Difference between revisions of "HAMTV from the ISS"

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===HAMTV specification===
 
===HAMTV specification===
  
* Ham Video downlink frequencies:
+
====Ham Video downlink frequencies====
    2395 MHz (2369 MHz
+
*2395 MHz (main operating frequency)
 +
*2369 MHz
 +
*2422 MHz
 +
*2437 MHz
  
 
+
====DVB-S modulation====
 +
*Symbol rates: 1.3 Ms/s and 2.0 Ms/s
 +
*FEC : ½
  
    2422 MHz
+
====Video format====
 
+
NTSC
    2437 MHz
+
SIF resolution: 352×240 or D1:720×480
 
 
    DVB-S modulation
 
    Symbol rates: 1.3 Ms/s and 2.0 Ms/s
 
    FEC : ½
 
    NTSC format (SIF: 352×240 or D1:720×480)
 

Revision as of 09:23, 2 March 2024

Following repairs carried out last year it now looks likely that the original HAMTV unit will be returned to the ISS with potential commissioning by a visiting astronaut during April 2024.

What is HamTV

HAMTV is the name of the Digital Amateur Television (DATV) transmitter on board the Columbus module of the International Space Station (ISS).

HamVideo1.jpg

It transmits Digital video and audio in MPEG-2 format using the DVB-S protocol in the 13cms band on 2395MHz.

HAMTV specification

Ham Video downlink frequencies

  • 2395 MHz (main operating frequency)
  • 2369 MHz
  • 2422 MHz
  • 2437 MHz

DVB-S modulation

  • Symbol rates: 1.3 Ms/s and 2.0 Ms/s
  • FEC : ½

Video format

NTSC SIF resolution: 352×240 or D1:720×480