| מידע נוסף |
- נועד לחיבור מספר רב של עניות LNB
- אין להעתיק דף זה לאתרי אינטרנט אחרים אלה רק לשמוש עצמי הפרת זכות יוצרים
- בממיר הלווין בפקודת ה - LNB יש לפתוח את תוכנת הדייזק 1.2 כמו פקודת המנוע
- ולתת את הפקודות לכל יציאה של הדייזק
- לכל יציאה במפצל מחברים את LNB לא משנה סדר הלווינים אבל רצוי לפי סדר מיזרח מערב סתם זיכרון
- תרגום בעברית לנושא בהמשך
- בממיר טופילד יש שתי שורות פקודה דייזק העליונה 1.1ואו 1.2 אותם יש להפעיל בשימוש בפקודה לחיבור 8 הלווינים
- בשורה השניה מיספרים מ 1 ועד 4
- כנל בדייזק של ה 8 יש סדר מסויים לחיבור העניות ואתה קובע היכן למקמם כ 1&4 הם A ו 5&8 הם B
- במידה ואתה רואה את הלווינים השונים הפקודה היא הנכונה לא ראיתה אתה לא בתדר עברתה ללווין אחר וחזרתה לראשון ואינך רואה כבה את המכשיר והדלק
- ניתן בדייזק של 8 לשלב אנטנה רגילה כמו FM DVB-T UHF ראה כניסה ניפרדת
- בחיבור נכון ניתן לתת למספר דיירים בצלחת 120 8 לווינים ל 8 דיירים ואו 8 ממירים כיוונים מדוייקים של עניות יתנו אכויות קליטה
- מנוע דייזק נותן אפשארות ליותר קליטה של לווינים מתאים לממיר אחד והפקודה להוזזת המנוע היא בהתאם החיבור על כבל ה - RG 6
- יש מפצל דייזק כולל 12 וולט כניסה מהממיר בחלק האחורי לפקודה A 0 וולט B 12 וולט והחיבור ל 2 דייזק של 4 רגילים מצריך ירידה נוספת
- יש מפצל של 8 מוגן מים
- והמפצל שבתמונה יש למגנם בעטיפה נגד רטיבות למנוע בעיות במחברים השונים
- ראה בהמשך הסבר על דייזק של 8 פקודות של יצרנים שונים בממירים האחרים
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Theory - Satellite Receiving Systems
The idea to use a man-made satellite for communications first appeared at the end of World War II. British mathematician and sci-fi author Arthur C. Clarke proposed to put a communication satellite on a geostationary orbit at a height of 36000 km above the equator from where it can reach up to 40% of the earth's surface, with television and radio signals which can be intercepted by countless receiving stations within such an area.
A satellite moving in a geostationary orbit above the equator turns around the earth's axis so that its speed perfectly matches that of the earth's rotation, and can cover the same part of the earth's surface with signals all the time. To observers on earth the satellite seems to be motionless at one particular spot in the sky. Such a satellite can replace thousands of local radio or TV transmitters.
Due to the gravitation forces of the Moon, Sun and the other celestial bodies the satellite slightly deviates from its ideal orbit so it is constantly necessary to make some corrections of its position by means of its engines controlled remotely from the earth's surface. To connect a TV studio on earth with a particular satellite on the geostationary orbit, an “uplink” antenna is used. It concentrates the radio waves and radiates them in the direction of the satellite.
Communication satellites use two sets of frequencies; one set is used to send TV programs or data up to the satellite, and the other for transmitting signals back to earth.
The satellite's dish antenna captures the signals incoming from earth and passes them into a receiver, where they are processed and transferred to the satellite transmitter, and, via the satellite antenna, sent back to the earth's surface. TV signals from the satellite are received on the earth's surface by dish antennas, but the signal strength differs on various parts of the surface. The satellite antenna radiates the signals in a particular pattern called a footprint, which covers a substantial area of the earth's surface. The signals are strongest at the centre of a satellite footprint and weakest at its edge. Receiving dish antennas at the outside of the footprint must have larger diameters than those at the centre.
Centimeter waves are mostly used for a satellite signal transmission, the frequency range is approx. 3 to 30 GHz. One of the reasons for using these short radio waves is the disturbing influence of cosmic noise for frequencies 1 GHz and lower. For frequencies over 15 GHz the signals are significantly weakened by water vapour in the atmosphere, and by oxygen molecules. Signals or waves of electromagnetic radiation sent from satellites on the orbit have certain permanent spatial orientation. Most frequently the radiation is linearly polarized, either vertically or horizontally. Some satellites also send polarized spiral pattern signals, with electromagnetic waves rotating around the radiation direction in either clockwise or counterclockwise direction.
Table shows the frequency bands used most frequently for satellite communication.
| Band |
Frequency range (GHz) |
| L |
1.0 - 2.0 |
| C |
3.6 - 6.5 |
| X |
7.25 - 8.4 |
| Ku |
10.7 - 18 |
| Ka |
18-105 |
Perhaps the most popular satellites designed for o direct satellite television are Hotbird (at 13.0 E from o Greenwich) and ASTRA (at 19.2 E), using the following frequencies in the Ku band for “downlink” transmission: 10700 MHz - 11700 MHz (so called low band) and 11700 MHz - 12750 MHz (high band). Analogue programmes are mainly transmitted in low band, and digitally coded programmes mainly in high band. As is well known, digital transmission enables compression of broadcast data and, in a given frequency band, it is possible to transfer substantially more TV and radio programmes compared to the classical analog method.
A typical satellite receiving system comprises a dish antenna that reflects the signal from a satellite to a focal point, which is located in front of the antenna. Just over this point is the so called “feedhorn” which captures the signals reflected by the dish and transfers them into another device, a low noise amplifier (LNA). In the LNA the incoming signals are amplified and sent to a down converter, where the incoming signal frequency is changed to an output frequency (so-called intermediate frequency) given by the difference between frequency of a local oscillator of the down converter and that of incoming signals.
The signals of the output intermediate frequency go from the down converter via a coaxial cable to the satellite receiver. The above described parts, i.e. the feedhorn, LNA and down converter, are usually integrated into one block called an LNB. Local oscillator frequencies of currently produced Ku band LNBs are usually based on the universal standard: 9.75 GHz for low band and 10.60 GHz for high band reception. The LNB comprises either one oscillator of 9750 MHz (with such an LNB it is possible to receive only low band signals) or two oscillators, the first of 9750 MHz and the second of 10600 MHz, this is a so called universal LNB that makes it possible to receive both high and low bands. Switching between polarization levels and frequency bands is done from the receiver. The polarization levels are controlled by a 13/17 V DC or by an appropriate DiSEqC command. Bands are controlled by an alternate 22 kHz signal superimposed to 13/17 V DC on the coaxial cable (of amplitude approx. 0.6 V) or by another DiSEqC command. The following Table 2 shows an overview of the main types of Ku band LNBs used on the market and their output frequency (IF), for frequency ranges of 10700-11700 MHz in the low band and 11700-12750 MHz in the high band.
| LNB type |
Number of outputs |
Outputs description |
Oscillator frequency |
Output IF |
| Single |
1 |
1. LB (V, H) |
9750 MHz |
950-1950 MHz |
| Single universal |
1 |
1. LB (V, H), HB (V, H) |
9750 MHz + 10600 MHz |
950-2150 MHz |
Dual |
2 |
1. LB (V) |
9750 MHz |
950-1950 MHz |
| 2. LB (H) |
9750 MHz |
950-1950 MHz |
Twin |
2 |
1. LB (V, H) |
9750 MHz |
950-2150 MHz |
| 1. LB (V, H) |
9750 MHz |
950-2150 MHz |
Twin Universal |
2 |
1. LB (V, H), HB (V, H) |
9750+10600 MHz |
950-2150 MHz |
| 2. LB (V, H), HB (V, H) |
9750+10600 MHz |
950-2150 MHz |
Quatro Universal |
4 |
1. LB (V) |
9750 MHz |
950-1950 MHz |
| 2. LB (H) |
9750 MHz |
950-1950 MHz |
| 3. HB (V) |
9750 MHz |
1100-2150 MHz |
| 4. HB (H) |
9750 MHz |
1100-2150 MHz |
Quadruple |
4 |
1. LB (V, H), HB (V, H) |
9750+10600 MHz |
950-2150 MHz |
| 2. LB (V, H), HB (V, H) |
9750+10600 MHz |
950-2150 MHz |
| 3. LB (V, H), HB (V, H) |
9750+10600 MHz |
950-2150 MHz |
| 4. LB (V, H), HB (V, H) |
9750+10600 MHz |
950-2150 MHz |
V- vertical polarization
H- horizontal polarization
LB- low band
HB- high band
LNBs marked with are suitable to be used with EMP-Centauri multi-switches.
A receiving system according to Fig. 2, where a single LNB is placed at the focal point, can only be used for reception of TV programmes on one satellite receiver, i.e. usually on one TV set. To connect two or more satellite receivers to one LNB i.e. to one dish antenna, it is necessary to use another LNB type and insert a device called a multi-switch between the LNB and the satellite receiver. LNB types suitable for use with multi-switches are marked with the symbol Q in Table 2. “Dual” and “Twin” LNBs are suitable for distributing low band channels, “Quatro Universal” must be used to distribute both low and high band channels.
All EMP-Centauri switches are usable for distribution of both analog and digital signals. If not stated otherwise all switches are produced for indoor use.For satellite reception of other than the Ku band an LNB for another band can be used, but output intermediate frequency signals must be in a frequency range of 950-2300 MHz.
Operation and utilization of multi-switches will be best explained using the following descriptions of EMP-Centauri products and examples of their application.
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© Copyright EMP-Centauri s.r.o. All rights reserved.
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P.168 V1 (S8/1PCNV1-3), P.168 V2 (S8/1PCNV2-3)
P.168 (S8/1PCN-3)
הוראות שימוש למתאם 168P
1. כללי
מתאם 168P הינו ממתג לווינים המיועד למתג בין עד ל – 8 לווינים ( LNBs ) . ניתן גם להשתמש בו בקונפיגורציות אחרות כגון: ממיתוג בין מולטיפלקסרים. מקלט הלווינים שבשימוש חייב לתמוך בפרוטוקול DiSEqC.
יש להתקין מתאם 168P במקום יבש . מתאם W169P ניתן להתקין בחוץ כאשר מעמידים אותו אנכית עם המחברים כלפי מטה. את חיבורי הכניסות והיציאות יש לחבר עם כבל קואקסילי 75 אום ( 6 RG ) עם מחברי F. אין לכופף את הכבלים ברדיוס הפחות מ – 5 ס"מ. הדק את מחברי ה – F היטב.
2. נתונים טכניים
תחום תדרים: Satellite Band (SAT) 950 – 2300 Mhz
ניחות : -5db typical
בידוד : -30 db typical
עוצמת LNB : -400 mA max
3. הוראות התקנה:
למתאם 168P יש 8 כניסות SAT 1-8 IN ויציאה אחת OUT המיועדת לחיבור למממיר . תיכנות הממיר משתנה בהתאם לסוג הממיר וגירסת פרוטוקול ה – DiSEqC שהוא תומך. עקוב אחרי הוראות התיכנות לממיר שברשותך.
לאחר חיבור הכבלים והפעלת הממיר ברירת המחדל היא DiSEqC 1.0 ומגיב רק לפקודות
“committed switch" . לאחר קליטת פקודת “uncommitted switch" המתג (מתאם 168P) ממשיך לעבוד במצב
DiSEqC 1.1 ומגיב רק לפקודה “committed switch" בלבד. אם המתג (מתאם 168P), לאחר הדלקתו, מגיב רק לפקודת מנוע, הוא מחיל לפעול במצב DiSEqC 1.2 ומגיב רק לפקודת מנוע . כדי לבטל מצב פעולה נוכחי ולחזור למצב ברירת המחדל, יש צורק לבצע אתחול של המתג (מתאם 168P).
א. תכנות בהתאם לפרוטוקול DiSEqC 1.0 (כל הוורסיות).
במצב זה יש אפשרות למתג 4 כניסות בלבד SAT 1 – 4 IN . בתפריט הקונפיגורציה של הממיר קבע את הערכים A עד D ( או 1 עד 4 )עבור כל LNB שמחובר לתוך השדות
DiSEqC A-D (1-4) “comitted switch”. ערכים עבור כניסות נפרדות נתונות להלן:
SAT 1 IN: DiSEqC 1 (A); SAT 2 IN: DiSEqC 2 (B); SAT 3 IN: DiSEqC 3 (B); SAT 4 IN: DiSEqC 4 (D) ;
ב. תכנות בהתאם לפרוטוקול DiSEqC 1.1 .
אם הממיר שברשותך תומך בפרוטוקול DiSEqC 1.1 תכנת את שדות הנתונים המתאימים למצב
“uncommitted switch" ו - “committed switch" עבור כל אחד מה –LNB בתפריט הקונפיקורציה. התכנות שונה עבור מתג V1 ו – V2.
SAT 1 IN: com 1 (A) uncom 1 (A) SAT 5 IN: com 1 (A) uncom 2 (B) SAT 1 IN uncom 1 SAT 5 IN uncom 5
SAT 2 IN: com 2 (B) uncom 1 (A) SAT 6 IN: com 2 (B) uncom 2 (B) SAT 2 IN uncom 2 SAT 6 IN uncom 6
SAT 3 IN: com 3 (C) uncom 1 (A) SAT 7 IN: com 3 (C) uncom 2 (B) SAT 3 IN uncom 3 SAT 7 IN uncom 7
SAT 4 IN: com 4 (D) uncom 1 (A) SAT 8 IN: com 4 (D) uncom 2 (B) SAT 4 IN uncom 4 SAT 8 IN uncom 8
ג. תכנות בהתאם לפרוטוקול DiSEqC 1.2 .(כל הגירסאות)
במידה והממיר שברשותך אינו תומך גירסת DiSEqC 1.1 אולם תומך גירסת DiSEqC 1.2 תיכנות הממיר יעשה כאילו היה לך מנוע DiSEqC . תבחר באחד מהלווינים המיועדים לקליטה בזמן שלחצן סיבוב המנוע לחוץ קבוע
(מזרח או מערב) עד שהאות המיועד מופיע בבהירות ואיכות מספקים. הרפה מיידית מהלחצן (סיבוב המנוע) ושמור את מיקום המנוע. חזור על החיפוש כפי שתואר לעיל עבור כל ה –LNB המחוברים.
ד. איתחול המתג (מתאם 168P).
אם המתג אינו מגיב לפקודות המקלט, אתחל את המתג על ידי כיבוי והדלקה של הממיר, או ניתוק וחיבור מחדש של הכבל המחבר בין המתג לממיר.
- 8in/1out switch designed for direct connection of up to 8 SAT IF inputs to one receiver. Inputs are selected by DiSEqC 1.2 command "Goto nn" (6B), or by protocol DiSEqC 1.1. Inputs 1 to 4 are selectable also by command "Write NO" (38), which makes the unit compatible with standard DiSEqC 4-input switching.
The unit is equipped with one of two software versions, V1 and V2. The difference between them lies in the way how DiSEqC 1.1 control is implemented. If You plan to use the switch in DiSEqC 1.1 mode, You must choose which version fits better to Your configuration. Please see "Receivers setting" section bellow for detailed information.
| Specifications of P.168 (S8/1PCN-3) |
| Number of Inputs |
8 |
| Number of Outputs |
1 |
| Frequency Range |
|
950-2300 MHz
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| Control |
|
DiSEqC 1.0, 1.1, 1.2 |
| Insertion Loss |
|
5 dB avg. |
| Isolation between Inputs |
|
30 dB avg. |
| Current Consumption |
|
50 mA |
| LNB Power |
|
400 mA max. |
| Dimensions (w,d,h [cm]) |
|
13.6 x 10.4 x 3.3 |
| Temperature range |
|
-30 °C - +70 °C |

- Examples Of Utilization:




P.168 / P.168-W Installation Instructions
1. Connection of cables
The switch P.168 includes 8 input connectors and 1 output connector. Coaxial cables from particular LNBs (satellite converters) shall be connected to input connectors (INP1 to INP8). It is advisable to note down assignment of the inputs. The output connector (OUT) shall be interconnected through a coaxial cable with a satellite receiver.
For a long-lasting operation of the switch it is advisable to use high-quality coaxial cables designed for frequencies up to approx. 2 GHz.
2. Receivers setting
The receiver setting method differs depending on the control mode of the system, and on the DiSEqC protocol version supported by the receiver.
A/ Setting according to DiSEqC 1.1 protocol
If a receiver supports DiSEqC 1.1 protocol, set correct data in the fields for "committed switch (DiSEqC)" and "uncommitted switch" for each of the connected LNBs in the configuration menu. Please choose one of the following tables according to the model of your switch, V1 or V2. If your product is not differentiated by V1 / V2, use labeling of input connectors: if first input (INP 1) is labeled "com A, uncom A", follow Table 1. If the first input (INP 1) is labeled "uncommitted switch 1", use instead Table 2.
Table 1: P.168 V1 / P.168-W V1
| Sat System A: |
committed A (1) |
uncommitted A (1) |
| Sat System B: |
committed B (2) |
uncommitted A (1) |
| Sat System C: |
committed C (3) |
uncommitted A (1) |
| Sat System D: |
committed D (4) |
uncommitted A (1) |
| Sat System E: |
committed A (1) |
uncommitted B (2) |
| Sat System F: |
committed B (2) |
uncommitted B (2) |
| Sat System G: |
committed C (3) |
uncommitted B (2) |
| Sat System H: |
committed D (4) |
uncommitted B (2) |
Table 2: P.168 V2 / P.168-W V2
| Sat System A: |
committed none |
uncommitted 1 |
| Sat System B: |
committed none |
uncommitted 2 |
| Sat System C: |
committed none |
uncommitted 3 |
| Sat System D: |
committed none |
uncommitted 4 |
| Sat System E: |
committed none |
uncommitted 5 |
| Sat System F: |
committed none |
uncommitted 6 |
| Sat System G: |
committed none |
uncommitted 7 |
| Sat System H: |
committed none |
uncommitted 8 |
B/ Setting according to DiSEqC 1.2 protocol
If a receiver does not support DiSEqC 1.1 version, but supports DiSEqC 1.2, receiver setting shall be carried out as if it has a DiSEqC motor. One of the satellites to be received shall be selected along with continuous holding of the push-button for motor rotation depressed (East or West) until the signal of respective satellite appears in a sufficient intensity and quality. Then stop the rotation immediately and save the found position. Repeat the search for all connected LNBs (all inputs)
C/ Setting according to DiSEqC 1.0 protocol
If a receiver only supports the basic version of DiSEqC standard, i.e. 1.0, then it is only possible to select the first four Sat Systems of the unit (Sat System A to Sat System D). In this case the receiver shall be set in the same way as for a common four-input DiSEqC relay, i.e. one of positions A, B, C, D, (1 to 4) shall be defined for each connected LNB.
D/ Switch reset
If the switch does not react to receiver commands, apply the reset of switch with turning the receiver off and on, or disconnecting the cable from receiver.
Switch must be reset whenever any of following DiSEqC mode control change should happen:
1.1 to 1.2
1.1 to 1.0
1.2 to 1.1
1.2 to 1.0
Note: The configuration procedures for particular receivers can differ. The instructions included in the operating manual of a receiver shall be followed. Dreambox users can find detailed instructions in our download page.
3. Known compatibility issues
Dreambox DM7025, DM800
Switches P.168 manufactured before 9/2008 and P.168-W manufactured before 6/2008: While switching, suspected short interrupts of LNB power cause reset of the switch and loss of reception. Switches are adapted since June 2008 (P.168-W) or September 2008 (P.168), older products can be modified in the factory (charged service), or by qualified user (instructions will be sent upon request).
Technisat Digit C (may apply also to other Technisat models)
DiSEqC 1.2: Idle time gap is inserted by the receiver while switching to other LNB. This prolonges switching time. (DiSEqC 1.1 is not supported by the receiver.)
Lemon 042 CI (may apply also to other Lemon models)
DiSEqC 1.2: After power-on the switch is not initialized by receiver. The switch stucks on input 1 until other satellite is required by the receiver. (DiSEqC 1.1 is not supported by the receiver.)
Profi_line_168.pdf
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