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cyberham
cyberham
Last reply · posted in Free To Air (FTA) Discussion

Why Do Satellite Receivers Scan as they Do?

I notice my Ali chip receivers like GT Media, GSP microHD, Openbox S9 always blind scan first horizontal transponders then followed by vertical transponders. Sometimes on a given satellite, they scan from lowest frequency to the highest frequency. But on other satellites, they scan from the highest frequency to the lowest. Why the difference in scan direction?

Whereas my Edision Mio+ receiver always scans vertical transponders first followed by horizontal transponders. As far as I know, it scans from lowest frequency to the highest.
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O
one_db_compression
Educated, simplified guess? SMOC. Simple Matter of Code. Someone programmed it this way.

More complex guess? It is dependent on the silicon and whether the scan is a big software routine (e.g. - code sets a frequency and iterates through a range) or it is hardware-supported (e.g. - code sets a range in the tuner and the tuner itself iterates through the range).

It is a bit like the turbo code discussion from a few months ago... there, the silicon definitely supports the encoding, but your particular driver doesn't have the logic to twiddle the registers and logic in order to enable the function. Additionally, different silicon will implement hardware-assisted routines with different levels of efficacy.

Long answer... if you know the specific tuner chip model and have the programming guide, you can look at a bunch of open source code to best understand how and why particular developers did what they did. More specifically, the design and programming errata documents for particular silicon and/or code is sometimes more enlightening because you are more apt to have disclosure of limitations and hardware and software bugs.

Source: 30 years ago, ago I was a board-level digital designer and programmer coming out of electrical engineering school.

Everyone else's mileage may vary.
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Titanium
Titanium
Basically, all is based on the preference of the coder. With that said....

If you are noting the scan direction to be related to the band (I.E. Ku and C), this is because satellite receivers tune an IF (Intermediate Frequency), but what you see displayed is a calculated downlink frequency (IF +/- the LO frequency). The satellite receiver scans in the same direction, but it appears to be swapped when the LO frequency is added or subtracted.

Example: on KU-Band, an IF of 950 + an LO of 10750 = 11700 MHz transponder frequency (low end of the band) The higher the IF, the higher the transponder frequency.

On C-Band, an IF of 950 - an LO of 5150 = 4200 MHz (high end of the band). The higher the IF, the lower the transponder frequency.
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cyberham
cyberham
Titanium said:
...If you are noting the scan direction to be related to the band (I.E. Ku and C)...

Example: on KU-Band, an IF of 950 + an LO of 10750 = 11700 MHz transponder frequency (low end of the band) The higher the IF, the higher the transponder frequency.

On C-Band, an IF of 950 - an LO of 5150 = 4200 MHz (high end of the band). The higher the IF, the lower the transponder frequency.
Click to expand...
I think this is what I'm seeing!
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Former member 209992
Former member 209992
Last reply · posted in SatelliteGuys Support Center

Site is slooooow

For some reason, the satelliteguys.us site is loading a lot slower than usual on both Chrome on my Asus laptop and Safari on my iPhone.
I'm also seeing longer appearances of the blue bar at the top and the "3 blue bars" loading symbol.
Is anyone else also having the same problem? Thanks in advance.
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Scott Greczkowski
Scott Greczkowski
Been using the site at that time and saw no issues. A quick look at the logs shows nothing strange.
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Foxbat
Foxbat
Yeah. It's probably something going on with the MacBook as my iPhone has been pretty snappy.
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Scott Greczkowski
Scott Greczkowski
I have been optimizing the site the past few days... and got us here now. :) We are rocking now!

Screenshot 2026-10-15 144737.webp
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Foxbat
Foxbat
Foxbat said:
Yeah. It's probably something going on with the MacBook as my iPhone has been pretty snappy.
Click to expand...
I rebooted my MacBook Air and it's zipping right along. Sorry, but it was taking over 20 seconds to load pages, with the pulsing blue bars so it was munching on something.
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Scott Greczkowski
Scott Greczkowski
Remember folks... just like DNS... its always Foxbat. :D
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dishstaller
dishstaller
Pub Member / Supporter Lifetime Supporter
Last reply · posted in Internet Television (IPTV) Discussion Forum

Hughesnet cancelling email addresses

Wasn't exactly sure where to post this. Just had a customer come in inquiring about internet. He has HughesNet and had heard good things about mine. He asked if we provided email addresses and it kinda caught me off guard. I said he should be able to keep whatever email he had been using....my sister in law is still using a BellSouth email addy and they haven't been around here for many years. He said he had gotten a letter from HughesNet stating that they had until Nov 16th to save, move, forward, whatever, their Hughesnet emails because they would lose them after that date.

I have never heard of a company simply mass-deleting email accounts (the customer still has his HughesNet service). From what I understand, in the past, the company who was ditching their email service simply sold the customer base to a company like Google.

Anyone else getting this letter. He said he would show it to me tomorrow when I go out there and set up his internet.
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Foxbat
Foxbat
Doing a Google of the HughesNet Email notice, it seems that HughesNet has been trying to eliminate hosting emails since 2019. And with HughesNet filing Chapter 11 back in August, it would be a smart move to switch to a more stable Email provider. Even AT&T farmed out their Email to Yahoo! years ago.

SpaceX's Starlink and the Cellular 5G Home Internet solutions have pretty much relegated HughesNet and its high latency, low bandwidth Internet service to History. If Earth had shorter days, maybe a Geostationary Internet Solution might have stood a fighting chance…
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dishstaller
dishstaller
Well, I helped him set up a gmail acct....I actually wanted to see what the new process is for setting up a gmail acct since it had been years since I set mine up. Anyway, I showed him how to forward the emails he wanted to keep over.
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navychop
navychop
Foxbat said:
If Earth had shorter days,
Click to expand...

Wouldn't we then die of old age sooner?

🙄
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Foxbat
Foxbat
navychop said:
Wouldn't we then die of old age sooner?

🙄
Click to expand...
Still the same number of years, just more Sunsets…😉
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dishstaller
dishstaller
Pub Member / Supporter Lifetime Supporter
Last reply · posted in The Chit Chat Club

Man falls to his death on roller coaster at 6 Flags in GA

Can't help but wonder if a worker overlooked checking the harness. I rarely ride a roller coaster anymore but when I do I check the harness myself pretty aggressively.
Can't imagine what the son is going through.

www.dailymail.com

Dad levitated and bled then fell to his death from coaster

Eyewitnesses have shared fresh details of the horrific accident that happened at Six Flags Over Georgia on Monday afternoon.
www.dailymail.com www.dailymail.com
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Jimbo
Jimbo
Back on the Goliath Roller Coaster ... I'm interested to find more details as well ...
Like where on the track did this happen (somewhere I read that it was on the climb up the top), which is impossible ...

They really need to take that ride and add at the very least, seatbelts ...

The Park is opening back up on Friday, the ride will Not be opening ... personally, I would keep it closed until different type of restraints can be designed and installed (over the winter).

I find it hard to believe that this ride is even allowed to be running with the restraints that exist at the moment, there are other rides that use the same type and they have been shut down across the country.

You got to believe that every ride has at least 2 types of restraint systems in place.

I wonder what and when we will hear from the Manufacturer ... and whatever governing bodies control these ...

Just think, this is a Major Amusement Park .... I would not have any problem getting on the Roller Coasters I have rode ...

Imagine what these County Fairs and others like them, I would not be caught Dead on one of them ... they get put up and tore down every other week, where is the safety for those rides ... No Thank You.
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Jimbo
Jimbo
bgtsafari.com

Could B&M’s Patent on the “Clamshell” Ride Restraint Design Offer Clues as to What Happened on Goliath at Six Flags Over Georgia?

Incredibly sad news out of Six Flags Over Georgia as it’s being reported one man was killed after being ejected from Goliath, the B&M hyper coaster. Many news outlets have posted pictures of pe…
bgtsafari.com bgtsafari.com
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navychop
navychop
Jimbo said:
I would not be caught Dead on one of them
Click to expand...

Yet IF you were on one, you might be caught dead.
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dishstaller
dishstaller
Jimbo said:
bgtsafari.com

Could B&M’s Patent on the “Clamshell” Ride Restraint Design Offer Clues as to What Happened on Goliath at Six Flags Over Georgia?

Incredibly sad news out of Six Flags Over Georgia as it’s being reported one man was killed after being ejected from Goliath, the B&M hyper coaster. Many news outlets have posted pictures of pe…
bgtsafari.com bgtsafari.com
Click to expand...
Had no idea there were that many redundancies built into those restraints.
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Jimbo
Jimbo
dishstaller said:
Had no idea there were that many redundancies built into those restraints.
Click to expand...
It makes sense, however, I would want more types of restraints, so if one doesn't work, the other does ... the restraints coming over the shoulder I would have expected ... with a Seat belt as last resort.

Fwiw, I inquired with what they use on Coasters at Cedar Point, various Coasters, different restraints according to what the car and track requires ...

NONE of the Coasters at CP use THAT particular system :)
I'm glad to see ...
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dishstaller
dishstaller
Jimbo said:
with a Seat belt as last resort.
Click to expand...
According to the article, when you see a seat belt on a ride like this, it is basically used as a way of making sure the rider isn't too large/fat to safely ride the ride.
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Ham Radio 2.0
· posted in Ham Radio 2.0

Kenwood TM-D750 vs ICOM ID-5200: Don't Buy One Before Watching This!

Time for another AWESOME video from Ham Radio 2.0!


View: https://www.youtube.com/watch?v=VGlC_BDgwZo


Direct YouTube Link - Kenwood TM-D750 vs ICOM ID-5200: Don't Buy One Before Watching This!
Ham Radio 2.0 Website
Ham Radio 2.0 on Facebook
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H
Houston Rockets
Last reply · posted in FTA Receiver / Equipment Support

OTHER  Mini Multiswitch

I just received 6 receiver 2 port mini Multiswitch and it work great, no external power need it, and you can connect 6 receiver instead of 4 on most Mini Multiswitches... If anyone is interested in where they can get one PM me....
IMG_1786.webp
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Titanium
Titanium
Have you tested using external power? Over the years, have found unpowered polarity switching to be unreliable. Especially problematic when used with DiSEqC motors or switch stacking.
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H
Houston Rockets
No I have not. I just got it the other day and it is connected to six receivers working just fine. What I do is non power mini multi-switches work best with LNBF's and with LNB's
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TWiT Tech Podcast Network
· posted in TWiT Tech Podcast Network

Tech News Weekly 459

Time for another AWESOME video from the TWIT Network!


View: https://www.youtube.com/watch?v=CELCVXF_wXA


Direct YouTube Link - Tech News Weekly 459
TWIT's Website
TWIT Live Feed
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TheRatPatrol
TheRatPatrol
Last reply · posted in TV Shows

NCIS

Anyone else watch this show? Any guesses as to what was in the box Gibbs gave to Abby that was on her desk? It look liked it was glowing.

I also heard that someone was leaving the show at the end of this season. Any guesses as to who thats going to be?
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TheRatPatrol
TheRatPatrol
Wait, Tony is the director now? Apologies, I stopped watching a while ago.
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Jimbo
Jimbo
TheRatPatrol said:
Wait, Tony is the director now? Apologies, I stopped watching a while ago.
Click to expand...
Was Gibbs still there when you quit watching ?
If so, A Lot has happened ....

It's been pretty good all along , once you get use to Gibbs being gone.
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Jimbo
Jimbo
Jimbo
Jimbo said:

View: https://www.youtube.com/shorts/BIdMzUBHvjw?feature=share
Click to expand...

Howard ...
You don't like Tony, or Tony as the Director (he's only been there for 30 seconds now) or you don't like NCIS ?
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Howard Simmons
Howard Simmons
Jimbo said:
Howard ...
You don't like Tony, or Tony as the Director (he's only been there for 30 seconds now) or you don't like NCIS ?
Click to expand...
Tony as the director.🙄
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Jimbo
Jimbo
Howard Simmons said:
Tony as the director.🙄
Click to expand...
Would you rather have LaRoche ???
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iJustine
· posted in iJustine

Meet up in San Francisco! NVIDIA RTX Spark Meet & Greet 10/16!

Time for another AWESOME video from iJustine!


View: https://www.youtube.com/shorts/Qd-RuBfiRUM


Direct YouTube Link - Meet up in San Francisco! NVIDIA RTX Spark Meet & Greet 10/16!
The official iJustine Website's Website
Buy her book!
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TWiT Tech Podcast Network
· posted in TWiT Tech Podcast Network

Apple's New Smart Home Ecosystem

Time for another AWESOME video from the TWIT Network!


View: https://www.youtube.com/shorts/VzOS-cQ-WkM


Direct YouTube Link - Apple's New Smart Home Ecosystem
TWIT's Website
TWIT Live Feed
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dishstaller
dishstaller
Pub Member / Supporter Lifetime Supporter
Last reply · posted in The Chit Chat Club

4 ft LED tube bulbs now come with color selector

I bought the fixed color version of these bulbs for my store several years ago...work great and no more replacing ballast. Finally had one go out and when I went back to Amazon I saw that now they come in selectable versions so no more guess work as to what color light would do best in a certain area. They are now double OR single ended...used to be strictly one way or the other. If any of you are looking at replacing the old style 4 or 8 ft bulbs, you might want to give these a try. The 8 footers are BRIGHT. I put 5 in my shooting/target shed and you can get a decent tan if you are in there long enough.

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Foxbat
Foxbat
When we re-lamped my in-Laws' house for sale last year, we were able to get all the Edison bulbs and a few fixtures with switch-selectable Color Temperature. We tried a few and settled on 3000°K as the best fit for the house. Matching the lighting in all the rooms made for an inviting experience. The Shop was the only place that we went with 4000°K for the LED 4' fixtures.

The house was sold within a month of going on the market, so we must have done something right.

The other advantage is if the new owners decide that they prefer a warmer light, they can unscrew the bulbs (I think it was close to 70 bulbs) and set them to the 2500K/2700K settings.

I'll have to check these out. Thanks!
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