Time & Frequency Rack
5110A Synthesizer Driver & 5100A Frequency Synthesizer
This is a synthesizer based on add, subtract, multiply NOT on PLL
It is big and heavy, but has very fast coherent switching and good
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
Labs which was mentioned in the NRL book.....
117A VLF Comparator
A 60 kHz WWVB receiver with a phase comparison to an external 100
both meter and paper strip.
113AR Frequency Divider and Clock
Takes a standard frequency input and divides it down to 1 PPS and
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
output of a house standard with WWV. The thumb wheel switches
adding a time delay to the house standard to trigger the scope to
the phase of WWV (and WWVH at the same time is it's there). inside
T&F equipment in another rack.
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