Bad signal strenght on the west

[mikelo]

Re: Bad signal strenght on the west

^

I've also a noname dish and 7.2db reach without pushing the dish. When I push the dish, signal decreases.

@zoran89

Did you conduct test with fixed or motorized 80 cm dish?

[zoran89]

Re: Bad signal strenght on the west

With motorised dish, you could say on what channal and what transponder you have 7.2db so I can try.

[satman72]

Re: Bad signal strenght on the west

^

I've also a noname dish and 7.2db reach without pushing the dish. When I push the dish, signal decreases.

This means your motor is well mounted!

[mikelo]

Re: Bad signal strenght on the west

@zoran89

Here are some signal values for different transponders and satellites from 30º W to 53º E:

30º W

11577 V --- 6.00dB 11811 H --- 6.70dB 11931 V --- 6.60dB
11617 V --- 5.90dB 11811 V --- 7.20dB 12012 V --- 6.70dB
11771 V --- 7.20dB 11891 H --- 6.90dB 12092 V --- 6.70dB


15º W

12608 H --- 7.80dB


12.5º W

11174 H --- 5.20dB


13º E

11604 H --- 14.10dB


28.2º E

11261 H --- 8.40dB


53º E

11044 V --- 7.80dB


Weather was very cloudy.


Best regards.

[zoran89]

Re: Bad signal strenght on the west

Channels on 30w are more or less betwin 8.5db and 10.5db except dvb-s2 I use SS2 and I cant check it, but on 13e I see you have 14db and on that freqency I have 10db so it show that you have better dish but I have more signal on 30w so it show that your motor is not well setup.

[satman72]

Re: Bad signal strenght on the west

There is also another problem on 30 West, most of transponders on european beams are transmitted on same frequencies but in V and H, for example freq. 12012 on hispasat is used by two transponders, one in vertical other on horizontal, so is really important your LNB's skew, I suggest you to do this, store into your receiver the two transponders on 12,012 Ghz (you can check details here _http://www.lyngsat.com/hispa.html), then check the signal on vertical and rotate a bit the LNB into his case and check if signal increase, then do the same checking on horizontal tp and try to find a good compromise on both polarity.

[zoran89]

Re: Bad signal strenght on the west

He have motorised system so motor skew LNB automaticly.

[peremacedonia]

Re: Bad signal strenght on the west

once before years i have the same problem becouse i mont antena myself
after hours searching to net i find o''to my location and set alligment
Then finaly i have good signal from 30w to 42e

[satman72]

Re: Bad signal strenght on the west

He have motorised system so motor skew LNB automaticly.

LNB's skew is not controlled by the motor ( the motor moves the dish not the LNB), if a satellite is far from your central satellite you need to adjust also LNB position expecially if those has low signal, if you've had an old motorized system you should to remember they was equipped with magnetic or mechanic polarizer, and receivers has had pol skew adjustment for each satellite received. In case of satellites that have same frequencies on opposite polarities (like Hispasat), this assumes (the LNB skew) a foundamental role in reception.

[zoran89]

Re: Bad signal strenght on the west

LNB's skew is not controlled by the motor ( the motor moves the dish not the LNB), if a satellite is far from your central satellite you need to adjust also LNB position expecially if those has low signal, if you've had an old motorized system you should to remember they was equipped with magnetic or mechanic polarizer, and receivers has had pol skew adjustment for each satellite received. In case of satellites that have same frequencies on opposite polarities (like Hispasat), this assumes (the LNB skew) a foundamental role in reception.

Go to someone who have motor and see how dish look like when it is rotated by the motor.

Motor rotates the dish at the same time as it turns the dish so the angle of LNB is skewed automatically as the dish turns to face the satellite.

http://img59.imageshack.us/img59/7598/68470253.jpg

[satman72]

Re: Bad signal strenght on the west

I've 2 motorized dishes, an old one with actuator and one with stab motor, trust me on most external satellites skew should be adjusted a bit. The tilt given by motor is not enough most of times.

[zoran89]

Re: Bad signal strenght on the west

No if motor is setup corectly then skew must be perfectly adjust, I know how to explain but not on english.

[mikelo]

Re: Bad signal strenght on the west

@zoran89

I'm sure, the pole is perfectly straight, my location latitude on the motor is set properly and I selected right satellite as my reference. The town I'm living in is approximately 100 km away from your location, and it maybe the reason that I've less signal strength on Hispasat than you.

[kasper17]

Re: Bad signal strenght on the west

I'm still wondering which is the best dish to receive all the satellites with a good signal in my area for example !!??
I'm talking about the measure !!

[stewie]

Re: Bad signal strenght on the west

Well you can't receive all satellites with normal equipment but a 210cm prime focus dish would do the work to receive most of the transponders with low signal.