HAM
Amateur Radio "HAM"
[EXMPERIMENTAL]
LIVE Stream: rtmp://space.noisebridge.info/live/HAMbridge
Open in VLC as network stream (Ctrl + N)
This is a test stream directly from our FPGA based streaming box. It is up most of the time and running a test feed with an HDMI input and overlays with VGA from pegasus showing tmux with performance and weather information. The stream may not start properly, and I sometimes have to try loading it a few times for the video to stream properly. There is audio from Mary piped in but it usually quite. Looking to switch this over to monitor SDR or the like as well.
Want to talk radio or the like, open jitsi meeting available, there may or may not be anybody home: https://jitsi.noisebridge.io/HAM
Band Plan: http://www.arrl.org/graphical-frequency-allocations
Antennas
2m (VHF)
- https://everydayready.wordpress.com/2015/10/19/diy-2m-tape-measure-yagi-antenna/
- https://offgridsurvival.com/2meterantenna-homebrewdroopygroundplane/
- http://iz8jji.blogspot.com/2011/04/roll-up-2m-jpole-antenna.html
40m (HF)
Vertical Antenna
https://www.electronics-notes.com/articles/antennas-propagation/vertical-antennas/vertical-types.php
G5RV Dipole
https://en.wikipedia.org/wiki/G5RV_antenna
Works ideally suspended horizontally above the ground. Inverted V is also common with greater then 90 degree spread.
Bay Area Repeaters
VHF 2m (144-148 Mhz)
2m/70cm Repeater Book Entries within 25mi of Noisebridge
Testing uplink and downlink analog capabilities starting on the 2 meter band, the following stations have been confirmed working from the East Bay with relatively low power setups.
Callsign Frequency Offset Tone Location County
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K6EAG 145.130 -0.6 MHz 127.3 Hayward Alameda
W6RGG 147.240 +0.6 MHz 107.2 San Leandro Alameda
W6PW 145.150 -0.6 Mhz 664N* Sutro Tower San Francisco
WB6NDJ 146.880 -0.6 Mhz 77.0 Oakland Alameda
WA6TOW 146.925 -0.6 Mhz 114.8 North Peak San Mateo
N6NFI 145.230 -0.6 Mhz 100.0 Palo Alto Santa Clara
WR6ABD 146.640 -0.6 Mhz 162.2 Loma Prieta Santa Clara
KI6AOZ 146.085 +0.6 Mhz 114.8 Newark Alameda
W6CX 147.060 +0.6 Mhz 100.0 Mt. Diablo Alameda
Tone: Unless otherwise noted is up-link tone frequency in Hz
* Uses DCS on Rx/Tx
UHF 70cm (420-450 Mhz)
WW6BAY 443.975 100.0
Tone Control
DTMF
Try '699' on N6NFI
DCS
- http://mmi-comm.tripod.com/dcs.html
- https://wiki.radioreference.com/index.php/DCS
- http://www.repeater-builder.com/tech-info/ctcss/ctcss-overview.html
SDR
Satellites
https://publiclab.org/notes/sashae/06-26-2020/diy-satellite-ground-station