ISS Radio Report

Date/Time: 
1 year 5 weeks ago
Mode: 
PACKET
Status: 
ACTIVE
Description: 
Interesting 68 degree pass over Southern California. Heard KK6QMS early on & worked him for a packet qso, then nothing else heard but RS0ISS-1 beacons for remainder of pass.
KK6OTJ – Thu, 2017 – 06 – 08 02:16

Re:RS0ISS-1 beacons

It's really hard to get digipeated when stations are logged onto RS0ISS-1 pms and in use whilst continuously churning bbs packets especially with 5 watt HT's even with yagis.

The following information is taken from ISS/APRS Satellite Frequently Asked Questions by Bob Bruninga, WB4APR, US Naval Academy Satellite Lab, Annapolis, MD.

ISS PMS SYSTEM: The PMS (Personal Message System) was a common packet function 2 decades ago on Earth but it is extremely inefficient on orbit. Just to communicate one line of text, can take over 5 packets, all exchanged in an extreemely congested channel. It simply makes no sense on orbit where one logon-attemp, can consume an entire pass with zero passed traffic.

Submitted by G7HCE on Thu, 2017-06-08 06:17.
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