Banda C

Antena cea mare (2.2M) e ready acum pentru banda C...
Primele teste le-am facut la 43.1'W - Intelsat 11 este un satelit destul de greu de receptionat cu 2.2M desi spotul pare ok pentru Europa (emisa insa e slaba pe multe tp-uri )
Din pacate, 98% dintre canalele acestui satelit sunt codate... pacat deoarece multe sunt din Mexic, chiar de la mama lor

Iata mai jos cateva din testele de semnal si lista scanata

Edited by rz, 24 March 2012 - 22:59.

Aici se afla pachetul dth Sky Brazil dar in banda ku!

Corect... dar trebuie precizat ca e doar pe spotul de America Latina - practic imposibil de receptionat la noi chiar si cu antene de 3.7M - 4.5M!

In banda C insa e transmise simultana, atat pe Europa cat si pe America Latina

Edited by rz, 24 March 2012 - 23:44.

LNB Panorama model:ER861

de curand am intrat in posesia unui lnb in banda C de care sa scris multe pe  forumuri  de specialitate internationale
este un lnb cu dubla polarizare ,semnalul de zgomont este de 13K, iar fabricantul este sun-create
urmeaza sa-l testez ,iar in limita timpului disponibil am sa postez  impresile,observatile,receptia pe diversi sateliti si polarizari in banda C
[ http://i56.photobucket.com/albums/g171/bonou12/DSCF3510.jpg - Pentru incarcare in pagina (embed) Click aici ]
[ http://i56.photobucket.com/albums/g171/bonou12/DSCF3512.jpg - Pentru incarcare in pagina (embed) Click aici ]
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prima poza lnb GI-321
a doua poza lnb Panorama ER861

asteptam testele facute dar si poze!

un pasionat din UK @Kveys   a realizat aceasta placuta si afirma ca a crescut semnalul cu circa 2-3% polarizarea liniara pe  doi sateliti aflati pe pozitia 66E-83E
-fara aceste placute nu se receptioneaza semnal
aici aveti pozele si textul in original:
[ http://i56.photobucket.com/albums/g171/bonou12/C-band%20plate%20dielectric/post-391032-0-96093800-1361009128_thumb_zps992cfd03.jpg - Pentru incarcare in pagina (embed) Click aici ]    [ http://i56.photobucket.com/albums/g171/bonou12/C-band%20plate%20dielectric/post-391032-0-00379900-1361009144_thumb_zpsd943e7da.jpg - Pentru incarcare in pagina (embed) Click aici ] [ http://i56.photobucket.com/albums/g171/bonou12/C-band%20plate%20dielectric/post-391032-0-06760800-1361009165_thumb_zps3c1b0064.jpg - Pentru incarcare in pagina (embed) Click aici ]
Little bit different subject BUT, I found out funny matter today. I made/cut thin plastic "lid" and put it Lnb. Now it give 2-3% better signals from Linear channels 66E-83E. Circular ones weakening clearly identifiable 10% or more when using normal dielectric plate (TM 5402 signal meter). Now first time picture for e.g 66E 3894H. Without that plastic no picture.

Is it something with crosspolarity or ??
(on pictures white one only testpiece)
Thinking first that everyone say I´m crazy or something
But yes, some channels got better signals than ever. 2-3% not much but enough for some needs. That 66E 3894H need 74% signal (TM 5402) to give picture. Earlier 70-72% and freezy pic sometimes. Why they use 8PSK in C-band
But my "new channel" 76.5E Indonesian MNC Int. go down 5% (60% -> 55%). Some other channels less signal also but about 60% got little bit more. Thaicom 78.5 some freqs first time over 70%.[

de curand am achizitionat un lnb ESX241  in banda C  din USA
pretul fiind 31 euro cu taxele postale incluse ,timp de livrare patru zile lucratoare pe ruta USA-SPAIN (nu sa platit vama pur si simplu a fost ridicat de la oficiul postal)
inainte de toate am rasfoit/citit aproximativ toate articolele  scrise despre acest lnb
faptul ce ma determinat a fost factorul de zgomot al acestui lnb care este de 13K
in urmatoarele zile voi face teste de receptie si comparatie cu un alt lnb (panorama er-861)cu acelasi factor de zgomot 13K
tin sa mentionez ca la ora actuala lnb panorama er-861 este cel mai bun/sensibil lnb  testat de mine  deocamdata
pozele reale cu acest lnb respectiv esx241:
[ http://i56.photobucket.com/albums/g171/bonou12/lnb%20model-ESX241/DSCF4044_zpsab7ff058.jpg - Pentru incarcare in pagina (embed) Click aici ]
[ http://i56.photobucket.com/albums/g171/bonou12/lnb%20model-ESX241/DSCF4046_zps604dfaa8.jpg - Pentru incarcare in pagina (embed) Click aici ]
[ http://i56.photobucket.com/albums/g171/bonou12/lnb%20model-ESX241/DSCF4050_zpsf0e3efc8.jpg - Pentru incarcare in pagina (embed) Click aici ]
[ http://i56.photobucket.com/albums/g171/bonou12/lnb%20model-ESX241/DSCF4053_zpscf4928e4.jpg - Pentru incarcare in pagina (embed) Click aici ]
[ http://i56.photobucket.com/albums/g171/bonou12/lnb%20model-ESX241/DSCF4055_zps6ead993b.jpg - Pentru incarcare in pagina (embed) Click aici ]
[ http://i56.photobucket.com/albums/g171/bonou12/lnb%20model-ESX241/DSCF4067_zpsba750121.jpg - Pentru incarcare in pagina (embed) Click aici ]
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am pus lnb pe antena si am avut surpriza  sa constat urmatoarele:
cu aparatul de masura satlook  gaseam doar 2-3 frecvente pe satelitul nss-806-40,5w cu lnb zinwell,dreamsat,intersat,bsc 621-2d
cu acest lnb respectiv ESX241 satlook reuseste sa gaseasca noua frecvente
receptioneaza si reda unele frecvente care au pragul de semnal mai scazut decat altele
la lnb  folosite anterior placuta magica a fost plasata la 45 de grade intre sonde
la lnb esx421 cu placuta pozitionata la 45 de grade intre sonde nu receptionez nimic in schimb daca placuta este dispusa deasupra sondelor receptionez toate frecventele
deocamdata este prematur sa ma pronunt asupra lnb urmeaza sa mai testez si pe alti sateliti/frecvente
diametrul interior ESX421 este de 63 mm
diametrul interior panorama er-861  este de 58  mm


[ http://i56.photobucket.com/albums/g171/bonou12/lnb%20model-ESX241/DSCF4076_zps60688416.jpg - Pentru incarcare in pagina (embed) Click aici ]
[ http://i56.photobucket.com/albums/g171/bonou12/lnb%20model-ESX241/DSCF4082_zps84af5749.jpg - Pentru incarcare in pagina (embed) Click aici ]
[ http://i56.photobucket.com/albums/g171/bonou12/lnb%20model-ESX241/DSCF4086_zpscea17d5b.jpg - Pentru incarcare in pagina (embed) Click aici ]

Salut... ai folosit placuta din pachet ?
Daca vrei rezultate mai bune, iti recomand placutele mele... au fost testate chiar pe NSS 40.5'W (plus Yamal 90'E) si au dat rezultate mult mai bune decat acele placute asa zis originale cu care au venit lnb-urile de banda C

@rz
desigur ca folosesc numai si numai placutele tale in toate testele raportate pe forumuri de specialitate

Poti sa le si modifici... dimensiunile nu sunt batute in cuie!
De ex. daca dreptunghiurile de Al din laterale sunt mai apropiate unele de altele se obtin rezultate foarte bune (chiar spre extrem) insa numai intr-o anumita plaja de frecvente!
Daca este spatiu mai mare intre ele (ca in foto rosie) atunci se obtine o placuta depolarizatoare de banda larga, daca se poate spune asa

Salutare , la prima incercare atat am reusit , ce credeti sunt ceva sanse sa ajute la cresterea semnalului ?? Mersi

Salutare.
Am o antena de 90 cm pe care nu o mai folosesc, in stare foarte buna tabla + un motor h-h strong si ma gandeam sa ii pun un lnb banda C, am sanse sa receptionez ceva sateliti, la dimensiunea asta ?
Antena a fost folosita pentru Ku Band, am reusit sa receptionez chiar si 100.5 Est, cam la limita semnalul de cele mai multe ori, dar si'a facut treaba antena asta ...
Locatie, Bucuresti
Merci frumos

Edited by dreamquest, 31 October 2013 - 11:18.

Titanium Satellite C1PLL - World's First Phase Lock Loop C-band LNBF with the included Flat Scalar
http://titaniumsatel...cifications.pdf
[ https://www.youtube-nocookie.com/embed/GylIUN4ltJM?feature=oembed - Pentru incarcare in pagina (embed) Click aici ]
https://www.facebook...taniumSatellite

Interesant si de testat insa am impresia ca e mai mult marketing decat performanta... arata ca in reclamele/ambalajele alea de la asa zisele lnb-uri Ku band de ''0.1db'', ''compatibile HD''

a aparut un nou model de lnb in banda C al producatorului Titanium Satellite --Wideband Version (3.4 - 4.2Ghz)--
Coming next february , Version (C1W-PLL) from 3.4 - 4.2GHz available
C1-PLL C-band LNBF Single
Interntional Customers: Wideband Version (3.4 - 4.2Ghz) Available February 2014
The C1-PLL Phase Lock Loop C-band LNBF technology provides exceptional reception of weak satellite signals and the most demanding high FEC S2 channels. Designed to meet the requirements for light commercial applications and the most demanding satellite hobbyist, it is cost-effective, high quality and professional grade. The C1-PLL polarity is voltage switched for receiving horizontal / vertical linear or right / left circular (with the included dielectric slab). It includes a flat scaler designed for prime focus dish types and fits the industry standard 68mm scalar mounts and the optional Titanium conical scalar for offset type dishes.
Regular LNBFs typically last only five to seven years. DRO type LNBFs lose performance over time as the mechanically tuned frequency slowly drifts until one day, the receiver is no longer capable of tuning the satellite channels. PLL LNBFs do not rely on a mechanical tuning slug that may shift off frequency due to physical damage or aging. PLL LNBFs have a crystal oscillator that will remain tuned exactly on frequency. The C1-PLL frequency is +/-50KHz and typically the operational drift to be within +/- 10KHz.
The heavy aluminum casting, snow white poly coating and cooling fins assist with keeping the C1PLL operational temperature low and running cool. These thermal control features increase the C1-PLL performance and stability, insuring many years of reliable service.
Titanium Satellite provides a Lifetime Warranty on the C1PLL against frequency drift! If you are not completely satisfied with the performance of the Titanium C1PLL, we will promptly refund your purchase!

PLL-KS1 Specifications
RF Input--------- 3.7 - 4.2GHz
IF Output------- 950 - 1450MHz
L.O. Frequency-- 5150MHz
Noise Figure----- 15°K (typical)
Gain------------ 65dB (typical)
Stability--------- 50KHz (typical)
Cross Pol Iso---- 20dB (typical)
Image Rejection- 45dB (typical)
Phase Noise---- -85dBc@10KHz (min)
Polarity Switch-- V: 11.5 - 14vdc
H:-------------- 16 - 20vdc
Input VSWR----- 2.1:1 (max)
Output VSWR---- 2.0:1 (max)
Operation Temp-- -22 to 140°F
Storage Temp--- -40 to 160°F
acest lnb este util in special pentru receptia satelitului Thaicom 5/6A @ 78.5° East
unde frecventele incep de la 3408 V 4444 3/4
ramane de vazut care este sensibilitatea la semnale slabe DX

Abia astept sa vina primavara... sa vad ce mai e prin banda C si daca se confirma asa zisul bruiaj venit de la reteaua WiMAX 2K Telecom (cea mai apropiata antena 2K fata de mine se afla la aprox.7-8Km)
In mod normal, nu ar trebui sa captez ''paraziti'' de la ei, cu antena si lnb-ul de banda C