DoktorOfSat SETUP

doktorofsat

doktorofsat

Regular Member
Messages
222
My Satellite Setup
C BANDIT
My Location
QTH
Hello everybody!

My name is DoktorOfSat .I'm from Romania.I'm a moderator on the bigest forum from Ro on the satellite section :), very active also on the hungarian board and 2 german boards.I like very much this board too and I found many interesting info , so I decided to sign up here.You can read my reports on flysat too
After many years in Ku band(analog too) , this year I decided to "play" with C band too.
At the begining of summer I got a noname but very good quality Al 150 cm PFA dish with f/d ratio of 0,42 .My dish has a good homemade polarmount and a 18" HARL actuator(as in photo).I can receive satellites between 93,5East -22West with this system!I also like to make depolarizer plates for (L,R) in C band of course.During outdoor testing I use an HOHER portable DVD player with A/V in and a Kaon 570 receiver .In the photo you can see Ariana afgan television from 93,5East, outdoor picture!An MTI 15kelvin Cband LNB is my favourite now,after certain tests .
I upload some picture with the dish pointed on several satellites.My favourite C band sats are: 90E, 83E, 64E, 49E, 5W, 22W.
 

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Lazarus

Lazarus

Tout Rond Bon Oeuf
Staff member
Messages
25,418
My Satellite Setup
80cm Motorised.
Several small Dishes.
Much else.
My Location
North York Moors
Very interesting installation!

I am envious :-wow

And your English is excellent - I don't know even one word of Romanian :)
 
doktorofsat

doktorofsat

Regular Member
Messages
222
My Satellite Setup
C BANDIT
My Location
QTH
Tivù said:
Very interesting installation!

I am envious :-wow

And your English is excellent - I don't know even one word of Romanian :)
Thanks a lot Tivu.

The story of this dish is quite fascinating.A couple of months ago the dish was not motorised .I use it for the reception of Nilesat , a problematic sat here in the north of Ro .
After that , one day I decided to test the West Asia beam of Intelsat 904 .There are two good channels: Kanal 31 and Jetisu.But with no results at all.After that I tested 36E with very good results on the Russian beam (with circular polar L,R) got all the tp !!!After that I made the polarmount and I pointed the dish on Astra 28,2E.And I managed to get Astra 2D !!!:cool:

Stable reception in fine weather but no picture when the clouds appear.Further testing in rainy weather and I noticed that the signal is low but stable!So i can say that in my region the reception of astra 2d is possible with larger dishes 1,8m I think in almoust all weather conditions.I watch the channels for some day but I was not so impressed.
Here are the photos with the dish pointed on Astra 2d , pictures on the channels from it.I used an Inverto flange 0,3db LNB:)
 

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pipino

pipino

Regular Member
Messages
820
My Satellite Setup
2X Channel Master 1.20 , 1X Channel Master1.80 ,1X Channel Master 2.40, Motorized Gibertini OP150 , Motorized Fibo MF90 ,, 70cm eliptical raven ..hirschmann fibre glass 1.20m
My Location
Comunidad Valenciana..ESPAÑA
great stuff doktor ..welcome on board ;)
 
BombedOne

BombedOne

Regular Member
Messages
1,107
My Satellite Setup
Covering 30W-105.5E range, two motors, C and Ku band. Various receivers/cards/cams/etc.
My Location
Republic of Georgia
U just can add "tul", "oare", "ea" to any english word at end, and it'll become romanian :)

for example: "satelitul receptoare instalatea" :D

(Joke)
 
Analoguesat

Analoguesat

Administrator
Staff member
Messages
46,750
Location
Scottish Borders
My Satellite Setup
TM 5402HD
Skybox F3
Sky+ UK.
My Location
Scottish Borders
Any signals off Eutelsat W76 at 76E Doktor??


_http://www.flysat.com/eutelsatw76.php
 
doktorofsat

doktorofsat

Regular Member
Messages
222
My Satellite Setup
C BANDIT
My Location
QTH
Analoguesat said:
Any signals off Eutelsat W76 at 76E Doktor??


_http://www.flysat.com/eutelsatw76.php
NO signal, already checked

Analoguesat let's wait for an official coverage map of this bird
 
doktorofsat

doktorofsat

Regular Member
Messages
222
My Satellite Setup
C BANDIT
My Location
QTH
Here is my motorised (with Strong DM2100) OPTICUM 125 cm solid dish .I got satellites between 80East <<>> 34,5 West with this dish.

I tested a lot of LNB's but Laser Gold 0,3db proved to be the best for fringe receptions.I have a nice signal on 7W , but my very best receptions with this dish are from the east side.

1.The Middle East Spot 1 of Intelsat 902 @ 62 E 11555 v 27500 3/4 IRIB

2.The Spot 1 of Intelsat 702@ 66E Kazakhstan Aktau




http://www.flysat.com/is902.php
 

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doktorofsat

doktorofsat

Regular Member
Messages
222
My Satellite Setup
C BANDIT
My Location
QTH
Back again in C band problemo!!

I noticed that some users are interested in my dielectric plate for da C band

I upload a schematic of it.I recommend to use aluminium foil from chocolate .This proved to perform very well among other Al foils...

Use only transparent plastic , the 1 mm thick one is the best in my tests.Everything between 0,5-1MM is good:)
The width of the alu stripes must be 3,5-4mm .Please respect the dimensions :cool:

The distance betwwen stripes is 5-6mm The big stripes(3 on the center) 10mm width are very important for the reception.

You can modify a little bit the dimensions and notice signal increases on certain channels :)...Go further and put perpendiculary 1mm thick cooper wire spiral (4-5 little spirals) an the each side and you'll notice real frequency cuts and strong amplification one other freq.A lot of play with:-rofl2
 

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pipino

pipino

Regular Member
Messages
820
My Satellite Setup
2X Channel Master 1.20 , 1X Channel Master1.80 ,1X Channel Master 2.40, Motorized Gibertini OP150 , Motorized Fibo MF90 ,, 70cm eliptical raven ..hirschmann fibre glass 1.20m
My Location
Comunidad Valenciana..ESPAÑA
hi Doktor,

did you try AV-COMM waveguide??? i heard it performs even better then dialectric plates
 
pipino

pipino

Regular Member
Messages
820
My Satellite Setup
2X Channel Master 1.20 , 1X Channel Master1.80 ,1X Channel Master 2.40, Motorized Gibertini OP150 , Motorized Fibo MF90 ,, 70cm eliptical raven ..hirschmann fibre glass 1.20m
My Location
Comunidad Valenciana..ESPAÑA
please check this video about AV-comm ,sorry its in german but i think we can guess about the subject

_http://www.youtube.com/watch?v=QLBZdqQhul8
 
doktorofsat

doktorofsat

Regular Member
Messages
222
My Satellite Setup
C BANDIT
My Location
QTH
pipino said:
hi Doktor,

did you try AV-COMM waveguide??? i heard it performs even better then dialectric plates
Hello Pipino

Here in ro there are a few interested in C band and it's very hard2find a C band lnb too:eek:

not like in other countries like hungary , germany where are a lot of c bandits:)

AV-COMM waveguide oh my God ..see it on da german board and on youtube it's very expensive for me .The dialectric is very good pipino sometime amplify from 0 to 60-70% on my kaon:-applause
maybe in the future I 'll motorise it
 
pipino

pipino

Regular Member
Messages
820
My Satellite Setup
2X Channel Master 1.20 , 1X Channel Master1.80 ,1X Channel Master 2.40, Motorized Gibertini OP150 , Motorized Fibo MF90 ,, 70cm eliptical raven ..hirschmann fibre glass 1.20m
My Location
Comunidad Valenciana..ESPAÑA
its cheaper if you get it directly from australia as its made there,i was wondring if many ppl had greater improvement on prime focus dishes using this piece of kit???
 
doktorofsat

doktorofsat

Regular Member
Messages
222
My Satellite Setup
C BANDIT
My Location
QTH
pipino said:
its cheaper if you get it directly from australia as its made there,i was wondring if many ppl had greater improvement on prime focus dishes using this piece of kit???

pipino

my opinion is that the dish size (and it's f/d ratio) is the key for a better reception in C band :)

In the video the AV-COMM waveguide was on a offset dish.The offset dishes are not so good for C band .

I don't think AV-COMM waveguide performs better then my dielectric

pipino if you have a liitle speartime make a plate and tell us your opinion about
 
pipino

pipino

Regular Member
Messages
820
My Satellite Setup
2X Channel Master 1.20 , 1X Channel Master1.80 ,1X Channel Master 2.40, Motorized Gibertini OP150 , Motorized Fibo MF90 ,, 70cm eliptical raven ..hirschmann fibre glass 1.20m
My Location
Comunidad Valenciana..ESPAÑA
what is the technical base and reference of your hand made dialectric plate??
 
doktorofsat

doktorofsat

Regular Member
Messages
222
My Satellite Setup
C BANDIT
My Location
QTH
pipino said:
what is the technical base and reference of your hand made dialectric plate??
just try it pipino and I guaranty you'll never be dissapointed
 
LAURO2008

LAURO2008

Regular Member
Messages
236
My Satellite Setup
* Clarke Tech 5000 HD Combo Plus * Gibertini 104 cm * Invacom TNH-031 0.3dB * Diablo 2 + CAS 3 plus * motor GT SAT - DM15AT * 53°E - 58°W in USALS * Full HD LG Scarlet 42lg7000 * Western Digital HD TV Player Live *
My Location
NL+IT
Doktor,

I'm simply speechless!!!
 
Turok

Turok

Regular Member
Messages
2,237
My Satellite Setup
1,25 Fibostop
Jäger Smr 1224 &amp; Smo 36 Dual Axsis Motor
Dynasat F1
Monterey 140
Drembox 800
sky Pace HD Box
Tagra 2,20 M Fullsize Dish
Echostar 2,40m Mesh for cband!
My Location
Austria
the av polarizer needs a lot of adjustment,until it works good,i tested one 2 month ago on my other dish for cband irte 1,86m and it works very bad,this year i will install it on my 2,30mesh,on 68,5 it works good then!
the motor solution is very good,but not cheap with 350€ a friend in germany have bought this and confirmed me that he have good signal in the east on circular,but on linar ,signal is lower then without on the western satellite,currencly we dont know the reason!
how it looks,that this polareizer,only works good,when the adjsutment depent on the antenna type,is very exactly,if not,the performance on my irte 1,86m dish was lower then without,in the first test,very strange this!
polareizer is optimeized for the panorama 13 kelvin lnb,that is a little bit smaler in diameter ,then the other brands!

iam using transparent tevlon material instead on normal dialektrikum plate,the choclate story,with the silver paper i hear the first time,you simple cover,silver paper,around the exisiting plate,and then it works better?

can someone explain again the technical prinzip of av com polarizer?
why the signal is so much stronger,after the polarity change?
 
doktorofsat

doktorofsat

Regular Member
Messages
222
My Satellite Setup
C BANDIT
My Location
QTH
@Turok

I use the plate only for the satellites with with L and R tp's.For the others I use the c band lnb "as it is" without any plates.
In fact, the plate transforms the L and R into V and H , in other words :
L=V

R=H
It'a a foolish thing to use the plate for satellites with linear polarization Tp's:-rofl2 cause it reduce dramaticaly the signal'O'-red
I give you just example:

On 83 East (sat with linear polar tp) only the DY365 channel works with the plate .If i took off it , I got something like 70 Tv chanels:)

68,5 is a very strange bird (in C band) indeed.With my MTI I can't get so much channels as with Inverto (photo).The inverto has only one pin. That means this lnb can get only one polarization .In order to get the other you must turn it 90 degress.But only on 68,5E in a certain position it get H and V polar at the same time , very strange isn't it?:eek:



 

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Turok

Turok

Regular Member
Messages
2,237
My Satellite Setup
1,25 Fibostop
Jäger Smr 1224 &amp; Smo 36 Dual Axsis Motor
Dynasat F1
Monterey 140
Drembox 800
sky Pace HD Box
Tagra 2,20 M Fullsize Dish
Echostar 2,40m Mesh for cband!
My Location
Austria
hi!
the mti is now i very old lnb performance not so good,i use in the meantime the panorama 13 kelvin and on other dish a gardiner lnb from brazil with 12 celvin!
83 east i cant receive,satellite is behind the 2500 m high mauntain 68.5 east is my limit!
 
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