[Elecraft] K3 and time base synchronization - distribution amplifier use

[Jack Smith]

With the K3's option for external time base synchronization, there may 
be some interest in low cost distribution amplifiers.
If you have a high accuracy time base, such as a Rubidium standard, or 
GPS-disciplined crystal oscillator, you may wish to connect multiple 
devices to one 10 MHz output. Traditionally this is accomplished via a 
time base distribution amplifier, perhaps the most well known example 
being HP's 5087A.

A recent suggestion on the Agilent mailing list suggested using an 
inexpensive video distribution amplifier with separate Red/Green/Blue 
channels, to distribute timing signals. I've acquired an Extron 6 300MX 
video amplifier and it works well for this purpose. I've provided photos 
and frequency response measurements in today's update at 
http://www.cliftonlaboratories.com/Updates.htm.

Jack K8ZOA
www.cliftonlaboratories.com