Please Find Below a List of Interfaces That We Are Aware Of

Please find below a list of interfaces that we are aware of. If others exist then please let us know sooner rather than later.

The electronics will be enclosed in a watertight aluminum box: Rose 01233311. This should be identical to those currently used to support some of the NRL 74 MHz receiver electronics, and the P-band receiver electronics in all antennas. The box should be mounted on the non-rotating central spine back-to-back with the P-band box.

The box has a MS3102R20-7P panel-mount connector to allow connection to the VLA 15 volt supply and the 9.6 Hz calibration signal. A MS3102R20-7S panel-mount connector on the box will be used to enable the 15 volt supply and calibration signal to be passed along to the P-band receiver electronics.

The box will also have two bulk-head feed-thru SMA connectors (female) to receive the crossed dipole 196 MHz signals.

To enable the P-band receivers to be used without modification to the current system we will provide 2 sets of N-type connectors (all female, one set for each polarization) that will allow the P-band outputs to couple through our box to the current VLA A-rack front- end system.

The 196 MHz antennas will connect to the Rose box containing the 196 MHz receivers via two flexible SMA cables that will pass through the two empty holes in the P-band antenna top balun plate (Drawing # D13155P02).

Mechanical support of the 196 MHz crossed-dipole will be provided by 4 PET (polyethylene-tera-phthalate) stand-offs that will clamp on the 4 to the 4-legs of the P- band antenna. In other words, we do not require any mechanical modification of the P- band antenna or support structure.

We will not use the VLA 115 volt connection. However, we will draw 1 amp of current from the VLA 15 volt supply.

Obviously someone needs to check existing cables to see what additional would be needed to connect the P-band system through our box.