5.8Ghz Digi Sender

seatleon2000

Anyone know where I could get a 5.8Ghz digi sender .. the kind thats not affected by phones/microwaves and wireless networks on the 2.4ghz range

available in america here

watty

AFAIK not legal here.

The 2.4GHz ones:
a) If your microwave oven affects it get a new Microwave QuicK! It shouldn't

b) Phone should have no effect.

c) WiFi / Videosender can interfer, but you have a choice of four WiFi channels and 11 or so WiFi. Also siting can remove any interaction between the two. I have both successfully!

seatleon2000

watty wrote:

The 2.4GHz ones:
a) If your microwave oven affects it get a new Microwave QuicK! It shouldn't

b) Phone should have no effect.

Both cordless phones and microwaves can affect see here

watty wrote:

c) WiFi / Videosender can interfer, but you have a choice of four WiFi channels and 11 or so WiFi. Also siting can remove any interaction between the two. I have both successfully!

Even using different channels and moving the location I get *lines*

I want perfect .. do you have any source for the illegality of the 5.8ghz band?

DMC

Well, as a rule of thumb, the frequencies the US licences for specific uses are often a lot different than what may be used in Europe.

azzeretti

seatleon2000 wrote:

I want perfect .. do you have any source for the illegality of the 5.8ghz band?

Illegailty!?
2.4 and 5.8 do not fall within the licensed spectrum, hence, they are perfectly legal as long as the transmitter outputs less than 100mw (I think) check the comreg site for the exact speil!

Sponge Bob

5.8 must be registered with comreg (free) in Ireland

http://www.comreg.ie/search/display.asp?search=&Match=near&publicationstype=100002&ydate=&submit=Go

Sparky

i have the digisender, its brilliant no wifi interference, only interference is the microwave, but thats hardly on.

seatleon2000

Sparky-s wrote:

i have the digisender, its brilliant no wifi interference, only interference is the microwave, but thats hardly on.

any chance you could let us know where you got it, and how much you paid?

watty

azzeretti wrote:

Illegailty!?
2.4 and 5.8 do not fall within the licensed spectrum, hence, they are perfectly legal as long as the transmitter outputs less than 100mw (I think) check the comreg site for the exact speil!

WRONG..

WiFi and Video Senders and PMR446 etc are PRE-LICENCED. Unlicenced spectrum means spectrum that you don't explicitly apply for. It doesn't mean any device less than 100mW is OK. For example MMDS on 2.5GHz is Licenced and is Digiweb on 10.5GHz.

Some IBB equipment does not use IBB licenced spectrum, it is CE marked and using the 5.6 or 2.4 WiFi "pre-licenced" bands, commonly referred as "Unlicenced" as IBB has no licence giving imunity from other users etc.

Any "PRE-LICENCED" device (i.e. Approved) must have a CE mark. Some have a /!\ symbol which means not all EU countries allow it.

Re-read Comreg site carefully.

Also any "Approved" device for so-called "unlicenced" spectrum can't normally be modifiied without making it illegal, i.e. you can't legally fit an external aerial connector on a PMR446 Walkie Talkie. Oddly you may on any WiFi device, but in such a case there is a limit to dish size as ERP limits must not be exceeded.

If a Microwave or Video Sender interfere, then one or other is faulty or the Video Sender is rubbish.

I can get perfect pictures both with my Lidl and Thomson Video senders either from Living room to shed at bottom of garden or bedroom with Microwave in Kitchen running and WiFi running in Kitchen with two laptops.

I do have to adjust the Video sender aerials and channels to aviod interference from the WiFi, and to aviod the Video Sender blocking the WiFi.

Robert

Hi Guys have an us cordless phone with two hansets working on 5.8 for over two years now. Works great

marksi

Every microwave will affect a 2.4ghz video sender, faulty or not.

watty

Robert wrote:

Hi Guys have an us cordless phone with two hansets working on 5.8 for over two years now. Works great

It may. But it it deosn't make it legal. Also imported equipment working out of band can interfere with users that have paid a licence to use a frequency.

Medical, Security, Broadcast links, radar, telemetry, Broadband licences, Mobile phone wireless distribution / links to masts, Wireless Experimenters all pay licence fees and all can use unlikely microwave frequencies.

It is irresponsible to use unapproved Radio Equipment even if it seems to work fine.

watty

marksi wrote:

Every microwave will affect a 2.4ghz video sender, faulty or not.

How many have you tested?

I've tested four ovens, 3 different WiFi base units and 2 brands of video senders.

The one oven that caused a problem failed door seal microwave leakage tests.

god's toy

Sparky-s wrote:

i have the Digisender, its brilliant no wifi interference, only interference is the microwave, but thats hardly on.

Yea I have one too (with three receivers on it) the Microwave, wireless network and Xbox 360 PSU kill the receivers when they are on so I have to think about what I want to use before I use it.

Still Digisender are good, only wish they where up the band spectrum a little as more and more things are getting in the way of it working now.

Sparky

seatleon2000 wrote:

any chance you could let us know where you got it, and how much you paid?

Argos about a year ago, i think it was around €129, they have a silver better model out now afaik.

watty

Sounds bad about the Xbox. Try ferrite clamps on all its cables and put it in a earthed foil lined box (perforated for air, the little daemons that make it go need air) if still interfering. Try ferrite clamps or rings on the Microwave oven too and make sure it is earthed.

By repositioning aerials and channel selection of the video senders and the Wifi these too can co-exist.

I don't think Argos does the Thompson ones any more that I got, but I might have got them in Savins.

I have thought the Philips one with ability to remote select from four inputs sounded usefull, but a bit pricy.

The MAplin ones at 60 Euro are reputed to be OK. They don't look much different to to the Lidl model.

Unfortunately EU approved a gazillion devices for a few tiny bands, so problems are unescapable. I have cabled most of stuff now.

You can get adaptor to do RGB SCART over Cat5. Stereo over a separate Cat5 cable is easy with ordinary "baluns". Again you can buy a box.

The video senders while FM Video and stereo audio are only composite.

They all have to conform to same spec, but some have better receivers.

god's toy

Thanks for your help Watty, top class mod, It's good to know your here! and thanks for the update info, i'll give this stuff a try for sure.


Happy new year!

Sponge Bob

baluns are pricey and you need 2 (one at each end of cat v) per cable run + they run at 75ohms

watty

Sponge, your'e thinking of RF baluns maybe. If you check "Black box", Misco, etc there are cheapish boxes for RGB video (4 baluns each end), SVGA and Stereo Audio with the A/V conectors and an RJ45 etc. There is even a box to remote VGA, mouse and Keyboard over cat5 (could be used for RGB + IR remote signal etc).