Options

The Hermes-Lite 2.0 includes additonal hardware options on the main PCB. This page describes how to use some of these options.

RF and Clock Connectors

There are various RF and clock connectors which may be installed depending on which (if any) external clock options are desired and which companion filter card is used. These are prefixed on the schematic with RF or CL. The expectation is that most builders will use edge mount SMA connectors.

CONSMA003.062 has a round base and may be used when a chassis end plate with a round hole.

CON-SMA-EDGE-S is a less expensive option but has a square base.

For the least expensive option, standard vertical SMA connectors, such as these from AliExpress, may be used in edge mount configuration. This is my preferred choice. Search AliExpress and Ebay have a wide variety of SMA connectors that can work, including round base and those designed specifically for edge mount.

Standard vertical SMA connectors may also be used in vertical orientation with some overhang by inserting 3 of the pins in the RF1,RF2,RF3,CL1 or CL2 footprints.

The edge mount footprints are also wide enough to accommodate BNC edge mount connectors like the 031-6009. If these are used, it is expected that only RF1 and RF2 (no RF3) and only CL1 or CL2 use this part as the BNC connectors are larger and there is not enough room for the connecting BNC cables.

The optional uFL connectors on the Hermes-Lite2 are designed to use part 73412-0112. Although a surface mount part, it may be hand soldered.