Time & Frequency Rack
5110A Synthesizer Driver & 5100A Frequency Synthesizer
This is a synthesizer based on add, subtract, multiply NOT on PLL
methods.
It is big and heavy, but has very fast coherent switching and good
phase
noise. This model was used by BR
communications to develop their chirp sounder.
107BR Quartz Oscillator
Has a cylindrical oscillator assembly that looks like the one made by
Sultzer
Labs which was mentioned in the NRL book.....
117A VLF Comparator
A 60 kHz WWVB receiver with a phase comparison to an external 100 kHz
signal
both meter and paper strip.
113AR Frequency Divider and Clock
Takes a standard frequency input and divides it down to 1 PPS and
drives
an analog clock running on a 1 kHz motor, very noisy.
HP 120 Oscilloscope
used with 114BR to see time comparison
114BR Time Comparator
Used with a 120B Oscilloscope and a WWV HF receiver to compare the 1
PPS
output of a house standard with WWV. The thumb wheel switches
allow
adding a time delay to the house standard to trigger the scope to watch
the phase of WWV (and WWVH at the same time is it's there). inside
More
T&F equipment in another rack.
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