Table of Contents
How does Aprs Digipeater work?
“Digipeater” is short for “Digital Repeater”; a repeater for packet data rather than voice. Unlike the standard voice repeater that receives on one frequency and retransmits what it hears simultaneously on another frequency, the usual digipeater is a single frequency device.
What is the APRS frequency?
144.390 MHz
The HX1 is a low-power amateur radio transmitter set to a fixed frequency of 144.390 MHz. In North America, this frequency is used for the Automatic Packet Reporting System, or APRS. APRS is a standard used by amateur-radio operators to broadcast live sensor data on a shared frequency.
What is an APRS IGate?
A Raspberry Pi-based APRS-IS gateway Around the world, amateurs operate internet gateway (IGate) systems to route received packets from the packet radio-based network to the internet-based APRS-IS service and back; these gateways can be receive-only or also have transmit capabilities.
How often should APRS beacon?
Beacon Rate APRS is a real-time communication system, so there is an expectation that you should be able to get a general idea of the local APRS landscape within 10 minutes of arriving on scene. For the most part I agree with that statement and recommend that home stations and digipeaters beacon at 10 minute intervals.
What is the frequency for APRS?
144.39 MHz
UBIQUITOUS OPERATIONS: APRS must work everywhere to be a true resource to the mobile ham radio operator. In North America, 144.39 MHz is dedicated throughout the continent. In Europe, use 144.80 and in Australia use 145.175 MHz..
What amateur radio frequency does the ISS use?
145.80 MHz
The ISS radio transmits signals at 145.80 MHz and receives signals at either 144.49 or 145.20 MHz, depending on its orbital location. Most school groups chosen to participate in the ARISS program set up a temporary ground station in their schools, often with the help of local amateur radio volunteers.
When should I listen to the ISS?
The ISS is in a very low orbit and so is only in range 5 or 6 times each day and then only for a maximum of 10 minutes on the best orbit. This means you need to make sure you’re listening at the right time to hear it.
What APRS path should I use?
Both low profile and Wide digis will potentially pick up the Wide1-1 path giving us a better chance of reception and then the Wide2-2 will go out two more hops. So to summarize, home stations should use either: Digi Callsign and Wide2-1, or just a Wide2-2. Mobile and portable stations use Wide1-1, Wide2-2.
Can ham radio reach the space station?
Now, through the Amateur Radio on the International Space Station (ARISS) program, ham radio operators and students from participating countries can make contact with astronauts aboard the ISS.