Construction
Car mp5 player manual manufacturer/supplier, China car mp5 player manual manufacturer & factory list, find qualified Chinese car mp5 player manual manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com. Phone manuals and free pdf instructions. Find the user manual you need for your phone and more at ManualsOnline. Avaya Cordless Telephone 9601 User Guide ManualsOnline.com. Equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, There is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio. Cheap Car Multimedia Player, Buy Quality Automobiles & Motorcycles Directly from China Suppliers:Zeepin 9601G Car Multimedia Player 1 Din 7 inch Audio Stereo FM Radio GPS Navigation Bluetooth Auto Payer Universal Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return. 1 Tag;Count 2 c#;101811 3 java;62386 4 php;53884 5.net;49639 6 javascript;46608 7 asp.net;45444 8 c;38691 9 jquery;38321 10 iphone;35754 11 python;31852 12 sql;25316 13 mysql;23236 14 html;21936 15 sql-server;18360 16 ruby-on-rails;18181 17 c;17256 18 objective-c;17250 19 css;16429 20 wpf;15950 21 android;15614 22 asp.net-mvc;15034 23 windows.
The FSK9601 is intendedfor use with the TNC3S or TNC31 Packet-Radio Controller. Dimensions: 120x40 mm.The modem is connected to the TNC with a 20 pin flat ribbon cable. The trimmerfor output voltage can be accessed through a window on the TNC3 rear panel. Theradio transceiver is connected via a 5 pin standard DIN plug.
FSK9601
Data
The FSK9601 is a FSK-modemwhich receives and transmits data according the G3RUH-standard. It produces aband-limited data signal with 9600 baud data rate and can be modified to otherspeeds from 4800 up to 614k Baud by changeing some components and jumpers.
The FSK9601 transmitfilter and receiver design was developed by Ulf Kumm, DK9SJ. The scramblingalgorithm is compatible with the G3RUH standard, the PGA design was derived froma design of DF9IC.
power supply: 5 V approx. 120 mA from the TNC |
muting: the transmitter is muted when receiving. |
PTT-watchdog: contunuous transmit time is limited to approx. 20 sec (may be disabled by a jumper) |
bit-error-test jumper: a constant '1' may be transmitted when the according jumper is closed. |
transmit jumper: for tests, the modem may be set to continuous transmit mode by a jumper. |
high impedance input (100 kOhm // 100pF) 50 - 500 mV input voltage required. |
output voltage adjustable 10 mV to 3 V, 2 kOhm series resistance, DC-decoupled. |
3 test points for TX, RX and PTT |
input voltage limiter prevents overdrive due to changes of the dc voltage across the input when switching from transmit to receive mode |
FIR-filter programmed for FSK (cos-rolloff characteristics) and GMSK filter response. 128-tap FIR-filter with 128 taps (16-fold oversampling x 8 bit length). The digital filter produces a minimum of distortions and harmonics. |
flexible baudrate: the board is designed for a variety of transmit and receive baudrates, ranging from 4800, 9600, 19200, 38400, 76800, 153600, 307200 up to 614400 Baud FSK. Transmit and receive baudrate can be selected different, e.g. for satellite use with 9600 Baud uplink and 38400 baud downlink. |
suited for full duplex (simultaneous transmit and receive) |
how to order / prices of FSK9600 and related products
(PHP 5, PHP 7, PHP 8)
stream_get_contents — Reads remainder of a stream into a string
Description
$handle, int$maxlength = -1, int$offset = -1): string|false Identical to file_get_contents(), except that stream_get_contents() operates on an already open stream resource and returns the remaining contents in a string, up to maxlength bytes and starting at the specified offset.
Parameters
handle (resource)A stream resource (e.g. returned from fopen())
maxlength (int)
The maximum bytes to read. Defaults to -1 (read all the remaining buffer).
offset (int)Seek to the specified offset before reading. If this number is negative, no seeking will occur and reading will start from the current position.
Return Values
Returns a string or false on failure.
Examples
Example #1 stream_get_contents() example
<?php
if ($stream = fopen('http://www.example.com', 'r')) {
// print all the page starting at the offset 10
echo stream_get_contents($stream, -1, 10);
fclose($stream);
}
if ($stream = fopen('http://www.example.net', 'r')) {
// print the first 5 bytes
echo stream_get_contents($stream, 5);
fclose($stream);
}
?>See Also
- fgets() - Gets line from file pointer
- fread() - Binary-safe file read
- fpassthru() - Output all remaining data on a file pointer
In that case when stream_get_contents/fread/fgets or other stream reading functions block indefinitely your script because they don't reached the limit of bytes to read use the socket_get_meta_data function to figure out the number of the bytes to read. It returns an array that contains a key named 'unread_bytes' and then pass that number to your favourite stream reading functions second parameter to read from the stream.
Maybe a good workaround to use the stream_select function, and set the socket to non-blocking mode with the use of stream_set_blocking($stream, 0). In this case the socket reading functions work properly.
Cheers, ErvinIt is important to know that stream_get_contents behaves differently with different versions of PHP. Consider the following
<?php
$handle = fopen('file', 'w+'); // truncate + attempt to create
fwrite($handle, '12345'); // file position > 0
rewind($handle); // position = 0
$content = stream_get_contents($handle); // file position = 0 in PHP 5.1.6, file position > 0 in PHP 5.2.17!
fwrite($handle, '6789');
fclose($handle);
/**
*
* 'file' content
*
* PHP 5.1.6:
* 67895
*
* PHP 5.2.17:
* 123456789
*
*/
?>
As a result, stream_get_contents() affects file position in 5.1, and do not affect file position in 5.2 or better.When omitting the parameter $maxlength, any received bytes are stacked up until the underlying stream is not readable anymore, the the function returns that stack in one piece.stream_get_contents() can be used instead of fread() even with local files.Model 9601 Radio Instructions Diagram
/*
* problem: stream_get_contents blocks / is very slow.
* I have tried
* 1: stream_set_blocking, doesn't make a difference.
* 2: stream_get_meta_data['unread_bytes'] = ITS BUGGED, ALWAYS SAYS 0.
* 3: feof(): ALSO EFFING BLOCKING
* 4: my_stream_get_contents hack... kinda working! :D
*/
function my_stream_get_contents ($handle, $timeout_seconds = 0.5)
{
$ret = ';
// feof ALSO BLOCKS:
// while(!feof($handle)){$ret.=stream_get_contents($handle,1);}
while (true) {
$starttime = microtime(true);
$new = stream_get_contents($handle, 1);
$endtime = microtime(true);
if (is_string($new) && strlen($new) >= 1) {
$ret .= $new;
}
$time_used = $endtime - $starttime;
// var_dump('time_used:',$time_used);
if (($time_used >= $timeout_seconds) || ! is_string($new) ||
(is_string($new) && strlen($new) < 1)) {
break;
}
}
return $ret;
}Model 9601 Radio Instructions Pdf
- Stream Functions