Re: [time-nuts] Different or defective FE-5680A?

2012-06-09 Thread Ed Palmer
A few years ago I bought an FE-5680A that had only a 1 PPS output - no 10 MHz. The part number is the same format as yours. It came on a Motorola circuit board (not cutoff). It is programmable over a wide frequency range (typically 100 Hz to 15-20 MHz), but you have to bring out the signal

Re: [time-nuts] Different or defective FE-5680A?

2012-06-09 Thread Chris Albertson
On Fri, Jun 8, 2012 at 11:22 PM, Ed Palmer ed_pal...@sasktel.net wrote: ... It is programmable over a wide frequency range (typically 100 Hz to 15-20 MHz), but you have to bring out the signal yourself,... Any idea WHY someone would design something like that? A programable frequency

Re: [time-nuts] Different or defective FE-5680A?

2012-06-09 Thread gary
A light bulb with a metal envelope could be used as a dummy load. ;-) On 6/9/2012 12:35 AM, Chris Albertson wrote: On Fri, Jun 8, 2012 at 11:22 PM, Ed Palmered_pal...@sasktel.net wrote: ... It is programmable over a wide frequency range (typically 100 Hz to 15-20 MHz), but you have to bring

Re: [time-nuts] Different or defective FE-5680A?

2012-06-09 Thread Javier Herrero
El 09/06/2012 09:35, Chris Albertson escribió: On Fri, Jun 8, 2012 at 11:22 PM, Ed Palmer ed_pal...@sasktel.net wrote: ... It is programmable over a wide frequency range (typically 100 Hz to 15-20 MHz), but you have to bring out the signal yourself,... Any idea WHY someone would design

Re: [time-nuts] Different or defective FE-5680A?

2012-06-09 Thread Rex
On 6/9/2012 12:35 AM, Chris Albertson wrote: Any idea WHY someone would design something like that? A programable frequency standard where the frequency does not come out of the box. What next and audio amplifier that only drives an internal dummy load? Light bulb with a metal envelope?

Re: [time-nuts] Different or defective FE-5680A?

2012-06-09 Thread Dave Brown
...@gmail.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Saturday, June 09, 2012 7:35 PM Subject: Re: [time-nuts] Different or defective FE-5680A? On Fri, Jun 8, 2012 at 11:22 PM, Ed Palmer ed_pal...@sasktel.net wrote: ... It is programmable over a wide

Re: [time-nuts] Different or defective FE-5680A?

2012-06-09 Thread Ed Palmer
Do I detect a hint of frustration, Chris? :-) I agree with Rex's comments that the most likely reason for this is a building block process of combining standard modules to meet a customer's requirements. Some years ago I came across a 10 GB hard drive that came from a family of drives that

[time-nuts] Different or defective FE-5680A?

2012-06-08 Thread Joseph Gray
Months ago, I ordered two FE-5680A units from nichgeek for my personal use. They work just fine. Recently, I ordered one for work from the same source. For the work unit, I ordered a small 15 VDC switcher and a 5 V DC-DC module from Jameco. Today, I wired it all up, using the same pinout as the

Re: [time-nuts] Different or defective FE-5680A?

2012-06-08 Thread Joseph Gray
Further information. I do get a Lock (low) indication on pin-3 and a PPS on pin-6. Nothing at all on pin-7. Joe Gray W5JG On Fri, Jun 8, 2012 at 1:41 PM, Joseph Gray jg...@zianet.com wrote: Months ago, I ordered two FE-5680A units from nichgeek for my personal use. They work just fine.

Re: [time-nuts] Different or defective FE-5680A?

2012-06-08 Thread Bob Camp
Hi There is a variant that comes from the factory with no 10 MHz output at all. Industrious people in far away places drill holes and wire up SMA connectors to give them a 10 MHz output. If yours is one of those, the mod may not have been 100% effective. Maybe a loose wire …. Bob On Jun 8,

Re: [time-nuts] Different or defective FE-5680A?

2012-06-08 Thread Joseph Gray
This one has no SMA and hasn't been modded in any way that I can tell. It came on a cutoff circuit board, like the others. Joe Gray W5JG On Fri, Jun 8, 2012 at 3:29 PM, Bob Camp li...@rtty.us wrote: Hi There is a variant that comes from the factory with no 10 MHz output at all. Industrious

Re: [time-nuts] Different or defective FE-5680A?

2012-06-08 Thread Bob Camp
HI I suspect it's the same part then. I doubt they were using two vastly different Rb's on the same card. Bob On Jun 8, 2012, at 5:34 PM, Joseph Gray wrote: This one has no SMA and hasn't been modded in any way that I can tell. It came on a cutoff circuit board, like the others. Joe Gray

Re: [time-nuts] Different or defective FE-5680A?

2012-06-08 Thread Joseph Gray
Considering that I get a Lock and PPS but no 10 MHz, I have to assume that the unit is defective. Still waiting to see what nichegeek says. Joe Gray W5JG On Fri, Jun 8, 2012 at 6:36 PM, Bob Camp li...@rtty.us wrote: HI I suspect it's the same part then. I doubt they were using two vastly