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PowerSDR 1.4.5 Beta preview 2 - SoftRock Support built in
Bill Tracey
The latest PowerSDR software release (1.4.5 Beta Preview 2) has Soft Rock support built in! No more installing patch packages from me (until I get back to doing some experimenting).
The release notes for this release can be found at: My thanks to the folks at Flex-Radio for picking up the Soft Rock mods into the mainline code distribution. it saves me a lot of time not needing to merge Soft Rock changes into future releases of the code. Bill (kd5tfd) |
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Re: Desoldering
Thanks, Tony
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I hadn't though of that. That would be a lot easier. It's a small blue leaded cap labeled 104K X7R100. It looks like 0.1 inch lead spacing. Bill Dumke WB5TCO 509 15th Ave Green Bay, WI 54303 Thanks a bunch! Bill Tony Parks wrote: Hi Bill, |
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Wanted: SoftRock 40, Kit or Built
I'm looking for a SoftRock 40 to build (Or a Built one would be OK)to
do some experimentation with SDR. Anyone with one they could spare would really be appreciated! Please let me know the price with shipping to 17222. Thanks very much for any help! 72/73, Carl Morris, WN3DUG 5670 L.W.E. Fayetteville, PA 17222 cwmorris@... |
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Re: Desoldering
Tony Parks
Hi Bill,
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Just cut the capacitor off the board and I will send you a free replacement. I use a stainless steel needle I got out my wife's sewing stuff to clear plated through holes as I apply heat with the soldering iron. 73, Tony KB9YIG ----- Original Message -----
From: "Bill Dumke" <billd@...> To: <softrock40@...> Sent: Sunday, October 30, 2005 9:08 PM Subject: [softrock40] Desoldering I am looking for suggestions on how to desolder and remove a leaded |
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Desoldering
I am looking for suggestions on how to desolder and remove a leaded capacitor I soldered in the wrong place on the SoftRock 40. One suggestion a friend of mine gave me was to use plenty of solder and plenty of rosin. I had tried to remove it using my digital controlled iron set at 650 degrees F, but I couldn't get the solder to melt properly on the component side of the board. He said that was because I didn't have enough heat conduction to the other side because I didn't have enough solder in the hole to do that. And also I needed to set the iron to a higher temperature, like 700 or 800 degrees. (I was trying to use some 1/8 " solder wick to draw it out, but wasn't very successful.)
Does anyone know the maximum temperature that can be applied to a plated through hole in this PC board? I don't want to damage the plated through hole. Bill WB5TCO |
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Re: question
If you mean phase 2, that's what I get and I think that's about what it
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should be. No display means lack of stereo input into the computer. 73 - Mike WA8BXN -------Original Message-------
From: steve Date: 10/30/05 14:36:00 To: softrock40@... Subject: [softrock40] question Well my softrock is up and running every thing looks like its working right.But When I check phase display I get a good circular pattern but when I check phase 1 all I get is a scattered display. Is this normal? Steve |
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Re: Interference from PC?
Rein,
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When I operate on the low bands (40M thru 160M) I have to turn off my PC's. In fact I sometimes have had to unplug them completely, as the power supply isn't completely off when the On/Off switch is in the Off position. I found the problem to be caused by the computer's switching power supply. In fact I lost a power supply in one of my computers recenly, and replaced it with a better grade supply, and then was happy to find that the noise from that computer was gone. Try unplugging your computer completely and see if that quiets things down. Bob WA6UFQ --- In softrock40@..., "observer35" <rein0zn@i...> wrote:
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Re: URL to Rocky 1.1
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Re: URL to Rocky 1.1
Bill WB5TCO James Miller wrote: Good evening. What is the URL to the Rocky 1.1 download. |
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Re: New file uploaded to softrock40
--- In softrock40@..., Bill Dumke <billd@n...> wrote:
...................... Matching on the output is also important for a double balanced diodeI am not too sure about that, from what I read, the mixer ports have to be terminated into 50 ohms. Usually there is a diplexer at the IF port which "shorts" the other frequencies to ground via a 50 ohms resistor. Also if the post mixer amplifier is of the 2N3866 type, it is followed by a 6db pad. Regarding the RF port it is also a good idea to put a 3db pad between the preamp and the mixer, you loose a little gain but make the mixer happy. Jean-Claude Abauzit, PJ2BVU |
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Re: Rocky 1.1 released - new features
Alex,
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Just tried out 1.1 with the PowerSDR wav files. Now it works great. No feedback. Got all the surface mount stuff soldered to the SoftRock 40 board. Now I have to get the rest on, and then I will try Rocky with a real SoftRock 40. Thanks, Bill WB5TCO Alex, VE3NEA wrote: I have just released Rocky 1.1. Two new functions hav been added. |
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Re: Is the UBS-External Sound Card Works?
qrper723
Hi,Bruce,
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Thanks for information. Ext. SB will be okay also here with confidence! I'm waiting for that. So I have nothing to do about softrock this weekend. I will modify PIC-EL and DDS-Daughtercard form now. And I wil try 30m SWL next weekend.... Thanks for your shipping. 72! Hidehiko ja9mat I use a Soundblaster Audigy 2 NX USB external sound card on one of my |
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Re: New file uploaded to softrock40
Bill,
I use a 'constant impedance termination' that provides a 50 ohm termination at the IF frequency, as well as shunting unwanted frequencies to ground. I also use 3 dB pads on the RF input and IF output ports. So all ports are happy with the termination that I've provided. I am using a Level 7 device and providing it with 7 dBm of LO power. The preamp/mixer combination is working quite well. Bob WA6UFQ --- In softrock40@..., Bill Dumke <billd@n...> wrote: has a better noise figure and some gain besides to help overcome the IF noiseHF, VHF, and UHF, but they need to be biased and driven correctly with theconversion linear, whichand DDS problems we have been talking about.SoftRock in dB.it won't be, it will still degrade the 3rd order intermodulation For most HF operation, at least on the lower bands, I doubt you will ------------------------------------------------------------------------ ------------------------------------------------------------------------<mailto:softrock40-unsubscribe@...?subject=Unsubscribe>YAHOO! GROUPS LINKS ------------------------------------------------------------------------ <mailto:softrock40-unsubscribe@...?subject=Unsubscribe>YAHOO! GROUPS LINKS ------------------------------------------------------------------------ |
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SoftRock40 using Two Sound Cards
While playing around with Rocky
(nice program Alex THANKS) and the new PowerSDR, it came to my pea sized brain that I might be able to use two sound cards and both programs with ONE SoftRock! So, I hooked the audio cables up with a Y cable, one to the internal sound and the other to a USB SoundBlaster. Using Rocky with the internal sound card and PowerSDR with the USB card works, I just have a problem with the sound out! Which Speaker is Doing What??? With Rocky on the top of the screen and PowerSDR just below it, I can tune either program. Like I said the audio out needs work. Now, I wonder how many external stuff I can add??? Have Fun Guys and Girls Bruce K3CMZ |
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Re: Rocky 1.1 released - new features [Nice]
Chuck Carpenter
Alex,
Very nice and thanks for all your efforts. That you can select between single band and multiple bands is a nice touch too. Now to get a switch mounted so I can change bands without switching 30 and 40 mtr crystals. Probably saw the bat short on a mini toggle switch...[g] Round holes is easier to do with my limited tools. (A small slide switch would be better but I have a mini toggle.) Chuck Carpenter, W5USJ, Point, TX -|- Rains Co. -|- EM22cv -|- 72 es 73 50 years -|- 19 - K2OFN and 31 - W5USJ -|- Most fun = QRP since 1984. www.w5usj.com hosted by Hamnutz.com -|- NeTxQRP www.netxqrp.com |
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Re: Rocky 1.1 released - new features
Bruce Beford
Excellent, Alex!
As an owner of a multiband SoftRock, I thank you profusely! I look forward to trying it later this evening. Thanks once again for all your fine work. 73, Bruce N1RX --- In softrock40@..., "Alex, VE3NEA" <alshovk@d...> wrote: frequency display allows you to select one of the pre-defined bands. Foreach band, the LO frequency and I/Q balance info are stored. Run the programonce, then open Rocky.ini in a text editor and add/delete/edit the banddefinitions if necessary.I/Q signals or the output audio signal. The I/Q recording can be played backin Rocky. The recordings of the output signal can be played in MS MultimediaPlayer. Please enter your name, callsign and QTH in the Settings dialog.Rocky will put these data in the comments section of your wav recordings sothat other users will see at a glance when and where the recording was made,who made it, and what the LO frequency was. When playing an I/Q waverecording, you can view this info by moving your mouse cursor over the playbackprogress bar. |
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Re: New file uploaded to softrock40
Bob,
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That is the BIG problem of using a diode mixer. They are lossy. They are cheap and dirty, but for IM, intermodulation, performance they are not as good as a well designed active transistor mixer, which also has a better noise figure and some gain besides to help overcome the IF noise figure. JFETs have long been the mainstay of RF front end mixers at HF, VHF, and UHF, but they need to be biased and driven correctly with the LO power, and matched correctly on the output for best IM. Matching on the output is also important for a double balanced diode mixer to get best IM, but nobody ever does it. And I am not talking about a straight 50 Ohm load at all frequencies. You want a short circuit everywhere else except at your IF frequency for best IM performance. This holds for all mixers, inculding direct conversion mixers. Bill Bob Hillard wrote: Bill, |
Alex, VE3NEA
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