Hi Michael, I am afraid P4A will never cover North America as it will be positioned at 26 degree east. However AMSAT USA is working on P4B which shall cover North America. I will not be a

Can any one mention if / when a Es’Hail 2 (Phase 4?) Geo will be over the America's ? KC7NOA

Hi I worked at a satellite earth station, we used mostly Intelsat satellites for the services I worked on, we used 30 meter dishes… There is Doppler, Geostationary is not stationary! Earth

Fully agree with you Matthias. Obtenez Outlook pour iOS De : main@sdr-radio.groups.io de la part de Matthias Bopp <matthias.bopp@...> Envoyé : jeudi, décembre 27, 2018 8:39 PM À

Hi Laurant, I understand but when already building an external reference circuit to generate the 27 MHz why not chose another reference to move the IF higher and have higher overall gain. Also if

Yes please share. You are very stable and frequency drifted, the best of the best ;))))) Laurent. Obtenez Outlook pour iOS De : main@sdr-radio.groups.io de la part de Matthias Bopp

Hi Laurent, as you could see from my description the Octagon LNB can be modified from a 27 MHz reference to a 26 MHz. As it locked to the 26 MHz TCXO also locking it to the 26,03076923 MHz

26,03 MHz not sure if the PLL chip will lock on it or not. Its far from the original 27 MHz, must be tested to know. I have tested some PLL chip, normally 25 MHz, they lock from 24,2 MHz up to 25,2

Matthias, The 27 MHz is locked on the GPS signal ( VCTCXO ) and re-injected to replace the 27 MHz crystal, only re-injected on one pin of PLL chip. 73 Laurent. Obtenez Outlook pour iOS

Hi Laurant, I am presently modifying another LNB and will lock it to a GSPDO or Rubidum (both are available here). What I do not understand in the approach from Loetlabor Jena is why they

"There will be some Doppler even though Es’Hail 2 is a GEO satellite " => could you explain it ??? 73 Laurent. Obtenez Outlook pour iOS De : main@sdr-radio.groups.io de la part de

Hi Laurant, this is the complete frequency response when tranmitting with a horn antenna maybe 2m away and measuring the IF output. Thus it includes the frequency response of the horn (high

Hello Matthias 73. Did you check RF filter response too ? DL3YC modification, LNB fully locked on GPS. https://www.loetlabor-jena.de/doku.php?id=projekte:3cmplllnb:start Obtenez Outlook

Nice modification Matthias, i'm a little bit jealus of your big dish and feed system ;) My solution points to those "lazy" OMs which want to use a unmodified "stock" PLL LNB and let the software

Hi, You can take a look at the following: https://loetlabor-jena.de/doku.php?id=projekte:3cmplllnb:start http://www.dg0opk.darc.de/Octagon_LNB_mod_March2017.html Klaus

73 in all cases. Laurent. Obtenez Outlook pour iOS De : main@sdr-radio.groups.io de la part de floroy42@... Envoyé : jeudi, décembre 27, 2018 7:38 PM À :

Hi Laurant, As you have requested here is a spectrum sweep of a unmodified dual Octagon PLL LNB. LO was 9750 Mhz. As you can see the gain at 600 MHz drops by about 5dB (roughly). I

I see you DON'T want to understand or believe it. Someday you will see that it works perfectly. So long... vy73 DB8TF

What doppler ????? Its a GEO sat .... there is NO Doppler !!!!! Believe it or not, GPSDO is more expensive and has slightly more drift than the sw correction = I guess a joke ? 73 Laurent.

I have seen some signals which where stabilized with GPSDO and they still have a little drift of a few Hz. My solution uses the beacon signals from the sat an eliminates any doppler or other effects