DATV-Express Project
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This forum is run by the BATC (British Amateur Television Club), it is service made freely available to all interested parties, please do not abuse this privilege.
Thank you
Re: DATV-Express Project
I just tried the latest version of DATV-Express with Lime-SDR USB and get a clean 40 dB MER @ 2 MS/s.
- Charles
- Charles
Re: DATV-Express Project
Hi Charles and all
Is it possible to make a linux version of DATV express or to adapt an old linux version to Pluto and Lime
thank you in advance
73
f4fdw laurent
Is it possible to make a linux version of DATV express or to adapt an old linux version to Pluto and Lime
thank you in advance
73
f4fdw laurent
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- Posts: 1236
- Joined: Wed Jan 06, 2016 9:46 am
Re: DATV-Express Project
Thanks for testing Charles. I'm puzzled to say the least, but a bit frazzled so I'll leave it over the christmas break and come back fresh(er).
73
Gareth
73
Gareth
Re: DATV-Express Project
Art WA8RMC reports that sales of MiniTiouner-Express, the DVB-S/DVB-S2 receiver/analyzer, continue to be brisk during December. Most sales were for distribution to EU customers. Units can be ordered by PayPal from the www.DATV-Express.com web site on the PURCHASE A PRODUCT link. The MiniTioune software for Windows (currently version v0.8s) from Jean-Pierre F6DZP can be downloaded free from http://www.vivadatv.org/viewtopic.php?f=60&t=521
Remember that you must first REGISTER/SIGN-IN to the DATV-Express web site in order to make a purchase.
The price for the MiniTiouner-Express fully tested unit is US$75 + shipping.
Shipping charge within USA is US$7.00
Shipping charge to EU is US$24.00 (including the VAT)
Shipping charge to other international countries is US$35.00
Charles G4GUO released an upgraded v1.25LP12 version of DATV-Express software that is compatible with the latest firmware from Lime MicroSystems. The Windows set-up.exe file and the NOTES file are now available at www.DATV-Express.com on the DOWNLOADS page. Many thanks to G4GUO for his efforts.
Ken W6HHC released an updated Express_DVB_Transmitter User Guide (Draft14) to emphasize that v1.25LP12 software for Windows has transitioned to cover four transmitter boards:
DATV-Express board
LimeSDR-USB (larger) board
LimeSDR-mini board
PLUTO-ADLM board
This User Guide available at www.DATV-Express.com on the DOWNLOADS page.
Ken is currently working on revising the MiniTiouner-Express User Guide to include the new power supply options available with the addition of J3 in RevB version of the MiniTiouner-Express unit.
Draft 14 of DATV-Express Software User Guide has been revised to cover the ability to be used with four different hardware exciter boards.
Charles G4GUO has now received first-article blank PCBs from China for a 250-watt 2.4 GHz power amplifier design that he plans to use for uplink on the Es'hail-2 DATV satellite. He is just waiting for the heatsinks he purchased in order to begin testing the new PA. Also, he has just ordered a 1.8 meter dish antenna for his home Es'hail-2 station. He plans to use dual band feeds to provide both uplink and downlink functions.
Project Speed is set to slow….de Ken W6HHC
Remember that you must first REGISTER/SIGN-IN to the DATV-Express web site in order to make a purchase.
The price for the MiniTiouner-Express fully tested unit is US$75 + shipping.
Shipping charge within USA is US$7.00
Shipping charge to EU is US$24.00 (including the VAT)
Shipping charge to other international countries is US$35.00
Charles G4GUO released an upgraded v1.25LP12 version of DATV-Express software that is compatible with the latest firmware from Lime MicroSystems. The Windows set-up.exe file and the NOTES file are now available at www.DATV-Express.com on the DOWNLOADS page. Many thanks to G4GUO for his efforts.
Ken W6HHC released an updated Express_DVB_Transmitter User Guide (Draft14) to emphasize that v1.25LP12 software for Windows has transitioned to cover four transmitter boards:
DATV-Express board
LimeSDR-USB (larger) board
LimeSDR-mini board
PLUTO-ADLM board
This User Guide available at www.DATV-Express.com on the DOWNLOADS page.
Ken is currently working on revising the MiniTiouner-Express User Guide to include the new power supply options available with the addition of J3 in RevB version of the MiniTiouner-Express unit.
Draft 14 of DATV-Express Software User Guide has been revised to cover the ability to be used with four different hardware exciter boards.
Charles G4GUO has now received first-article blank PCBs from China for a 250-watt 2.4 GHz power amplifier design that he plans to use for uplink on the Es'hail-2 DATV satellite. He is just waiting for the heatsinks he purchased in order to begin testing the new PA. Also, he has just ordered a 1.8 meter dish antenna for his home Es'hail-2 station. He plans to use dual band feeds to provide both uplink and downlink functions.
Project Speed is set to slow….de Ken W6HHC
Last edited by KenW6HHC on Fri Jan 04, 2019 6:24 pm, edited 2 times in total.
Re: DATV-Express Project
I have yet again completely sold out of EU stock so it will be 3 weeks before I get any more.
- Charles
- Charles
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- Posts: 90
- Joined: Thu Jul 21, 2011 9:50 am
Re: DATV-Express Project
1.25.P12 is running fine
I have tested the F6DZP recommendation to use the PLUTO at 3457 MHz, then to send the signal to an SMA to guide transition.
I receive the H3 harmonic at 10371 MHz with a standard PLL LNB (OL 9750MHz) and the Minitiouner Pro tuned at 621 MHz.
Thanks to Jean-Pierre
Image : on the scope the IF 621 MHz DATV signal from the LNB.
73's
Alain F1CJN
I have tested the F6DZP recommendation to use the PLUTO at 3457 MHz, then to send the signal to an SMA to guide transition.
I receive the H3 harmonic at 10371 MHz with a standard PLL LNB (OL 9750MHz) and the Minitiouner Pro tuned at 621 MHz.
Thanks to Jean-Pierre
Image : on the scope the IF 621 MHz DATV signal from the LNB.
73's
Alain F1CJN
Last edited by F1CJN_alain on Sun Jan 27, 2019 5:53 pm, edited 1 time in total.
Re: DATV-Express Project
Hi,
I have a couple of questions...
I am using DATV-Express 1.25lp12 on my dual core Win7 laptop and a Logitech QuickCam Pro 5000.
I connected a LimeSDR mini and was able to succesfully transmit DVB-S, H.262 down to 187 KS/s. decreasing the rate I get a runtime error.
the first question is:
- is 187 KS/s the limit of the software or the culprit is my PC?
second question:
- how can I transmit a video clip instead of the TS from the webcam?
thanks!
i2NDT Claudio
I have a couple of questions...
I am using DATV-Express 1.25lp12 on my dual core Win7 laptop and a Logitech QuickCam Pro 5000.
I connected a LimeSDR mini and was able to succesfully transmit DVB-S, H.262 down to 187 KS/s. decreasing the rate I get a runtime error.
the first question is:
- is 187 KS/s the limit of the software or the culprit is my PC?
second question:
- how can I transmit a video clip instead of the TS from the webcam?
thanks!
i2NDT Claudio
i2NDT Claudio
Dalmine, Italia
Dalmine, Italia
Re: DATV-Express Project
At low bitrates the H.262 encoder crashes that is what you are probably seeing. Try H.264
The only way to transmit a loop or pre-recorded video is to use vMix as an input to Express.
You can then use all vMix's features. The basic version of vMix is free but only supports SD (Standard Definition).
- Charles
The only way to transmit a loop or pre-recorded video is to use vMix as an input to Express.
You can then use all vMix's features. The basic version of vMix is free but only supports SD (Standard Definition).
- Charles