? (Measuring fast rise time signals is not really my forte and I don't trust my measurements of an apparent .15 volt pulse.) The status message sent from the units via RS 232 contains a TFOM ( time figure of merit ?) variable and I've seen that phrase used in conjunction with equipment that outputs a 10 volt 1 pps pulse. On a side note so far I'm pleased with the performance of the units (the 10 Mhz output of better of the two has a typical adev in the low 10e-12 - high 10e-13 range, and appears to be improving.) Thanks in advance for any comments. Regards Mark Spencer. ___ 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] 12.8 MHz OCXO
I had a similar requirement a couple of years back. I ended up using a $10 VCXO, and a $20 Jupiter GPS. The circuit used was the one on page 12 of http://g4jnt.com/DDSVHFBeaconDriver.pdf by G4JNT. It just scraped in under $50 Dave Ww2r Message: 4 Date: Sat, 24 Nov 2012 09:01:25 -0700 From: Joseph Gray jg...@zianet.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] 12.8 MHz OCXO Message-ID: CAF7oPz2tiZTtqnmrp+xarCTowiJ==yqcgwk1_ebnozfdvna...@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1 Mike, Surprisingly, it isn' as uncommon as I first thought. The problem seems to be the cost, however. If I can't find something within my budget, I'll have to improvise. Joe Gray W5JG On Sat, Nov 24, 2012 at 1:53 AM, mike cook mc235...@gmail.com wrote: Le 24 nov. 2012 ? 09:26, Joseph Gray a ?crit : Can anyone recommend an inexpensive 12.8 MHz OCXO that outputs a sine wave? I've looked online, but the only ones I find costs hundreds of dollars. Anything 0.25 ppm or better is fine. A Vcc of 5-13.8 VDC preferred. An uncommon OCXO freq. If it is for hobby use, I would suggest using a more common quality reference and locking a cheap 12.8 vcxo / vctcxo to it with a pll. Joe Gray W5JG ___ 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] Question re 1pps output on the Z3805A
Usually the PPS output from the Z-series GPSDO is a 26uS wide (from the HP58503A datasheet) TTL pulse. To measure it you must use a fast oscilloscope (because of the fast pulse rise time) and an analog or digital memory (because of the very low repetition rate). The best is to use a digital sampling 'scope and set the trigger to NORMAL. On Sat, Nov 24, 2012 at 11:42 PM, Mark Spencer mspencer12...@yahoo.cawrote: Greetings. I recently acquired two Z3805A gpsdo's from the usual auction site. (These units look like a Z3801.) Does any one know the specified output level for the 1pps signals or have a high confidence measurement of the output voltage that they could share with me ? (Measuring fast rise time signals is not really my forte and I don't trust my measurements of an apparent .15 volt pulse.) The status message sent from the units via RS 232 contains a TFOM ( time figure of merit ?) variable and I've seen that phrase used in conjunction with equipment that outputs a 10 volt 1 pps pulse. On a side note so far I'm pleased with the performance of the units (the 10 Mhz output of better of the two has a typical adev in the low 10e-12 - high 10e-13 range, and appears to be improving.) Thanks in advance for any comments. Regards Mark Spencer. ___ 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] Question re 1pps output on the Z3805A
mspencer12...@yahoo.ca said: Does any one know the specified output level for the 1pps signals or have a high confidence measurement of the output voltage that they could share with me ? (Measuring fast rise time signals is not really my forte and I don't trust my measurements of an apparent .15 volt pulse.) My guess would be close to 5V. That's convenient to work with and it's what you get from old digital chips using TTL era switching levels. They used 5V power supplies. You may only get 4V if they used a non-CMOS chip. That's assuming you are not using a 50 ohm terminator. How did you measure 0.15 volts? The pulse is probably about 10 microseconds wide. If you have a scope, you can probably see it, even with an old analog scope. You may not be able to measure the rise time, but you can see the pulse width. The trick is to set things up for triggered sweep and then adjust the trigger level until it triggers. Use the triggered light rather than looking at the picture. Set the sweep speed to 1/10 second for the whole screen (10 ms per div) so it's ready again for the next pulse. Take your time. You have to wait a whole second to see if your adjustment worked. You can use the beam as a triggered-light. Adjust the vertical offset and brightness so you can see the beam. (Switch to auto triggering if you need to find the beam.) After you get it triggering, you can adjust the sweep speed and brightness to show you the pulse. It may help to dim the room lights. You won't be able to look at the picture, only catch a glimpse of it. But if you look at the area of interest, you can see that area when the next pulse goes off. -- These are my opinions. I hate spam. ___ 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] Question re 1pps output on the Z3805A
TTL transition times are not all that fast, about 6ns for LS TTL, and with a 26uS pulse width, you would only need a fast oscilloscope to characterize the pulse edges. Delay, phase, and pulse height measurements in this case could be made even with a 20 MHz, 0.35/20Mhz=17.5ns rise and fall time, oscilloscope. Any storage oscilloscope, digital or analog, will work great for such a low repetition rate signal but a sampling oscilloscope in the traditional sense would be exactly the wrong instrument. It is unfortunately and confusing that DSO could stand for either digital storage oscilloscope or digital sampling oscilloscope and marketing departments sure have not helped distinguish the two very different instruments. A good analog oscilloscope using normal as oppose to automatic triggering in a dark room will work if you are desperate. I have done it but it is tedious and headache prone work. On Sun, 25 Nov 2012 00:03:37 +0100, Azelio Boriani azelio.bori...@screen.it wrote: Usually the PPS output from the Z-series GPSDO is a 26uS wide (from the HP58503A datasheet) TTL pulse. To measure it you must use a fast oscilloscope (because of the fast pulse rise time) and an analog or digital memory (because of the very low repetition rate). The best is to use a digital sampling 'scope and set the trigger to NORMAL. On Sat, Nov 24, 2012 at 11:42 PM, Mark Spencer mspencer12...@yahoo.cawrote: Greetings. I recently acquired two Z3805A gpsdo's from the usual auction site. (These units look like a Z3801.) Does any one know the specified output level for the 1pps signals or have a high confidence measurement of the output voltage that they could share with me ? (Measuring fast rise time signals is not really my forte and I don't trust my measurements of an apparent .15 volt pulse.) The status message sent from the units via RS 232 contains a TFOM ( time figure of merit ?) variable and I've seen that phrase used in conjunction with equipment that outputs a 10 volt 1 pps pulse. On a side note so far I'm pleased with the performance of the units (the 10 Mhz output of better of the two has a typical adev in the low 10e-12 - high 10e-13 range, and appears to be improving.) Thanks in advance for any comments. Regards Mark Spencer. ___ 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] 5061A AC Power connector
What is the MS type for the power plug for a 5061A ? I could not find it in the PDF I have. -pete ___ 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] Question re 1pps output on the Z3805A
Thanks all for the responses. I am routing the signal via 50 ohm coax to the 1Meg ohm input of a 100 Mhz analog scope using dc coupling. After some fiddling with the trigger settings I am able to observe a brief pulse every second that appears to be .15 volts above ground. I'm not inclined to believe that the signal is actually .15 volts though. I did try terminating the scope end of the coax with a 50 ohm load and the signal as displayed on the scope didn't change. I recall making similar measurements in the past and seeing more reasonable results. I really don't want to blow the inputs on my 5370B's hence my caution here. I did try connecting the signal to one of my 5335B's and based on the trigger settings I was able to use to get that counter to trigger I'm inclined to believe it is 3.3 or 5 volt TTL level but I'm not 100 percent sure. I'll have to do some more experimenting with my analog with other 1pps signal sources to gain more confidence in my measurements and or ask Santa for a digital storage scope (: Regards Mark Spencer ___ 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] Question re 1pps output on the Z3805A
I can think of some possibilities with the caveat that I am not familiar with the Z3805A units: 1. The PPS output could be damaged. 2. The PPS output could be an open collector/drain output which requires a pull-up resistor since it can only sink current. 3. The PPS output might have trouble driving a 50 ohm transmission line. Try measuring it directly with a x10 oscilloscope probe and no coaxial cable. 4. Maybe your oscilloscope is triggering on the trailing edge or some other signal aberration so you are missing the real pulse. Be sure to use DC coupling for both the input *and* the trigger. I have gotten caught by this a few times when initially measuring PPS outputs. You could make a simple diode/capacitor peak detector to measure the peak output voltage with a digital multimeter. With a typical 10 MOhm input, I would start with a 0.1uF capacitor for a time constant of 1 second. It will not be super accurate but might save some sanity. On Sat, 24 Nov 2012 16:52:50 -0800 (PST), Mark Spencer mspencer12...@yahoo.ca wrote: Thanks all for the responses. I am routing the signal via 50 ohm coax to the 1Meg ohm input of a 100 Mhz analog scope using dc coupling. After some fiddling with the trigger settings I am able to observe a brief pulse every second that appears to be .15 volts above ground. I'm not inclined to believe that the signal is actually .15 volts though. I did try terminating the scope end of the coax with a 50 ohm load and the signal as displayed on the scope didn't change. I recall making similar measurements in the past and seeing more reasonable results. I really don't want to blow the inputs on my 5370B's hence my caution here. I did try connecting the signal to one of my 5335B's and based on the trigger settings I was able to use to get that counter to trigger I'm inclined to believe it is 3.3 or 5 volt TTL level but I'm not 100 percent sure. I'll have to do some more experimenting with my analog with other 1pps signal sources to gain more confidence in my measurements and or ask Santa for a digital storage scope (: Regards Mark Spencer ___ 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] 5061A AC Power connector
Pete, In the US, Galco sells a DDK product that works well. The connector and shell are a DMS3106A18-22S. http://www.galco.com/buy/DDK/DMS3106A18-22S You will also need a clamp and strain relief. I use a DMS3057-10A. http://www.galco.com/buy/DDK/DMS3057-10A It is the same connector as a 5065A though you have to be careful about the wiring. Some of the 5065A's are the same as the 5061A and others are different. Hope this helps. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Pete Lancashire Sent: Saturday, November 24, 2012 6:51 PM To: Discussion of precise time and frequency measurement Subject: [time-nuts] 5061A AC Power connector What is the MS type for the power plug for a 5061A ? I could not find it in the PDF I have. -pete ___ 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] 5061A AC Power connector
I hoped it helped also. I know it did for me. Will order 2 sets so I can finally have real connectors on the 5061 and 5065. I wonder if its the same for the standby power supply may need to order 3. Regards Paul WB8TSL On Sat, Nov 24, 2012 at 9:35 PM, J. L. Trantham jlt...@att.net wrote: Pete, In the US, Galco sells a DDK product that works well. The connector and shell are a DMS3106A18-22S. http://www.galco.com/buy/DDK/DMS3106A18-22S You will also need a clamp and strain relief. I use a DMS3057-10A. http://www.galco.com/buy/DDK/DMS3057-10A It is the same connector as a 5065A though you have to be careful about the wiring. Some of the 5065A's are the same as the 5061A and others are different. Hope this helps. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Pete Lancashire Sent: Saturday, November 24, 2012 6:51 PM To: Discussion of precise time and frequency measurement Subject: [time-nuts] 5061A AC Power connector What is the MS type for the power plug for a 5061A ? I could not find it in the PDF I have. -pete ___ 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] 5061A AC Power connector
http://www.leapsecond.com/museum/hp5065a/conn.htm /tvb (iPhone4) On Nov 24, 2012, at 4:50 PM, Pete Lancashire p...@petelancashire.com wrote: What is the MS type for the power plug for a 5061A ? I could not find it in the PDF I have. -pete ___ 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] 5061A AC Power connector
Paul, According to the 5089 manual, the power connector is the same. Both the 5085 and 5089 call for the same HP part number for the AC power cord. Therefore, I suspect they are the same. I have a 5085 hooked up and I can make sure tomorrow if you need it. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of paul swed Sent: Saturday, November 24, 2012 9:06 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] 5061A AC Power connector I hoped it helped also. I know it did for me. Will order 2 sets so I can finally have real connectors on the 5061 and 5065. I wonder if its the same for the standby power supply may need to order 3. Regards Paul WB8TSL On Sat, Nov 24, 2012 at 9:35 PM, J. L. Trantham jlt...@att.net wrote: Pete, In the US, Galco sells a DDK product that works well. The connector and shell are a DMS3106A18-22S. http://www.galco.com/buy/DDK/DMS3106A18-22S You will also need a clamp and strain relief. I use a DMS3057-10A. http://www.galco.com/buy/DDK/DMS3057-10A It is the same connector as a 5065A though you have to be careful about the wiring. Some of the 5065A's are the same as the 5061A and others are different. Hope this helps. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Pete Lancashire Sent: Saturday, November 24, 2012 6:51 PM To: Discussion of precise time and frequency measurement Subject: [time-nuts] 5061A AC Power connector What is the MS type for the power plug for a 5061A ? I could not find it in the PDF I have. -pete ___ 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] 5061A AC Power connector
18-22S is what I needed, now to go into the depths of the garaged and find the box of MS connectors. -pete On Sat, Nov 24, 2012 at 6:35 PM, J. L. Trantham jlt...@att.net wrote: Pete, In the US, Galco sells a DDK product that works well. The connector and shell are a DMS3106A18-22S. http://www.galco.com/buy/DDK/DMS3106A18-22S You will also need a clamp and strain relief. I use a DMS3057-10A. http://www.galco.com/buy/DDK/DMS3057-10A It is the same connector as a 5065A though you have to be careful about the wiring. Some of the 5065A's are the same as the 5061A and others are different. Hope this helps. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Pete Lancashire Sent: Saturday, November 24, 2012 6:51 PM To: Discussion of precise time and frequency measurement Subject: [time-nuts] 5061A AC Power connector What is the MS type for the power plug for a 5061A ? I could not find it in the PDF I have. -pete ___ 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] 5061A AC Power connector
I've had a few emails on what I meant by just needing the 18-22S. The series of connectors this on is from came out in WW2 to attempt to standardize on connectors. One feature is the outer shell and the inner insulated center are interchangeable. This glossy gives a pretty good overview and how its done http://www.ittcannon.com/uploadedFiles/Product_PDFs/MS%20AB%20Catalog.pdf -pete On Sat, Nov 24, 2012 at 7:40 PM, Pete Lancashire p...@petelancashire.com wrote: 18-22S is what I needed, now to go into the depths of the garaged and find the box of MS connectors. -pete On Sat, Nov 24, 2012 at 6:35 PM, J. L. Trantham jlt...@att.net wrote: Pete, In the US, Galco sells a DDK product that works well. The connector and shell are a DMS3106A18-22S. http://www.galco.com/buy/DDK/DMS3106A18-22S You will also need a clamp and strain relief. I use a DMS3057-10A. http://www.galco.com/buy/DDK/DMS3057-10A It is the same connector as a 5065A though you have to be careful about the wiring. Some of the 5065A's are the same as the 5061A and others are different. Hope this helps. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Pete Lancashire Sent: Saturday, November 24, 2012 6:51 PM To: Discussion of precise time and frequency measurement Subject: [time-nuts] 5061A AC Power connector What is the MS type for the power plug for a 5061A ? I could not find it in the PDF I have. -pete ___ 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] 5061A AC Power connector
Forgot to mention, when you get the DMS3106A18-22S, you'll have to unscrew the back, remove the connector insert, file out a small 'key' in the material, and rotate the insert to achieve the desired alignment to mate with the connector on the 5061A or the 5065A. The alignment is the same on both but the wiring might be different. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of J. L. Trantham Sent: Saturday, November 24, 2012 8:36 PM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] 5061A AC Power connector Pete, In the US, Galco sells a DDK product that works well. The connector and shell are a DMS3106A18-22S. http://www.galco.com/buy/DDK/DMS3106A18-22S You will also need a clamp and strain relief. I use a DMS3057-10A. http://www.galco.com/buy/DDK/DMS3057-10A It is the same connector as a 5065A though you have to be careful about the wiring. Some of the 5065A's are the same as the 5061A and others are different. Hope this helps. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Pete Lancashire Sent: Saturday, November 24, 2012 6:51 PM To: Discussion of precise time and frequency measurement Subject: [time-nuts] 5061A AC Power connector What is the MS type for the power plug for a 5061A ? I could not find it in the PDF I have. -pete ___ 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] 5061A AC Power connector
Unfortunately, my junk box is not so well stocked with MS connectors. The DDK units are much cheaper than the Cannon connectors. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Pete Lancashire Sent: Saturday, November 24, 2012 9:45 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] 5061A AC Power connector I've had a few emails on what I meant by just needing the 18-22S. The series of connectors this on is from came out in WW2 to attempt to standardize on connectors. One feature is the outer shell and the inner insulated center are interchangeable. This glossy gives a pretty good overview and how its done http://www.ittcannon.com/uploadedFiles/Product_PDFs/MS%20AB%20Catalog.pdf -pete On Sat, Nov 24, 2012 at 7:40 PM, Pete Lancashire p...@petelancashire.com wrote: 18-22S is what I needed, now to go into the depths of the garaged and find the box of MS connectors. -pete On Sat, Nov 24, 2012 at 6:35 PM, J. L. Trantham jlt...@att.net wrote: Pete, In the US, Galco sells a DDK product that works well. The connector and shell are a DMS3106A18-22S. http://www.galco.com/buy/DDK/DMS3106A18-22S You will also need a clamp and strain relief. I use a DMS3057-10A. http://www.galco.com/buy/DDK/DMS3057-10A It is the same connector as a 5065A though you have to be careful about the wiring. Some of the 5065A's are the same as the 5061A and others are different. Hope this helps. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Pete Lancashire Sent: Saturday, November 24, 2012 6:51 PM To: Discussion of precise time and frequency measurement Subject: [time-nuts] 5061A AC Power connector What is the MS type for the power plug for a 5061A ? I could not find it in the PDF I have. -pete ___ 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] 5061A AC Power connector
On Sat, Nov 24, 2012 at 08:35:44PM -0600, J. L. Trantham wrote: Pete, In the US, Galco sells a DDK product that works well. The connector and shell are a DMS3106A18-22S. http://www.galco.com/buy/DDK/DMS3106A18-22S You will also need a clamp and strain relief. I use a DMS3057-10A. http://www.galco.com/buy/DDK/DMS3057-10A Thanks, one less living in sin thing in my life... An official connector ! -- Dave Emery N1PRE/AE, d...@dieconsulting.com DIE Consulting, Weston, Mass 02493 An empty zombie mind with a forlorn barely readable weatherbeaten 'For Rent' sign still vainly flapping outside on the weed encrusted pole - in celebration of what could have been, but wasn't and is not to be now either. ___ 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] 5061A AC Power connector
If you are going to be filing them, then you should wear a face mask - the base plating on those things (even now) is normally Cadmium. What you actually want is a MS3106A18-22SW, but it looks like that vendor only supplies connectors with the default polarization. On Sun, Nov 25, 2012 at 10:48 AM, J. L. Trantham jlt...@att.net wrote: Forgot to mention, when you get the DMS3106A18-22S, you'll have to unscrew the back, remove the connector insert, file out a small 'key' in the material, and rotate the insert to achieve the desired alignment to mate with the connector on the 5061A or the 5065A. The alignment is the same on both but the wiring might be different. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of J. L. Trantham Sent: Saturday, November 24, 2012 8:36 PM To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] 5061A AC Power connector Pete, In the US, Galco sells a DDK product that works well. The connector and shell are a DMS3106A18-22S. http://www.galco.com/buy/DDK/DMS3106A18-22S You will also need a clamp and strain relief. I use a DMS3057-10A. http://www.galco.com/buy/DDK/DMS3057-10A It is the same connector as a 5065A though you have to be careful about the wiring. Some of the 5065A's are the same as the 5061A and others are different. Hope this helps. Joe -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Pete Lancashire Sent: Saturday, November 24, 2012 6:51 PM To: Discussion of precise time and frequency measurement Subject: [time-nuts] 5061A AC Power connector What is the MS type for the power plug for a 5061A ? I could not find it in the PDF I have. -pete ___ 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.
