The VLA/VLBA Interference Memoranda discuss the radio frequency
interference environment at the VLA and the VLBA sites.
For more information on VLA/VLBA Interference memoranda, and for
copies of memos not available on-line, contact the
NRAO Library
| No. | Title | Author(s) | Date |
FTP |
| 36 |
VLA Vertex Room Sourced RF Propagation Losses |
D. Mertely, C. Frentzel, B. Hayward |
07/01/08 |
PDF 149K |
| 35 |
VLA Site Generated RFI Control Plan |
D. Mertely, R. Perley |
12/18/06 |
PDF 370K |
| 34 |
Notes on RFI Emissions Levels
| R. Perley |
12/21/06 |
ps 158K |
| 33 |
A Frequency Independent Conical Logarithmic Spiral Antenna
for Observation of the Atacama Large Millimeter Array (ALMA)
Test Site |
S. Choudhary
R. Ridgeway
K. Shores |
09/22/03 |
DOC 4.0M |
| 32 |
EVLA Shielded Chamber Characterization, Radiated Emissions
Test Protocol, RF Shielding Characterisitcs of Buildings at the
VLA Site, and Radiated Emissions Test of MCB Ethernet Switchgear |
C. Patscheck |
12/05/2002 |
DOC 28M |
| 31 |
EVLA Shielded Chamber Power Offset Test Notes |
C. Patscheck
R. Ridgeway
|
10/31/2002 |
DOC 1.1M |
| 30 |
Computer Emissions Test Summary |
C. Patscheck |
09/16/2002 |
DOC 5.5M |
| 29 |
ATF Shielding Improvements |
C. Patscheck,
R. Ridgeway
| 08/2/2002 |
PDF 17K |
| 28 |
Shielding Characteristics of the Correlator Room, SLOB,
Pedestal and Vertex Rooms at the VLA Site (Superceded by
Interference Memo #32) |
C. Patscheck |
08/16/2002 |
PDF 23K |
| 27 |
Characteristics of Several Areas of the VLA Site
(Superceded by Interference Memo #32) |
C. Patscheck |
08/12/2002 |
| 26 |
Shielding Tests (Superceded by Interference
Memo #32) |
C. Patscheck |
08/05/2002 |
| 25 |
Far Sidelobes of 25m Radio Astronomy Antennas at 18 cm. |
V. Dhawan |
08/06/2002 |
PS 7.9M |
| 24 |
Tests of DW8 RFI Monitor |
C. Patscheck,
D. Mertely |
07/01/2002 |
| 23 |
EVLA Radio Frequency Interference Survey from 1-8 GHz, Analysis of EMS
System Noise Figure and VLA L-band Feed Horns
| E. Reynolds
| 01/02 |
| 22 |
Radiated RFI emission tests of the Motorola 162.025 MHz
currently used at the VLA and of the Kenwood 410.55/419.55 MHz
radios proposed as a replacement
| R. Armandariz
| 06/01 |
| 21 |
Digital Spectrometer Autocorrelator 1-18 GHz Down Converter,
EMS Automation, Rohn Tower Repair, and TV Action Updates |
N. Thomas |
07/01 |
PDF 407K |
| 20 |
KP-VLBA RFI at 610.75 MHz in Radio Astronomy Primary Allocated Bank
| D. Haenichen
| 07/01 |
| 19 |
Radio Frequency Interference Environmental Monitoring System |
A. Nguyen, T. Nguyen, K. Shores |
05/01 |
| 18 |
Radio Frequency Interference Satellite Tracking System |
L. Noice, R. Schmidt, E. Szpindor, H. Vahle |
05/01 |
|
| 17 |
NRAO Clock Recovery Test Fixture Senior Design Project |
F. Martinez, M. Nunez, S. Padilla |
05/01 |
|
| 16 |
Environmental Monitoring Station: Ailtech-Stoddart Receiver
Calibration and Integration of NM-67 and CCI-7 and Satellite
Tracking Station: Implementation |
R. Schmidt |
11/00 |
DOC 9.4M |
| 15 |
Performance Characterization of the 1-18 GHZ Ailtech-Stoddart
NM67-CC17 Reciever system used as part of the continous RFI
Environmental monitoring system (EMS) at the VLA |
R. Armendariz, R. Schmidt |
10/00 |
|
| 14 |
Radiated RFI Emissions from the ALMA Test Correlator
and 1.6 GHz Digitizers and Comparison to Harmful Levels
to VLA Observations |
R. Armendariz |
11/00 |
|
| 13 |
Harmonic Emissions Testing of Hand Held Radios |
J. Sinnott |
01/97 |
|
| 12 |
A Proposal to Control Local Interference
(also VLA Test Memo #188) |
B. Brundage, C. Janes |
04/94 |
|
| 11 |
Interference at 1330 MHz (also VLA Test Memo #185) |
E. Brinks, C. Janes, P. Lilie |
04/95 |
|
| 10 |
Frequency Allocations and Footnotes for Radio Astronomy
and Passive Radio Services |
B. Lilie, W.D. Brundage |
07/96 |
|
| 9 |
Presentation of VLA Interference Information on the Web |
N. Lui, D. Jenkins |
09/95 |
|
| 8 |
The VLA IF Interference Monitor |
C. Janes, R. Jones, D. Jenkins |
06/95 |
|
| 7 |
Digital Spectrometer/Autocorrelator for Monitoring RFI |
C. Janes |
06/95 |
|
| 6 |
Index of Interference Memos |
S. Lucero |
02/95 |
|
| 5 |
Strong Interference at the VLA, 1994 |
C. Janes |
02/95 |
|
| 4 |
Tests of the MIT 600 MHz Impulse Detector |
C. Janes |
01/30/95 |
|
| 3 |
US Frequency Allocation and Footnotes for Radio Astronomy and
Passive Radio Services |
W. D. Brundage |
11/07/94 |
|
| 2 |
RFI at Saint Croix due to FAA |
D. S. Bagri |
11/11/92 |
|
| 1 |
RFI Emissions from Vac Ion Pumps |
L. A. Beno |
11/11/92 |
|
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