Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-15 Thread Magnus Danielson
On 04/15/2011 06:46 AM, bownes wrote: Thanks for the input folks. Based on what you all have said, my needs and the availability from a list member, I'm going to go with a 3325. I spent some time reading the manual this evening, which states that the 3325 will output up to 20,999,999.99 hz on

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-15 Thread paul swed
Please read the eproms. Mine are dead and they will absolutely die. The mosteks are a known failure. If you can get me the images I will attempt to integrate them into a modern 27128 or something and do that install. I have had to do that on a couple of other types of HP gear. I also put copies of

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-15 Thread Poul-Henning Kamp
In message BANLkTimq6dnmrOUYYc=xjyhb7ajas3g...@mail.gmail.com, paul swed writ es: Please read the eproms. Mine are dead and they will absolutely die. The mosteks are a known failure. If you can get me the images I will attempt to integrate them into a modern 27128 or something and do that

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-15 Thread Alan Melia
Message - From: Poul-Henning Kamp p...@phk.freebsd.dk To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Friday, April 15, 2011 1:49 PM Subject: Re: [time-nuts] Selecting a used HP sweep/frequency generator In message BANLkTimq6dnmrOUYYc=xjyhb7ajas3g

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-15 Thread Poul-Henning Kamp
In message 007901cbfb6e$0ffec400$4001a8c0@lark, Alan Melia writes: I have found on several occasions that you can read an failing EPROM in a prommer, that will not operate in its application. Sometimes it is possible to read. erase and reburn the same Eprom and get a working system again, but it

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-15 Thread Jim Lux
On 4/14/11 9:46 PM, bownes wrote: Thanks for the input folks. Based on what you all have said, my needs and the availability from a list member, I'm going to go with a 3325. I spent some time reading the manual this evening, which states that the 3325 will output up to 20,999,999.99 hz on the

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-15 Thread Charles P. Steinmetz
Jim wrote: Some oddities [of 3325A and 3325B's]: you can't get non-sine at as high a frequency on the front panel. I think square waves go up to 10 MHz or so.. The backpanel waveform is always a sine, but not necessarily a very high quality one. The triangle and ramp signals only go up to

[time-nuts] Selecting a used HP sweep/frequency generator

2011-04-14 Thread Bob Bownes
Thought I would consult the assembled wisdom here. I'm looking for an HP frequency generator with sweep capability in the 1-20Mhz range. I can live with 1-11, and would really love 1-55, but 1-20 seems to be the most common. Other instruments I already own cover 10 and up. The goal here is to

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-14 Thread paul swed
Bob I like the hp 3335. I also have the 8620. Can lock to external 10 Mhz ref. Not sure 10 milli htz references are that common. ;-) Very accurate in frequency and output level and can do sweeps but to be honest I have never used it that way. I have 3 of these and they have been rock solid for 10

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-14 Thread Poul-Henning Kamp
In message BANLkTi=upy4x2wumn9rpaw-vreu4yw3...@mail.gmail.com, Bob Bownes wri tes: The candidates at present are the 3324 and 3325. Don't overlook the 3336. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-14 Thread k6rtm
-- Message: 2 Date: Thu, 14 Apr 2011 11:38:58 -0400 From: Bob Bownes bow...@gmail.com To: Bob Bownes bow...@gmail.com Subject: [time-nuts] Selecting a used HP sweep/frequency generator Message-ID: BANLkTi=upy4x2wumn9rpaw-vreu4yw3...@mail.gmail.com Content-Type: text/plain; charset=ISO

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-14 Thread Pete Lancashire
...@gmail.com Subject: [time-nuts] Selecting a used HP sweep/frequency generator Message-ID: BANLkTi=upy4x2wumn9rpaw-vreu4yw3...@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1 Thought I would consult the assembled wisdom here. I'm looking for an HP frequency generator with sweep

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-14 Thread paul swed
ago; the current batch listed seem high. bob k6rtm -- Message: 2 Date: Thu, 14 Apr 2011 11:38:58 -0400 From: Bob Bownes bow...@gmail.com To: Bob Bownes bow...@gmail.com Subject: [time-nuts] Selecting a used HP sweep/frequency generator Message-ID

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-14 Thread Mike Feher
14, 2011 3:17 PM To: Discussion of precise time and frequency measurement Cc: k6...@comcast.net Subject: Re: [time-nuts] Selecting a used HP sweep/frequency generator And if you get a 3314A is can do something non of the others can do http://www.slack.com/hp3314a.html -pete On Thu, Apr 14, 2011

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-14 Thread paul swed
...@comcast.net Subject: Re: [time-nuts] Selecting a used HP sweep/frequency generator And if you get a 3314A is can do something non of the others can do http://www.slack.com/hp3314a.html -pete On Thu, Apr 14, 2011 at 11:47 AM, k6...@comcast.net wrote: Bob-- For that frequency range, I like

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-14 Thread Gary Chatters
On 04/14/2011 02:03 PM, Poul-Henning Kamp wrote: In messageBANLkTi=upy4x2wumn9rpaw-vreu4yw3...@mail.gmail.com, Bob Bownes wri tes: The candidates at present are the 3324 and 3325. Don't overlook the 3336. The 3336 would meet the OPs requirements. Frequency coverage 10Hz to 21MHz with

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-14 Thread Joseph Gray
The Easter egg plays fine on mine :-) It's rather lengthy, too. Mine is in need of cal. I just replaced a dead lithium in it and when I have time, I'm going to attempt the cal. I would love to be able to sync it to my GPSDO if anyone knows how to add this feature. Someone mentioned the EPROMS on

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-14 Thread bownes
Thanks for the input folks. Based on what you all have said, my needs and the availability from a list member, I'm going to go with a 3325. I spent some time reading the manual this evening, which states that the 3325 will output up to 20,999,999.99 hz on the front connector and up to about

Re: [time-nuts] Selecting a used HP sweep/frequency generator

2011-04-14 Thread Robert Darlington
The 3325 has an option for high voltage output from DC to 1MHz (up to 40 volts peak to peak at 40mA) with option 2 which can be handy sometimes. Also, I remember the 3325B has an upgraded attenuator stack to improve reliability as compared to the 3325A like I have.Can anybody chime in on