Hi two nice power meter has W1GHZ and provides PCB also.
Posts by SV1BDS
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Hi you can see these links :
Also you can measure SWR with AD8302.
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PA3FYM Hi again, OK I have to eliminate the IMD problem and implement a negative power supply for this project. The future projects are a WB and a portable version. An idea for Lars & LCD screen, if you have not done it yet, is except azimuth and elevation to calculate the grid locator.
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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 ; -)
Hi Remco, any news about both projects ?
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Hi, my proposal is to use a ferrite bead with a 1:1 ratio with 2 turns at each side.
For 739 is this solution.
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Hi, the most important problem of ground loops is that the equipment can be burned in a storm !!!
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Hi, 6 dB attenuator.
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Hi, optimized IMD block diagram.
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Hi, anyone know how much power is this circulator ?
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Hi, updated block diagram.
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Hi, a experimental 430 Mhz filter using a eBay tin box 11*7*4 cm . It has 30 MHz 3 dB BW, loss 3 dB.
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Hi George,
this is not official... it was an proposal/experiment by BATC ..
The proposal didn't really work, the chat in WebSDR is still the better variant. Or why not Duplex RB-DATV?
After recent experiences with FM stations overpowering the WB, our acceptance has declined. The proposal will not be pursued further. That's also why it will not be in the official bandplan.
73s Peter
QSL
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Hi, anyone to try FM talkback channel ?
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Hi, the next subproject is to operate the FM talkback channel at WB. A switch to the reprogrammed Attiny13A is only needed.
By the way a 1.4 m dish is found and I have a promise for an amplifier 2.2 GHz from 3G to operate DTV (Pluto exists).
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Hi, any experience with this spectrum analyzer with tracking link ?
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Hi, much better now at full power ...
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IS0GRB Is gateway working ?
Now it works ...
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Hi, another 1600 FreeDV image dump.
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PA3FYM Hi Remco, I later test receiving my own FreeDV signal and I see SNR improvement when I use full power. Now it is about 5-7. Waiting for comments for the OCXO... Good construction for the shoe construction !!!
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Hi, now with freedv with recomended 10 dB less power it seems better.