ISS Australian Amateur Radio pass September 4 2020
Вставка
- Опубліковано 7 лис 2024
- This video shows the Australia wide amateur radio activity on today's pass of the International Space Station over Melbourne. The insert in the corner shows you where the #ISS is at the same time you can hear the contacts and see the signal strength on the radio. The antenna is a 5 element horizontal yagi. No preamps and the results are S9+ signals most of the time.
The doppler is +/- 10kHz as the ISS is only 400km or so up. At the start of the pass, it'll be 437.81 and by the end, it'll be 437.79 MHz. Take this into account when you're listening for it.
Mode: FM Voice
Uplink Frequency: 145.990 MHz, PL 67.0 Hz
Downlink Frequency: 437.800 MHz
The repeater on the ISS uses the new InterOperable Radio System (IORS), a space-modified JVC Kenwood D710GA transceiver, and an ARISS developed power supply system.
The IORS was launched from Kennedy Space Center on March 6, 2020, onboard the SpaceX CRS-20 resupply mission. It consists of a special, space-modified JVC Kenwood D710GA transceiver, an ARISS developed multi-voltage power supply and interconnecting cables. The design, development, fabrication, testing, and launch of the first IORS was an incredible five-year engineering achievement accomplished by the ARISS hardware volunteer team. It will enable new, exciting capabilities for ham radio operators, students, and the general public.
stationproject...
How is the transceiver doing its automatic doppler adjustment? Is there a piece of software you're using to make those adjustments?
A bit of operating etiquette wouldn't go astray...but mostly good.
Some need to reduce their TX power too.