professional way to solve...may be the best solution.
A very effective attenuator for SSB is a feature almost all (modern) transceivers have: 'MIC GAIN' ; -)
Yes, I know. But with mic gain you have major risk to cook your converter if you forget to setup it when you come from terrestrial ssb ! Ok I guess you are saying :But it the same if you regulate power, if you forget to lower the power you have the same result... ok but I'm confident that this solution (regulate KW TS2000 power) is more secure than mic gain...
TU 73 !
I found a 29db "rf Florida" chip attenuator in the surplus.
So I can drive the BU-500 with my TS-2000 using max. 20W. It will give about 0,3W out for the SG-Lab Amp -> ca. 15W max. out
So I can regulate between 3-15W on 2,4GHz (5 to 20W from the TS-2000).
If 3W is still to much, I can use the 0,3W from the BU-500
I'm oriented to reduce power like OE7DBH Darko has done in youtube video. ..But i've a power budget too high in 2 mt band. I've an idea for trying to reduce power on TS2000, on the settings. I'm not interested to have full power on 2 mt, and I have skills to try some adjustment on the hidden menu. If I will have good results, I will publish it in some way.
I use a similar switchabe attenuator like this to get the 1W from my Yaesu ft-790 to the needed input power for the BU500.
Be carefull with the output level from the BU, the build in bandpass will only accept max 0,5W out.
Yes Flo, you are right. Surely i keep the power under 0,5 W. It's an issue but we try to do this..;)
Many people built and assemble parts to be ready on Es'Hailsat-2 for TX. But there's still a question : Are you able to apply a power regulation to avoid
angry "Leila" on your signal ? In my opinion most of Oscar-G1 operators try to do this regulating power on the transceiver. May be a way. But there's some some difficulties because for example TS2000 has a 5 W minimum, power on VHF and UHF (may be 4 4,5 w).. For several devices you need to reduce power form 40 to 45 dB. If you want to do a regulation thru power regulator of TS2000. its clear that you need reduce more decibel. Same issue with the amplifier. The Surplus market usually provide amplifier that accept maximum 13 dBm. My BU500 has an output of 0,5 W (or more depending to the driver power). Another issue to solve, another attenuator to insert between amplifier stage and the converter.... Some one has solved theese issues or have find a solution ? I've some doubt about commercial systems too, but this is another story...
Nice job !
Es’hailSat said that Es’hail-2, based on the DS-2000 platform, features “sophisticated anti-jamming capabilities” for its Ka-band payload. This technology enables them to locate the Jammer with very high precision...
I've a question for you. Are Amsat control team able after commissioning to switch on or off the transponders ?
Thanks for answer.
On chart is very interesting, but yesterday night I have been tried to install in Windows 10. It't too much complex for windows environment, you need to do some steps, but it isn't a dummy proof installation ! Seems more easier using a linux distro, in fact theres more and punctual instruction for the installation. In windows it's very hard. Tryed to search treads with more simple instruction. Total failure.
If some one has more simple instruction are welcome !
73 de Alex
Success. I tuned it on BADR-7 - 10.969000 IO receive this signal Audio is perfect image is not fluid at 100% but this is a step ahead. Thank you so much for your help DG0OPK ! YEs it isn't EsHailSat2 but help me to understand that Minitoiune run.
This is test referred to EsHailsat-2.
Hm? Which DVB-S beacon on 11.270? Which satellite do you want to receive from?
Es'Hailsat has beacon active during IOT, but may be are off. now.
Ok shoft test when AMSAT DVB-S2 will be active...
I'm bit frustrated due some issues to receive test DVB- S beacon at 11.270, Cannot receive with Minitiotune, and I don't know why. Signals from EB are so strong.
I Don't think is a pointing issue, starting have suspect on Minitiotuner Express.
But seems software works fine, the circuitry and the software passes all test.
Suggestion ? Hints ?
Interesting. I ignore that every satellite moves a bit from his position...
I got it and running well. Thank you for the helps.
Cool, You have done a good job. Today I have been started Minitiouner Sw, with MiniTiuoner Express, but I wasn't able to decode signal. In this version I cannot see pads to able the LNB power supply. >My version is a bit different compared with the pdf... But I tryed to use a bias tee, unforunately today I haven't a power supply of 16-18 v to obtain the right polatization (Horizontal). Okay I will try next days...
Bye ...Hope to see you on the bird.
73 de ik4idy.
Good morning all in south Sardinia (Cagliari), Es'Hail2 is very strong.
In monitor 11270H but at the moment seems to be off
Today 17kHz of telemetry subcarrier is moved from 10706 to 11205; this happen in various moments of the day..Are working..
I'm using 100cm parabolic, PLL LNB (55dB gain), 20m sat cable and R820T2
Yes Roberto I confirm your observation, the same for me, but signal in my case is lower due to lack of pointing :
Yes I think so. With that dish you should be able to get it much stronger.
However, pointing is now a bit of a waste of time as it is slowly drifting east.
Yes Rob you are right. But I taken the common fever to do some tests and checks...
But the challenge will be to transmit over the bird,
I'm looking forward to do my first qso.
73 de Alex