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-rw-r--r--Documentation/DocBook/dvb/dvbapi.xml10
-rw-r--r--Documentation/DocBook/dvb/dvbproperty.xml408
-rw-r--r--Documentation/DocBook/dvb/frontend.h.xml20
-rw-r--r--Documentation/DocBook/dvb/frontend.xml2
4 files changed, 366 insertions, 74 deletions
diff --git a/Documentation/DocBook/dvb/dvbapi.xml b/Documentation/DocBook/dvb/dvbapi.xml
index e3a97fdd62a6..9fad86ce7f5e 100644
--- a/Documentation/DocBook/dvb/dvbapi.xml
+++ b/Documentation/DocBook/dvb/dvbapi.xml
@@ -28,13 +28,21 @@
28 <holder>Convergence GmbH</holder> 28 <holder>Convergence GmbH</holder>
29</copyright> 29</copyright>
30<copyright> 30<copyright>
31 <year>2009-2010</year> 31 <year>2009-2011</year>
32 <holder>Mauro Carvalho Chehab</holder> 32 <holder>Mauro Carvalho Chehab</holder>
33</copyright> 33</copyright>
34 34
35<revhistory> 35<revhistory>
36<!-- Put document revisions here, newest first. --> 36<!-- Put document revisions here, newest first. -->
37<revision> 37<revision>
38 <revnumber>2.0.4</revnumber>
39 <date>2011-05-06</date>
40 <authorinitials>mcc</authorinitials>
41 <revremark>
42 Add more information about DVB APIv5, better describing the frontend GET/SET props ioctl's.
43 </revremark>
44</revision>
45<revision>
38 <revnumber>2.0.3</revnumber> 46 <revnumber>2.0.3</revnumber>
39 <date>2010-07-03</date> 47 <date>2010-07-03</date>
40 <authorinitials>mcc</authorinitials> 48 <authorinitials>mcc</authorinitials>
diff --git a/Documentation/DocBook/dvb/dvbproperty.xml b/Documentation/DocBook/dvb/dvbproperty.xml
index 5f57c7ccd4ba..b5365f61d69b 100644
--- a/Documentation/DocBook/dvb/dvbproperty.xml
+++ b/Documentation/DocBook/dvb/dvbproperty.xml
@@ -1,6 +1,330 @@
1<section id="FE_GET_PROPERTY"> 1<section id="FE_GET_SET_PROPERTY">
2<title>FE_GET_PROPERTY/FE_SET_PROPERTY</title> 2<title>FE_GET_PROPERTY/FE_SET_PROPERTY</title>
3 3
4<programlisting>
5/* Reserved fields should be set to 0 */
6struct dtv_property {
7 __u32 cmd;
8 union {
9 __u32 data;
10 struct {
11 __u8 data[32];
12 __u32 len;
13 __u32 reserved1[3];
14 void *reserved2;
15 } buffer;
16 } u;
17 int result;
18} __attribute__ ((packed));
19
20/* num of properties cannot exceed DTV_IOCTL_MAX_MSGS per ioctl */
21#define DTV_IOCTL_MAX_MSGS 64
22
23struct dtv_properties {
24 __u32 num;
25 struct dtv_property *props;
26};
27</programlisting>
28
29<section id="FE_GET_PROPERTY">
30<title>FE_GET_PROPERTY</title>
31<para>DESCRIPTION
32</para>
33<informaltable><tgroup cols="1"><tbody><row><entry
34 align="char">
35<para>This ioctl call returns one or more frontend properties. This call only
36 requires read-only access to the device.</para>
37</entry>
38 </row></tbody></tgroup></informaltable>
39<para>SYNOPSIS
40</para>
41<informaltable><tgroup cols="1"><tbody><row><entry
42 align="char">
43<para>int ioctl(int fd, int request = <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>,
44 dtv_properties &#x22C6;props);</para>
45</entry>
46 </row></tbody></tgroup></informaltable>
47<para>PARAMETERS
48</para>
49<informaltable><tgroup cols="2"><tbody><row><entry align="char">
50<para>int fd</para>
51</entry><entry
52 align="char">
53<para>File descriptor returned by a previous call to open().</para>
54</entry>
55 </row><row><entry
56 align="char">
57<para>int num</para>
58</entry><entry
59 align="char">
60<para>Equals <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link> for this command.</para>
61</entry>
62 </row><row><entry
63 align="char">
64<para>struct dtv_property *props</para>
65</entry><entry
66 align="char">
67<para>Points to the location where the front-end property commands are stored.</para>
68</entry>
69 </row></tbody></tgroup></informaltable>
70<para>ERRORS</para>
71<informaltable><tgroup cols="2"><tbody><row>
72 <entry align="char"><para>EINVAL</para></entry>
73 <entry align="char"><para>Invalid parameter(s) received or number of parameters out of the range.</para></entry>
74 </row><row>
75 <entry align="char"><para>ENOMEM</para></entry>
76 <entry align="char"><para>Out of memory.</para></entry>
77 </row><row>
78 <entry align="char"><para>EFAULT</para></entry>
79 <entry align="char"><para>Failure while copying data from/to userspace.</para></entry>
80 </row><row>
81 <entry align="char"><para>EOPNOTSUPP</para></entry>
82 <entry align="char"><para>Property type not supported.</para></entry>
83 </row></tbody></tgroup></informaltable>
84</section>
85
86<section id="FE_SET_PROPERTY">
87<title>FE_SET_PROPERTY</title>
88<para>DESCRIPTION
89</para>
90<informaltable><tgroup cols="1"><tbody><row><entry
91 align="char">
92<para>This ioctl call sets one or more frontend properties. This call only
93 requires read-only access to the device.</para>
94</entry>
95 </row></tbody></tgroup></informaltable>
96<para>SYNOPSIS
97</para>
98<informaltable><tgroup cols="1"><tbody><row><entry
99 align="char">
100<para>int ioctl(int fd, int request = <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>,
101 dtv_properties &#x22C6;props);</para>
102</entry>
103 </row></tbody></tgroup></informaltable>
104<para>PARAMETERS
105</para>
106<informaltable><tgroup cols="2"><tbody><row><entry align="char">
107<para>int fd</para>
108</entry><entry
109 align="char">
110<para>File descriptor returned by a previous call to open().</para>
111</entry>
112 </row><row><entry
113 align="char">
114<para>int num</para>
115</entry><entry
116 align="char">
117<para>Equals <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link> for this command.</para>
118</entry>
119 </row><row><entry
120 align="char">
121<para>struct dtv_property *props</para>
122</entry><entry
123 align="char">
124<para>Points to the location where the front-end property commands are stored.</para>
125</entry>
126 </row></tbody></tgroup></informaltable>
127<para>ERRORS
128</para>
129<informaltable><tgroup cols="2"><tbody><row>
130 <entry align="char"><para>EINVAL</para></entry>
131 <entry align="char"><para>Invalid parameter(s) received or number of parameters out of the range.</para></entry>
132 </row><row>
133 <entry align="char"><para>ENOMEM</para></entry>
134 <entry align="char"><para>Out of memory.</para></entry>
135 </row><row>
136 <entry align="char"><para>EFAULT</para></entry>
137 <entry align="char"><para>Failure while copying data from/to userspace.</para></entry>
138 </row><row>
139 <entry align="char"><para>EOPNOTSUPP</para></entry>
140 <entry align="char"><para>Property type not supported.</para></entry>
141 </row></tbody></tgroup></informaltable>
142</section>
143
144<section>
145 <title>Property types</title>
146<para>
147On <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>/<link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>,
148the actual action is determined by the dtv_property cmd/data pairs. With one single ioctl, is possible to
149get/set up to 64 properties. The actual meaning of each property is described on the next sections.
150</para>
151
152<para>The available frontend property types are:</para>
153<programlisting>
154#define DTV_UNDEFINED 0
155#define DTV_TUNE 1
156#define DTV_CLEAR 2
157#define DTV_FREQUENCY 3
158#define DTV_MODULATION 4
159#define DTV_BANDWIDTH_HZ 5
160#define DTV_INVERSION 6
161#define DTV_DISEQC_MASTER 7
162#define DTV_SYMBOL_RATE 8
163#define DTV_INNER_FEC 9
164#define DTV_VOLTAGE 10
165#define DTV_TONE 11
166#define DTV_PILOT 12
167#define DTV_ROLLOFF 13
168#define DTV_DISEQC_SLAVE_REPLY 14
169#define DTV_FE_CAPABILITY_COUNT 15
170#define DTV_FE_CAPABILITY 16
171#define DTV_DELIVERY_SYSTEM 17
172#define DTV_ISDBT_PARTIAL_RECEPTION 18
173#define DTV_ISDBT_SOUND_BROADCASTING 19
174#define DTV_ISDBT_SB_SUBCHANNEL_ID 20
175#define DTV_ISDBT_SB_SEGMENT_IDX 21
176#define DTV_ISDBT_SB_SEGMENT_COUNT 22
177#define DTV_ISDBT_LAYERA_FEC 23
178#define DTV_ISDBT_LAYERA_MODULATION 24
179#define DTV_ISDBT_LAYERA_SEGMENT_COUNT 25
180#define DTV_ISDBT_LAYERA_TIME_INTERLEAVING 26
181#define DTV_ISDBT_LAYERB_FEC 27
182#define DTV_ISDBT_LAYERB_MODULATION 28
183#define DTV_ISDBT_LAYERB_SEGMENT_COUNT 29
184#define DTV_ISDBT_LAYERB_TIME_INTERLEAVING 30
185#define DTV_ISDBT_LAYERC_FEC 31
186#define DTV_ISDBT_LAYERC_MODULATION 32
187#define DTV_ISDBT_LAYERC_SEGMENT_COUNT 33
188#define DTV_ISDBT_LAYERC_TIME_INTERLEAVING 34
189#define DTV_API_VERSION 35
190#define DTV_CODE_RATE_HP 36
191#define DTV_CODE_RATE_LP 37
192#define DTV_GUARD_INTERVAL 38
193#define DTV_TRANSMISSION_MODE 39
194#define DTV_HIERARCHY 40
195#define DTV_ISDBT_LAYER_ENABLED 41
196#define DTV_ISDBS_TS_ID 42
197</programlisting>
198</section>
199
200<section id="fe_property_common">
201 <title>Parameters that are common to all Digital TV standards</title>
202 <section id="DTV_FREQUENCY">
203 <title><constant>DTV_FREQUENCY</constant></title>
204
205 <para>Central frequency of the channel, in HZ.</para>
206
207 <para>Notes:</para>
208 <para>1)For ISDB-T, the channels are usually transmitted with an offset of 143kHz.
209 E.g. a valid frequncy could be 474143 kHz. The stepping is bound to the bandwidth of
210 the channel which is 6MHz.</para>
211
212 <para>2)As in ISDB-Tsb the channel consists of only one or three segments the
213 frequency step is 429kHz, 3*429 respectively. As for ISDB-T the
214 central frequency of the channel is expected.</para>
215 </section>
216
217 <section id="DTV_BANDWIDTH_HZ">
218 <title><constant>DTV_BANDWIDTH_HZ</constant></title>
219
220 <para>Bandwidth for the channel, in HZ.</para>
221
222 <para>Possible values:
223 <constant>1712000</constant>,
224 <constant>5000000</constant>,
225 <constant>6000000</constant>,
226 <constant>7000000</constant>,
227 <constant>8000000</constant>,
228 <constant>10000000</constant>.
229 </para>
230
231 <para>Notes:</para>
232
233 <para>1) For ISDB-T it should be always 6000000Hz (6MHz)</para>
234 <para>2) For ISDB-Tsb it can vary depending on the number of connected segments</para>
235 <para>3) Bandwidth doesn't apply for DVB-C transmissions, as the bandwidth
236 for DVB-C depends on the symbol rate</para>
237 <para>4) Bandwidth in ISDB-T is fixed (6MHz) or can be easily derived from
238 other parameters (DTV_ISDBT_SB_SEGMENT_IDX,
239 DTV_ISDBT_SB_SEGMENT_COUNT).</para>
240 <para>5) DVB-T supports 6, 7 and 8MHz.</para>
241 <para>6) In addition, DVB-T2 supports 1.172, 5 and 10MHz.</para>
242 </section>
243
244 <section id="DTV_DELIVERY_SYSTEM">
245 <title><constant>DTV_DELIVERY_SYSTEM</constant></title>
246
247 <para>Specifies the type of Delivery system</para>
248
249 <para>Possible values: </para>
250<programlisting>
251typedef enum fe_delivery_system {
252 SYS_UNDEFINED,
253 SYS_DVBC_ANNEX_AC,
254 SYS_DVBC_ANNEX_B,
255 SYS_DVBT,
256 SYS_DSS,
257 SYS_DVBS,
258 SYS_DVBS2,
259 SYS_DVBH,
260 SYS_ISDBT,
261 SYS_ISDBS,
262 SYS_ISDBC,
263 SYS_ATSC,
264 SYS_ATSCMH,
265 SYS_DMBTH,
266 SYS_CMMB,
267 SYS_DAB,
268 SYS_DVBT2,
269} fe_delivery_system_t;
270</programlisting>
271
272 </section>
273
274 <section id="DTV_TRANSMISSION_MODE">
275 <title><constant>DTV_TRANSMISSION_MODE</constant></title>
276
277 <para>Specifies the number of carriers used by the standard</para>
278
279 <para>Possible values are:</para>
280<programlisting>
281typedef enum fe_transmit_mode {
282 TRANSMISSION_MODE_2K,
283 TRANSMISSION_MODE_8K,
284 TRANSMISSION_MODE_AUTO,
285 TRANSMISSION_MODE_4K,
286 TRANSMISSION_MODE_1K,
287 TRANSMISSION_MODE_16K,
288 TRANSMISSION_MODE_32K,
289} fe_transmit_mode_t;
290</programlisting>
291
292 <para>Notes:</para>
293 <para>1) ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called
294 'mode' in the standard: Mode 1 is 2K, mode 2 is 4K, mode 3 is 8K</para>
295
296 <para>2) If <constant>DTV_TRANSMISSION_MODE</constant> is set the <constant>TRANSMISSION_MODE_AUTO</constant> the
297 hardware will try to find the correct FFT-size (if capable) and will
298 use TMCC to fill in the missing parameters.</para>
299 <para>3) DVB-T specifies 2K and 8K as valid sizes.</para>
300 <para>4) DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.</para>
301 </section>
302
303 <section id="DTV_GUARD_INTERVAL">
304 <title><constant>DTV_GUARD_INTERVAL</constant></title>
305
306 <para>Possible values are:</para>
307<programlisting>
308typedef enum fe_guard_interval {
309 GUARD_INTERVAL_1_32,
310 GUARD_INTERVAL_1_16,
311 GUARD_INTERVAL_1_8,
312 GUARD_INTERVAL_1_4,
313 GUARD_INTERVAL_AUTO,
314 GUARD_INTERVAL_1_128,
315 GUARD_INTERVAL_19_128,
316 GUARD_INTERVAL_19_256,
317} fe_guard_interval_t;
318</programlisting>
319
320 <para>Notes:</para>
321 <para>1) If <constant>DTV_GUARD_INTERVAL</constant> is set the <constant>GUARD_INTERVAL_AUTO</constant> the hardware will
322 try to find the correct guard interval (if capable) and will use TMCC to fill
323 in the missing parameters.</para>
324 <para>2) Intervals 1/128, 19/128 and 19/256 are used only for DVB-T2 at present</para>
325 </section>
326</section>
327
4<section id="isdbt"> 328<section id="isdbt">
5 <title>ISDB-T frontend</title> 329 <title>ISDB-T frontend</title>
6 <para>This section describes shortly what are the possible parameters in the Linux 330 <para>This section describes shortly what are the possible parameters in the Linux
@@ -32,73 +356,6 @@
32 356
33 <para>Parameters used by ISDB-T and ISDB-Tsb.</para> 357 <para>Parameters used by ISDB-T and ISDB-Tsb.</para>
34 358
35 <section id="isdbt-parms">
36 <title>Parameters that are common with DVB-T and ATSC</title>
37
38 <section id="isdbt-freq">
39 <title><constant>DTV_FREQUENCY</constant></title>
40
41 <para>Central frequency of the channel.</para>
42
43 <para>For ISDB-T the channels are usally transmitted with an offset of 143kHz. E.g. a
44 valid frequncy could be 474143 kHz. The stepping is bound to the bandwidth of
45 the channel which is 6MHz.</para>
46
47 <para>As in ISDB-Tsb the channel consists of only one or three segments the
48 frequency step is 429kHz, 3*429 respectively. As for ISDB-T the
49 central frequency of the channel is expected.</para>
50 </section>
51
52 <section id="isdbt-bw">
53 <title><constant>DTV_BANDWIDTH_HZ</constant> (optional)</title>
54
55 <para>Possible values:</para>
56
57 <para>For ISDB-T it should be always 6000000Hz (6MHz)</para>
58 <para>For ISDB-Tsb it can vary depending on the number of connected segments</para>
59
60 <para>Note: Hardware specific values might be given here, but standard
61 applications should not bother to set a value to this field as
62 standard demods are ignoring it anyway.</para>
63
64 <para>Bandwidth in ISDB-T is fixed (6MHz) or can be easily derived from
65 other parameters (DTV_ISDBT_SB_SEGMENT_IDX,
66 DTV_ISDBT_SB_SEGMENT_COUNT).</para>
67 </section>
68
69 <section id="isdbt-delivery-sys">
70 <title><constant>DTV_DELIVERY_SYSTEM</constant></title>
71
72 <para>Possible values: <constant>SYS_ISDBT</constant></para>
73 </section>
74
75 <section id="isdbt-tx-mode">
76 <title><constant>DTV_TRANSMISSION_MODE</constant></title>
77
78 <para>ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called
79 'mode' in the standard: Mode 1 is 2K, mode 2 is 4K, mode 3 is 8K</para>
80
81 <para>Possible values: <constant>TRANSMISSION_MODE_2K</constant>, <constant>TRANSMISSION_MODE_8K</constant>,
82 <constant>TRANSMISSION_MODE_AUTO</constant>, <constant>TRANSMISSION_MODE_4K</constant></para>
83
84 <para>If <constant>DTV_TRANSMISSION_MODE</constant> is set the <constant>TRANSMISSION_MODE_AUTO</constant> the
85 hardware will try to find the correct FFT-size (if capable) and will
86 use TMCC to fill in the missing parameters.</para>
87
88 <para><constant>TRANSMISSION_MODE_4K</constant> is added at the same time as the other new parameters.</para>
89 </section>
90
91 <section id="isdbt-guard-interval">
92 <title><constant>DTV_GUARD_INTERVAL</constant></title>
93
94 <para>Possible values: <constant>GUARD_INTERVAL_1_32</constant>, <constant>GUARD_INTERVAL_1_16</constant>, <constant>GUARD_INTERVAL_1_8</constant>,
95 <constant>GUARD_INTERVAL_1_4</constant>, <constant>GUARD_INTERVAL_AUTO</constant></para>
96
97 <para>If <constant>DTV_GUARD_INTERVAL</constant> is set the <constant>GUARD_INTERVAL_AUTO</constant> the hardware will
98 try to find the correct guard interval (if capable) and will use TMCC to fill
99 in the missing parameters.</para>
100 </section>
101 </section>
102 <section id="isdbt-new-parms"> 359 <section id="isdbt-new-parms">
103 <title>ISDB-T only parameters</title> 360 <title>ISDB-T only parameters</title>
104 361
@@ -314,5 +571,20 @@
314 </section> 571 </section>
315 </section> 572 </section>
316 </section> 573 </section>
574 <section id="dvbt2-params">
575 <title>DVB-T2 parameters</title>
576
577 <para>This section covers parameters that apply only to the DVB-T2 delivery method. DVB-T2
578 support is currently in the early stages development so expect this section to grow
579 and become more detailed with time.</para>
580
581 <section id="dvbt2-plp-id">
582 <title><constant>DTV_DVBT2_PLP_ID</constant></title>
583
584 <para>DVB-T2 supports Physical Layer Pipes (PLP) to allow transmission of
585 many data types via a single multiplex. The API will soon support this
586 at which point this section will be expanded.</para>
587 </section>
588 </section>
317</section> 589</section>
318</section> 590</section>
diff --git a/Documentation/DocBook/dvb/frontend.h.xml b/Documentation/DocBook/dvb/frontend.h.xml
index d08e0d401418..d792f789ad3b 100644
--- a/Documentation/DocBook/dvb/frontend.h.xml
+++ b/Documentation/DocBook/dvb/frontend.h.xml
@@ -176,14 +176,20 @@ typedef enum fe_transmit_mode {
176 TRANSMISSION_MODE_2K, 176 TRANSMISSION_MODE_2K,
177 TRANSMISSION_MODE_8K, 177 TRANSMISSION_MODE_8K,
178 TRANSMISSION_MODE_AUTO, 178 TRANSMISSION_MODE_AUTO,
179 TRANSMISSION_MODE_4K 179 TRANSMISSION_MODE_4K,
180 TRANSMISSION_MODE_1K,
181 TRANSMISSION_MODE_16K,
182 TRANSMISSION_MODE_32K,
180} fe_transmit_mode_t; 183} fe_transmit_mode_t;
181 184
182typedef enum fe_bandwidth { 185typedef enum fe_bandwidth {
183 BANDWIDTH_8_MHZ, 186 BANDWIDTH_8_MHZ,
184 BANDWIDTH_7_MHZ, 187 BANDWIDTH_7_MHZ,
185 BANDWIDTH_6_MHZ, 188 BANDWIDTH_6_MHZ,
186 BANDWIDTH_AUTO 189 BANDWIDTH_AUTO,
190 BANDWIDTH_5_MHZ,
191 BANDWIDTH_10_MHZ,
192 BANDWIDTH_1_712_MHZ,
187} fe_bandwidth_t; 193} fe_bandwidth_t;
188 194
189 195
@@ -192,7 +198,10 @@ typedef enum fe_guard_interval {
192 GUARD_INTERVAL_1_16, 198 GUARD_INTERVAL_1_16,
193 GUARD_INTERVAL_1_8, 199 GUARD_INTERVAL_1_8,
194 GUARD_INTERVAL_1_4, 200 GUARD_INTERVAL_1_4,
195 GUARD_INTERVAL_AUTO 201 GUARD_INTERVAL_AUTO,
202 GUARD_INTERVAL_1_128,
203 GUARD_INTERVAL_19_128,
204 GUARD_INTERVAL_19_256,
196} fe_guard_interval_t; 205} fe_guard_interval_t;
197 206
198 207
@@ -306,7 +315,9 @@ struct dvb_frontend_event {
306 315
307#define DTV_ISDBS_TS_ID 42 316#define DTV_ISDBS_TS_ID 42
308 317
309#define DTV_MAX_COMMAND DTV_ISDBS_TS_ID 318#define DTV_DVBT2_PLP_ID 43
319
320#define DTV_MAX_COMMAND DTV_DVBT2_PLP_ID
310 321
311typedef enum fe_pilot { 322typedef enum fe_pilot {
312 PILOT_ON, 323 PILOT_ON,
@@ -338,6 +349,7 @@ typedef enum fe_delivery_system {
338 SYS_DMBTH, 349 SYS_DMBTH,
339 SYS_CMMB, 350 SYS_CMMB,
340 SYS_DAB, 351 SYS_DAB,
352 SYS_DVBT2,
341} fe_delivery_system_t; 353} fe_delivery_system_t;
342 354
343struct dtv_cmds_h { 355struct dtv_cmds_h {
diff --git a/Documentation/DocBook/dvb/frontend.xml b/Documentation/DocBook/dvb/frontend.xml
index 78d756de5906..60c6976fb311 100644
--- a/Documentation/DocBook/dvb/frontend.xml
+++ b/Documentation/DocBook/dvb/frontend.xml
@@ -139,7 +139,7 @@ consistently to the DiSEqC commands as described in the DiSEqC spec.</para>
139<section id="frontend_sec_tone"> 139<section id="frontend_sec_tone">
140<title>SEC continuous tone</title> 140<title>SEC continuous tone</title>
141 141
142<para>The continous 22KHz tone is usually used with non-DiSEqC capable LNBs to switch the 142<para>The continuous 22KHz tone is usually used with non-DiSEqC capable LNBs to switch the
143high/low band of a dual-band LNB. When using DiSEqC epuipment this voltage has to 143high/low band of a dual-band LNB. When using DiSEqC epuipment this voltage has to
144be switched consistently to the DiSEqC commands as described in the DiSEqC 144be switched consistently to the DiSEqC commands as described in the DiSEqC
145spec.</para> 145spec.</para>
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-18 02:45:57 -0400