This document supplements the 'official' DSN Terminology document to provide additional information and also quicker access to DSN terms often used in radio astronomy contexts.

Some of the terminology used in networking and computer communications are explained in a separate document.

Microwave band letter designators are also defined in another document.

APT Asia-Pacific Telescope
a consortium of Pacific rim radio observatories engaged in VLBI observations
BVR Block V Receiver
Standard DSN telemetry receiver: input typically two 300 MHz I.F.s, output two digital data streams. This will be replaced by the DTT in the NSP era.
CCT Central Communications Terminal (part of the GCF)
CSP Channelized Spectrum Processor
currently under development by Helmut Wilck's group, to replace the WBSA; also referred to inaccurately as the CSA
DAVOS
16K-channel, 20-MHz digital Fourier transform spectrometer at the Canberra Complex
DCC Downlink Channel Controller
Part of the DTT.
DLF DSN Logistics Facility
DMR Detailed Mission Requirements
DSCC Deep Space Communications Complex
DSP DSCC Spectrum Processing Subsystem
DSP-V DSCC Spectrum Processing Subsystem - VLBI Group Configuration
DTT Downlink Telemetry and Tracking Subsystem
Successor to the BVR in the NSP era.
EAC Equipment Activity Controller
A special LMC designed to support remote and unattended operations, as well as control of non-operations equipment, such as the WBSA and DAVOS.
ECO Engineering Change Order
ECR Engineering Change Request
FTS DSCC Frequency and Timing Subsystem
GCF Ground Communications Facility
LMC Link Monitor and Control
LNA low noise amplifier
MPSETH Mission Planning Set H
MRR Mission Requirements Request
A document which specifies the requirements that a mission (or other activity) has for NASA OSC communications capabilities.
NEU Network Encryption Unit
NOPE Network Operations Project Engineer
NSP Network Simplication Plan
Upgrade of the DSN controller subsystems

OEA Operations Engineering and Analysis
OSC NASA Office of Space Communications
OSS NASA Office of Space Science
PCG phase coherent generator
RASA Radio Astronomy and Special Activities
RCC Receiver Channel Controller
Part of the BVR which controls its operation.
RCP Receiver Channel Processor
Part of the BVR which controls a receiver channel. Typically there are two channels in a BVR.
SPC Signal Processing Center
at each DSCC: 10-Goldstone, 40-Canberra, 60-Madrid
SHEVE Southern Hemisphere VLBI Experiment
TMOD Telecommunications and Mission Operations Directorate
TSP TranSlater Plus
A DSN subsystem which translates CS and NMC comands from MON-2 protocol to older 891-131 protocol.
WBSA Wide Band Spectrum Analyzer
the 2-million channel, 40-MHz digital Fourier transform spectrometer at Goldstone
WWW WorldWideWeb
the world-wide hypertext system which includes this document

APT	Asia-Pacific Telescope a consortium of Pacific rim radio observatories engaged in VLBI observations
BVR	Block V Receiver Standard DSN telemetry receiver: input typically two 300 MHz I.F.s, output two digital data streams. This will be replaced by the DTT in the NSP era.
CCT	Central Communications Terminal (part of the GCF)
CSP	Channelized Spectrum Processor currently under development by Helmut Wilck's group, to replace the WBSA; also referred to inaccurately as the CSA
DAVOS	16K-channel, 20-MHz digital Fourier transform spectrometer at the Canberra Complex
DCC	Downlink Channel Controller Part of the DTT.
DLF	DSN Logistics Facility
DMR	Detailed Mission Requirements
DSCC	Deep Space Communications Complex
DSP	DSCC Spectrum Processing Subsystem
DSP-V	DSCC Spectrum Processing Subsystem - VLBI Group Configuration
DTT	Downlink Telemetry and Tracking Subsystem Successor to the BVR in the NSP era.
EAC	Equipment Activity Controller A special LMC designed to support remote and unattended operations, as well as control of non-operations equipment, such as the WBSA and DAVOS.
ECO	Engineering Change Order
ECR	Engineering Change Request
FTS	DSCC Frequency and Timing Subsystem
GCF	Ground Communications Facility
LMC	Link Monitor and Control
LNA	low noise amplifier
MPSETH	Mission Planning Set H
MRR	Mission Requirements Request A document which specifies the requirements that a mission (or other activity) has for NASA OSC communications capabilities.
NEU	Network Encryption Unit
NOPE	Network Operations Project Engineer
NSP	Network Simplication Plan Upgrade of the DSN controller subsystems
OEA	Operations Engineering and Analysis
OSC	NASA Office of Space Communications
OSS	NASA Office of Space Science
PCG	phase coherent generator
RASA	Radio Astronomy and Special Activities
RCC	Receiver Channel Controller Part of the BVR which controls its operation.
RCP	Receiver Channel Processor Part of the BVR which controls a receiver channel. Typically there are two channels in a BVR.
SPC	Signal Processing Center at each DSCC: 10-Goldstone, 40-Canberra, 60-Madrid
SHEVE	Southern Hemisphere VLBI Experiment
TMOD	Telecommunications and Mission Operations Directorate
TSP	TranSlater Plus A DSN subsystem which translates CS and NMC comands from MON-2 protocol to older 891-131 protocol.
WBSA	Wide Band Spectrum Analyzer the 2-million channel, 40-MHz digital Fourier transform spectrometer at Goldstone
WWW	WorldWideWeb the world-wide hypertext system which includes this document