[time-nuts] FW: RFTG-m-RB

[Didier Juges]

John,

The schematic of the 3586 Ext Reference input shows the 10 MHz going
directly into what looks like an ECL line receiver, so a square wave should
not bother it.

Here is a link to the page of the schematic:

http://www.ko4bb.com/cgi-bin/search.pl?search=8-H-5-6b.jpg

Didier 

> -----Original Message-----
> From: time-nuts-bounces at febo.com
> [mailto:time-nuts-bounces at febo.com] On Behalf Of John Ackermann N8UR
> Sent: Saturday, January 19, 2008 7:38 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] RFTG-m-RB
> 
> IIRC, the 3586 wants a sine wave reference, and gets fairly unhappy if 
> it doesn't see one.
> 
> Of course, another option is to stick a low pass filter following the 
> 10 MHz square wave; knock off the odd harmonics, and you'll have a 
> sine wave again.
> 
> John
> 

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