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Art and all, You missed the point I was making - there are no birdies noted within the limited tuning range provided. This thing, as built will ONLY tune from 7.030 to 7.080. It was not designed as

OK, this person has experience, my views are different and contrary to this persons real life observations. Apparently there is no interference when operating the softrock-40 without shielding.

I have my softrock 40 running. It's plugged into an external USB hub for power, and hooked up to my B & W broadband folded dipole. I can find no birdies within it's limited tuning range - 7.030 to

I'm brand spankin' new to the group so didn't see the original thread. Expecting a sensitive receiver to operate just inches away from a wideband noise source is optimistic (IMHO). For best results,

Hi Rein, Actually I just plug my SoftRock into the USB socket on the front of my Dell 2400 machine. The little receiver plays quite nicely that way and others have had the same results with various

The supply from the USB connector is 5V. Are you using a separate power supply? Leon

Hi Tony, Thanks for your reply. From looking to the picture on one off the softrock pages I got the idea that the board was directly plugged into an USB connector of the computer. Looking more

Hi Rein, I have built about 25 of the v4.0 SoftRock40 receivers and find the PC noise does not cause much of a problem. When the receiver is calibrated to S9, (-73 dBM, 50 uV RMS), the baseline is

Not me. Either with the SoftRock or my other rigs. I elected to put a 78L05 in place of Q1 so I can't comment on that. Marsh, NC7V

Got my unit operational this afternoon! I am using the internal Xtal at this time. Hope to hook the DDS up soon. Now to learn how to use PowerSDR properly. Marsh, NC7V

Hi all, Just new to the group. Does anybody experience interference from the PC on 40 meters? What about noise and garbage on the 5 V USB line? 73 Rein

I read Bill, KD5TFD'S comments in the AMQRP Future directions. I wanted to do something similar. Be careful of the reference designators! They are from a previous version of the PCB/schematic

I just received my kit yesterday. I found that the L1 lead, not the body which goes to gnd, was shorted to the gnd plane on the bottom side of the board. I used an xacto knife to cut the bridge.