Ka project....

[RimaNTSS]

Automatic Polarity Changer

Where did you get this changer, John? Nice piece of equipment.

 

[John]

Where did you get this changer, John? Nice piece of equipment.

From "Ricks satellite", USA, Rimant. It will do more functions if you want it to, i am just using it in manual mode for the time being. I have a servo motor tester that does a similar job but is not as stable as the USA one and is not automatic.
Here's the spec sheet for the APC .....

 

[John]

.... Under pressure from freind Scopus Chris to get my finger out and produce an image iv'e had to go out this morning in the freezing cold and rain and lash up the XMW. It's miles off bore-sight, no skew control, not at optimum focus and yet is giving me a nice result which i can only improve on. Result

 

[Archive-8]

.... Under pressure from freind Scopus Chris to get my finger out and produce an image iv'e had to go out this morning in the freezing cold and rain and lash up the XMW. It's miles off bore-sight, no skew control, not at optimum focus and yet is giving me a nice result which i can only improve on. Result

That's a good strong signal there :-)

 

[scopus]

.... Under pressure from freind Scopus Chris to get my finger out and produce an image iv'e had to go out this morning in the freezing cold and rain and lash up the XMW. It's miles off bore-sight, no skew control, not at optimum focus and yet is giving me a nice result which i can only improve on. Result

Good signal there JG. About time you did some work! I'd say you were not far off at that, raining here at the mo, just a dB lower. waiting for my XMW feed to try out now

 

[scopus]

Also ordered one for the Hughes, thanks Feedsat, bargain price......

Well, it seems my feed might have gone astray, along with other bad luck at the moment. No entries on the tracking since the 9th with me the last being 'Plate-form Nord' in France, but John's was in the UK the day after leaving France. Sent Julien an E -mail to see if he can help.


à destination de : STOKE ON TRENT
Date Libellé Localisation
09/01/2016 Votre colis est en cours d'acheminement. Plate-forme Nord
09/01/2016 Votre colis est en cours d'acheminement. COLIPOSTE LA POSTE
09/01/2016 Colis remis pour l'acheminement par flashage machine de tri Plate-forme Nord
08/01/2016 Votre colis est en cours d'acheminement. Site Colis 33
08/01/2016 Votre colis a été déposé dans un point postal. Centre Courrier 47
08/01/2016 Votre colis est prêt à être expédié, il va être remis à La Poste.

Johns tracking

07/01/2016 Your parcel was delivered. GB - Nottingham
07/01/2016 Your parcel is being prepared for delivery. GB - Nottingham
07/01/2016 Your parcel has arrived at its delivery location GB - Nottingham
06/01/2016 Your parcel has arrived in the destination country GB - Oldbury
05/01/2016 Your parcel is being shipped. Nord platform
05/01/2016 Your parcel is being shipped. COLIPOSTE LA POSTE
05/01/2016 Colis remis pour l'acheminement par flashage machine de tri Nord platform
04/01/2016 Your parcel is being shipped. Sorting office 33
04/01/2016 Your parcel has been posted in a postal location. Sorting office 47
04/01/2016 Your parcel is ready to be shipped. It will be soon handed over to La Poste.

Just my luck!

 

[scopus]

Well, it seems my feed might have gone astray, along with other bad luck at the moment. No entries on the tracking since the 9th with me the last being 'Plate-form Nord' in France, but John's was in the UK the day after leaving France. Sent Julien an E -mail to see if he can help.


à destination de : STOKE ON TRENT
Date Libellé Localisation
09/01/2016 Votre colis est en cours d'acheminement. Plate-forme Nord
09/01/2016 Votre colis est en cours d'acheminement. COLIPOSTE LA POSTE
09/01/2016 Colis remis pour l'acheminement par flashage machine de tri Plate-forme Nord
08/01/2016 Votre colis est en cours d'acheminement. Site Colis 33
08/01/2016 Votre colis a été déposé dans un point postal. Centre Courrier 47
08/01/2016 Votre colis est prêt à être expédié, il va être remis à La Poste.

Johns tracking

07/01/2016 Your parcel was delivered. GB - Nottingham
07/01/2016 Your parcel is being prepared for delivery. GB - Nottingham
07/01/2016 Your parcel has arrived at its delivery location GB - Nottingham
06/01/2016 Your parcel has arrived in the destination country GB - Oldbury
05/01/2016 Your parcel is being shipped. Nord platform
05/01/2016 Your parcel is being shipped. COLIPOSTE LA POSTE
05/01/2016 Colis remis pour l'acheminement par flashage machine de tri Nord platform
04/01/2016 Your parcel is being shipped. Sorting office 33
04/01/2016 Your parcel has been posted in a postal location. Sorting office 47
04/01/2016 Your parcel is ready to be shipped. It will be soon handed over to La Poste.

Just my luck!

Panic over, it arrived via DPD

 

[John]

Fitted Ka pll dual polarity unit to the changer plate and had a quick test.
Pleased with it's operation so far and with the aid of the analyser you can really tweek it for best performance and reduce any cross polarity with getting the skew right . The video shows how it can null out the offending Horizontaly polarised signal just showing itself. The changer is slowly filling up and is getting quite weighty.


Quick vid here .... https://6xMGnaDhBfM

or: Youtube vid ..... "XMW polarity changer"

 

[John]

Shock Horror .... Newsnet office have mice !. Just seen this little fella run across the floor left to right and dissapear under the desks. The lass that's normally sat in the chair with her back to us was away from her post for about ten minutes so didn't see it. Eeeeek.

 

[Llew]

They're always eating and drinking at their desks John whenever I look in, no doubt dropping bits of their BLTs. No wonder it's a rodent paradise.

 

[scopus]

Shock Horror .... Newsnet office have mice !. Just seen this little fella run across the floor left to right and dissapear under the desks. The lass that's normally sat in the chair with her back to us was away from her post for about ten minutes so didn't see it. Eeeeek.

Ring her up and tell her your discovery.........lol
They could cause some damage if there is a family of them, nibbling through all the cables...

 

[John]

Ring her up and tell her your discovery.........lol
They could cause some damage if there is a family of them, nibbling through all the cables...

that went through my mind as well Chris, i imagine all the IT cabling points are in the middle of that desk area .... i wonder if someone has left an unused outlet box not blanked off properly allowing access to cable ducting system

 

[scopus]

We've had quite a bit of snow overnight, must say I'm well impressed with the XMW feed from Feedsat friends shop, with all the snow on the LNB's and dish still getting 12dB on Newsnet.

 

[John]

We've had quite a bit of snow overnight, must say I'm well impressed with the XMW feed from Feedsat friends shop, with all the snow on the LNB's and dish still getting 12dB on Newsnet.View attachment 89846 View attachment 89847 View attachment 89848

Look at those poor little lnb's , they must be freezing bless 'em

I see your at focus with the XMW feed , as we both use the same dish and feed , we are both at focus ..... this bit of useless info might be of use to you ma'boy . My XMW feed at focus looking at my 'G' spot , which was determined by using the original CM feed and support arms was 123.1 cm, after doing some final tweaking on focus / best S/N figures yesterday before the snow came , my final distance was 125.5cm from white cap to 'G' position, nearly 2cm further back. Testing & adjustments was done over about 20 minutes .... first measurement, using Newsnet freq was 14.5 db @ 123.1 cm and final best position gave 15.7dB @ 125.5.
Iv'e still got to fill in all my measurements onto Rimants excellent CM profile drawing for him to compare so will do that now asap when weather permits.

 

[John]

We've had quite a bit of snow overnight, must say I'm well impressed with the XMW feed from Feedsat friends shop, with all the snow on the LNB's and dish still getting 12dB on Newsnet.View attachment 89846 View attachment 89847 View attachment 89848

... meant to say also, get your wellies on and get out there with a brush and remove that snow from the dish & lnb's , you want reporting to the authorities under the " cruelty to satellite equipment" law ;)

 

[scopus]

I'll have to measure mine.........;)

 

[scopus]

... meant to say also, get your wellies on and get out there with a brush and remove that snow from the dish & lnb's , you want reporting to the authorities under the " cruelty to satellite equipment" law ;)

I will dear, I was in my night attire when I took the said photos

 

[John]

I'll have to measure mine.........;)

....Ohh behave

 

[John]

For Feedsat_DXer, untill i had a recent pc crash i had a satellite enthusiast's list from possibly one of the German boards that listed all the types of Ka frequencies and use found on various satellites across the arc, can you or any other person point me in the right direction again to download it.
Many thanks

 

[Llew]

There's this one John, which I think is hosted by Feedsat, list provided by hvdh -

http://www.satellitescommunity.de/kasatellites/3index.html