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turbosat
Last reply · posted in Over the Air Television By RabbitEars.Info
Looking for a combiner-type switch for my OTA setup. I have 2 antennas, outdoors, and they are approximately 150' apart on two separate towers. Since most everything I want to see is available on UHF digital channels now, I Do not need the switches that I can find, which combine VHF+UHF signals, and only then if they are on the same mast or tower.
Both these UHF antennas are using amplifiers, as I live in the sticks, and work well, but I need to combine the two signals to send to other tvs in the house. Somebody must make a switch to combine two UHF sources together into one line-out.
Thanks!
5 Replies · 1163 views
TheKrell
Easier said than done! You can buy something like a jointenna, to combine one channel with the others. But the technical problem is that two antennas separated by 150' will have phasing problems, at least on some of the channels. This happens when the same signal enters both antennas, but at the junction destructively interfere.
turbosat
Krell, thanks for reminding me of something BASIC! Doh, I should've remembered that, been studying the same concept lately, except with scanner antennas. Guess I was just thinking of the fact that since they are dissimilar antennas pointing in opposite directions from each other, they wouldn't clash electronically. Though I really don't understand why....suppose the only way to do this the way it might work, is the old A-B switch behind the tv, and just use 2 coax cables. Or build my own cable company , lol.
edit: To add, what I'm doing is trying to watch channels from two cities 90miles apart, and I'm in the middle of them. Neither use the same channels to broadcast . Would the phasing problem still be there in that case?
Larry1
You can try a simple splitter in reverse, but unless you are very lucky, the results will not be what you expect. The other way is to use filters to eliminate the signals from the unwanted direction antenna and then a spliter (in reverse) to join the resulting two feeds together. Gets expensive fast.
Tin Lee Electronics :: CATV Filters
Heres a good forum to start reading
Over-The-Air (OTA) Digital Television - Digital Forum
TheKrell
Well... If the stations are very nearly 180 apart, and both antennas are very directional with a high front/back ratio, then you might get away with this using a simple splitter in reverse. That's so cheap I would try it and see how it works.
turbosat
I forgot to mention both these uhf antennas are running amplifiers, which complicates how switches work , power-passing or won't, etc. I will try the simple old splitter in reverse trick for grins, but I may have to settle on a 2 cable arrangment with a/b switches at the tvs after all. Tv surely gets complicated sometimes, lol, before digital it was always fighting the ghosting caused by 2 mountains.
Now I can get a decent signal on most channels within my range, but I need 3 antennas to get them all, with a couple south of me still being on vhf frequency channels. But those channels I can live without. I"ll post back when I come up with a working solution-I appreciate all the advice I received.
Scott Greczkowski
Staff member HERE TO HELP YOU! Cutting Edge
Last reply · posted in The Chit Chat Club
Sometimes a thread gets so many posts in it that is can cause issues for the server so that why today we introduce The Song Name Game Part 3!

So let the game continue!

The last song was added by Bobby who posted...

One Meat Ball - Andrews Sisters

CONTINUE ON AND HAVE FUN! WELCOME HOME TO SATELLITEGUYS.US!

Here are the original rules for the game as posted by WebbyDude back in 2006. http://www.satelliteguys.us/threads/68645-Song-Name-Game

Just name a song title and the band who performed it. The next person does the same thing, but needs to list a song title or band name which includes a word from the previous entry. Pick songs from any genre.

Example:

Long Live Rock and Roll -- Rainbow

Rainbow in the Dark -- Dio

Another example:

Ride the Lightning -- Metallica

Lightning Strikes -- Ozzy Osbourne


Get it?


An additional note: we all know that song titles, sometimes, use profane words. Because this is a family friendly website it is advised that you clean up that title up a bit. This is accomplished by using something like sh!t instead of the real word. Thanks....
68657 Replies · 2680161 views
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sdfntx
I Care About Detroit - Smokey Robinson & the Miracles
dishstaller
I Wanna Talk About Me - Toby Keith
Bobby
98.6 - Keith
harshness
I'm Easy - Keith Carridine
gms49ers
It's Easy - Boston
R
Last reply · posted in Computers and Gadgets
Lately my eight year old Dell laptop has been shutting off even when I have a full battery. I have had to keep it plugged up all the time to keep this from happening. Any idea what is causing this? I replaced the battery about three years ago.
2 Replies · 39 views
arlo
A recalibration might be needed. Even if it shows full, the individual cells may have become unbalaced. And the BMS chip in the battery reports false information to the pc.
Try this. Start it up in the bios/uefi and leave it there until the battery dies and it shuts off.
It might just keep running longer than in Windows. Or run for a short while and shut off.
If it's the first case. Probably just needs a balancing. If the latter, the pack might just be dead.
Not throwing stones but perhaps just a cheaply constructed battery with substandard cells. Could be.

Patience. Keep restarting it in bios/uefi until it won't fire up anymore.
Then plug the charger in and let it complete a full charge. And see what happens. If it's better.
Do the same thing one more time. Run it until it dies dead-dead. Then just let it charge, pc shut off.
When charged, it might be better. It might not be.

There are bench jigs that read the actual BMS and override it to let a tech manually monitor and charge the separate packs. They can also reset any "time bombs" in it that cause an otherwise good pack to show bad.
Maybe Santa will be good to me some year.

You might just need a new battery. Maybe the PC power management chip is going. A Dell common thing.
Leaving a laptop plugged in with a full battery is known to reduce the life. Asus for one recommends that you don't leave the charger plugged in all of the time even when shut down. And setting Windows to charge the battery to 85% instead of 100% increases life.
That's all I got.
dishstaller
That's all I got.
That was quite enough....I definitely learned something from your post. Thanks
TRG
TRG
Pub Member / Supporter
Last reply · posted in Computers and Gadgets
I set up a music server for my brother a few years ago. It's basically a small headless computer but it needs to have a DHCP IP address reserved for it in the router settings. This was easy to do in his DSL router. He's switching to Starlink now and I was wondering if these setting are easily accessible in the Starlink router. I'm pretty sure he will be getting the latest V5 router.
5 Replies · 278 views
b4pjoe
I set up a music server for my brother a few years ago. It's basically a small headless computer but it needs to have a DHCP IP address reserved for it in the router settings. This was easy to do in his DSL router. He's switching to Starlink now and I was wondering if these setting are easily accessible in the Starlink router. I'm pretty sure he will be getting the latest V5 router.
If you can't get into the router to reserve an IP address just don't use DHCP on the device that needs connected and assign it to a specific IP address in the network settings.
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HipKat
I set up a music server for my brother a few years ago. It's basically a small headless computer but it needs to have a DHCP IP address reserved for it in the router settings. This was easy to do in his DSL router. He's switching to Starlink now and I was wondering if these setting are easily accessible in the Starlink router. I'm pretty sure he will be getting the latest V5 router.
They are not. Your best bet is to set up a third-party router, attached to the Starlink for your server, that you can get into, like a Linksys, etc
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Foxbat
…it needs to have a DHCP IP address reserved for it in the router settings. This was easy to do in his DSL router. He's switching to Starlink now and I was wondering if these setting are easily accessible in the Starlink router. I'm pretty sure he will be getting the latest V5 router.
The Starlink V5 Install Kit I just got comes with the Mini Router. It is pretty limited in what it can do. For example, it can provide only one IP subnet at a time, no Guest Network, but it does support the pass-thru to a third-party Router. You can also split the Wi-Fi into separate 5 GHz & 2.4 GHz SSIDs to help some IoT devices that don't support 5 GHz bands to work.

The larger Starlink Router that still comes with the V4 Kit does support a Guest Network with separate IPv4 Subnet, but it's $120 from Starlink. And it still won't do DHCP Reservations.
harshness
If you can restrict the DHCP address space to assign addresses to one end of the subnet (i.e. x.x.x.50+), you can manually assign the IP address on pretty much any operating system. This is a default behavior on several popular routers. As the Router Mini only supports 235 devices, I expect that's already done.

Another option is to use a router that supports PoE to power the antenna. This article discusses that option (under PoE Power heading):

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Foxbat
Now that I've had the v5 kit with the Mini Router, it's not as bad as I first thought. Yes, no DHCP reservations, but you can set up multiple SSIDs that have separate IPv4 subnets, and like the big brother, you can select from 192.168.x.0/24 or 10.x.0.0/16 (where "x" is 1-4).

You can also split a subnet and have different SSIDs for the 5 GHz and 2.4 GHz channels to handle some IoT devices. I haven't discovered what subnet the 2nd NIC on the router assigns, I'm guessing it's the first subnet.
dishstaller
Pub Member / Supporter Lifetime Supporter
Last reply · posted in The Chit Chat Club
2 Replies · 47 views
dishstaller
Sorry for posting the wrong link. Just corrected it.
dishstaller
Pub Member / Supporter Lifetime Supporter
Last reply · posted in The Chit Chat Club
Terrible tragedy. You would think that they would have safe guards in place that would prevent something like this from happening. I guess if you are going to ride in a passenger train it might be best to get a car near the rear.

2 Replies · 51 views
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Jimbo
Terrible tragedy. You would think that they would have safe guards in place that would prevent something like this from happening. I guess if you are going to ride in a passenger train it might be best to get a car near the rear.

They will have to look at the switching sections to determine WHY 2 trains were on the same track ... at the same time.
dishstaller
Thought this article might be of interest to some of you who might travel via train.