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Teletext

837 bytes added, 23:29, 9 March 2020
/* 4. Alternative transmission */
==4. Alternative transmission ==
=== 4.1 over DNS ===
* using several record
* gzip ?
* base 64 ?
* several TXT ?
* benefit from dnssec
 
first part of page 100
 
0.100.teletext.fixme.ch TXT IN "905ds76agf57dsfsad76f57dsaf576dsa"
 
second part of page 100
 
1.100.teletext.fixme.ch TXT IN "7867868LJDSLD905dadsad987asdNHDF"
 
 
JS in browser can access via DoH:
 
https://dns.google/resolve?name=0.100.teletext.fixme.ch&type=txt
 
 
thick clients can use built-in resolver
 
=== 4.2 over DAB ===
 
* begin with the minimum 8 kbit/s slot
* keep the receiver on to save pages in memory
* receiver with small tactile lcd screen?
* bluetooth receiver accessible directly from a smartphone and a corresponding app?
 
=== 4.3 POCSAG ===
 
* always on receiver
* about 10 messages to update one page
* multiple client listening to the same ric number?
* very good RF coverage
==Misc==
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