diff --git a/docs/a-netz.html b/docs/a-netz.html
index cbef09a..6a961e8 100644
--- a/docs/a-netz.html
+++ b/docs/a-netz.html
@@ -286,7 +286,7 @@ Instead of transmitting all 4 tones at once, they can be transmitted after each
Each tone is plays for a short time.
After the last tone has been played, base station starts again with the first tone.
My phone also responds to a call, even if the tones cycle rather than sent simultaneously.
-In this case the level of each tone is two times higher (+3 dB), but the peak level is two times lower (-3 dB) than the peak level of 4 simultaneous tones.
+In this case the deviation level of each tone is two times higher (+6 dB). (The level transmitted is two times lower (-6 dB) than the peak level of 4 simultaneous tones. This may help transmitters with deviation limiters to make the phone ring.)
Add command line option "-P 50" to send each tone for 50 milliseconds.
Try something between 20-100 milliseconds, if the phone still doesn't ring.
Be sure to check: Does your transmitter has enough frequency deviation (15 KHz is suggested)? Do you really send the correct number of your phone, check the frequencies of your phone and use "-D 0" option to see what 4 frequencies the base station actually transmits.
diff --git a/docs/index.html b/docs/index.html
index 33178ed..ae452a9 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -24,7 +24,15 @@ AMPS (Advanced Mobile Phone Service) ; my radio setup
-A base station implementation of classic mobile networks. All these networks use analog voice transmission. The signaling is done by tones and/or FSK modulated digital messages. It started with the idea to make a base station for the German B-Netz, but more networks followed. +A base station implementation of classic mobile networks. +All these networks use analog voice transmission. +The signaling is done by tones and/or FSK modulated digital messages. +It started with the idea to make a base station for the German B-Netz, but more networks followed. +
+ ++This project is pure software that requires a transmitter and a receiver connected to the sound card of a Linux PC. +A second sound card or ISDN card is used to route calls from and to the mobile phone.
nmt.c:1807 info : SMS for subscriber '3735859' -SMS sending '1234' -> '3735859': 1234,3735859,This is a test! +SMS sending '1234' -> '3735859': This is a test! nmt.c:1597 info : Call to mobile station, paging station id '3735859' nmt.c:434 info : Entering paging state (try 1), sending call to '3,735859'. nmt.c:443 info : Paging on our channel 1. diff --git a/docs/setup.html b/docs/setup.html index 1d17925..08c0c18 100644 --- a/docs/setup.html +++ b/docs/setup.html @@ -112,7 +112,7 @@ If you don't have the knowledge about power supplies, ask an expert to help you.Early tests were done without any wiring between radios and sound adapter. -This may worked for early tests with the B-Netz, but turned out to be a pain in the as. +This may worked for early tests with the B-Netz, but turned out to be a pain in the ass. It is not possible to keep the levels and avoid feed-backs.