Consolidated Coverage map of the entire University-Link repeater system, effective March 2022. Pins are active nodes.
The University-Link repeaters are linked together by AllStar hub node# 40933 located at grid EM10dg, 200′ AGL at The University of Texas at Austin. The hub location has a ~20 mile coverage radius and operates on emergency power. There are linked repeaters to the northwest.
441.325+, AKA “The Big ‘Un” AKA “The People’s Repeater“, is the flagship. PL 97.4 in/out (tone squelch recommended), analog, 25 watts, standard 5Mhz split. ID is KA5D. Located at EM10dg at the UT campus, 200′ AGL. Analog is AllStar linked, C4FM on local RF only. Link Status. Coverage map. APRS object info. Listen live, Broadcastify Feed ID# 29561.
927.0750-, pl 218.1 in/out, analog, 50 watts, standard 25MHz split. ID is KA5D. Located at EM10dg at the UT campus, 200′ AGL. This repeater is likely loaded into the memory bank of your radio if it was programmed by K5TRA, who also generously offered guidance in building this machine. Link Status. Coverage map. APRS object info.
446.450 simplex, pl 97.4 in/out, analog, 20 watts. ID is KA5D. Located at EM10cp near intersection of SH-29 and Ronald Reagan Blvd, west of Georgetown. Link Status. Coverage map. Node map. APRS object info.
YSF Reflector “US Uni-Link” room #55817: To connect your hotspot to this system and talk using your DMR or C4FM-DN radio, point it to the YSF Reflector “US Uni-Link” room #55817 at repeaters.as.utexas.edu, port 42000. Link Status.
Hamshack Hotline: Dial extension 94130 to connect to this repeater’s RF link on Hamshack Hotline. Use *99 to engage PTT, and # to disengage PTT. This is courtesy of KC2QJA. His HH extension is 86635.
Activities (all times Central)
8-9pm Wednesdays: The University of Texas Amateur Radio Club (UTARC) net. N5OAK system links to this system during this time as well.
6-6:20pm Fridays: The Amateur Radio Newsline broadcast.
9-11:30pm Fridays: This system is linked to the N5OAK repeater system for the N5OAK Trivia Net.
Other repeaters, nodes and resources at UT Austin
442.150+, C4FM-DN only, 25 watts, standard 5MHz split. ID is KA5C. Wires-X node ID 33929. Connected by default to WIRES-X room 40324 “SADRC” and can be changed to other rooms by users, for up to an hour before reverting to its default room. Coverage map. WIRES-X active room ID list. APRS object info.
KA5D-7 packet BBS node, running BPQ software, located at UT, 200′ AGL. It has a roughly 30 mile connection radius, and it can act as a digipeater to other nodes within range. Addresses:
– Internet: bbs.ka5d.com
– AMPRrnet: ka5d.ampr.org (126.96.36.199)
– Hierarchical BBS address: KA5D.#STX.TX.USA.NOAM
Available services, by call sign and alias. The node responds to either:
– Node & digipeater: KA5D-7, alias UT
– BBS (mail and bulletins): KA5D-1, alias UTBBS. Winlink gateway available. Contact KA5D to enable access, after you set up your BBS mail user.
– Chat: KA5D-11, alias UTCHAT
– RMS: KA5D-8, alias UTRMS for direct Winlink Express access.
The following connection ports are available:
– Port 1: 432.95 MHz 9600 baud packet, with digipeater
– Port 2: Telnet server, private VPN access only
– Port 3: AX/IP/UDP connection to other nodes.
– Port 4: 7.104 MHz 300 baud packet (LSB dial frequency) with digipeater. AX.25 & FX.25 capable.
– Port 5: 145.73 MHz 1200 baud packet, with digipeater. AX.25 & FX.25 capable.
KA5D-7 is the main node, alias UT. Connect to this one to create a user account. APRS object info. Packet node map. Chat node map.
SDR Radio Server. This is a public remote listening post available to those with the SDR Console client. IP address is sdr.ka5d.com port 50101. Default username/password is ka5d/ka5d and you can listen to it for up to an hour at a time before a 5-minute break is enforced. Ten simultaneous connections are allowed. Frequency range is 100 KHz through 1.2 GHz continuous. Radio is SDRPlay RSP1 connected to a Par EFHW for HF and a discone for VHF and above, making use of a diplexer to connect both to the radio. SDR-Radio Servers page.
Broadcastify feed for Austin area amateur repeaters. Most known operational amateur radio repeaters and simplex channels for Travis, Williamson, Hays, and Bastrop counties in Central Texas. Receiving station is 200′ AGL in central Austin. Feed ID# 14419. Broadcastify page. Live audio feed. APRS object info.
Broadcastify feed for Travis County law enforcement. Police dispatch for Austin, Travis County Sheriff, Texas DPS, UT, AISD, Lakeway, Manor, Pflugerville, Westlake, Rollingwood, Sunset Valley. Monitoring Simulcast 1 of the GATRRS system. Feed ID#14439. Broadcastify page. Live audio feed. APRS object info.
Broadcastify feeds on Alexa: Follow these instructions to let Alexa pull up these feeds above.
People and policies
The University-Link repeater system is a loose confederation of amateur operators with no membership or dues, and it is run as a Benevolent Anarcho-Technocracy. That is to say: we make no rules for the people, but rather only for the machines, to stave off the inevitable entropy to which they succumb.
Our motto: “Illegitimi non carborundum.”
Several of us are alumni, employees, or fans of UT Austin. Since 1996 we have operated this open repeater system in various forms, and all licensed amateur operators are encouraged to participate.
Financial support is accomplished by the core group financing the majority of equipment costs. These are actual equity holders in the system.
The trustees are ultimately responsible for the legal operation of the system. The system is registered through the Texas VHF FM Society. The trustees encourage freedom of speech, debate and discourse on any topic with free and unfettered communication of ideas and philosophies between all system users. We serve the community best when users feel comfortable to express their thoughts in a healthy and supportive environment. Normal rules of decorum and mutual respect are to be observed.