Log in
Register
Menu
Log in
Register
Home
What's new
Latest activity
Authors
Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Current visitors
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Norsat LNB Whats Wrong ? pics
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="ouagadougou" data-source="post: 500762" data-attributes="member: 187470"><p><span style="font-family: 'Comic Sans MS'">Its difficult to make a dual polarised solution using these rectangular flanged LNB's and maitain the low noise performance because the LNB's have Rectangular <span style="color: black"><strong>W</strong></span>aveguide<strong>R</strong>ectangular<strong>75</strong> waveguide ports. Single polarised low noise systems will work better. </span></p><p> </p><p><span style="font-family: 'Comic Sans MS'">If the feedhorn has a WR75 flange then it is not designed for dual polarisation so forget dual pol with the 611-6060-07. The </span><span style="font-family: 'Comic Sans MS'">611-6062-07 feed has a <strong>C</strong>ircular<strong>120</strong> flange before the dual pol WR75 spliter/transition. The dual WR75 transition is a splitter which will introduce some loss before the LNB inputs which defeats the improvements gained by using these low noise LNB's.</span></p><p> </p><p><span style="font-family: 'Comic Sans MS'">Dont use an OMT for this solution the 2nd port is not designed for the receive frequency passband it is designed for the higher uplink frequency range at 14GHz.</span></p><p> </p><p><span style="font-family: 'Comic Sans MS'">Based on keano's results it seems we can trust the Norsat specifications which is a nice change from the mass market LNB's.</span></p><p> </p><p><span style="font-family: 'Comic Sans MS'">Cheers.</span></p></blockquote><p></p>
[QUOTE="ouagadougou, post: 500762, member: 187470"] [FONT=Comic Sans MS]Its difficult to make a dual polarised solution using these rectangular flanged LNB's and maitain the low noise performance because the LNB's have Rectangular [COLOR=black][B]W[/B][/COLOR]aveguide[B]R[/B]ectangular[B]75[/B] waveguide ports. Single polarised low noise systems will work better. [/FONT] [FONT=Comic Sans MS][/FONT] [FONT=Comic Sans MS]If the feedhorn has a WR75 flange then it is not designed for dual polarisation so forget dual pol with the 611-6060-07. The [/FONT][FONT=Comic Sans MS]611-6062-07 feed has a [B]C[/B]ircular[B]120[/B] flange before the dual pol WR75 spliter/transition. The dual WR75 transition is a splitter which will introduce some loss before the LNB inputs which defeats the improvements gained by using these low noise LNB's.[/FONT] [FONT=Comic Sans MS][/FONT] [FONT=Comic Sans MS]Dont use an OMT for this solution the 2nd port is not designed for the receive frequency passband it is designed for the higher uplink frequency range at 14GHz.[/FONT] [FONT=Comic Sans MS][/FONT] [FONT=Comic Sans MS]Based on keano's results it seems we can trust the Norsat specifications which is a nice change from the mass market LNB's.[/FONT] [FONT=Comic Sans MS][/FONT] [FONT=Comic Sans MS]Cheers.[/FONT] [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Norsat LNB Whats Wrong ? pics
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top