Maximizing quality by nudging the frequency

[carload]

I don't know what this means, but I thought I'd throw it out in case anyone else encounters it.

Recap: I have a Satwork 3618 and had been having trouble getting WVGN on AMC4. I manually entered a channel with WVGN's numbers, then was happily surprised to find it available a couple of weeks later. It was barely watchable, so I tweaked the dish for a small improvement.

Last night, I experimented with the transponder frequency setting on the channel. WVGN's listed at 11991, but I'd known my Satwork to be off by one or two on some other listings. After I plugged in each number, I waited until the quality reading settled down. Here's what I found:

11986: 0% quality on my Satwork
11987: 35%
11988: 35%
11989: 35%
11990: 34%
11991: 34%
11992: 35%
11993: 35%
11994: 35%
11995: 35%
11996: 0%

Although the acceptable frequency range was centered on 11991, that particular number gives me slightly worse quality than most of the other points in the range.

I changed my channel setting to from 11991 to 11992 and watched some Leno. WVGN still broke up at times, but to my eyes, it was noticeably improved.

Again, I don't know why this happened, but it suggests that adjusting frequencies may be a way to improve some channels on a Satwork.

(Note: I haven't tried this on any of the blind-scanned channels, which often come in with frequencies just a little different than those posted. I presume and hope that the blind scan process automatically chooses the frequency with the best quality.)

 

[Mr Tony]

another reason would be the LNBF...but this is real good to know!

I know when I scan AMC4, more often than not, it hits at 11990..but 11991 gives me the best quality

 

[drhydro]

I found on my satworks 3618 that to recieve any of the radio channels i had to input in all of the parameters manually, and that i had to adjust them +2 on the transponder and -31 on the symb rate, otherwise they would not come in. i figured this out by looking at what was blind scanned in for video, all of the channels where off by those values.

 

[ken2400]

Thanks for the info. When I get my 3618 going it will be nice to know.

I found on my satworks 3618 that to recieve any of the radio channels i had to input in all of the parameters manually, and that i had to adjust them +2 on the transponder and -31 on the symb rate, otherwise they would not come in. i figured this out by looking at what was blind scanned in for video, all of the channels where off by those values.

 

[Diamond Jim]

I pick up WVGN at 11990 with a 47% on a clouding day, which is exceptional.

 

[PipeDream]

Strange, WVGN on AMC 4 at 10750 works for me.
Maybe because I'm using a Standard LNB?

 

[Mr Tony]

are you sure that isnt your LO frequency and not the transponder?

 

[PipeDream]

are you sure that isnt your LO frequency and not the transponder?

Ha! Yeah, I guess that is my LNB freq. When I brought up my Signal box I notice WVGN Down Freq: 11990. Haven't quite found where to change that yet.