Re: [time-nuts] Frequency counter recommendation

> it exists and it is called CDC class: > > > On Windows (for the the serial adapters) it was completely supported from XP > (SP2?). SP3 fixes several obscure issues such as the problem with 'combined' functions, say a Keyboard and Ser

Re: [time-nuts] Frequency counter recommendation - Basic

> >>> >>> The 5328 will also take a 10881. Plugs right into the motherboard. >> > > You go via a separate board to have a 10811 oscillator. It is not uncommon > for 10811s to be delivered with this board since some figure they get more > by selling the 5328 separate from the 10811. Ah well. I use

Re: [time-nuts] Frequency counter recommendation - Basic

On 12/23/2010 04:29 PM, Bob Bownes wrote: The other is what one can buy on the market that is better than the HP 5328? The first step up IMHO is the HP 5335. I have two. AFAIK it is the first of the series that will do TIC. The TIC specification is 100 pico-seconds. For reference the HP 5370A/

Re: [time-nuts] Frequency counter recommendation - Basic

> The other is what one can buy on the market that is > better than the HP 5328? > > The first step up IMHO is the HP 5335. I have two. > AFAIK it is the first of the series that will do TIC. The TIC > specification is 100 pico-seconds. > For reference the HP 5370A/B TIC spec is 10 pico-seconds.

[time-nuts] Frequency counter recommendation - Basic

List,   The opinions given have been fascinating.  However I see this discussion going in two directions.  One is making a counter.  This is fine.  Go for it if you have all the resources and time it will require.  The Achilles heel that I see to this project is being able to duplicate the mat

Re: [time-nuts] Frequency counter recommendation

I'd like to input a few suggestions regarding layout and construction, namely, the PCB material and the form factor. I suggest that any circuitry processing signals over about 2-3 GHz be constructed on a PTFE or PTFE/ceramic PCB material, such as Rogers RT/Duroid (www.rogerscorp.com/). Arlon (a

Re: [time-nuts] Frequency counter recommendation

Bob Bownes wrote: Comments inline. On Mon, Dec 20, 2010 at 11:17 PM, Chris Albertson wrote: I looked. I think we should keep the design goals modest for a first revision. Shoot for a spec that can be hand built on perf board. So I'd relax those numbers by a factor of 1000. T

Re: [time-nuts] Frequency counter recommendation

Comments inline. On Mon, Dec 20, 2010 at 11:17 PM, Chris Albertson wrote: > I looked. I think we should keep the design goals modest for a first > revision. Shoot for a spec that can be hand built on perf board. So > I'd relax those numbers by a factor of 1000. The top frequency is in > Mh

Re: [time-nuts] Frequency counter recommendation

I looked. I think we should keep the design goals modest for a first revision. Shoot for a spec that can be hand built on perf board. So I'd relax those numbers by a factor of 1000. The top frequency is in Mhz, not Ghz and the time resolution closer to ns than ps. It's good to have a cheap op

Re: [time-nuts] Frequency counter recommendation

Lol. Ok. You're added to the group. I've started a topic on form factor. Bob On Mon, Dec 20, 2010 at 10:45 PM, Don Latham wrote: > Hi benevolent dictator. Please not the @#$%^& Eurocard. As you say, the > connectors and backplane cost more than the stuff on the cards (except > maybe the stuf

Re: [time-nuts] Frequency counter recommendation

Hi benevolent dictator. Please not the @#$%^& Eurocard. As you say, the connectors and backplane cost more than the stuff on the cards (except maybe the stuff from Hittite :-). Rather a stack of cards with .1 in. spacing .025 pins? That way, we can put the stack in any housing we want. If a suitabl

Re: [time-nuts] Frequency counter recommendation

Well said Chris. Take a look at the initial spec in the OpenCounter Gogle group and tell me what you think with respect to your item #1. I think the core counter is going to be the really difficult part of the module list. Item #2 is going to be a tough one methinks. I love Eurocard, but, as you s

Re: [time-nuts] Frequency counter recommendation

* *Interesting. There are some Hittite D type flip flips that spec out at 13Ghz and 18-22ps rise/fall times with 'deterministic jitter' of 2ps, and a T type that tops out @26Ghz. Not cheap I'm sure, but we shall see. I've posted a preliminary specification on the Open Counter google group. The goa

Re: [time-nuts] Frequency counter recommendation

On Mon, Dec 20, 2010 at 2:51 PM, Dave M wrote: > .. never got off the launchpad because of their inability to come to > consensus on a set of features. I had to conclude that too many cooks > spoiled the broth. Everyone that had input to the project was unwilling to > yield on anyone else's ideas.

Re: [time-nuts] Frequency counter recommendation

Sent: Mon, December 20, 2010 2:51:37 PM Subject: Re: [time-nuts] Frequency counter recommendation > I don't believe anybody is speaking to perceived value as much as > historical market cost at various times over the years.  I paid $200 > for my 5370B last year and it's in sup

Re: [time-nuts] Frequency counter recommendation

I don't believe anybody is speaking to perceived value as much as historical market cost at various times over the years. I paid $200 for my 5370B last year and it's in superb condition and well inside factory specs. There is no way I'd sell it though. My guess is Bob C and most of us perceive

Re: [time-nuts] Frequency counter recommendation

e quite a few people interested over here. Paul Reeves G8GJA -Original Message- From: jimlux [mailto:jim...@earthlink.net] Sent: 19 December 2010 04:08 To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Frequency counter recommendation Bob Camp wrote:

Re: [time-nuts] Frequency counter recommendation

I'm shopping for a solution right now. I had several ideas both discussed on this thread: Using an old notebook and an ARM based appliance re-flashed to run Linux but neither would work well. So I'm buying this tiny new motherboard from Intel with an Atom CPU on it. Sells for $70 with the soldere

Re: [time-nuts] Frequency counter recommendation

> > From: "Chris Caudle" > The problem with USB-RS232 adapters is that there is no class compliant > device, because there is no USB class for RS232 emulators. Doesn't exist, > so every device you've ever seen or used is a custom USB device. The > drivers for the FTDI devices ship with modern var

Re: [time-nuts] Frequency counter recommendation

> > From: Mark Sims: > A much simpler solution is to dedicate a $20 "obsolete" laptop to the > Tbolt. I use a 200 MHz Compaq Armada with 1024x768 screen. I have also run > Heather on a 90 MHz Fujitsu Milan with a 640x480 passive matrix screen. > For bonus points, tap off the internal laptop CDRO

Re: [time-nuts] Frequency counter recommendation

On Sun, December 19, 2010 3:36 pm, Bob Camp wrote: > My bag full of useless adapters were indeed "class compliant" back in the > day. Not so any more under the new approach to signed drivers. The problem with USB-RS232 adapters is that there is no class compliant device, because there is no USB cl

Re: [time-nuts] Frequency counter recommendation

One more link that shows the teardown of a Chumby One: http://www.ifixit.com/Teardown/chumby-one-Teardown/1614/1 As I mentioned, the Insignia circuit board is slightly different. The overall configuration of the unit is very similar. The Insignia is actually easier to open than the Chumby. Joe Gr

Re: [time-nuts] Frequency counter recommendation

Mark, You might look at this hardware: http://www.bestbuy.com/site/Insignia%26%23153%3B+-+Infocast+3.5%22+Internet+Media+Display/1152881.p?skuId=1152881&ci_src=14110944&ci_sku=1152881&ref=06&cmp=RMX&loc=01&id=1218226456157 It is based on the Chumby One design and Best Buy has had it on sale for $

Re: [time-nuts] Frequency counter recommendation

Ho Ho Ho, Tis the season once again for giving and I wrote this up to give some suggestions to the discussion. The PICTIC II was a spin-off of a GPSDO front end designed specifically for low cost, low parts count, amateur construction, and 1ns resolution to equal the performance of a modern GPS re

[time-nuts] Frequency counter recommendation

A much simpler solution is to dedicate a $20 "obsolete" laptop to the Tbolt.  I use a 200 MHz Compaq Armada with 1024x768 screen.  I have also run Heather on a 90 MHz Fujitsu Milan with a 640x480 passive matrix screen.   For bonus points,  tap off the internal laptop CDROM power connections (an

Re: [time-nuts] Frequency counter recommendation

> > From: Chris Albertson > Yes. It can if done wrong. > > The "correct" way to use USB is to make your USB device "class > compliant" for some class. Then most OSes (and with recent releases > even MS Windows) will have built-in drivers for each class of USB > device. Never buy or design a USB

Re: [time-nuts] Frequency counter recommendation

On Sun, Dec 19, 2010 at 12:45 PM, Bob Camp wrote: > Hi > > My bag full of useless adapters were indeed "class compliant" back in the > day. Not so any more under the new approach to signed drivers. If they were "Class Compliant" they do not need drivers. = Chris Albertson Redondo Beach, Ca

Re: [time-nuts] Frequency counter recommendation

On Sun, Dec 19, 2010 at 12:45 PM, Bob Camp wrote: > Hi > > My bag full of useless adapters were indeed "class compliant" back in the > day. Not so any more under the new approach to signed drivers. > > Bob > > > On Dec 19, 2010, at 3:09 PM, Chris Albertson wrote: > >> Yes.  It can if done wrong.

Re: [time-nuts] Frequency counter recommendation

That's kinda my point about using rs232. Serial to USB, serial to Ethernet adaptors will be available for a good long while. Also why I like the idea of a standalone instrument that also has a pc interface of some sort. Or a slot for a pc interface of whatever source I want. So how does o

Re: [time-nuts] Frequency counter recommendation

Hi The gotcha with caps is that they don't block RF very well. Of course if you go high enough in frequency, not much can be blocked anyway. Opto isolated RS-232 is just a pair of cheap optos, a couple of diodes and a few resistors and caps. It costs next to nothing and it will work just fine

Re: [time-nuts] Frequency counter recommendation

Hi My bag full of useless adapters were indeed "class compliant" back in the day. Not so any more under the new approach to signed drivers. Bob On Dec 19, 2010, at 3:09 PM, Chris Albertson wrote: > Yes. It can if done wrong. > > The "correct" way to use USB is to make your USB device "clas

Re: [time-nuts] Frequency counter recommendation

Yes. It can if done wrong. The "correct" way to use USB is to make your USB device "class compliant" for some class. Then most OSes (and with recent releases even MS Windows) will have built-in drivers for each class of USB device. Never buy or design a USB device that requires the user to inst

Re: [time-nuts] Frequency counter recommendation

El 19/12/2010 16:35, jimlux escribió: I hate cards that plug into a PC. The PC bus respin cycle is much too short, and you have device drivers, etc. to worry about. At work, we use rack mounted PCs to control a bunch of test equipment. Since we're doing spacecraft stuff, the "design use l

Re: [time-nuts] Frequency counter recommendation

In message <4d0e3080.1060...@earthlink.net>, jimlux writes: >Bob Camp wrote: >There are some nice solutions, though, using USB directly, which has the >advantage of providing a few watts of power. Isolated DC/DC converters >are readily available. you might be able to do transformer isolation o

Re: [time-nuts] Frequency counter recommendation

Bob Camp wrote: Hi Which is why a simple / cheap opto isolated RS-232 connected to a USB dongle makes a lot of sense. Bob There are some nice solutions, though, using USB directly, which has the advantage of providing a few watts of power. Isolated DC/DC converters are readily available

Re: [time-nuts] Frequency counter recommendation

Hi USB ties you into the same silly PC driver two year life silly stuff. The bus has a lot of staying power, but keeping the stack up to date is a pain. Even for so called "standard" parts that interface to a "common" interface - neither one really turns out to be true. I have a big bucket full

Re: [time-nuts] Frequency counter recommendation

Gerhard Hoffmann wrote: Am 19.12.2010 05:52, schrieb Bob Camp: The real thing you would learn about is writing code that runs an FPGA. Yes. A good starting point would be a Xilinx SP605 kit. It's about the $750 for a decent 5370 and includes many points from Bobs option list. The other gotc

Re: [time-nuts] Frequency counter recommendation

Hi Which is why a simple / cheap opto isolated RS-232 connected to a USB dongle makes a lot of sense. Bob On Dec 19, 2010, at 3:57 AM, Poul-Henning Kamp wrote: > In message <28e8c13c-3227-4cd6-bbea-902f03c81...@gmail.com>, bownes writes: > > One of the big problems with "PC-instruments" is i

Re: [time-nuts] Frequency counter recommendation

Magnus Danielson wrote: On 12/19/2010 05:13 AM, Bob Camp wrote: Hi In the case of a $200 5370, you have to wait a while to find one. When you get it, you likely have to do some work to get it running. At the very least you will need to do a cal. My guess is that a counter project would be v

Re: [time-nuts] Frequency counter recommendation

El 19/12/2010 12:34, Magnus Danielson escribió: Need to look at it. But essentially, during normal operation common mode isolation isn't all that hard. The problem is that during failure mode can what should be a common mode voltage and current become diffrential mode, which jumps straight th

Re: [time-nuts] Frequency counter recommendation

On 12/19/2010 11:47 AM, Javier Herrero wrote: Hello El 19/12/2010 11:13, Magnus Danielson escribió: To achieve meaningful isolation, it should be optical. Transformer isolation has a few issues to get right... What about digital isolators, lile ISO7220, ADuM1200 and so? Need to look at i

Re: [time-nuts] Frequency counter recommendation

Am 19.12.2010 05:52, schrieb Bob Camp: The real thing you would learn about is writing code that runs an FPGA. Yes. A good starting point would be a Xilinx SP605 kit. It's about the $750 for a decent 5370 and includes many points from Bobs option list. The other gotcha here is that the featu

Re: [time-nuts] Frequency counter recommendation

Hello El 19/12/2010 11:13, Magnus Danielson escribió: To achieve meaningful isolation, it should be optical. Transformer isolation has a few issues to get right... What about digital isolators, lile ISO7220, ADuM1200 and so? Regards, Javier -- --

Re: [time-nuts] Frequency counter recommendation

On 12/19/2010 09:57 AM, Poul-Henning Kamp wrote: In message<28e8c13c-3227-4cd6-bbea-902f03c81...@gmail.com>, bownes writes: One of the big problems with "PC-instruments" is isolation: most of them havn't any. If you are going to design one such, remember to isolate the USB port galvanically fro

Re: [time-nuts] Frequency counter recommendation

In message <28e8c13c-3227-4cd6-bbea-902f03c81...@gmail.com>, bownes writes: One of the big problems with "PC-instruments" is isolation: most of them havn't any. If you are going to design one such, remember to isolate the USB port galvanically from the actual instrument... -- Poul-Henning Kamp

Re: [time-nuts] Frequency counter recommendation

On 12/19/2010 05:13 AM, Bob Camp wrote: Hi In the case of a $200 5370, you have to wait a while to find one. When you get it, you likely have to do some work to get it running. At the very least you will need to do a cal. My guess is that a counter project would be very similar. There is an o

Re: [time-nuts] Frequency counter recommendation

For me, at least, the purpose is twofold, to learn, and to get a better instrument. The idea of being able to discriminate between two inputs a few ps apart is fascinating and something I'd like to learn how it is done. The VNA is a good comparison. I have a nice scalar nw but would like a VNA.

Re: [time-nuts] Frequency counter recommendation

My original thought in starting all this off was more or less prompted by the PICTIC2 and the Signalhound (q.v.). All control and calculating functions are done in the PC. There are NO controls or readouts of any kind on the device. So, the basics are a front end, with start/stop, a scaled interval

Re: [time-nuts] Frequency counter recommendation

Hi The real thing you would learn about is writing code that runs an FPGA. The other gotcha here is that the feature list can get pretty large: 1) WiFi interface 2) Bluetooth interface 3) USB 2.0 interface 4) RS-232 interface 5) HPIB emulation of an HP box 6)Ethernet interface - combined wi

Re: [time-nuts] Frequency counter recommendation

Hi Which then gets us to the question of just how many people are interested in a $750 counter that basically does what a 5370B does? It wouldn't have an LED display, but it also would not have 20 pounds of manuals to back it up. You'd likely go with something other than HPIB, but in the end it

Re: [time-nuts] Frequency counter recommendation

It all depends on the goal. Is it to have a working instrument or to learn how they work and maybe to push the state of the art ahead a little One might ask the same question about ham radio: "Why bother with all that work? If you want to talk to some one just buy a cell phone and be done with

Re: [time-nuts] Frequency counter recommendation

Bob Camp wrote: Hi In the case of a $200 5370, you have to wait a while to find one. When you get it, you likely have to do some work to get it running. At the very least you will need to do a cal. My guess is that a counter project would be very similar. There is an order and build process

Re: [time-nuts] Frequency counter recommendation

Hi In the case of a $200 5370, you have to wait a while to find one. When you get it, you likely have to do some work to get it running. At the very least you will need to do a cal. My guess is that a counter project would be very similar. There is an order and build process that happens ever

Re: [time-nuts] Frequency counter recommendation

Bob Camp wrote: Hi If you are going to do a full boat implementation and work out all the isolation issues and packaging, the question becomes: Will it be better bang for the buck than a ~ $200 HP 5370? Isn't that the classic New vs Used discussion, though? Those 5370s won't be available

Re: [time-nuts] Frequency counter recommendation

Hi If you are going to do a full boat implementation and work out all the isolation issues and packaging, the question becomes: Will it be better bang for the buck than a ~ $200 HP 5370? Bob On Dec 17, 2010, at 9:29 AM, jimlux wrote: > Interesting discussion.. > comments interspersed > > Ch

Re: [time-nuts] Frequency counter recommendation

boun...@febo.com] On > Behalf Of Bob Camp > Sent: 16 December 2010 19:20 > To: 'Discussion of precise time and frequency measurement' > Subject: Re: [time-nuts] Frequency counter recommendation > > Hi > > Yes indeed, been there done that. Not very hard at all

Re: [time-nuts] Frequency counter recommendation

Interesting discussion.. comments interspersed Chris Albertson wrote: Jumping ahead to design. No one wants a serial RS232 interface. they don't even make computers with RS232 ports much any more. Those guys that designed equipment that forced people to load costom USB drivers just did not t

Re: [time-nuts] Frequency counter recommendation

Camp Sent: 16 December 2010 19:20 To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Frequency counter recommendation Hi Yes indeed, been there done that. Not very hard at all. All you need is the six layer pc board (can be bought), the FPGA (Digikey has

Re: [time-nuts] Frequency counter recommendation

f Bob Camp Sent: 16 December 2010 19:20 To: 'Discussion of precise time and frequency measurement' Subject: Re: [time-nuts] Frequency counter recommendation Hi Yes indeed, been there done that. Not very hard at all. All you need is the six layer pc board (can be bought), the FPGA (Digike

Re: [time-nuts] Frequency counter recommendation

off the shelf chassis type. >>> >>> So,... the first step is to list out the cards and write specs for >>> each and design it so it is an expandable system    A Wiki works best >>> for this, not an email list. >>> >>> On Thu, Dec 16, 2010 at 5:15

Re: [time-nuts] Frequency counter recommendation

starter.com/projects/bushing/openvizsla-open-source-usb-protocol-analyzer >>> >>> Alan >>> >>> On 12/16/2010 12:55 PM, Bob Camp wrote: >>>> >>>> Hi >>>> >>>> If you look in detail at the ups and downs of the TAPR SD

Re: [time-nuts] Frequency counter recommendation

at 11:20 AM, Bob Camp  wrote: >>>> >>>> Hi >>>> >>>> Yes indeed, been there done that. Not very hard at all. >>>> >>>> All you need is the six layer pc board (can be bought), the FPGA (Digikey >>>> has them), a few of the

Re: [time-nuts] Frequency counter recommendation

nse. >> >> Bob >> >> -Original Message- >> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On >> Behalf Of Chris Albertson >> Sent: Thursday, December 16, 2010 3:36 PM >> To: Discussion of precise time and frequency measur

Re: [time-nuts] Frequency counter recommendation

Sent: Thursday, December 16, 2010 3:36 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Frequency counter recommendation Here is an example of doing something like this as a open source design by a group of HAMs http://www.tapr.org/kits_janus.html This is a software de

Re: [time-nuts] Frequency counter recommendation

n...@febo.com] On > Behalf Of Chris Albertson > Sent: Thursday, December 16, 2010 3:36 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Frequency counter recommendation > > Here is an example of doing something like this as a open source > d

Re: [time-nuts] Frequency counter recommendation

-boun...@febo.com] On Behalf Of Chris Albertson Sent: Thursday, December 16, 2010 3:36 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Frequency counter recommendation Here is an example of doing something like this as a open source design by a group of HAMs

Re: [time-nuts] Frequency counter recommendation

---Original Message- > > From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On > > Behalf Of Don Latham > > Sent: Wednesday, December 15, 2010 3:48 PM > > To: Discussion of precise time and frequency measurement > > Subject: Re: [time-nuts] Frequen

Re: [time-nuts] Frequency counter recommendation

esday, December 15, 2010 3:48 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Frequency counter recommendation > > OK, time-nuts, here's the gauntlet. can't "we" generate a design for a > PC-based FPGA or chip setup that would

Re: [time-nuts] Frequency counter recommendation

Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Frequency counter recommendation Hi Bob, If a 256 ball package is the solution for these FPGA, I would prefer it in 256 QFP-package version-if exists. These will be solderable for the good "home-specialists", bat

Re: [time-nuts] Frequency counter recommendation

Bob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of K. Szeker Sent: Thursday, December 16, 2010 3:16 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Frequency counter recommendation Hi Bob, Clear, i

Re: [time-nuts] Frequency counter recommendation

popular. > > Bob > > -Original Message- > From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On > Behalf Of K. Szeker > Sent: Thursday, December 16, 2010 2:36 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts]

Re: [time-nuts] Frequency counter recommendation

popular. Bob -Original Message- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of K. Szeker Sent: Thursday, December 16, 2010 2:36 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Frequency counter recommendation Hi Bob,

Re: [time-nuts] Frequency counter recommendation

... Bob L. From: Bob Camp To: Discussion of precise time and frequency measurement Sent: Thu, December 16, 2010 2:20:12 PM Subject: Re: [time-nuts] Frequency counter recommendation Hi Yes indeed, been there done that. Not very hard at all. All you need is the six laye

Re: [time-nuts] Frequency counter recommendation

.com] On > Behalf Of Don Latham > Sent: Wednesday, December 15, 2010 3:48 PM > To: Discussion of precise time and frequency measurement > Subject: Re: [time-nuts] Frequency counter recommendation > > OK, time-nuts, here's the gauntlet. can't "we" generate a des

Re: [time-nuts] Frequency counter recommendation

: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] Frequency counter recommendation OK, time-nuts, here's the gauntlet. can't "we" generate a design for a PC-based FPGA or chip setup that would be generally useful as a counter? We've seen t

Re: [time-nuts] Frequency counter recommendation

Dave: the Prologix interface can be used as an rs232 device. In that way, a robot basic program can be written to control GPIB devices. I like Robot Basic because it is has no connections to .net or any of the other microsoft stuff, AFIK uses no Registry either.. I put the whole package in a folder

Re: [time-nuts] Frequency counter recommendation

I asked the same question of this list a number of years back, took a few different routes and ended up with precisely what has been suggested here: HP 5370B Prologix GPIB-USB And an HP 3325B function generator to round it all out nicely. Also, if ever asked by the financial controller *why* you

Re: [time-nuts] Frequency counter recommendation

I've seen several posts that mention the 5370 counter. Certainly looks like a capable instrument. I'll be on the lookout for one that is in reasonably good condition and WORKS. I downloaded the NIST pub that you mentioned, and with the cold days and colder nights, I'll have lots of time to p

Re: [time-nuts] Frequency counter recommendation

t: Re: [time-nuts] Frequency counter recommendation Hi Dave, On 12/15/2010 08:55 PM, Dave M wrote: > I'm a retired electronics tech and computer programmer.  I have a pretty > decently equipped shop for almost all of my projects and experiments. > However, my time and frequency equipme

Re: [time-nuts] Frequency counter recommendation

Hi Dave, On 12/15/2010 08:55 PM, Dave M wrote: I'm a retired electronics tech and computer programmer. I have a pretty decently equipped shop for almost all of my projects and experiments. However, my time and frequency equipment is a bit long in the tooth. I have a couple old HP 5328A counter

Re: [time-nuts] Frequency counter recommendation

Hello Dave, Others will have better suggestions for the time interval measurement equipment. My suggestion is to consider the Prologix GPIB to USB adapter for ~150$ brand new stock. I wasted some time with a NI controller and an older HP adapter before I got the Prologix. I never looked back.

Re: [time-nuts] Frequency counter recommendation

the counter question goes, I would recommend you consider an HP > 5370B. > > Joe > > -Original Message- > From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on > Behalf Of Dave M > Sent: Wednesday, December 15, 2010 1:55 PM > To: TimeNuts > Subj

Re: [time-nuts] Frequency counter recommendation

, December 15, 2010 1:55 PM To: TimeNuts Subject: [time-nuts] Frequency counter recommendation I'm a retired electronics tech and computer programmer. I have a pretty decently equipped shop for almost all of my projects and experiments. However, my time and frequency equipment is a bit long in the

[time-nuts] Frequency counter recommendation

I'm a retired electronics tech and computer programmer. I have a pretty decently equipped shop for almost all of my projects and experiments. However, my time and frequency equipment is a bit long in the tooth. I have a couple old HP 5328A counters (commercial version; not the military versio