R F Modulator question

[tallyho8]

There are some on Amazon that claim to support multiple frequencies and even UHF -- maybe that is an easier option?
https://www.amazon.com/Modulator-KKmoon-Compact-Converter-Amplifier/dp/B079JXQKQJ

Thank all of you for your support. I am technologically challenged. My son was a computer engineer and could have easily done what I need done if he were still alive. He connected my cox cable wirelessly to his house which is 900 feet away using something similar to Pringles cans for antennas. I am not sure how IP cameras work. Do they need an internet connection? I have no internet available in my barn which is 1/4 mile from my house with internet.

This modulator on Amazon sounds like what I need if I can use my present one on channel 3 and use this one on , lets say, channel 6 hooking both modulators to a splitter and then to my cable in the barn. Can a dummy easily adjust that modulator to send signals on channel 6? I have old cameras but they have amazing pictures even in semi-darkness because they are down to about .001 lux.

 

[k0ua]

Thank all of you for your support. I am technologically challenged. My son was a computer engineer and could have easily done what I need done if he were still alive. He connected my cox cable wirelessly to his house which is 900 feet away using something similar to Pringles cans for antennas. I am not sure how IP cameras work. Do they need an internet connection? I have no internet available in my barn which is 1/4 mile from my house with internet.

This modulator on Amazon sounds like what I need if I can use my present one on channel 3 and use this one on , lets say, channel 6 hooking both modulators to a splitter and then to my cable in the barn. Can a dummy easily adjust that modulator to send signals on channel 6? I have old cameras but they have amazing pictures even in semi-darkness because they are down to about .001 lux.

Follow the instructions on the modulator's manual when you get it and you should be fine. If need be, we can talk on the phone. from looking at the front panel in the pix it looks very simple to me. set the channel and it has an adjustment for RF signal level, also video level if needed and the audio level if your camera has a microphone. You should not need the rf in jack just take the RF out into your splitter OR it looks like you could take the RF output of your other camera on say channel 3 to its input, and it should pass that thru as well as insert its own video on say channel 5 or 6 (you select that). Again adjust your RF output level with the control to a good picture where the "snow" disappears and you should be good to go. If the video seems weak adjust that if needed, again these controls are analog on the front panel and look easy to set up. I would take a portable TV into the barn and set it up there and then hook it to the coax run to the house, YOu might have to give it a little more RF to overcome the loss in the coax to the house. good luck and call me if you need to.

IP cameras in this case do not need access to the internet as you would be building a close system BARN___HOUSE. obviously you will need to set up an IP network of your own, on a Class C network like 192.168.0.1 and there are several other choices like subnet mask, DHCP or fixed IP address etc. But of course your existing router in the house could hand them an address thru DHCP and the wireless link you would need to build that you dont' have. So all of that may be beyond your capabilities without a lot of help, but this RF modulator looks like a piece of cake. .

 

[hawkeye08]

This is what I love about the TBN crowd... lots of folks with expertise willing to help.

 

[tallyho8]

Thank you for the info James. That one shipped from China in 2 months but I found one on eBay, cheaper, and it ships in 10 days so I ordered it. After I get it I will come back if I need any more info.

 

[k0ua]

Thank you for the info James. That one shipped from China in 2 months but I found one on eBay, cheaper, and it ships in 10 days so I ordered it. After I get it I will come back if I need any more info.

Very good.. Don't hesitate to contact me and we can exchange phone numbers.

 

[Grumpycat]

Thank all of you for your support. I am technologically challenged. My son was a computer engineer and could have easily done what I need done if he were still alive. He connected my cox cable wirelessly to his house which is 900 feet away using something similar to Pringles cans for antennas. I am not sure how IP cameras work. Do they need an internet connection? I have no internet available in my barn which is 1/4 mile from my house with internet.

You could have internet in the barn if you have it in the house and wish to extend. But in answer to your question, you do not need "internet" to use an IP (internet protocol) camera unless it is something like Ring which must talk to servers hosted by Amazon. You will need a computer to display and might prefer to leave the computer running to record 24/7. Then you simply assign IP numbers and connect via number and not name (number such as 192.168.1.10 not a name such as tractorbynet.com).

The advantage of Ring is for $10/month unlimited or $3/month per camera they will record and store for 3 months. But you must have an internet connection.

If existing coax is direct-buried in the ground then WiFi would probably be the best way to link house and barn. There are special long range directional WiFi links for this purpose. Look for "Ubiquiti" on Amazon and elsewhere.

If coax in conduit then you could pull cat6 unshielded twisted pair to replace the coax. But again this will need special treatment on each end because protocol timing limits wire to 100 meters. Seriously, the speed of light is not fast enough. Also cat6 in lengths longer than 1000' is harder to find and more expensive.

Advantage of going to all this effort is that addition of more cameras will be very easy. Even internet access in the barn.

 

[i7win7]

https://www.amazon.com/Modulator-KK...84809358&sprefix=rf+modulator,aps,223&sr=8-14

Would this work? Your monitor would need to be a digital TV.

 

[k0ua]

Unfortunately the RF modulator that Dudley received from Ebay came with a 220 volt power plug, BUT that was not the biggest problem. In reading the little 2 page literature that was sent with the unit, it appeared to be a PAL standard unit NOT a NTSC unit. Therefore since Dudley does not have a PAL TV there would be no way to make this work. And even if he did have a PAL system TV, of course his existing NTSC standard RF modulator would not work with it. So this appears to be a not starter, and I advised to return the unit.

 

[Industrial Toys]

Sorry about that. Happens to me too when you don't know a subject entirely. Like ordering a SS float switch with a 1/2" pipe thread. NPT right? NO, who knew there was straight thread? Stuff on E-Bayfrom China isn't even worth returning. Live and learn.

Always check the plug, voltage, frequency on electrical stuff, Sometimes the US plug version even bumps up the price, over the initial enticing one.

 

[MossRoad]

You could try a $40 experiment.

https://www.amazon.com/Modulator-KK...earch-10&pf_rd_t=BROWSE&pf_rd_i=11042001&th=1

Now it's $29....

 

[MossRoad]

With free shipping

 

[tallyho8]

Now it's $29....

That's the exact same one I bought on eBay for $21.99 with free shipping in 10 days.

 

[tallyho8]

With free shipping

In 2 1/2 months from China.

 

[MossRoad]

Bummer... the description said it was 120v and has both NTSC and PAL modes.

 

[k0ua]

Bummer... the description said it was 120v and has both NTSC and PAL modes.

It may have PAL and NTSC but the meager "chinglish" instructions that came with it makes no mention of NTSC or how to change it to that protocol. It did make mention of PAL. He was going to email the supplier and see what they had to say. I am sure you have all gotten things from China and the stupid instructions are more trouble than the device. Example: "place operating squirrel into hole A so that better moth well be enabled"..

 

[MossRoad]

Here's an interesting video....

I think you'd mess with that SET button and then get it to display 0.0 to set it to NTSC.

Paul-G Pavel
0.0 - NTSC-M, sound + 4.5 Mhz, North and South Americas, Japan, South Korea
0.1 - PAL-B/G, sound + 5.5 Mhz, Majority of countries of Western Europe, and Africa, Australia, New Zealand.... C-Air Channels, S-Cable Channels
0.2 - PAL-I/I, sound + 6.0 Mhz, The UK, Ireland, South Africa, Hong-Kong
0.3 - PAL-D/K SECAM-D/K, sound + 6.5 Mhz, countries of Eastern Europe, Russia, China, African countries that were once ruled by France, Metropolitan France (SECAM-K1 = SECAM-D/K) .
Not support France and Monaco - SECAM-L'/L.

 

[tallyho8]

Here's an interesting video....

I think you'd mess with that SET button and then get it to display 0.0 to set it to NTSC.

Paul-G Pavel
0.0 - NTSC-M, sound + 4.5 Mhz, North and South Americas, Japan, South Korea
0.1 - PAL-B/G, sound + 5.5 Mhz, Majority of countries of Western Europe, and Africa, Australia, New Zealand.... C-Air Channels, S-Cable Channels
0.2 - PAL-I/I, sound + 6.0 Mhz, The UK, Ireland, South Africa, Hong-Kong
0.3 - PAL-D/K SECAM-D/K, sound + 6.5 Mhz, countries of Eastern Europe, Russia, China, African countries that were once ruled by France, Metropolitan France (SECAM-K1 = SECAM-D/K) .
Not support France and Monaco - SECAM-L'/L.

That guy is more confusing than the Chinese instructions I got with the modulator. After playing around with it with no instructions as to how to operate it, I finally got it set to NTSC. However, the channel numbers on the modulator do not match up with the channel numbers on the TV. I tried it on about 10 different channels, rescanning my TV each time and the TV could never find the channel I had the modulator on.

The rain has stopped and the grass is growing. I don't have time to spend 4 hours a day playing with this modulator. It's going back and I'm getting one with English instructions.

 

[tallyho8]

I finally got another modulator and set it up for channel 28 to go along with my other camera on channel 3. My camera on channel 3 works perfect but the camera on this UHF modulator still has a fuzzy picture as if another channel is interfering with it. I don't have any over the air tv stations close to channel 28. The closest are channels 26 and 32. Could it be that UHF frequencies do not travel as far as VHF ones since I have a 1/4 mile cable from my barn cameras to my house?

When testing the modulator and camera in my shop with a short 8' cable going to the monitor, it worked great. I am frustrated and about to just get me a good guard dog or two.

(NEW) UHF RF Modulator - Free Shippoing | eBay

 

[MossRoad]

You're running that over 400 yards of coax?

 

[k0ua]

I finally got another modulator and set it up for channel 28 to go along with my other camera on channel 3. My camera on channel 3 works perfect but the camera on this UHF modulator still has a fuzzy picture as if another channel is interfering with it. I don't have any over the air tv stations close to channel 28. The closest are channels 26 and 32. Could it be that UHF frequencies do not travel as far as VHF ones since I have a 1/4 mile cable from my barn cameras to my house?

When testing the modulator and camera in my shop with a short 8' cable going to the monitor, it worked great. I am frustrated and about to just get me a good guard dog or two.

(NEW) UHF RF Modulator - Free Shippoing | eBay

Loss of coax increases as the frequency increases. Choose the lowest channel it will go to, and if necessary put a pre amp after the RF modulator end to raise the level of signal to overcome the loss. This is why the other one had adjustable RF levels.