No Signal on Horizontal Transponders

 

Silver Member
Username: Krishn

Post Number: 165
Registered: Sep-06
On satellites connected to port 1 and 4 of DisEqc switch, getting signal only on vertical transponders and no signal on any horizontal transponders

However port 2 and 3 has signal on both Horizontal and vertical transponders.

Is it due to bad DisEqc switch or some other problem?
 

Silver Member
Username: Lomna

Post Number: 295
Registered: Dec-07
do you get signal from both tps when not using any switch ???
 

Silver Member
Username: Krishn

Post Number: 166
Registered: Sep-06
Have not tried it since I do not have a long cable or small TV to test it outside
 

Silver Member
Username: Lomna

Post Number: 296
Registered: Dec-07
It is highly likely that it is the signal from the sat and not the switch causing this.By the way what sat giving you the trouble and where you located ?
 

Silver Member
Username: Krishn

Post Number: 167
Registered: Sep-06
Thanks Devin.

Replaced the DisEqc switch to Cheita from original Coo*lsat and it is working. Also a loose connection on one of the LNB's as well
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3093
Registered: Oct-06
Yor switch is fine
Something else is wrong

If yor switch is bad yo won't get any signal V or H
I bet yo got a short or improper wiring due to use of splitter or other short type

Anytime yo short polarity is exactly what happens no Horizontal only Vertical
That's a short my friend not a bad switch
Yo'll change yor switch yo'll get the same problem

If yo list me all yor hardware
I'll get yo up and runing in few seconds
List no stories
LNBs, dish, switch receivers, cables, etc.
Snap and seal coax connectors are the way to go
Proper cramping is required
Simple short problems create big problems
 

Silver Member
Username: Krishn

Post Number: 168
Registered: Sep-06
Thanks for the offer King it is up and going now.

It was a bad switch anyway and probably it was a short that was solved by replacing some cables whose metallic ends had broken.

However did fry a DisEqc switch, even though I had powered off the receiver and even unplugged it, wonder how?

2 receivers connected to two DisEqc switches, one port on CB2008 dual LNB on 33" for 188.8/119 and three Calamp dual LNB on three 18" DTV dish - the other receiver was powered on which fired the other DisEqc switch.

Dual LNB's when powered on by one receiver just broadcasts the signal on both outputs and it does not confine its output only for the receiver from which the request originated.

This is true for CB2008A and CalAmp dual output LNB's, may be there are dual output LNB's that do not broadcast, but that is not the case with these two dual output LNB's.

However it is possible to mix and match - watch Horizontal transponder one one receiver and Vertical transponder on the other receiver and vice versa.

Please let me know if there are any dual output LNB's that restricts its output to the receiver that originated it?

Can you build you own cables with snap and seal coax connectors - any idea how much the equipment costs?
 

Silver Member
Username: Krishn

Post Number: 169
Registered: Sep-06
King are u there?
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3096
Registered: Oct-06
If yor up and runing then problem is solved yo don't need me
I still think yo had a short applied on 2 receivers due to some splitting coax or short coax due to bad crimp or use of splitter etc.

I have no idea what yor talking about here:
"This is true for CB2008A and CalAmp dual output LNB's, may be there are dual output LNB's that do not broadcast, but that is not the case with these two dual output LNB's."

"Please let me know if there are any dual output LNB's that restricts its output to the receiver that originated it?"


Upload
One of the most important factors in any type of installations is WIRING.
I advice anyone Armature or Professional to use Good wiring.

RG-6 Quad Shield is the way to go:
RG-6 double shield is OK too
- There are so many different Coax cables Rg-58,59 etc.
- There is also RG-6 double shield as well as quad shield.
- Quad shield is only 5 or 10 cents more per foot.
IT IS WHAT I RECOMMEND.
- Will other cables work? yes they will.
- RG-6 Best proven product in the market today.
Very little or no DB loss.
Great for up to 150 feet before your DISEqC Switch

- Compression connectors, snap and seal.
Great weather resistant. Less problems
- Ground your metal coupler or DISEqC switches etc.
- Your connection will last yo 50 years good for all weather condirions.


Sold at home depo
Or e-bay satellite e-store etc.
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3097
Registered: Oct-06
If yo look under RG6 on e-bay
There are hundreds of listings
Check this one $40:
However
I'm not too crazy about brass connectors

Also check amazon.com
http://cgi.ebay.com/COMPRESSION-COAX-RG6-CONNECTOR-CRIMP-CRIMPER-F-BNC-RCA_W0QQi temZ160264470632QQihZ006QQcategoryZ4693QQcmdZViewItemQQ_trksidZp1742.m153.l1262
 

Silver Member
Username: Krishn

Post Number: 170
Registered: Sep-06
Let me try another shot at explaining my problem. Nalin or any one knowledgable can chip in.

Problem description more simple terms:

Setup:
i) Two independent FTA receivers in different rooms, each connected to a DisEqc switch.

ii) Port 1 of both the DisEqc switches are connected by coaxial cable to the individual output of the common CB2008A dual output LNB sitting on a 33" Fortec Star dish aimed at 118.7/119

iii) Port 2 of both the DisEqc switches are connected by coaxial cable to the individual output of the common Calamp dual output LNB sitting on a 18" dish Direct TV dish aimed at 110

Problem description:
Possible to simultaneously view any two channels on both receivers as long as the channel is from port 1. Any combination of Horizontal or Vertical or 118.7 or 119 is fine.

When either one receiver is on port 1 viewing any channels on 118.7/119, it is impossible to view any channels on 110 on the other receiver, the signal quality on 110 is zero with no signal message

Now just turn off the receiver that was on 118.7/119, the signal quality on the other receiver for 110 is back to 97%.

Diagnostic Hypothesis:
When one receiver is on 118.7/119, the signal from the CB2008A LNB is not sent only to the DisEqc switch/receiver from which it was requested, the signal is sent to both the DisEqc switches/ receivers.

Now the dish specification for the 33 inch dish is: KU -- Band Gain @12.5 GHz
38.24 dB. The DisEqc switch specification is Isolation: >25dB. Probably it is the limit.

This seems to be the logical explanation of the problem. I have read other places also that dual output LNB's do send signals on both outputs, unless it is overridden by a request for signal from the other port also.

Possible solution:
i) Replace the CB2008A, with another Dual output LNB that does not send signal back to both DisEqC
or
ii) find a DisEqc switch that has isolation around 40dB
or
iii) Place the Calamp aimed at 110 on a bracket next to CB2008A aimed at 118.7/119 on the same 33" dish

Please let me know what option would be best to try?
 

Platinum Member
Username: Nydas

Post Number: 11256
Registered: Jun-06
Subash and King: I read about this kind of problem in a forum of converted fortecs or Pansats in ftatalk.com
When I get a chance i will look for it again. It is more to do with voltage drop as far as i remember and not particularly to LNB type used.
 

Bronze Member
Username: Meisha

Post Number: 18
Registered: Aug-05
Do you have two Diseqc switch,, I hope you know that if you have 2 receivers you will need two diseqc switch
 

Gold Member
Username: Plymouth

Quebec city, Quebec Canada

Post Number: 2927
Registered: Jan-08
Meisha for two receiver you need LNBs with 2 output and 1 diseq switch hook for each output one switch for each receivers or you can buy 2 switch with high and low voltage like this one:

http://www.sadoun.com/Sat/Products/Channel-Master/6254IFD%20ChannelMaster%20Mult iswitch4%20copy.jpg

Your ploblem is the because 2 receivers give high voltage on LNB
Horizontal signal 13 volts
Vertical signal 18 volts

If you get on 2 receivers 2 channels on horizontal thats OK but if one of two is on Vertical you lost signal on the other because you give high voltage on LNB

I hope that help you to understand
 

Gold Member
Username: Plymouth

Quebec city, Quebec Canada

Post Number: 2928
Registered: Jan-08
Thi is the good way to connect 2 receiver

http://sadoun.com/Sat/Installation/Multi-LNBF/2-receiver-4-lnbfs.htm
 

Silver Member
Username: Krishn

Post Number: 171
Registered: Sep-06
Thanks Plymouth. What you are saying makes sense if two receivers are daisy chained - taking IF output from one receiver and feeding to the another receiver

However two independent receivers connected to two different DisEqc should not cause this problem, unless the Dual output LNB's sends signals to both DisEqc switch not just one DisEqC switch.

As I mentioned earlier in the thread,I did fry a DisEqc switch, since I had not powered off the other receiver and the other receiver was switched on
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3098
Registered: Oct-06
Subash
Yor possible solutions are irrelevant to this problem

Like I always say
Simple short problem can act like a big complicated problem

Best solution is to stay with the basics
I was hoping yo list yor hardware and antenna settings
I don't know what brand of receiver yo are using

Yo got a short my friend
It's a short!!! no doubt wiring short
And usually it's operator's error

I asked for receiver's name cuz on some Pansats if capacitor C-1 and C-2 bad it can act like a short

Make sure yo go from LNBF out to LNB in of yor receiver
Make sure it's NOT going To LOOP OUT
It sounds like yo got LOOP out somewhere on yor wiring
I'm almost willing to bet LOOP OUT is being used

It's hard to know yor wiring I'm not with yo
Anything possible

Upload

Why don't yo start with few basics:
RECEIVER ONE
- 118/119
to port-1
- assign (antenna setting) DISEqC port-1

RECEIVER TWO
- 110
to port-2
- assign (antenna setting) DISEqC port-2
- Check to see if it works properly
- Then add 110 to receiver-1
- Check to see if it works properly
- Then add 118/119 to receiver-2

Everytime yo change coax Power must be off to avoid burning internal coil of DISEqC switch


No need to get frustrated
I assure yo if everything is wired correctly there will be no conflict the V&H conflict is due to a short
To find the short is a step by step
process of elimination

Feel free to ask any question
When it gets to hardware There is nothing I can't handle
 

Silver Member
Username: Krishn

Post Number: 172
Registered: Sep-06
King:

Sorry not good at diagrams thats why did not post one.

Your diagram is accurate - details to be added:
119 is CB2008A on 33"
110 is Calamp dual on 18" DTV dish
RCV-1 Pansat 2700A
RCV-2 Sonicview 360 Elite.

Yes - answer a fundamental electrical engineering question. RCV-1 is on 119, is the signal being sent to just RCV-1 or to both RCV-1 and RCV-2?

Probably Nalin was mentioning this post?
[link removed]
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3100
Registered: Oct-06
Simple details to be added
Yo can treat 118/119 as one satellite assigned to port-1

Look
One advice I'll give yo
Yo follow my post#3098 and yo'll find the problem in seconds
Don't confuse yorself by listening to more than one person in yor situation
Yo got a short
It's that simple

Did yo at least look at back of yor receiver to see if yo are going to LOOP OUT instead of LNB IN?
 

Silver Member
Username: Krishn

Post Number: 173
Registered: Sep-06
It is LNB IN and not LOOP OUT.
Agreed 118/119 is in in fact dual band LNB so it is just one sat.

Still need to find out the answer to the fundamental electrical engineering question - do you know the answer?
 

Silver Member
Username: Krishn

Post Number: 174
Registered: Sep-06
King:

How do you go about checking for short?
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3102
Registered: Oct-06
"answer a fundamental electrical engineering question. RCV-1 is on 119, is the signal being sent to just RCV-1 or to both RCV-1 and RCV-2?"

- Coming In to receiver LNB in is either 13V or 18V
- 13V is Vertical 18V is horizontal polarity
- Voltage decides specific polarity
- When 13V and 18V applied at same time 18V over-rides for Horizontal
- When either polarity is selected signal comes from LNB to receiver
- LNB has to outlets
- One goes to receiver-1 other goes to receiver-2
- 2 signals out of LNB goes to 2 receivers
LNB splits signal using internal logic gate
So as long as yo got connection from LNB to receiver-X that receiver-X will expect to get connection of both V&H

IF Only H is on
There must be bridge over-rides

Yo got a short somehow
Due to signal split
18V bridge
Or soemthing faulty
Possible Pansat 2700 has something to do with that short
Bad bin can do that too
Also possible LNB is got internal short
Anything possible

Do what I advised yo above
This is how to find the smoking gun
118/119 to rcvr-1
110 to rcvr-2 (test for problems)
If yo do find problems no need to go further
If no problems found continue on

Then add 110 to rcvr-1 (test for problems)
No problems then continue on
Then add 119 to rcvr-2 (test for problems)

Basic idea is to add one satellite at a time
This is what I would do to find smoking gun



So to answer yor question
If there is a connection there is an expected signal
No connection means no signal
 

New member
Username: Jay_w_grayson

Prague, Oklahoma USA

Post Number: 3
Registered: Jul-08
Subash
Silver Member
Username: Krishn

Post Number: 174
Registered: Sep-06
Posted on Monday, July 28, 2008 - 01:10 pm:

--------------------------------------------------------------------------------
King:

How do you go about checking for short?

A simple question just answer the man.
If you know, we don't need all that hog wash.
How do you go about checking for short?
 

Platinum Member
Username: Nydas

Post Number: 11258
Registered: Jun-06
Subhash: I reread the ftatak post.
The 118.7 sat does not give as strong a signal as the Echo 7.
If you added an amplifier it might solve the problem
 

Bronze Member
Username: Rvm

Post Number: 74
Registered: Mar-08
how do you fix short in the box? I guess I have the same problem.
 

Silver Member
Username: Lroy

Post Number: 409
Registered: Aug-06
What is the purpose of using two diseq switches in the above mentioned thread instead of using one?
 

Silver Member
Username: Lroy

Post Number: 410
Registered: Aug-06
Disregard my previous post.....
 

Gold Member
Username: Plymouth

Quebec city, Quebec Canada

Post Number: 2959
Registered: Jan-08
Iroy
You can use only one, but you need many input with 13 volts and 18 volts, one for each LNBs.
It,s less expensive to buy 2 switchs
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3105
Registered: Oct-06
Short yo got may not be as simple as yo think Jeff
50% internal short on Pansat 2700
Other 50% faulty cables or crossed cables or LNBF not switching

Something stuck at 14V
14V parallel with 18V produce 18V junction
Making V pol not to trigger

It's up to Subash to follow my procedure or giveup
 

Silver Member
Username: Krishn

Post Number: 175
Registered: Sep-06
King:

I did follow your procedure,it answered the question I was asking about Dual LNB's broadcasting or sending signal only to the receiver that is requesting it.

Please not all are Dual LNB's and two independent DisEqc

Receiver 1
----------
118.7 & 119
DisEqc: Port 1
LNB Power: on

Receiver 2
----------
118.7 & 119
DisEqc: Port 1
LNB Power: on

If Receiver 1 has H channel on 119 any H or V channel is available for 119 on Receiver 2

If Receiver 1 has V channel on 119 any V or H channel is available for 119 on Receiver 2

So goes the myth about not being able to view combination of H and V channels on different receivers

and more interestingly:

Receiver 1
----------
118.7 & 119
DisEqc: Port 1
LNB Power: on

110
DisEqc - Port 2
LNB Power: on

Receiver 2
----------
118.7 & 119
DisEqc: off
LNB Power: off

110
DisEqc - Port 2
LNB Power: on

All channels say no signal for 110 on Receiver 2 and the more interesting part is - if Receiver 1 has H channel on 119, any H channel on 119 is available in Receiver 2 and any V channel is no signal.

Very similar behavior if Receiver 1 has V channel 119 - any V channel is available on Receiver 2 on 119.

Note that it does not matter even if the DisEqc is off at port 1 on Receiver 2, the signal is still coming in to the DisEqc from the LNB and on to the receiver itself.

So the questions are very simple:
(i) Dual LNB is sending signals on both coax to the two DisEqc even though the request is coming from just one coax. It it a faulty LNB or Dual LNB design itself?

(ii) DisEqc is not blocking the unsolicited signal coming in at Port 1, it is passing it on through the coax to the receiver - faulty DisEqc or DisEqc design itself?
 

Gold Member
Username: Plymouth

Quebec city, Quebec Canada

Post Number: 2964
Registered: Jan-08
Subash
Give me info on this CB2008A LNB with 2 output

2 outputs one for 118.7 and one for 119 or 1 output each for both?
 

Gold Member
Username: Plymouth

Quebec city, Quebec Canada

Post Number: 2965
Registered: Jan-08
Subash
You can not connect 2 receivers on this LNB

I read spec. and it seems to be one out for 118.7 and one out for 119 thats the ploblem.
That mix the voltage thats why you cannot select Vertical and Horizontal.
Try to connect this LNB on 1 Diseq switch only and give me reply.
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3106
Registered: Oct-06
Yor dual LNB should have 2 independent outlets
118/119 is considered one orbital location thru 1-LNB
i.e. treated as one satellite
2 frequency scans
2 outputs 4 possible combinations
- V&V
- V&H
- H&V
- H&H
The combination should be independent no matter which receiver is going to
Same with DISEqC
2 independent switches selectable by rcvr
(4-selectable inputs to 1-output)

I do see the part yo say DISEqC is off but signal still coming to receiver

I strongly believe yo got a short on yor Pansat 2700
To confirm this the only way to do so is try a completely different working FTA receiver other than pansat

If it turns out Pansat problem which I'm NOW 70% certain
It will most likely be 1, 2 or even 3 bad capacitors
The other 2 possibilities Poor wiring or wrong setup or both
I don't like to rule out any possibility
What I don't think is DISEqC switch

Also a possibilty yor pansat damaged DISEqC switch
So it doesn't matter how many DISEqc switch yo snap
Yor search is to find the source of the problem not the effect
Yo might be dealing with 2 problems now
Not just one

Good Luck
 

New member
Username: Fakeman1

Germantown, Maryland USA

Post Number: 8
Registered: Jul-08
Subash King Tapeman says Good Luck
if you listen to him you will need it.
He knows nothing about FTA
He only knows about PTA
 

Silver Member
Username: Krishn

Post Number: 177
Registered: Sep-06
Plymouth:
It is band stacked for 118.7 and 119 and both 118.7 & 119 is available on either reciever. Problem is signal interfrence on 110. Here are the CB2008A specs:
http://www.worldwidesatellites.com/catalog/product_info.php?products_id=250&osCs id=0c6eee7e79100651a56007c9c07a
 

Gold Member
Username: Plymouth

Quebec city, Quebec Canada

Post Number: 2977
Registered: Jan-08
Subash
OK this LNB have 2 output with each output for both 119 and 118.7, thats the good one.

Your problem is OK or not?
 

Silver Member
Username: Krishn

Post Number: 178
Registered: Sep-06
Plymouth:

Too many things have been talked in this thread, should have started a new thread.

The current problem stated briefly is dual LNB's on different dishes (one CB2008A on 33" and others Calamp dual LNB on 18") are connected to two DisEqc switches.

(i) When either one recv is switched off, all dishes are OK on other recv.

(ii) Any combination of dishes can be viewed at the same time on both recv as long as big dish which has CB2008A is not used on both recv

(iii) Moment CB2008A is used on either recv, then only CB2008A can be viewed on other recv, any other dish is no signal on other recv.

Please read this post above:
https://www.ecoustics.com/cgi-bin/bbs/show.pl?tpc=2&post=1591670#POST1591670
 

Gold Member
Username: Plymouth

Quebec city, Quebec Canada

Post Number: 2981
Registered: Jan-08
Subash
I have a dish with motor but i think you need to setup Legacy Switch on "Sw21" on each receiver, because 2 signals come from each output.Need to set to port 1 on each receiver too.
That what i see on spec of CB2008A LNB
 

Silver Member
Username: Krishn

Post Number: 179
Registered: Sep-06
Plymouth:

You might be right, dual LNB's and two DisEqc's may not be the right solution for viewing two different channels originating from different sat at the same time.

Need to get better knowledge of DisEqc, was reading that DisEqC 1.0 just receives commands and responds with signals. No confirmation sent back regarding sat communication success or failure etc.
 

Gold Member
Username: Plymouth

Quebec city, Quebec Canada

Post Number: 2982
Registered: Jan-08
Subash
You need the 2 diseq switch each on port 1, but in sat setup set legacy switch on SW21 for select 119 and 118.7, these 2 have 2 different freq.

If you dont assign this the receiver select it by default, not what we want.

Good luck
 

Gold Member
Username: Plymouth

Quebec city, Quebec Canada

Post Number: 2983
Registered: Jan-08
You hook as King post 3098 on this thread and select sw21 dish 1 for 119 and sw21 dish 2 for 118.7 on legacy SW.
If they dont work select sw21 for 118.7 and sw21 dish 2 for 119
 

Silver Member
Username: Krishn

Post Number: 180
Registered: Sep-06
Plymouth:

If I understand your setup correctly an additional LNB is needed for 119 and use CB2008A for only 118.7 so that two rec's can be connected.

Since CB2008A is band stacked or "Dual output LNB with Dual polarization". Only two outputs come out one for each receiver.

Are you suggesting to connect SW21 output to DisEqc port1?

As long as it blocks unsolicited input which is causing signal interference it is fine.

What about having all other DisEqc on 22Khz off and CB2008A on 22kHz on - will that block unsolicited signal?
 

Gold Member
Username: Plymouth

Quebec city, Quebec Canada

Post Number: 2984
Registered: Jan-08
Subash

No you dont need additional LNB
CB2008A is Legacy switch built-in
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3112
Registered: Oct-06
No Plymouh/Sabash
I wouldn't touch SW21 at all

He's got a short
Great chance coming from P-2700
Like I said try a differnet working FTA reciver other than Pansat
Process of elemination
To rule out one possibilty at a time

I don't have that LNB CB2008A
But I strngly believe it is a working dual LNB
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3113
Registered: Oct-06
Actually I do have a theory
I do think the 2700 is yor smoking gun
What's hapening here is
118 requires a Universal LNB with Ku =Lo settings
119 requires a Single/Universal with Ku=High settings

I do think yor 2700 is not capable to support both KuHi/KuLo at same settings
This is why I'm asking to change 2700

Yor LNB is fine

A technical problem like this could of been dtected much erlier if yo would of posted yor detailed settings this should include LNB selection/frq Frequency by LNB is known as internal clock freq

Yor 2700 is so outdated it may not be able to support two freq spans

I still can't rule out a simple capacitor short
But if would simply follow my steps when I told yo
Yo could of detected it much earlier

Replace yor 2700
List yor detailed settings
Come back and thank me
King
 

Gold Member
Username: Plymouth

Quebec city, Quebec Canada

Post Number: 2986
Registered: Jan-08
King look at spec:

http://www.worldwidesatellites.com/catalog/product_info.php?products_id=250&osCs id=0c6eee7e79100651a56007c9c07a

This LNB have 2 outputs and in built Legacy sw.

You cant selected 118.7 and 119 in same time, because this 2 sats use different Freq., you need to use Legacy switch.
 

Silver Member
Username: Krishn

Post Number: 181
Registered: Sep-06
Plymouth/King:

There is no problem with 118.7 and 119 at the same in rcvr1 and rcvr2. Only problem is with one rcvr on 118.7 or 119 and other rcvr on 110.

rcvr1 rcvr2
----- -----
118.7 118.7 ok
119 119 ok
118.7 119 ok
119 118.7 ok

118.7 110 no (110)
119 110 no (110)
110 118.7 no (110)
110 119 no (110)
 

Gold Member
Username: Plymouth

Quebec city, Quebec Canada

Post Number: 2992
Registered: Jan-08
Subash
Can you give us a diagram of your installation and all setup on each receiver and each sats.

I know it's a laborious work, but that can be easy for us to found the problem
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3114
Registered: Oct-06
Well
If that's the case
Yor 110 is not working in conjunction with anything

Sabash
Yo said yo only get a problem when 118 is on
Yor settings are wrong
Yor details are incomplete
In addition to that yo might of blown another DISEqC on top

Isn't this considered 110 not working???
 

Silver Member
Username: Luser

Post Number: 320
Registered: Nov-07
If you do your own cable ends you could have a single wire fiber or groung foil at a connector causing voltage drop wich is needed for tp change 13v - 18v.
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3115
Registered: Oct-06
I think he got 2 problems not just one
P-2700 LNB freq conflict causing all kinds of short
Plus now most likely damaged port-2 on DISEqC that has 110W

P-2500 and P-2700 should be completely phased out of PTA
 

Silver Member
Username: Krishn

Post Number: 182
Registered: Sep-06
King:

Not sure if one can get 97% quality for 110, when other rcv is not on 119, if port 2 is damaged. May be you are right and I am wrong on this one?
 

Silver Member
Username: Krishn

Post Number: 183
Registered: Sep-06
After some reading about DisEqc version 1.0 it appears that DisEqc is not really a switch, since it does not establish a circuit connection with an LNB and then tear it down.

All it does is just fork power from rec to alternate destination points - LNB's, send power and receive the signals back from the LNB's

This explains the interference, since a stronger signal is coming back from the LNB from a bigger dish - since the other rec has powered it on, causing interference for a weaker signal coming from a smaller dish.

The next point of exploration is dual output LNB's. Are there any dual LNB's that restricts returning the signal to only the output from which signal was requested or all dual output LNB's return signal to both output points?
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3128
Registered: Oct-06
DISEqC is a 4-input to one output switch
It is a switch controlled by yor antenna port selection
The DC is another passive 2 input to 1-output switch
2-input is for V&H

So it is 2 types of switches
4-input high frequency AC switch
2 input DC voltage switch
All together like 8 to 1 switch
 

Silver Member
Username: Krishn

Post Number: 186
Registered: Sep-06
King:

You are right, however the issue is it one and only one input at a time or does it permit more than one input concurrently.

In strict definition Switch does provide one input only at a time by establishing a dedicated temporary connection for the duration and tears it down when not needed.

In a true switch, if the rec has requested a signal from port 2, then only signal originating from LNB that is on port 2 can make its way to the coax that is connected to the rec. Any signal that is coming in from any other point - port 1, port 3 or port 4 cannot come in to the coax.

The DisEqc does not work as stated above, it does not block signals coming in from other ports - port 1, port 3 or port 4.

Please let me know if I am not correct?
 

New member
Username: Edd

Post Number: 8
Registered: Nov-07
how to find 148 west signal?
 

New member
Username: Edd

Post Number: 10
Registered: Nov-07
how to find 148 west signal?
 

Platinum Member
Username: Nydas

Post Number: 11302
Registered: Jun-06
ED KA: Please start your own thread. This thread has nothing to do with your problems
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3130
Registered: Oct-06
I did tell yo to try another receiver other than P-2700
The P-2700 is what's causing all kinds of trouble
Also possibly yo shot yor second D-switch
 

Silver Member
Username: Krishn

Post Number: 187
Registered: Sep-06
Yes will give it a try, since other available Cool*trash 5000 comes to life, hopefully not dead for ever
 

Gold Member
Username: Tapeman

New York City in-HD, NY

Post Number: 3136
Registered: Oct-06
Yo mean cool*Suck 5K
I don't know why they got support for 6100 and not 6000, 5000, 4000

Try to buy or borrow VU-sat they are so cheap now
Once yo try another receiver many unsolved questions will be finally answered

2 brands to keep away
Cool*Suck and Pan*Crap
 

Silver Member
Username: Krishn

Post Number: 188
Registered: Sep-06
I believe they did not protect the Hardware for 4000, 5000, and 6000 and it was cloned, hence they could not generate clone killers
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