Display MoreHello,
Some time ago I did read a nice article from a pluto boxed for qo100, it was a German ham I don't remember his call and I can't find the article. Anyone knows where to find ?
I tried via search but nothing.
Thanks in advance.
Rudi / ON7CL
Hi Rudi.
I use a aluminum box enclosure in my Adalm Pluto.
Link:
73
PY1SAN
Feng showed me the inside of his LNB. It has an RDA3566 chip, which doesn't have a 'symmetrical oscillator' (aka kalitron), so 'balanced' feeding does not work. It works perfectly for the NXP chips like I revealed/published in 2019 (or so).
For the RDA-chips there is an 'input' and 'output' pin (where injected levels differ around +20 dB (relative to the input).
I tested this balanced method only this year. Here the chip is RT320M.
Have you changed the TCXO of your Pluto ?
what brand and model of band pass filter is required after the pluto sdr?
also is there any suggestion for bias-t?
any tested models for buck converters as I am afraid of high noise or is that something not concern?
Some SAW BPF:
73 ! PY1SAN
Display MoreHi Bert,
I use Airspy R2 SDR, SSB SP-200 Preamp and ANjo Eggbeater.
It's only a very simple setup at the moment to run the SatNogs software, but it works very well to see what's going on in the 2m satellite band.
73s Peter
The signals recorded on your station's SATNOGS are strong. Impressive for a simple Eggbeater. Very good signals.
Tnx Marcel !
Unfortunately here dont have fleamarket with SSPA! I thinks in the future is possible. I buy some things of others countries.
Great !
I recorded a movie how my TRV works !!!!
Video unavailable.
This video is private.
Display MoreHello Wolfgang,
Thanks.
I have updated my description about the MHL21336 amplifier at www.dd1us.de
Kind regards
Matthias
Hi Matthias DD1US .
I made this amplifier using your schematic. I bought the module in september 2019 (Ebay) but i assembly this week. My module isnt counterfait. I supply with 28v in both pins and i have approximately 2 until 3 watts ( sorry, but i dont have how calibrate measurement equipment ).
73!
PY1SAN
GG77SN
Some info:
"These modules in turn utilise detectors such as the D8318 device from Analog Devices....
http://wiki.villagetelco.org/RF_Power_Meter ( RF_Power_Meter )
73 !
Hello together, hello Hans-Michael,
look also at https://dd0yr.de/Bilder/13cm-PA/13cmPowerPa.pdf .
73 Wilhelm
Great !
sorry I don't understand 000,000 frequency ???
Yes.
If I tune WB Beacon 742.600 mhz and restart dvb-s gui and start over, the screen will display 000.000, but I tune the last frequency (742.600). Why ? I dont know !
Tested with Adalm Pluto the WB Beacon and 90cm dish.
Tnx !
73
Sandro Ribeiro
PY1SAN - GG77SN
G0MJW: 8PSK modcodes are not supported in version 2.0.10. They were first introduced in version 2.0.12
But you are right about the UI Design. Many Laptops have 1366x768 as a resolution, but the window is about 947 pixels high. I'll try to move some stuff around and clean things up. Never thought about high DPI displays. I'll also address this problem soon.
I'll release a new version (2.0.13) today with a few fixes. In summary these are: 8PSK short frame support, GUI cleanups (and new tooltips), and support for offset tuning by clicking the right mouse button. There is also an overlay showing transponder bandwidth requested by DB8TF.
There is also a 100% performance update for FIR filtering (atleast on my CPU). These two changes will be useful for future extensions like multi transponder decoding.
Tnx SWL - markro92 !
Thanks Matthias for all descriptions !
73!
PY1SAN
Hi Jerry,
Thank you for your comment. I think my inputs are correct in LOTW. By the SAT mod is very optional and not taken into account in LOTW. I have more confirmation on eQSL. That would be so nice to have a common system instead of multiple services !
When subscribing to LOTW I thought that would be the more efficient. And it is for HF QSO...
LOTW & Sat´s: QO-100 QSO Confirmation eQSL, LoTW, DARC, etc.
The latest QO-100 Presentation is available as PDF here;
https://amsat-dl.org/eshail-2-amsat-phase-4-a/
or for direct download:
Hi Peter.
Congratulation to AMSAT-DL and QARS for the great satellite.
Yesterday, more one new brazilian station started to work on NB TP.
73 !
PY1SAN
Display MoreHi Sandro,
Is that right, please? What's the Idq please? If I know, it is needed around 0,3 to 0,5A idq at least. So there is max. 0,6A of active current as photo shows.
24V x 0,6A x 50% eff. = 7,2W out
I am running 28V with Idq 0,5A. The output is modified by idea DK5DN
and input is my idea - make PCB line (add wire and solder) thick as I can. I am reaching 28V/2,2A in key down. There is 2W input (or less!) from LZ5HP transverter. I dont know the output. No power meter SRI.
Hi Viliam.
I used idq around 0,33 amp.
My wattimeter have a slow rate measurement and i dont have how accuracy calibrate.
My tests i used 18 to 32 vdd. To 30 vdd, the current was 1,75 amp.
Some months ago i quited this project and started other LDMOS.
