Diwata-2 Designated Philippines-OSCAR 101 (PO-101)

On October 29, 2018, the Diwata-2 microsatellite was launched on a H-IIA launch vehicle from the Tanegashima Space Center, Tanegashima, Japan. Diwata-2 was developed by the University of the Philippines Dillman (UPD) and the Advanced Science and Technology Institute of the Department of Science and Technology (DOST-ASTI) under the PHL-Microsat program (now succeeded by the STAMINA4Space program), and in cooperation with Tohoku University and Hokkaido University.  The project was funded by the Department of Science and Technology (DOST) and monitored by the DOST-Philippine Council for Industry, Energy and Emerging Technology Research and Development (DOST-PCIEERD). The satellite carries an amateur radio payload that has been tested and is now ready for service.

At the request of the STAMINA4Space program, AMSAT hereby designates Diwata-2 as Philippines-OSCAR 101 (PO-101). We congratulate the owners and operators of PO-101, thank them for their contribution to the amateur satellite community, and wish them continued success on this and future projects.

73,

Drew Glasbrenner, KO4MA
AMSAT VP Operations / OSCAR Number Administrator

PO-101

AMSAT Files Comments in FCC Orbital Debris Mitigation Proceeding

The Federal Communications Commission has proposed several rules changes related to the amateur satellite service as part of a Notice of Proposed Rulemaking (NPRM) related to the mitigation of orbital debris. AMSAT believes several of these rule changes would have an extremely detrimental effect on the amateur satellite service and AMSAT’s ability to launch and operate new satellites, including AMSAT’s upcoming GOLF satellites.

Today, AMSAT filed comments on the proposed rulemaking. In the comments, AMSAT argues that amateur satellites often have longer mission lifespans than other small satellite missions and that the Commission should take a mission duration of 5 to 10 years into account when determining whether or not an amateur satellite will meet the orbital debris regulations by transferring to a parking orbit or re-entering the atmosphere within 25 years of mission completion. The current practice is to assume a “zero year” mission and to require that amateur satellites either transfer to a parking orbit or re-enter within 25 years following launch.

AMSAT also urged the Commission to consider alternatives to a proposed rule that would restrict satellites in Low Earth Orbit that plan to meet the orbital debris mitigation guidelines through atmospheric re-entry to altitudes of 650 km or less. AMSAT noted that, had this rule been in place, AO-85 and AO-91 would not have been able to be deployed in their current ellipitcal orbits with apogees of approximately 800 km, despite the fact that both of these satellites will re-enter within 25 years due to their low perigees. Additionally, AMSAT noted that current plans for the GOLF-1 satellite are to meet orbital debris mitigation guidelines through atmospheric re-entry by deploying a drag device that will ensure re-entry within 25 years despite deployment at an altitude of above 1,000 km. This proposed rule would prohibit GOLF-1’s deployment at that altitude.

The Commission’s proposed rules would also require that amateur satellite licensees indemnify the government against any claims made against the United States due to the operation of the satellite. AMSAT believes this proposal would end the ability of AMSAT, or any other entity in the United States, to launch and operate amateur satellites and urges the Commission to consider alternatives, such as establishing a fund to pay any such claims, noting that the likelihood of such a claim is low.

For amateur satellites with propulsion, the Commission proposes a rule that would require any command links as well as satellite telemetry be encrypted. While AMSAT understands and agrees that a satellite carrying a propulsion system must have an encrypted command link, the proposal to require all satellite telemetry be encrypted is unnecessary and counter to the spirit of the amateur service. AMSAT notes that open access to telemetry is expected of amateur satellites and is critical to the educational component of amateur radio satellites.

Finally, AMSAT proposes that the Commission exempt amateur space stations co-located on other spacecraft from the orbital debris mitigation regulations, including any indemnification rule. Noting that AMSAT has pursued opportunities to fly a payload as a rideshare aboard government or commercial satellites, AMSAT argues that, as the satellite’s owner will need to meet orbital debris mitigation requirements to obtain the license in the primary mission’s service, requiring the amateur licensee to meet the orbital debris mitigation requirements as well is redundant. AMSAT proposes that Part 97 be amended to state that amateur space stations co-located on spacecraft with space stations authorized under Part 25 of the Commission’s regulations (for commercial spacecraft) or by the National Telecommunications and Information Administration (NTIA) (for government spacecraft) are exempt from these regulations.

AMSAT’s comments as filed may be read in their entirety below.

Comments of Radio Amateur Satellite Corporation - IB Docket No 18-313

The comments may be downloaded at https://www.amsat.org/wordpress/wp-content/uploads/2019/04/Comments-of-Radio-Amateur-Satellite-Corporation-IB-Docket-No-18-313.pdf.

The NPRM is International Bureau Docket #18-313 and is available at https://docs.fcc.gov/public/attachments/FCC-18-159A1.pdf.

Interested parties may file reply comments by May 5th at https://www.fcc.gov/ecfs/

AMSAT Academy to be Held Prior to Dayton Hamvention

Come join us the day before Hamvention, for AMSAT Academy – a unique opportunity to learn all about amateur radio in space and working the FM, linear transponder, and digital satellites currently in orbit.

AMSAT Academy will be held Thursday, May 16, 2019, from 9:00am to 5:00pm, at the Dayton Amateur Radio Association (DARA) Clubhouse, located at 6619 Bellefontaine Rd, Dayton, Ohio.

Registration Fee includes:

Full day of instruction, designed for both beginners and advanced amateur radio satellite operators, and taught by some of the most accomplished AMSAT operators.
Digital copy of Getting Started with Amateur Satellites, 2019 Edition ($15 value)
One-Year, AMSAT Basic Membership ($44 value)
Pizza Buffet Lunch.
Invitation to the Thursday night AMSAT get together at Ticket Pub and Eatery in Fairborn.

AMSAT Academy 2019 Registration Fee: $85.00. Registration closes May 10, 2019. No sign ups at the door. No refunds, No cancellations.

Registration may be purchased on the AMSAT Store.

Details about AMSAT’s other activities at the 2019 Hamvention, including the TAPR/AMSAT Banquet may be found here.

FoxTelem Version 1.07 Released

I’m officially releasing version 1.07 of FoxTelem. A test version has been out for a while, but it had several issues, including a lower decode rate than 1.06. That prevented release for a while. Those issues (and something like 65 other defects) are now all fixed and this decoder performs better than 1.06. Feel free to test them side by side and report back if that is not the case for you. We are always interested in any comparative results.

In addition to defects in FoxTelem 1.06 and earlier versions of 1.07, this also introduces Doppler calculation with automatic adjustment of the decoder frequency. This is especially useful for decoding beacons and has been helpful in testing for Fox-1A / AO-85 and Fox-1Cliff / AO-95 which are both in SAFE mode. Decoding from Doppler takes a bit of configuration to get right. Have a read of the new sections in the manual or ask for help if you want to give it a try. There are pros and cons vs “Find Signal” for sure.

Version 1.07 changes the core SDR within FoxTelem to use a Numerically Controlled Oscillator (NCO) rather than an FFT Filter for the conversion to base-band. This produces better decodes and will allow the support of wider bandwidth SDRs in the future. The old decoder is available still if needed from the settings screen. Read the manual for details.

Version 1.07 also introduces two new BPSK decoders in advance of the Fox-1E launch. (I have no inside information about when that will be, but I have the decoder ready 🙂 I also wrote some notes on the comparison between the two decoders, which you can read if you are interested in BPSK decoding performance, or just wonder what I do with my time in the evenings: http://www.g0kla.com/workbench/2019-03-09.php

The releases are here:
http://amsat.us/FoxTelem/windows/foxtelem_1.07y_windows.zip
http://amsat.us/FoxTelem/linux/foxtelem_1.07y_linux.tar.gz
http://amsat.us/FoxTelem/mac/foxtelem_1.07y_mac.tar.gz

KEY CHANGES in 1.07
~~~~~~~~~~~~~~~~~~
* Ability to add a new spacecraft from the menu. You can also remove them.
* Doppler calculation and tracking as an option instead of “Find Signal”
* A better SDR based on a Numerically Controlled Oscillator, ready for wider SDRs
* Two new PSK decoders – Costas Loop and Dotproduct
* RTL dongle implemented for testing, though more work to do
* Stops downloading keps when position calc is off
* Allows toggling of high speed / DUV display when in auto mode
* Fixed plotting issues for Earth plots
* Fixes several crashes and bugs
* Fixes copy paste issues with tables
* Respects left/right audio preference when processing wav files
* Implements formats for later spacecraft – Fox-1E and HuskySat
* Linux and Mac launch script updated to locate the JVM (especially on Mac). Please report if when this works/does not work
* MEMS gyro calibration updated
* Fixed a bug where AO-85 data from the server could not be stepped through

And many other bug fixes. Full list of changes here: https://github.com/ac2cz/FoxTelem/milestone/12?closed=1

Let me know any feedback.

73
Chris
G0KLA / AC2CZ