[time-nuts] FE-5680A dumb question...

EB4APL eb4apl at cembreros.jazztel.es
Thu Jan 5 01:04:43 UTC 2012


Chris,

I you look carefully there should be 1PPS on pin 6, about 1 us wide.  
You need to adjust your scope trigger and advance the brightness because 
of this extremely low duty cycle.  Maybe you'll not see the signal but 
your scope will trigger at 1 PPS.  Or you can connect a counter and see 
1 Hz.

Regards,
Ignacio, EB4APL



On 04/01/2012 7:40, Chris Albertson wrote:
> The manual is for a similar unit with the same part number.  On this unit
>
> (I was going to be sarcastic and say "Its the pin with the 10MHz sine wave
> on it" but here it the pinout.
> I get about 2V peak to peak when loaded with a 10X scope probe only
>
> 1 +15V
> 2 return for #1
> 3 lock.unlock
> 4 +5V
> 5 gnd
> 6 N/C (but I see a tiny ~60MHz sine-like wave
> 7 10MHZ output
> 8 rs232 Rx
> 9 rs232 Tx
>
> On Tue, Jan 3, 2012 at 5:58 PM, Brian, WA1ZMS<wa1zms at att.net>  wrote:
>
>> My E-bay FE-5680A finally arrived. (4weeks later)
>>
>>
>>
>> Of the pins on the DB-9 connector, which one is the RF output?
>>
>> The manual only talks about an SMA output.
>>
>>
>>
>> I know this has been talked about before, but I cannot find the thread.
>>
>>
>>
>> Thanks in advance&  sorry for bandwidth,
>>
>> -Brian, WA1ZMS
>>
>>
>>
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>



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