AST & Science, LLC has filed a request with the FCC for authorization to use 430-440 MHz for a constellation of 248 satellites to communicate with ground stations for the alleged purpose of telemetry, tracking and command. The ARRL absolutely opposes AST’s request to use our allocated frequencies for a commercial use. The ARRL has filed a formal response with the FCC requesting that the FCC deny AST’s request to use 430-440 MHz. The response can be found at: https://www.fcc.gov/ecfs/search/search-filings/filing/1072110100328 and at https://www.arrl.org/news/view/arrl-files-comments-to-protect-70-centimeter-amateur-band. It is still possible to file comments until August 5, 2025. John Robert Stratton N5AUS Director, West […]
Monthly Archives: July 2025
ARRL Files Comments to Protect 70-Centimeter Amateur Band
07/22/2025 ARRL The National Association for Amateur Radio® has filed comments with the Federal Communications Commission (FCC) to oppose part of an application that would impact the 70-centimeter amateur band for telemetry, tracking and command (TT&C) of satellites. The application, from AST & Science, LLC (AST), requests “unprecedented authorization to 430-440 MHz for a constellation totaling 248 satellites to communicate with five ground stations using up to five channels with up to 256 kHz bandwidth.” https://www.arrl.org/news/arrl-files-comments-to-protect-70-centimeter-amateur-band?fbclid=IwQ0xDSwLtKB9jbGNrAu0oCGV4dG4DYWVtAjExAAEeNjQ7zz4T_0pwVFyRNn4LzVMaoIOzoZuk21yzWgC76iMu6Xgxnasn0y0G05A_aem_ZmFrZWR1bW15MTZieXRlcw
878 Contacts
These are the names that will show up when receiving a DMR signal. This list should be update from time to time to get new contacts for your radio. You don’t have to add ALL contacts to list
878 Zones
Think of Zones as a collection of frequencies that you pick. If you chose to use the Roaming part this is where you would add as many frequencies into your zone.
878 Digital Programming
Use the image below as a basis on how to add a channel Make sure you have you contact list created first before choosing one. It’s also important to make sure your RADIO ID is listed. Key items you must research is Color Code and Slot
878 Analog Programming
Use the highlighted example to program the minimum NB: Decode is not always necessary or required for all repeaters
878 GPS Configure Digital
APRS-D Configure Open CPS and click APRS Set Auto TX Interval Set Digital 1 info Current Channel Slot 1 TG 310999 Private Call The Picture below is what it should look like. Login to Brandmeister to set APRS Click on self care Mimic settings of image below but make sure to set YOUR callsign Edit a channel Pick a digital channel to test Use the picture to set the highlighted areas Send the program to your radio Pull up this channel and wait for GPS lock Make sure your GPS is enabled too! Need more help reach out to […]
TARC Meeting Minutes July 2025
20250715-TARC-Meeting-Minutes