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authorAndreas Eversberg <jolly@eversberg.eu>2017-12-05 20:36:11 +0100
committerAndreas Eversberg <jolly@eversberg.eu>2018-01-21 10:46:09 +0100
commit147cf5593d3867d5954643dacef089b82a72903f (patch)
tree5576cf0ce67759aaaa293567febd3b137c4aba8b
parent72bdd3376f7f0a6e49f0ea03825eb5d467cbc879 (diff)
work on docs
-rw-r--r--README10
-rw-r--r--docs/a-netz.html2
-rw-r--r--docs/index.html2
-rw-r--r--docs/sdr.html12
4 files changed, 15 insertions, 11 deletions
diff --git a/README b/README
index 492d5fa..a60667b 100644
--- a/README
+++ b/README
@@ -1,7 +1,9 @@
This software implements base station protocol of classic mobile phones. With
radio transmitter and receiver connected to one sound card and a headset
connected to another sound card, it is possible to make and receive calls to
-and from mobile phone. Currently supported networks:
+and from mobile phone. With SDR (software defined radio) it can be use without
+radio equipment connected to a sound card, and even multiple channels can be
+generated simultaniously using SDR. Currently supported networks:
* A-Netz
* B-Netz (ATF-1)
@@ -9,7 +11,9 @@ and from mobile phone. Currently supported networks:
* NMT 450 / 900 (Nordic Mobile Telephone)
* AMPS (Advanced Mobile Phone System)
* TACS (Total Access Communication System)
+ * JTACS (Japanese version of TACS)
* Radiocom 2000 (French network)
+ * JollyCom (Unofficial network, invented by the author)
USE AT YOUR OWN RISK!
@@ -49,6 +53,6 @@ providing memory cards to be programmed for older C-Netz phone.
Dieter Spaar providing TACS recordings to verify and debug TACS support.
-Hans Wigger providing Radiocom 2000 recordings to reverse-enigeer the signalling
-system.
+Hans Wigger providing Radiocom 2000 recordings, to reverse-enigeer the standard,
+which seems not to exist anymore...
diff --git a/docs/a-netz.html b/docs/a-netz.html
index b0bf9ee..9bb47b6 100644
--- a/docs/a-netz.html
+++ b/docs/a-netz.html
@@ -23,7 +23,7 @@ History
<p>
A-Netz was the first mobile telephone network in Germany.
-It existed between 1985 and 1977.
+It existed between 1958 and 1977.
The first mobile units were huge and heavy and consisted of radio tubes.
Only big cars could carry these units in their trunk.
It used full duplex radio link.
diff --git a/docs/index.html b/docs/index.html
index f4a2274..7cb44ee 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -36,7 +36,7 @@
</tr>
<tr>
<th>AMPS (USA) / TACS (UK / Ireland / Italy)</th>
- <th>my ealy radio setup</th>
+ <th>my early radio setup</th>
</tr>
</table>
</center>
diff --git a/docs/sdr.html b/docs/sdr.html
index 687a10e..c4b3bf5 100644
--- a/docs/sdr.html
+++ b/docs/sdr.html
@@ -145,11 +145,11 @@ Multiple Channels
<p>
Multiple channels can be useful, to keep the control channel, while establishing one or even multiple voice channels.
-One nice things about SDR is that a spectrum is transmitted and not just one modulated carrier.
-Because the carrier is actually generated in software, we can generate multiple carriers that fit in our bandwidth.
+One nice feature of SDR is that a spectrum is transmitted and not just one modulated carrier.
+Because the carrier is actually generated in software, we can generate multiple carriers that fit in our spectrum.
I suggest to have at least one channel space between channels you want to generate.
I suggest to use channel 1 and 3 or even channel 1 and 4 for NMT system.
-The software will notice you, if the channels wont fit into the bandwidth.
+The software will notice you, if the channels wont fit into the spectrum.
In this case increase the sample rate (-s) to generate a wider spectrum. (--sdr-samplerate must not need to be changed)
</p>
@@ -161,7 +161,7 @@ I suggest to stay below 60% for each threads.
</p>
<p>
-Example: C-Netz<br>
+<b>Example: C-Netz</b><br>
Two channes are created, one the OgK (control channel) and one SpK (speech channel).
The distance between channels is 20 KHz (two channels).
Because C-Netz uses only odd channel numbers for 10 KHz spacing, we use channel 131 (OgK) and 135 (SpK).
@@ -180,8 +180,8 @@ Because C-Netz uses only odd channel numbers for 10 KHz spacing, we use channel
</pre>
<p>
-Example: Test TV signal<br>
-Give PAL 'FUBK' test image on TV channel 21.
+<b>Example: Test TV signal</b><br>
+Transmit PAL 'FUBK' test image on TV channel 21.
</p>
<pre>