Monitor and Control Hardware Introduction Typical GBT receivers, those with four or fewer pixels, utilize a monitor and control system based on the VLBA Standar...
!Engineering Planning Table of Contents Seven Pixel Tests * Post Commissioning Tests * Commissioning Stability Tests March 26 and April 19, 2010: 800 MHz...
Nyquist Sampling at K band * \text{Magnification is 3, giving f/D of 3 x 0.6 = 1.9.} * \text{ Nyquist sampling (Voltage) of focal plane FWHM spacing requir...
KFPA Beam Spacing * K band hexagonal feed spacing in the focal plane and on the sky: * The above figure shows the hexgonal close packed spacing used ...
K band Phased Array Feed This wiki was co opted from the previous KbandFPA project. To find those links, go to the Old Web Home Overview The intent of this web i...
Useful Old KFPA Links and Documentation * GBT K band Beam Spacing (Receiver Independent) * Actual KFPA Feed and Pointing Offsets * LNA and Receiver Noise...
Window Types The window material is chosen from the leak rate measurement results, out gassing measurement results, and electrical characteristics as many other r...
This is obviously very much a work in progress. Right now it's primarily a note pad where thoughts and questions on the KFPA use cases can be displayed quickly. P...
Scratch space for thoughts on the KFPA data pipeline and processing issues. I am attempting to turn this into a KFPA data pipeline design document prior to the re...
Glen Langston provided the sample script and accompanying procedures attached here. These procedures are written specifically to work with two sets of mapping sc...
Frequency Switched KFPA Pipeline Use Case Figure 1: JCMT 850 um infrared image of Ophiucus, showing regions images B, C and D imaged with the GBT by Friesen et a...
KFPA LO and IF chain calculation requirements Modification Request #7 (C04 2009) 1. Introduction In order for the observers, engineers and commissioners to e...
Change Requests (Hardware) The following table is established to track all hardware changes, issue resolution, and other requests. These includes all changes to...
Observations in the K band frequency spectrum (18 26.5 GHz) of extended sources in the spectral line require inordinate amounts of telescope time with a single pi...
Software for the K band Focal Plane Array (KFPA) GBT software improvements and extensions are a critical part of the KFPA project, which will enable important new...
First K band Focal Plane Array Pixel Testing The first step in developing the full 61 pixel array is prototyping the first pixel hardware. The development of the ...
A large number of laboratory tests were performed before putting the receiver on the antenna. These include: * Gain curves over frequency band * Noise temp...
Software WBS for KFPA Reference Documentation * Example WBS's from the DSS project: * https://staff.nrao.edu/wiki/bin/view/GB/DssSoftwareWbs (current)...
2010 June GBT KFPA Call for Proposals The K band Focal Plan Array Receiver (KFPA) was successfully commissioned in March and April 2010. Initial results of these...
2011 February GBT KFPA Call for Proposals The K band Focal Plan Array Receiver (KFPA) was successfully re commissioned in August and September 2010. Results of t...
Monitor and Control of the K band Focal Plane Array Overview The GBT M C System The GBT monitor and control (M C) system, named Ygor, is a distributed object or...
KFPA M C Software Integration Path to a Common User Backend KFPA M C Manager The creation of a Manager and microcontroller firmware is the first step and handl...
Purpose The purpose of this page is to serve as a primer for discussion about designing a scalable M C software package for the K band FPA receiver. Introduction...
Conceptual Design Review CDR Final Report: CDR Panel Final Report Response to Final Report: Email to Committee Members Panel Members Name Affiliation ...
A seven feed, dual polarized K band focal plane array receiver is proposed for the Green Bank Telescope. This instrument will enhance the scientific capabilities ...
A design for the data pipeline for the prototype GBT K Band Focal Plane Array Introduction See the KFPA wiki for more information on the GBT K Band Focal Plane A...
A design for the data pipeline for the proposed GBT K Band Focal Plane Array Introduction See the KFPA wiki for more information on the proposed GBT K Band Foca...
KPAF Web Preferences The following settings are web preferences of the KPAF web. These preferences overwrite the site level preferences in . and , and can...
Communications Problems * When the KFPA Cleo Manager display are all "1 's", the control software is not communicating with the net burner card and needs to ...
KFPA Pipeline Development Note that much of the content of this documentation is out of date. Please refer to the GBT Pipeline documentation instead!!! This web...
Frequency Switched Pipeline Calibration Plan Note that much of the content of this documentation is out of date. Please refer to the GBT Pipeline documentation ...
KFPA and Pipeline Data Reduction Guide Note that much of the content of this documentation is out of date. Please refer to the GBT Pipeline documentation instea...
K Band Focal Plane Array (KFPA) and Pipeline Observer's Guide Note that much of the content of this documentation is out of date. Please refer to the GBT Pipeli...
Position Switched Pipeline Calibration Plan Note that much of the content of this documentation is out of date. Please refer to the GBT Pipeline documentation i...
Main.StevenWhite 2013 02 28 An ongoing issue is the stability of the integrated noise calibration module,ICM. Occasionally the values are not loaded properly, a ...
KFPA Firmware Documentation 1. Intro The GBT M C Manager communicates with the underlying KFPA hardware via the firmware on a Netburner card: http://netburner.co...
KFPA Calibration and Test Observations, continuued KFPA calibration observations are presented for Autumn 2011. The primary calibration observations were made t...
KFPA hardware and software tests TKFPA_75, August 31, 2011: Repeated Spectral line band scans for stability test * Nod observations while telescope stowed du...
KFPA hardware and software checks during "Shared Risk" observations TKFPA_40, December 15, 2010: Calibration check observations of 3C48 and the Moon Performed Da...