The Goddard Space Flight Center produced a plastic ‘cheat sheet’ of Apollo Unified S-Band modes – these were used at the Ops Console at Honeysuckle.

John Saxon writes, “The card was produced specially for the J missions.” It is dated May 1971.

 

The USB modes “cheat sheets” are a little larger than a credit card. This set preserved by Hamish Lindsay. Scans by Colin Mackellar.

USB modes – page 1

USB modes – page 2

USB modes – page 3

 

John writes, “This is more or less the info on the GSFC cheat sheets but (in my opinion) a more readable form. The diagrams were drawn by Neil Sandford and posted in the HOD (Honeysuckle Ops Directives).”

Uplink and Downlink Signal Spectra

Downlink Signal Spectra

 

During Apollo 15 EVA 3, Neil Sandford took these Polaroid photos of the spectra of various configurations – they give a hint of the complexity of the USB downlink.

LM PLSS – Honeysuckle

LCRU Downlink PLSS – Honeysuckle

LCRU Downlink PLSS – incoming from Parkes