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DISH SETUP: Single sat, Multi-Sat & Motorised
KA Band section
Ka project....
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<blockquote data-quote="John" data-source="post: 951148" data-attributes="member: 175005"><p>..... In a round about way i suppose M ...</p><p></p><p>I had a thought a couple of months ago about using Ka with the ability to do linear H / V using just one PLL lnb with some skew control as a bonus and with the least amount of signal sapping components in the way.</p><p>As this is not going to be used at focus on the 1.8CM i felt i needed to give myself the best start by going for a PLL lnb. The servo motor is just a way of swinging through 90deg for H/V... or even slant polorisation lol but also allowing me to have some fine skew adjustment as a bonus. Now i know this is not in the same quality engineering product as our good friend Trust1 , who's skills i greatly admire, along with others on this forum, but not too bad for a contracting Sparky.</p><p>I had worries that the servo would not work on the end of a 20mtr length of .5mm x 3core cable but supprisingly it did ok, so that was one worry out of the way.</p><p>Again, the bits came out of the left-overs box that went into the 1.8CM re-build apart from the small abs box, cable .... got a van full. The BIG expense was, youv'e guessed it, the XMW Ka PLL lnb <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /></p><p>Because of the shape of these lnb's it would be possible to just slide a different band Ka lnb in if you fancied it <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" /><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek! :eek:" loading="lazy" data-shortname=":eek:" />.</p><p></p><p>I'm just waiting for for the XMW to arrive before i can exactly fabricate the holding arms so to speak. I have an engineering drawing of it but i prefer to have it in front of me to work with.</p></blockquote><p></p>
[QUOTE="John, post: 951148, member: 175005"] ..... In a round about way i suppose M ... I had a thought a couple of months ago about using Ka with the ability to do linear H / V using just one PLL lnb with some skew control as a bonus and with the least amount of signal sapping components in the way. As this is not going to be used at focus on the 1.8CM i felt i needed to give myself the best start by going for a PLL lnb. The servo motor is just a way of swinging through 90deg for H/V... or even slant polorisation lol but also allowing me to have some fine skew adjustment as a bonus. Now i know this is not in the same quality engineering product as our good friend Trust1 , who's skills i greatly admire, along with others on this forum, but not too bad for a contracting Sparky. I had worries that the servo would not work on the end of a 20mtr length of .5mm x 3core cable but supprisingly it did ok, so that was one worry out of the way. Again, the bits came out of the left-overs box that went into the 1.8CM re-build apart from the small abs box, cable .... got a van full. The BIG expense was, youv'e guessed it, the XMW Ka PLL lnb :eek::eek::eek::eek::eek: Because of the shape of these lnb's it would be possible to just slide a different band Ka lnb in if you fancied it :eek::eek::eek::eek::eek::eek:. I'm just waiting for for the XMW to arrive before i can exactly fabricate the holding arms so to speak. I have an engineering drawing of it but i prefer to have it in front of me to work with. [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
KA Band section
Ka project....
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