User:Tomlinson555/sandbox

Mission
RAE-B was placed in lunar orbit to record radio measurements from 25kHz to 13.MHz of the Milky Way galaxy. RAE-B was placed in to lunar orbit so that radio waves from earth would not be as big of a interference as Explorer 38 had discovered.

Data
Data were returned to the earth via either a low power UHF/(400 MHz) transmitter, in real time, or stored in an onboard tape recorder and transmitted to earth via a high power UHF transmitter (400 MHz). Two tape recorders provided backup storage.

Data collected on explorer 49 was recorded on one of the three 16-mm Micro film (tape recorder) and then was returned to earth through a high power UHF/(400 MHz) transmitter. Also data could be transmitted directly to earth through a low power UHF/(400 MHz) transmitter.

Data from Step the frequency radio meters experiment

Ryle-Vonberg 24 hour plots: this is a summary of the data collected by Ryle-Vonberg receivers (RV-1 and RV-2). It was plotted on a graph that had one of the nine frequencies which antenna it was taken from and the relative antenna temperature.

Experiments
The principal investigator for all the experiments was Dr. Robert G. Stone.

1.Step Frequency Radiometers- Explorer 49 was equipped with two Ryle-Vonberg (RV) receivers one on the upper V-antenna and the other on the lower V-antenna.The radiometers were designed to measure at nine frequencies from .45- 9.18 MHz.

2.Rapid-Burst Receivers- Explorer 49 had three rapid burst receivers, one on the upper V-antenna one the lower V-antenna and the third on the middle dipole antenna. The Burst Receivers were composed of a pair of IF Amplifiers and detectors one of the pair was used for back up. They detected on 32-channel's between 25 kHz to 13.1 MHz.

3.Impedance Probe- This was to test the engineering on the upper V-antenna.

Flaws
The third burst receiver on the dipole antenna failed after the first week and no data resulted from the receiver.

Mechanical flaw in the lower V-antenna which caused the leg to only deploy to a length of 183m instead of 229m, it was corrected in November 1974 and extended to the full length of 229m.