SB4

1. Need two rf switches
2. each links matrix, 1 node, and 1 basestation
3. all are controlled by raspberry pi, named sb4-cm
4. Switch info
   1. Max RF input power 1w
   2. VDD 3.3v
   3. control voltage:
      1. Low 0-0.5v
      2. High 2.7-vdd
   4. Rf connectors SMA
   5. Control connector SMA
   6. pins for ground and vdd
5. Raspi info
   1. 3.3 and 5v available
   2. gpio is 3.3v
6. Software info
   1. TBD

WIMAX

1. Use captured packet streams to control basestation.
2. Write omf service to send these
3. preferred method, once working, is to reverse engineer the commands.

LTE

1. write omf service to control lte basestation parameters
2. amarisoft, openairlte, airspan?
3. primary openairlte
4. ​https://twiki.eurecom.fr/twiki/bin/view/OpenAirInterface/OpenAirDocumentation

Switch Matrix

1. need two non-blocking switch / attenuator matrix
2. Connect B210s through switch matrix
3. B210s have 2x tx, 2x rx
4. 4 ports per b210, 2 ports per node
5. compare pricing from DIY, minicircuits, jfw
6. ex, 4 b210s
7. set up two rails, 8 ports per rail, atten and delay between
8. need price per attenuator.