This series began with Memo 100. Earlier numbers were reserved for reports of merit written prior to the series start.

This site is deprecated and new memos will be posted here: http://library.nrao.edu/edtn.shtml

96 Ladder Analysis Program -- Addendum, R. Norrod, 1/14/82 R. Norrod 05-28-81
97 Receiver Noise Temperature Measurement and Calibration Programs J. Coe 08-11-81
98 Noise Measurements on Refurbished 18 cm Receiver R. Norrod 09-10-81
99 Q-Band Maser Status R. Norrod 02-23-81
100 Loss of Plated Stainless Steel Wave-guide at 100 GHz C. Coates 01-22-79
101 Comparison of Three Liquid Nitrogen Standards S. Weinreb 09-11-81
102 Optimum Parameters of SIS Junctions for Mixer Applications L. D'Addario 10-16-81
103 Microcomputer Time Trials R. Fisher 12-24-81
104 Cryogenic Wire Description S. Weinreb 01-06-82
105 Digital Continuum Receiver Hardware Modification D. Schiebel 01-06-82
106 Measurements of Receiver Temperature and Calibration for 140-ft Cassegrain Box C. Brockway 01-21-82
107 Clipper Bandwidth Requirements R. Mauzy 03-19-82
108 Intermodulation RFI in Receiver Systems W. Brundage 03-31-82
109 Block Diagram of HP 9825 and 9862 Plotter J. Coe 04-08-82
110 Tests of a 432 MHz GASFET Amplifier S. Weinreb, R. Harris 06-28-82
111 Calibration of HP 346B Noise Sources at 1.3 and 1.7 GHz S. Weinreb 07-02-82
112 Vane Type Polarization Converter C. Brockway 07-28-82
113 Using Apple II for Graphics Output from VAX FARANT S. Keller 08-03-82
114 Revised VAX FARANT SPLOT Routine -- Apple II R. Norrod 09-27-82
115 Use of BAX-ll FARANT Microwave Design Program for Green Bank R. Norrod 09-27-82
116 Lathe Table for APPLESOFT Program R. Norrod 03-16-83
117 Reflectors for 140-ft Polarization Splitter R. Fisher 04-28-83
118 Leak Tests of Various Polymers R. Norrod 10-28-83
119 Measurements of Atmospheric Attenuation R. Howard 01-11-83
120 Flash ADC Aperture Times Temperature Coefficient R. Lacasse 02-02-84
121 Program for Computing Focal Plane Field Distribution from Far Field Antenna Pattern R. Fisher 07-26-84
122 Ellipsoidal Reflector for the C-Band Feeds on the 140-ft Telescope (with Polarization Splitter) S. Srikanth 08-02-84
123 JPL Physical Optics Program on the MASSCOMP MC500 Computer at Green Bank S. Srikanth 08-17-84
124 Farant 3.0 on the HP9816 Computer J. Granlund 11-06-84
125 Eccofoam as a Dewar Waveguide Vacuum Window R. Bradley, R. Norrod 12-20-84
126 140-ft Cassegrain Baselines C. Brockway 12-28-84
127 Microstrip Impedance Calculations J. Coe 01-10-85
128 300-1000 MHz Receiver Feeds J. Coe, W. Shank 01-22-85
129 Temperature Effects on Noise Sources T. Dunbrack 02-22-85
130 Accuracy Measurements on the Weinschel Model 3200-1 Attenuator A. Keckler 03-20-85
131 Moisture Absorption by Eccofoam Dielectric Material: Addendum to EDTN 125 R. Bradley 04-30-85
132 SPICE: A Generalized Circuit Simulation rogram Now Running on the GB Lab Masscomp R. Bradley 06-20-85
133 A Receiver Test Program using the Digital Continuum Receiver Date J. Coe 12-02-85
134 Small-Aperture, Scalar Horn as a Feed for the 7-Feed, 6-cm Receiver on the 300-foot Telescope S. Srikanth 01-22-86
135 Vibration Signature CTI Model 22 Cryogenic Refrigerators S. Weinreb 02-12-86
136 Correlation Function to Power Spectrum Transformations S. Weinreb 03-04-86
137 Declination Corrections for the 300-ft Telescope J. Condon 12-10-86
138 Declination Pointing of the 300-ft Telescope H. Payne 12-10-86
139 More on Declination Pointing of the 300-foot Telescope H. Payne 03-04-87
140 Array Feed Receiver Status J. Coe 03-12-87
141 Whiskerless Diode Burnout Test D. Garfield (UVA) 06-01-87
142 7-Feed 6-cm Receiver Noise Temperature Measurements made at the 140-ft Scope G. Behrens 07-06-87
143 AutoLISP Routine "pltfun" J. Coe 09-16-87
144 V F Parameters for Continuum Back Ends J. Lamb 04-05-88
145 Farant 5.0 on the HP-320 and HP-9816 Computers J. Granlund 05-05-88
146 Cryogenic Tests of MMIC Amplifiers M. Balister, R. Harris 06-13-88
147 Evaluation of EDM for Small Waveguide Fabrication A. R. Kerr, J. W. Lamb, N. J. Bailey,
M. Crawford, N. Horner
148 Programs for Analysis of Wire Grid Beam-Splitters and the Folded Mach-Zehnder Diplexer A. R. Kerr 10-18-88
149 Interferometer Analog Optical Links J. Coe 01-20-89
150 Changes in FARANT J. Granlund 03-16-89
151 Low-Noise, 1.25 GHz, Cooled, HEMT Amplifier Changlong Xu 04-06-89
152 Optical Fiber at Green Bank R. B. Weimer 04-20-89
153 Receiver Monitor Control R. B. Weimer 04-24-89
154 140-ft Modcomp Control Computer Data Input R. B. Weimer 04-28-89
155 Program "SCATTER" for the Analysis of Dielectric Matching Layers N. Bailey, A. R. Kerr 09-18-89
156 Fabrication of Millimeter-Waveguide Short-Circuits using EDM A. R. Kerr, D. E. Boyd 07-05-89
157 HP 8510 Network Analyzer Data Acquisition by FARANT J. D. Gallego 12-20-89
158 Clock Information for AST 286 Computers R. B. Weimer 02-06-90
159 VLBA Monitor and Control Card Application Problems R. B. Weimer 03-19-90
160 Weather Monitor System D. R. Schiebel 06-07-90
161 Phase Jitter Measurements and Noise Floor in the SSB Downconverter S. D. White 08-28-90
162 Assembly of 200-290 GHz Frequency Triplers N. Bailey, A. R. Kerr 08-28-90
163 The Low Temperature Thermal Resistance of High Purity Copper and Bolted Copper Joints A. R. Kerr 08-30-91
164 Comments on Eul and Schiek, 1991 J. Granlund 09-18-91
165 Strength Measurements on Crystalline and Fused Quartz Wafers N. Horner, F. Johnson, A. R. Kerr 04-30-92
166 Elimination of Electrical Ground Loops Caused by Helium Supply Lines in Cryogenic Receiver Systems A. R. Kerr, N. Horner, S.-K. Pan 11-09-92
167 Transferring Circuit Parameters from HFSS to MMICAD A.R. Kerr 11-13-92
168 Measurements of Optical Fiber Temperature Coefficient of Delay R. Norrod 01-25-93
169 Hewlett-Packard High Frequency Structure Simulator: Inconsistencies in Delta S and Convergence N. Bailey 06-04-93
170 Dielectric Constants And Matching Groove Parameters For Millimeter Wavelengths J. Lamb 06-02-93
171 690 GHz Tipping Radiometer: A Design Survey R. Bradley, S. K. Pan 08-28-95
172 Notes on Right-Angle-Mitre Bends for Standard Rectangular Waveguide E. Wollack 09-20-95
173 The NRAO Type-2B 1-2 GHz SIS Bias-T A. R. Kerr, D. Boyd 02-15-96
174 The NRAO Type-50A 4-6 GHz SIS Bias-T A. R. Kerr, D. Boyd 07-11-95
175 A Dual Axis Control Servo System for Feed Positioning K. S. Saini, G. Behrens 03-27-96
176 TCHEBX: Homogenous Sepped Waveguide Transformers E. Wollack 11-11-96
177 Semi-rigid Coaxial Cables S. White, M. Stennes 06-21-96
178 140-ft. Telescope Coaxial Cable Tests G. Behrens, R. Hall, G. Liptak, M. Mckinnon 07-26-96
179 Ground Loops in SIS Biax Circuits A. R. Kerr 03-06-97
180 How to Obtain Plotted Output Now That Pen Plotters are Obsolete N. Bailey 11-10-97
181 On the Compensation of E-Plane Bifrucations in Rectangular Waveguide E. Wollack 10-20-97
182 Design of a Near-Optimum Waveguide Taper Transition W. Grammer 01-14-98
183 Instruction Manual, NRAO Standard Receiver S. Weinreb, R. Mauzy 08-01-67
184 FTS Measurement of Some Window Materials D. Koller, G. Ediss, J. Hesler, C. Cunningham 08-31-99
185 S/X-band Feed Horn Properties at 2025 to 2120 MHz and S-band Feed System Tuning Procedures G. Behrens, G. Anderson, G. Watts, G. Langston 11-15-00
186 A "Clean" 8-bit ADC and Data Acquisition Card D. Anish Roshi 07-24-01
187 "Single-Step Right -Angle E-Plane Bend Geometry E. Wollack 12-07-95
188 Frequency Selective Surface (Dichroic) for use with the 211-275
GHz System
G. A. Ediss, J. Effland 11-14-01
189 Stability Analysis of SIS Mixer Bias Supply with 1K Ohm Isolation Resistors J. Effland 11-29-01
190 Calculations of Magnetic Circuits for SIS Mixers G. A. Ediss 01-23-02
191 Simple-Step Circular-to-square Mode Transducer E. Wollack 06-09-96
192 Recommendations for Flat and Anti-Cocking Waveguide Flanges A. R. Kerr, L. Kozul and A. A. Marshall 01-06-03
193 Cancellation of TV Interference D. Anish Roshi 12-27-02
194 Fabrication of Small Metal Parts by Electroforming Through a Photomask A. R. Kerr, N. Horner, and V. Summers 01-21-03
195 IPG Continuum Data Collection T. Weadon 08-29-03
196 Sideband Calibration of Single-Output Sideband-Separating SIS Receivers A. R. Kerr 01-06-04
197 Solders and Fluxes G. A. Ediss, M. Metcalfe, N. Peereboom and B. Simon 03-10-04
198 Mixer-Preamp Noise A. R. Kerr 06-18-04
199 Effects of Misalignment in a Split-Block Waveguide to Suspended-Stripline Transducer A. R. Kerr 12-08-04
200 Millimeter-Wave Feed Measurements Using the Green Bank Indoor Antenna Range G. Anderson 09-19-05
201 Initial Evaluation of Haas Super Mini Mill S/N 40150 A. R. Kerr, A. Marshall, M. Meeks, D. Parker, J. Shelton 09-28-05
202 Further Measurements on the Haas Super Mini Mill A. R. Kerr, A. Marshall, M. Meek, D. Parker, J. Shelton, R.Lacasse 12-07-05
203 Typical Heat Loads in a Cryogenic Receiver Dewar and a Discussion of the Refrigerator Principles of Operation J. R. Fisher 04-01-1979
204 Measurements of Copper Heat Straps Near 4 K With and Without Apiezon-N Grease A. R. Kerr and R. Groves 10-02-2006
205 Cryogenic (4K) Measurements of Some Resistors and Capacitors A. R. Kerr and M. Lambeth 03-05-2007
206 Measurement of Microwave Absorbing Materials at Q and W bands Roger Norrod and Bob Simon 03-23-2007
207 Spectral Density of Modes in a Rectangular Metal Box A. R. Kerr 03-27-2007
208 Functional Description of PIC16F877A Functions and Interfaces to GBT RFI Monitor Station J. R. Fisher, Carla Beaudet 04-26-2005
209 Sensitivity Comparison of RFI Monitor Station and GBT L-Band Receiver J. R. Fisher, Carla Beaudet 08-24-2007
210 Measurements of 2320-2345 MHz Bandstop Filters Fabricated using a High-Temperature Superconductor R. Norrod, K. Ward, M. Lancaster, Srikanta Pal 05-08-2008
211 Effects of Misalignment of Square Waveguide Joints A. R. Kerr 03-12-2009
212 Round-Ended Waveguide Short-Circuits A. R. Kerr 05-29-2009
213 Word-Boundary Detection in a Serialized, Gaussian-Distributed, White-Noise Data Stream Matt Morgan, Rick Fisher 10-13-2009
214 Cryogenic Measurements of Surface Mount Multi-layer Ceramic Chip Capacitors Roger D. Norrod 11-10-2009
215 Mismatch Caused by Waveguide Tolerances, Corner Radii,and Flange Misalignment A. R. Kerr 12-07-2009, Rev. 01-11-2010
216 Active Cascade Local Oscillator Distribution for Large Arrays Matthew A. Morgan 10-29-2010
217 Preliminary Measured Results of a Diagonal Quadruple-Ridged Ku-Band OMT Gordon Coutts 11-29-2010
218 Dual-Mode Propagation in Triangular and Triple-Ridged Waveguides Matthew A. Morgan 02-16-2011
219 Measurements of Automotive Radar Emissions Received by a Radio Astronomy Observatory Darrel Emerson, Robert Freund, Frank Gruson, Juergen Hildebrandt, and Alan Rogers 12-13-2011
220 Evaluation of the NRL LWA Active Balun Prototype Richard F. Bradley and Chaitali R. Parashare 04-09-2012