1) Radio frequency interference 
Requests for Information. Where an issuer requests an acquirer to supply details of a cardholder's specific transaction undertaken at a point-of-sale device.
Request for Information - in the context of OSNet, a method of promoting the new service and generating feedback from potential service users and partners.
RFI is a request for information
Request for Information. A preliminary step in the procurement process, where the client requests general information from suppliers about their organisation.
Radio Frequency Interference + Request for Information
Radio Frequency Interference.
Radio Frequency Interference. Radio Frequency InterferenceRadio-frequency interference
Request For Information
Radio Frequency Interference. Transmitted/emitted RFI affects other external equipment. Susceptibility measures the immunity of equipment from received RFI. See also EMC
Radio Frequency Interference
Request for Interchange
request for information
Radio Frequency Interference
This preliminary document contains general information about the capabilities provided by potential vendors or suppliers.
Radio frequency interference. 
This stands for “request for information” which is a formal question to the design team, client, or general contractor that will likely affect the contract scope, drawings, and/or specifications. The response to an RFI acts as a contract change and could result in a change order.
An RFI (request for information) is a document involved parties use to clarify drawings, plans, agreements, and specifications. The RFI clarifies information gaps in construction documents.