Hi Clive, In the case of your 8.215MHZ IF frequency the crystal frequencies of 32.764 MHz or 32.956 MHz would provide the center frequencies 24 kHz offset from...
Good Morning, I want to ship the rest of the v7.0 kits this morning but I am missing information on what crystal frequency is desired with some of the kits. I...
Thanks for that Tony. I will certainly post my results. I will have a sort through my stock of crystals to see if I have anything suitable. I belive you said...
Just joined the group. I would like to connect 4 to 6 SoftRock receivers to individual antennas and do some kind of diversity receiver. A couple of questions...
Rick, If you are going to use a hardware rejection filter ahead of the SoftRock, it would have to be a crystal filter of some kind or other to get any decent...
Got a SoftRock V7 beta built and checked out today - looks pretty good. MDS of -112 dbm with a Delta 44 and -109 dbm with an Extigy. Pics and PowerSDR spec...
I think there are a number of approaches one could take here -- simple diversity would allow one to pick the receiver with the strongest signal and use it....
This morning 2m EME was a bit slow early. So I decided to try the 28Mhz Ver5 SoftRock that I have been playing with as the IF receiver. I normally use a Icom...
Very good Bill! Thanks for making the performance data measurements on the v7.0 SoftRock and sharing the nice pictures. All of the v7.0 kit orders have been...
Perfect images on V6. Using Rocky I can move the mixer line-in balance slider and see normal reactions such as extremes on both ends cusses the full...
Dick, I also had the problem of the missing channel on the V5. What I found was that the circuit board art had C12 shorted which resulted in that op-amp stage...
Rigged a probe from R8-X for dual trace. Checked clocks to the FST and they are 90deg out of phase. Hooked an xtal oscillator to the V6 to get a strong signal....
Hi Dick, Does Rocky tell you that the two L and R signals have about the same amplitude? Also what do you see when you go to I/Q balance? When T1 is wired...
Hi Bob, For 15 meters you could try C23 = C25 = 180 pF, C24 = 100 pF, L1= 10T of #26, L2 = 14T of #26, T1 windings are each 10T of #30. Also you will need a...
One other thing...capacitor C9 would need to go to 47 pF. ... From: "Tony Parks" <raparks@...> To: <softrock40@yahoogroups.com> Sent: Sunday, April 02,...
He Cecil, It all depends on if there is enough interest in the v7.0 to kit to do at least 200 kits. At the 200 level I can get the kit price down to about $18...
Well, you can count on me buying a couple, I have one friend I want to give one as a gift and I would want a couple to move to 15M and 12M. Keep us posted. ......
Hello All, The quad mixer files Dan has been trying to attach can be downloaded from http://www.nitehawk.com/rasmit/quad_mixers.zip 73 Rein W6/PA0ZN...
Hi Tony, count me in on the v7 kit. Ed Weal, K6QLH edweal@... Why Wait? Move to EarthLink. ... From: Tony Parks To: softrock40@yahoogroups.com Sent:...
Bill, What do you consider MDS. We should work to a standard like 3 dB increase in audio or 10 dB S+N/N also I see you have 10 KHz selected. How much does mds...
Rick, I'm using a Racal RA6830 as a front end for SDR. The Racal has dual 20 KHz roofing filters. I plan to run it against the soft rock 6 on 75 meters soon. i...
Also I was wondering how you even did it? Here with my SoftRock 40 and Rocky 1.41, when I connect it to a 50 Ohm load, rather than the antenna with a lot of...
Actually the spectrum screen shots do not match the MDS measurement -- they were for a -54 dbm input, just trying to show the level of spurs and gunk I'm...
Bill, So the PowerSDR software will allow for a fixed system gain, by turning off the AGC? That makes it more appropriate for us weak signal types, as opposed...
