@sv1cal.bsky.social
Working on a dual S/X feed supporting simultaneous RHCP/LHCP RX . There are 2x S band BPFs, 2x LNAs connected to Lime's Ch1/Ch2. A simple GRC flowgraph streams over UDP to 2 SatDump instances.
The coupler/120 deg phase shifter has been based on Maarten Baert's inspiring work.
NOAA 18, 2247.5 MHz, AOS 0916 UTC
12.04.2025 10:24 — 👍 2 🔁 0 💬 0 📌 0
Following up , some more details and notes about combining 2 linear orthogonal (V/H) polarizations in Gnuradio and a link to the grc file have been uploaded to my page. Please see below:
sv1cal.com/circular-pol...
Very first attempt to simultaneously receive L-band (1698 MHz) and S-band (2247.5 MHz) NOAA-19 downlinks using the experimental L/S/X feed.
15.02.2025 06:08 — 👍 5 🔁 0 💬 0 📌 0
Working on a L/S/X triband feed for WX/EO satellites. Have been using a partially 3D printed L/X feed so far, but it was time for an upgrade. Pictures show the ugly prototype in the focus of my 1.4 m dish on the balcony. It looks promising but more testing is needed of course.
09.02.2025 15:56 — 👍 6 🔁 0 💬 0 📌 0
Landsat 9 , 2282.3 MHz
12.01.2025 20:04 — 👍 2 🔁 0 💬 0 📌 0
NOAA-19, 2247.5 MHz, AOS 08:07 UTC
12.01.2025 10:16 — 👍 1 🔁 0 💬 0 📌 0
NOAA-18 , 2247.5 MHz, AOS 20:11 UTC
11.01.2025 21:01 — 👍 1 🔁 0 💬 0 📌 0
A while ago, I made a 80cm fiberglass dish. Alu tape made the surface reflective . Here I am exploring other alternatives like adding copper powder to polyester resin or painting it with conductive paint followed by copper plating . More on the page below:
sv1cal.com/diy-fibergla...
Nice ! What brand/model is it ? I guess will have to do a similar alignment. Thanks !
22.12.2024 11:50 — 👍 3 🔁 0 💬 1 📌 0
