Hi, a crystal filter will be needed...
MY QO100 SETUP
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Hi, a 90cm*1m offset dish found and now the Tx is increased by about 3 dB and the CW is now 1 dB less than the CW beacon. I try to use the old 80 cm for Rx but do not see important difs vs the 60 cm.
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SV1BDS George, how much transponder noise do you have ?
You mean transponder noise vs LNB noise in both cases ? NNR Noise to Noise Ratio !!!
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I mean the difference between your system noise and the received noise from the tpx.
E.g. pointing towards QO-100 you receive on 10488.000 MHz noise, and you receive noise on 10489.525 MHz.
How large is the difference ? -
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Hmm... that are almost equal pictures. Can you make two pictures where there is key down of the CW beacon in both cases?
Try to set the sliders such that you've 40 dB 'dynamic range' in the pictures to prevent that the beacon clamps with the 80cm dish?
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Hi, operational now at KG-STV, WinLink and FreeDV. Tx on FreeDV must be improved.
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Hi, operational now at KG-STV, WinLink and FreeDV. Tx on FreeDV must be improved.
... and SSTV
We had our QSO at 27.9. Is QSL via bureau OK ? I love paper cards !
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... and SSTV
We had our QSO at 27.9. Is QSL via bureau OK ? I love paper cards !
I am not active member of bureau ... Also I have to print QSL cards ... I have a lot of tasks , and Remco complains that I do not do so many QSO ... ADF4350 and ADE25 arrived and I have to ACK to eBay... The funny think is that I 'thought' that the station is complete ...
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The funny think is that I 'thought' that the station is complete ...
Hi George...
It is never complete. Always a WIP (Work In Progress).
73 de CT2IRJ -
... and SSTV
We had our QSO at 27.9. Is QSL via bureau OK ? I love paper cards !
Oh, I misstyped. Not SSTV, I meant SSB. Anyway, then I will not send a card which will be returned. I wish good work by your projects.
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Hi, starting point of two tones IMD test at full power.
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Hi, output from IC735.
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Hi, output from my upconverter 28 to 430 MHz.
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Hi, at 28 MHz after the 30 dB amplify using 30 dB attenuator.
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Hi, now with freedv with recomended 10 dB less power it seems better.
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I reckon when the 3IMD products are somewhat more than 30 dB down it's fine because the dynamic range of the NB tpx is also around 30 dB (provided you're not using to much uplink power and stay below LEILA ; -)
SV1BDS B.t.w. I received the CETC CTI OSC5A2B02 10 MHz OCXO today. Will take a little time to test it because I have too much projects to finish (like doubling the shelf surface with MDF in my shoe cabinet ; -)