Re: Pluto / F5OEO Help Please


Siegfried Jackstien
 

check ... so i enlarge them a bit to 8mm ... then spray-paint

greetz sigi dg9bfc

Am 06.04.2021 um 12:28 schrieb Simon Brown:

Hi,

8mm diameter.

Simon Brown, G4ELI
https://www.sdr-radio.com

-----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Siegfried Jackstien
Sent: 05 April 2021 18:58
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Pluto / F5OEO Help Please

0.41 ... i was close enough hi hi

what diameter are the screws??

dg9bfc sigi

ps ... clear spraypaint and raincap will be added tomorrow

Am 05.04.2021 um 15:19 schrieb Simon Brown:
Ah,

I think my FD is 0.41 https://www.primesat.eu/satellite_dishes_prime_focus_1400cm.php .

Simon Brown, G4ELI
https://www.sdr-radio.com

-----Original Message-----
From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of Siegfried Jackstien
Sent: 05 April 2021 16:07
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Pluto / F5OEO Help Please

cut the horn

build a ringfeeed (surpresses sidelobes a bit)

depending how far you push lnb trough ringfeed you can finetune for an f/d 0.36 to 0.42 (similar can be seen on all c band lnb)

see what i made last night ;-)

and cause simon did not answer i "guessed" his dish is around 0.4

greetz sigi dg9bfc


Am 05.04.2021 um 08:45 schrieb Alan via groups.io:

what is f/d on that cf dish??
wih a normal lnb you only use half the dish size
Or put a piece of 21mm tube in place of the horn gives ~+2dB

73 Alan G4ZFQ















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