I have added the transmit circuitry.
I described building practices.
We listen to the receiver again.
I talk about plans for transmit/receive switching.
After this I will build another CCI 100 watt RF amplifier for use in the Dominican Republic.
For the first look at this rig see:
https://soldersmoke.blogspot.com/2024/10/bill-n2cqr-builds-yet-another.html
We will discuss this further in an upcoming Ham Radio Workbench Podcast, and in SolderSmoke Podcast #254 (mid-November 2024)
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The SBL-1 can also get burned out :) I took the metal cover off a broken one thinking it might be repairable and it was potted with some kind of white rubber - yuck.
ReplyDeleteI wonder if the receiver quiet might be due to the lack of AGC and preamp ? People seem to enjoy being able to report that a signal is XX db over 9 but then they will often complain about the noise - maybe it's all that gain from the preamp and AGC ?
Best Regards,
Chuck, WB9KZY
Chuck: There is no RF amplifier ahead of the mixer. On receive it is jus the antenna to the LP filter then to the BP filter and then the mixer. This helps. Also no OLEDs or Clocks or other noise generators. It does sound good. And it is good on TX. I just worked South Africa with it, using 3 W QRP. It is still on the bench! 73 Bill
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