, 2012 3:49 PM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Ebay FE-5680A Rb: Connections and Features
Hi Roy
If your unit is generating an output as you report, without 5 volts to
pin
4, then I'd leave well alone.
On the current batches of cheaper units, that do require a 5 volt supply
Hi Roy
There's some very good stuff coming out of China via Ebay, but some does
come with confusion attached and it's probably best never to place too much
reliance on descriptions unless for items reasonably well known or with
relevant documentation available.
Just to add to the
On 1/9/2012 7:21 AM, gandal...@aol.com wrote:
Hi Roy
There's some very good stuff coming out of China via Ebay, but some does
come with confusion attached and it's probably best never to place too much
reliance on descriptions unless for items reasonably well known or with
relevant
In some cases they have been cough having some one bid up the price.
Bert Kehren
In a message dated 1/9/2012 11:05:01 A.M. Eastern Standard Time,
ed_pal...@sasktel.net writes:
On 1/9/2012 7:21 AM, gandal...@aol.com wrote:
Hi Roy
There's some very good stuff coming out of China via
not done this,
Can any member confirm these details.
Thanks.
Roy
--
From: ewkeh...@aol.com
Sent: Monday, December 12, 2011 12:25 AM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Ebay FE-5680A Rb: Connections and Features
Sorry I ever started
Hi Roy
If your unit is generating an output as you report, without 5 volts to pin
4, then I'd leave well alone.
On the current batches of cheaper units, that do require a 5 volt supply to
pin 4, they won't lock or provide an output without it.
Removing that 5 volt supply from a unit
] Ebay FE-5680A Rb: Connections and Features
Hi Roy
If your unit is generating an output as you report, without 5 volts to pin
4, then I'd leave well alone.
On the current batches of cheaper units, that do require a 5 volt supply to
pin 4, they won't lock or provide an output without
On Sun, Jan 8, 2012 at 7:49 AM, gandal...@aol.com wrote:
Hi Roy
If your unit is generating an output as you report, without 5 volts to pin
4, then I'd leave well alone.
On the current batches of cheaper units, that do require a 5 volt supply to
pin 4, they won't lock or provide an output
In a message dated 12/12/2011 04:00:17 GMT Standard Time, smit...@c-c-i.com
writes:
But you can query the unit and it will reply with the programmed offset
value.
If you get it wrong, it won't accept the programmed value. Just query it
with:
2d 04 00 29 to verify the offset value.
Realterm is a good one too:
http://realterm.sourceforge.net/
Cutecom works perfectly:
http://cutecom.sourceforge.net/
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Like many of you, I have seen these advertised on Ebay at good prices.
Also, like many of you, I am confused about the 'programmability' and
connections.
Many of them advertise these connections:-
PIN 1: INPUT +15V to +18V
PIN 2: GROUND
PIN 3: LOCK/UNLOCK (high = unlock)
PIN 4: INPUT +5V
PIN
alex mclaggan wrote:
Like many of you, I have seen these advertised on Ebay at good prices.
Also, like many of you, I am confused about the 'programmability' and
connections.
Many of them advertise these connections:-
PIN 1: INPUT +15V to +18V
PIN 2: GROUND
PIN 3: LOCK/UNLOCK (high = unlock)
Sorry I ever started this. In the past the FE5680's started out with a
50.255 MHz XTAL, some time in the 2002 2003 timeframe they switched to 60 MHz
using a DDS in the loop. All of these units can only be stepped in 7 E-13
steps limited by the resolution of the DDS. Having followed all the
In a message dated 11/12/2011 23:01:14 GMT Standard Time, smit...@c-c-i.com
writes:
Can anyone tell me if they ALL have the MAX level shifter/driver chip
fitted, even though it may not be connected to the connector ? I don't
want full programmability, just 10 MHz frequency correction.
gandal...@aol.com wrote:
snip
The FEI part number you are looking for is 217400-30352-1, it is often
clearly visible in the auction photos and can be seen in at least one of the
photos in the above link.
I'm sure all will do what you ask but the biggest problem I found was
actually
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