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
Fringe Reception General
Help needed in identifying certain transponders (new, cryogenic LNB cooling)
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="mouse3" data-source="post: 805854" data-attributes="member: 350056"><p>Cooling LNC to -50C signal level increase by 1,6dB,tested myself on 2,2m dish hunting Astra 1N here in Transilvania.</p><p>From 47dB to 48,6dB on signal meter,conclusion 2,2m not enough for reception'O'-red...inverto black ultra twin chinese stuff perform better vs. Invacom,LOL<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" />... it s summer and signal it s very low.Make test one months ago.</p><p>Next experiment,Ku band array.Array and cooling must catch this impossible bird on summer time.:-worship</p><p></p><p>Here are the picture about.Enjoy.</p><p></p><p>Some explanations,2mm coper pipes i use to spray dry nitrogenne to remove moisture and air from LNC probes,some low tech antifreeze device.Works perfect and do the job,no ice and moisture present after experiment inside LNC probes.</p><p>Test take only 60 seconds,enough for conclusion.Cooling refrigerant R404a.5Kg.</p><p></p><p>Who want to go more advance,R 1150 cooling temperature -80C,but can t be found here this refrigerant.I need help from UK to have it.Combined with R404a in two stage refrigeration unit means -105C temperature for LNC.</p><p>Enough for crazy Dx-ing i think.</p></blockquote><p></p>
[QUOTE="mouse3, post: 805854, member: 350056"] Cooling LNC to -50C signal level increase by 1,6dB,tested myself on 2,2m dish hunting Astra 1N here in Transilvania. From 47dB to 48,6dB on signal meter,conclusion 2,2m not enough for reception'O'-red...inverto black ultra twin chinese stuff perform better vs. Invacom,LOL:D... it s summer and signal it s very low.Make test one months ago. Next experiment,Ku band array.Array and cooling must catch this impossible bird on summer time.:-worship Here are the picture about.Enjoy. Some explanations,2mm coper pipes i use to spray dry nitrogenne to remove moisture and air from LNC probes,some low tech antifreeze device.Works perfect and do the job,no ice and moisture present after experiment inside LNC probes. Test take only 60 seconds,enough for conclusion.Cooling refrigerant R404a.5Kg. Who want to go more advance,R 1150 cooling temperature -80C,but can t be found here this refrigerant.I need help from UK to have it.Combined with R404a in two stage refrigeration unit means -105C temperature for LNC. Enough for crazy Dx-ing i think. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Satellite TV receivers & systems support forums
Fringe Reception General
Help needed in identifying certain transponders (new, cryogenic LNB cooling)
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