MMDS Set-up Complete Beginner

Due to the technical specification a chorus down converter accepts 12v to 25v max 200ma. If your device cannot deliver minimum 200ma its not working. The standard psu's for mast amps deliver only 100ma max.
If you bought your downconverter from the USA thats a other story.

 

does anyone know can i use the box-t with the old ch***s analog antenna
if i hook up a power supply to it..
TIA

 

to whom it concerns, there has been a k*ychange:
here

 

hi lads, is this aerial any good for c**** ie ?
http://www.satandcable.co.uk/s/product_info.php?cPath=44&products_id=83

 

It will work perfectly.

 

btw C****S MMDS tralee area--is it dvb-t or dvb-c or analog ?

 

HI All,
Will that antenna with the power supply and the down convertor work for chorus MMDS analogue? My parents live in ashbourne co meath and I was going to buy it for them with the eurovox TX. Money is tight after Xmas so I don't want to go splashing out for this if it won't work?
Anyone any ideas how many channels you will get with this setup.
Will it pick S** Movi** etc.
Thanks
Sham

 

Hi , bought this aerial , http://www.satandcable.co.uk/s/product_info.php?cPath=44&products_id=83

Cant seem to pick up NTL in Swords on it , i know they use NTL mmds by the airport and in nearby lusk and its works on any eurovox. Im getting good levels of 85% to 95% but no transponders on a scan .Can anyone help do i need the new tx box?

 

What box are you using? if it is a eurovox have you used power scan on full. Also you need may need to do a factory reset, when you do this make sure the default you choose is symbol rate 6887 for N*L.

 

I think Swords is actually Chorus MMDS, can someone confirm? Then you would need the TX

 

I am 99% sure that Swords is chorus MMDS.
Some parts of it are digital MMDS though.
If its analogue, i.e you don't have a digibox in your house just a cable coming in you will need the TX.
Let me know how you get on as I am going to buy the aerial and TX box next week.
good Luck.

 

There is no chorus mmds in Swords.
There is either chorus true cable or ntl mmds.

 

This is the aerial specs , i mounted it on the roof , should it pick up the NTL mmds, fano has mentioned yagi but all i got is what you see in the pick the downcoverter , power supply , and the two screw like antenna ,any ideas

http://cgi.ebay.ie/MMDS-TV-Aerial-A...ryZ73383QQssPageNameZWDVWQQrdZ1QQcmdZViewItem


all-in-one MMDS aerial, downconverter. Also includes power supply (18v) and fixing bracket.

This aerial needs to be pole mounted


Gain options: 55dB
Input frequency: 2,150 - 2,162MHz / 2500~2686MHz
Output frequency: 116 - 128MHz / 222 - 408MHz
Gain stability over temp.: ±2dB
Gain flatness: +/-0.1dB@6MHz
+/-1.5dB@116-128MHz
+/-1.5dB@222-408MHz
+/-1.5dB@whole band
Noise figure: 2.5dB±0.5dB
VSWR: 1.5:1
LO frequency: 1,838MHz, 1,950MHz, 2278MHz or as per requests
LO frequency stability: ±25kHz over temp
LO phase noise -92dBc/Hz@10kHz
-99dBc/Hz@100kHz
LO leakage IF port: <-45dBm
LO leakage antenna port: <-60dBm
Image rejection >80dB
IF rejection >80dB
PCS rejection: >100dB
WCS rejection: >80dB
Spurious in IF band: <-100dBm
Output impedance: 75 ohms
Output connector: F-type female
Supply voltage: +12 VDC to +24 VDC
Temperature: -40 to +70°C
Humidity 100% weatherproof
Lighting protection
Surge protection: meets or exceeds IEEE specifications

BRAND NEW AND BOXED

 

Check the direction of the mmds arials in the neighbourhood.
Check if you use the right output. It looks like there are two.
Try 258 mhz for the scan.

 

how do i check the output , this may sound silly but there's only a connection for the cable on the downconverter to the power supply.thanks for your help

 

I dont know if this helps but the box has marked the gain as 37dB and the LO(mhz) 1838

 

It says on the ebay description that Output frequency: 116 - 128MHz / 222 - 408MHz ,thats bullshit.Its just cut and paste off elsewhere.
It should be 662-848Mhz,if the Lo is 1838.
Try scanning at 674mhz up to 700mhz in 1 mhz steps.

 

There are still some apartments in swords that have analogue MMDS, I know a guy who has it as I sold him a eurovox max v and it wouldnt work, ntl confirmed that it was chorus mmds...

 

NTL got the mmds licence for the Dublin region and around some years ago. There is simply no chorus mmds transmitter.

 

Fano is right the frequency is shifted with the LO of 1838MHz. Just means that you need to do a full power scan on the Eurovox and it should be fine. Make sure you do a full power scan or manual scan of all freq from 682MHz upward, 674MHz is not used anymore