Poor signal on 1 frequency only - Techwatch: Satellite TV forums, FTA, Cable, Hardware, & Tech forums

npnicholson · 01-06-08, 08:10 PM

My wife uses our satellite set-up (80cm dish & Humax VA-FOX receiver) to watch Persian channels on Hotbird. Most channels are fine except for two on frequency 11642 (H, 27500, 3/4) where the signal quality fluctuates and the picture breaks up. Sometimes it's OK for 10 minutes or so. Other times it breaks up immediately. The weather doesn't seem to matter. I've changed the LNB and tried a different receiver but this didn't help. The signal strength is typically steady at about 75% but the signal quality fluctuates from 50-75%. The question is: how can we have a problem with only one frequency? Can anyone shed any light on this mystery?

Robbo · 01-06-08, 08:17 PM

Hi, It sounds like it may be interference from another source.

Try completely turning off your cordless phone to see if that improves it.

Robbo

satelliteman · 01-06-08, 08:24 PM

could also be microwave interference and that's not the 800w version

bigtee · 01-06-08, 08:45 PM

Most likely cordless phone.

npnicholson · 03-06-08, 01:30 PM

Quote:

Originally Posted by robbo71

Hi, It sounds like it may be interference from another source.

Try completely turning off your cordless phone to see if that improves it.

Robbo

Thanks for the suggestion. I'll give it a try.

SAT-WORLD · 07-06-08, 06:54 PM

Also remove the batteries from the handset,too.

npnicholson · 08-06-08, 02:31 PM

Sadly the cordless phone doesn't seem to make a difference. Interestingly (or rather perplexingly) the channel was perfect for a couple of days last week but is now back to the fluctuating signal quality and periodic picture break-up. This is independent of whether the cordless phones are on or not.

npnicholson · 08-06-08, 02:36 PM

I had an email saying that SAT-WORLD had posted a message but I can't see it on the forum? Anyway, the frequency is correct. The channel is SAT 7 Pars on Hotbird 6. See http://www.lyngsat.com/hb6.html

Robbo · 08-06-08, 02:36 PM

Are you sure the dish alignment is optimised. Worth giving that a check.

npnicholson · 08-06-08, 02:56 PM

The dish is motorised so it's quite easy to use the receiver to move it left/right and check the effect on the signal. And guess what: that doesn't help either!

01-06-08, 08:10 PM	#1 (permalink)
npnicholson Junior Member Join Date: Jun 2008 Posts: 5 Thanks: 1 Thanked 0 Times in 0 Posts	Poor signal on 1 frequency only My wife uses our satellite set-up (80cm dish & Humax VA-FOX receiver) to watch Persian channels on Hotbird. Most channels are fine except for two on frequency 11642 (H, 27500, 3/4) where the signal quality fluctuates and the picture breaks up. Sometimes it's OK for 10 minutes or so. Other times it breaks up immediately. The weather doesn't seem to matter. I've changed the LNB and tried a different receiver but this didn't help. The signal strength is typically steady at about 75% but the signal quality fluctuates from 50-75%. The question is: how can we have a problem with only one frequency? Can anyone shed any light on this mystery?

01-06-08, 08:17 PM	#2 (permalink)
Robbo Super Moderator Join Date: Jul 2007 Location: Kent Posts: 5,026 Thanks: 27 Thanked 473 Times in 456 Posts	Re: Poor signal on 1 frequency only Hi, It sounds like it may be interference from another source. Try completely turning off your cordless phone to see if that improves it. Robbo __________________ كيبل اعضاء البلهاء TM6800,TM1000D.Triax TD110 on STABHH-90 motor.Orbital 1m on Moteck motor+2 x minidishes DigitAlb movie package. Electronics Engineer and satellite installer.

01-06-08, 08:24 PM	#3 (permalink)
satelliteman Senior Member Join Date: Feb 2008 Posts: 209 Thanks: 0 Thanked 48 Times in 36 Posts	Re: Poor signal on 1 frequency only could also be microwave interference and that's not the 800w version

01-06-08, 08:45 PM	#4 (permalink)
bigtee Senior Member Join Date: Oct 2006 Location: Kent Posts: 467 Thanks: 8 Thanked 44 Times in 44 Posts	Re: Poor signal on 1 frequency only Most likely cordless phone. __________________ Raven 90 multi lnb 1w, 7, 9, 13, 16, 19 & 28e; 1m Orbital on SG 2100 5e-34w; TM1500s, Fortec 5400, Phoenix Apollo & Kathrein (analogue) Receivers

07-06-08, 06:54 PM	#6 (permalink)
SAT-WORLD Senior Member Join Date: May 2006 Posts: 1,674 Thanks: 3 Thanked 71 Times in 68 Posts	Re: Poor signal on 1 frequency only Also remove the batteries from the handset,too. Last edited by SAT-WORLD; 07-06-08 at 07:38 PM.


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08-06-08, 02:31 PM	#7 (permalink)
npnicholson Junior Member Join Date: Jun 2008 Posts: 5 Thanks: 1 Thanked 0 Times in 0 Posts	Re: Poor signal on 1 frequency only Sadly the cordless phone doesn't seem to make a difference. Interestingly (or rather perplexingly) the channel was perfect for a couple of days last week but is now back to the fluctuating signal quality and periodic picture break-up. This is independent of whether the cordless phones are on or not.

08-06-08, 02:36 PM	#8 (permalink)
npnicholson Junior Member Join Date: Jun 2008 Posts: 5 Thanks: 1 Thanked 0 Times in 0 Posts	Re: Poor signal on 1 frequency only I had an email saying that SAT-WORLD had posted a message but I can't see it on the forum? Anyway, the frequency is correct. The channel is SAT 7 Pars on Hotbird 6. See http://www.lyngsat.com/hb6.html

08-06-08, 02:36 PM	#9 (permalink)
Robbo Super Moderator Join Date: Jul 2007 Location: Kent Posts: 5,026 Thanks: 27 Thanked 473 Times in 456 Posts	Re: Poor signal on 1 frequency only Are you sure the dish alignment is optimised. Worth giving that a check. __________________ كيبل اعضاء البلهاء TM6800,TM1000D.Triax TD110 on STABHH-90 motor.Orbital 1m on Moteck motor+2 x minidishes DigitAlb movie package. Electronics Engineer and satellite installer.

08-06-08, 02:56 PM	#10 (permalink)
npnicholson Junior Member Join Date: Jun 2008 Posts: 5 Thanks: 1 Thanked 0 Times in 0 Posts	Re: Poor signal on 1 frequency only The dish is motorised so it's quite easy to use the receiver to move it left/right and check the effect on the signal. And guess what: that doesn't help either!

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