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Re: Rocky and Windows ME
KD5NWA
We are very glad to help, as a matter of fact, you just keep on adding features and we will go ahead and test it and give you more feedback.
Seriously, your software has some really outstanding features, the panoramic display, and the waterfall display are outstanding in ease of use and usability, Another feature that is really good is the automatic compensation for gain and phase. Thanks for your wonderful software, and keep it coming. At 08:48 PM 10/21/2005, Alex, VE3NEA wrote: Thank you for the good news, Nick. Rocky 1.07 seems to be stable. Since ICecil Bayona KD5NWA www.qrpradio.com I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ... |
Chaintech AV-710
KD5NWA
I just bought one of those cards and did a little more searching for
data.
It uses the VIA ENVY24 HT-S chip set not the PT set, but there a fly in the ointment. See the link below for specification details. The Devil hides in the details, and so it does with this board, the 192K sampling rates are for the digital ports only, the analog ports sample at 48KHz maximum. The outputs and inputs are 20 bit resolution and only the digital port supports the full 24 bits. Now if we could find a inexpensive card that used the VIA ENVY24 HT instead then you would have 24 bit in/out at 192KHz sampling for both analog and digital modes. Nonetheless for $23 it's not a bad card because of the DMA support which lowers the CPU usage and latency, and it has greater dynamic range than your typical 16 bit card. < >
Cecil Bayona |
Re: Rocky and Windows ME
Thank you for the good news, Nick. Rocky 1.07 seems to be stable. Since I released this version, there were no reports of its incompatibility with any sound cards.
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Many thanks to all those who sent me bug reports and logs. Without your help, I would be unable to make the WDM module work, I would not even know that there were problems. 73 Alex VE3NEA P.S. If Rocky 1.07 is still not working with your sound card, please let me know ASAP. Rocky 1.07 is working fine on WinME, at least on my PC. I missed the |
Re: Chaintech AV-710
KD5NWA
I'm not familiar with that particular model but while searching for a inexpensive sound card I found that not all 24 bit cards have 24 bit inputs. Many of the inexpensive 24 bit cards are 24 bits on the output only, the SR-40 would benefit from a 24 bit input, the output is what drives the speaker, 16 bits is good enough for that.
I tried doing a quick search on that board and the chipset (VIA ENVY 24PT) it uses to try to get a clue, the manufacturer only says it has 24 bit technology, but it doesn't make it clear if that includes the input. I did not find a whole lot of details, but some good things, many noted low CPU overhead of that board (it supports DMA transfers for low latency) compared to the common AC97 chip solutions, everyone praised the quality of the sound and the low overhead. I'm going to order one to try it out, I want to play with SDR a lot and I can't afford a Delta for every PC, $23 sounds about right, I have not liked the results with the Sound Blaster Cards. I finally broke down and ordered a Delta-44 today, $139 with free shipping, I should get it next week. I also already have the new kit for the Delta to allow it to use mini stereo connectors. At 01:56 PM 10/21/2005, you wrote: Anyone know if the software will support the Chaintech AV-710 PCI sound card?Cecil Bayona KD5NWA www.qrpradio.com I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ... |
Re different BPFs : Mulitband SoftRock
Bruce Beford
I am currently designing and building a multiband SoftRock from one
of my v4.0 kits. It will have switch-selectable 80,75,40 and 30M capability. I will switch between 4 osc crystals and 2 input filters for this. I have posted the values for an input stage that works well on 80M CW/75M SSB in the photos section. Look in the N1RX folder. I have already proven the concept, with softrocks running on each of these bands. The Oscillator crystals/center freqs are 14.3181/3.579 15.750/3.9375 28.224 (stock)/7.056 and 40.500/10.125 Mhz. I will wait for the V5.0 or later for higher freqs as the LO at 4x center freq becomes a bit of a problem above 30M. I am working out the details of the band switching now, based on parts I have on hand. A design goal is to have the whole thing fit into a "MityBox" made for a RockMite. I'll be sure to post details and photos as things come along. 73, Bruce N1RX --- In softrock40@..., windy10605@j... wrote: removal of the BPF parts (except the torroid), short L2, replace thecapacitors with a 1x4 and 1x2 header, and you have access to all the pointsexternally. Put what parts you want to try on a small 2x4 connector and plugit in. Not optimum without changing T1 but it sure is simple.header for power (attach Q1 on the back side) and interface it throughthe Q2 pins with a header (attach Q2 on the back side), remove thecrystal and parts not required. AD provides driver code to load DDS modules(serial or parallel) to a specified frequency. Load the frequency, set thesame frequency in Rocky and you are off to the races. Hint: a link from |
Re: different BPFs
KY1K
At 03:13 PM 10/21/2005, you wrote:
A few thoughts about simple existing SR-40 mods.......... Before Tony announced the Mark V softrock, I had intended to modify mine, allowing for LF and VLF operation. Since the toroids are inductors are physically larger at 60 KHz and 190 Khz, I planned to mount a 24 pin wide spaced zero insertion force DIP package to facilitate band changes. The larger area of the wide spaced DIP would have accommodated the transformer as well as the other tuning components for the front end. After Tony's announcement, I am planning on hardwiring the new components and dedicating the older softrock to a particular band/frequency. I can't wait to get the Mark V softrock! Regards, Art |
different BPFs
开云体育A few thoughts about simple existing SR-40 mods..........
?
The pin spacing of the C20, C21, and C22?capacitors sure allow removal
of the BPF parts (except the torroid), short L2, replace the capacitors with a
1x4 and 1x2 header, and you have access to all the points externally. Put what
parts you want to try on a small 2x4 connector and plug it in. Not optimum
without changing T1 but it sure is simple.
?
Take a DDS card and adapt it to the SR-40 via the Q1 pins with a header for
power (attach Q1 on the back side) and interface it through the Q2 pins with a
header (attach Q2 on the back side), remove the crystal and parts not required.
AD provides driver code to load DDS modules (serial or parallel) to a specified
frequency. Load the frequency, set the same frequency in Rocky and you are off
to the races. Hint: a link from "Rocky" frequency code to the AD frequency
software (or new serial/parallel link code) would be most
helpful.???
?
73 Kees K5BCQ |
Re: Chaintech AV-710
You guys are killing me!!!
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I'm lurking on a couple of SDR sites cause of an interest in PIC's and ham radio. I do computers for a living, and have a rule. No computer use at home. Real Radios have tubes, and my machine shop has no CNC or CAD. I beg,,, at least a link to a PIC controller instead of Intel inside? I'm going to have to get involved sooner or later I guess ;-) Maybe after the new shop/shack and an antenna of some sorts gets put up. de N7IVS At 11:56 AM 10/21/2005, you wrote:
Anyone know if the software will support the Chaintech AV-710 PCI sound card? |
Re: Chaintech AV-710
Anyone know if the software will support the Chaintech AV-710 PCI sound card?
Newegg has them for $23. The specs are 24bits, 192KHz, 8 channels! Finally got off my rear and got my softrock40 together. Tried it out yesterday with an 80 meter inverted vee for an antenna(very poor for 40meter). Very impressive even with my on-board 16bit sound. Heard several VE's on SSB and heard CW from W0,W8,W6, W7.(I am in north-central Idaho). Dave - WB6DHW |
Re: group buy, crystals
KY1K
At 05:26 PM 10/20/2005, you wrote:
Hi Art,OK, I've done some research, but there doesn't appear to be very good standardization in smt crystal packages other than they are small(er):>: The vendors seem to be specifying their own packaging. Probably the best we can do is to make a reasonable accommodation for therm in general. I'll send you some info by direct email. Yes, the band specific board will be available in greater quantityI hope you are ready for hotrock fever when you announce the Mark V's are available Tony! It sure looks to me like they are going to be immensely popular! I am needing to test the QSD at the higher frequency bands to seeJust looking at the relative numbers is enlightening, which is what I did (so far). A 3 nS difference between the switch enable and switch disable times represents a huge error at 2 meters....but matters very little at 7 Mhz. At 144 Mhz, the period of a single cycle is only 6.9 nS! I'm working on a 2 meter QSD using a different switch and trying to equalize the switching times by varying the Vcc of the switch with a MMIC hooked up to Vcc line of the analog switch. Not sure if it works, but a friend of mine who designs chips professionally says it is worth a try. So I thought I'd try it. I think a QSD based receiver on 2 meters would be very HOT. I very much wish I could afford to buy the Agilent MMIC based switches, which solve the consistency issue by being lightening fast. At 90 dollars per switch (spst), they are out of my price range hi hi. Further, they are only available without packaging, so one would have to attach wires and mount them also. I think there are 2 basic problems with lopsided turn on and turn off times. One is the sheer loss of the signal, which is lost because the switches are asleep when they should be in a different state. As the frequency increases, this problem increases.. The other is the variation in amplitude as a result of the timing variance itself. How can we null the opposite sideband if the I/Q amplitude variance is caused by the switching times being inconsistent? I am wanting to have an exciter function that will output at least200 mW is cool, but 20 mW is adequate for most users I'd think. I'd love a 200 mW output, QRP here I come! Hope we can keep the heating effects of the transmitter rf stage from causing thermal drift with varying key down duty cycles though. Regards, Art |
Re: SR-40/30 RTTY This AM [Moded ATS-3]
Chuck Carpenter
Oh, yes, right, moded to run RTTY on 30 meters ...Duh... He mentioned doing a DDS thing in one of his messages. Also he was running about 1 Watt when I was listening earlier.
Totally missed the point in your earlier message -- 10 MHz does not equal 10 meters! 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 |
Re: SR-40/30 RTTY This AM [Moded ATS-3]
Bruce Beford
Bill modified the ATS3 for RTTY rather than CW, using his own custom
software. It could always do 30M. (80,40,30,20) 73, Buce N1RX --- In softrock40@..., Chuck Carpenter <w5usj@9...> wrote: that sort of thing.30m today. Please give a listen on 10138 KHz and answer back in either RTTYor CW. Or, if you can't transmit, reception reports to bill at n4qa.comwould be greatly appreciated.to wrote:10M. Glad to hear the SoftRock is working well on 30M for you. for 10 10dBmeterRTTY this morning.around 1300 UTC. His CW ID was copyable at es 73abovethe noise. 50 years -|- 19 - K2OFN and 31 - W5USJ -|- Most fun = QRP since1984. www.w5usj.com hosted by Hamnutz.com -|- NeTxQRP www.netxqrp.com |
Re: SR-40/30 RTTY This AM [Moded ATS-3]
Chuck Carpenter
Nope, Bill has one modified to run on 30 meters. He like doing that sort of thing.
Here's his message posted on QRP-L... Hey, gang. I'm playing hookey today and testing the DDS_RTTY_ATS-3 project on 30m today. Please give a listen on 10138 KHz and answer back in either RTTY or CW. Or, if you can't transmit, reception reports to bill at n4qa.com would be greatly appreciated. Thanks and 72! Bill, N4QA At 02:40 PM 10/21/2005 +0000, you wrote: Chuck, I assume you mean Bill was on 30M RTTY- the ATS-3 can't go to 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 |
Re: SR-40/30 RTTY This AM
Bruce Beford
Chuck, I assume you mean Bill was on 30M RTTY- the ATS-3 can't go to
10M. Glad to hear the SoftRock is working well on 30M for you. 73, Bruce N1RX --- In softrock40@..., Chuck Carpenter <w5usj@9...> wrote: meter RTTY this morning.around 1300 UTC. His CW ID was copyable at 10dBabove the noise. |
SR-40/30 RTTY This AM
Chuck Carpenter
Listening to Bill, N4QA, in VA testing his DDS modified ATS-3 for 10 meter RTTY this morning.around 1300 UTC. His CW ID was copyable at 10dB above the noise.
I put a 10.115 crystal in the XG-1 and did a little check with that too. At 1uV the signal was 15dB above the noise. At 50uV, 62dB as close as I could interpolate. The Elecraft folks tell me that the signal level at 10 MHz will be within the same tolerance levels on either band. That seems right because it's the same oscillator and output parts they use for the XG-3 specs on 80, 40 and 20 meters. 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 |
Nice repository of scientific software
" 2.1) What is Netlib? The Netlib repository contains freely available software, documents, and databases of interest to the numerical, scientific computing, and other communities. The repository is maintained by AT&T Bell Laboratories, the University of Tennessee and Oak Ridge National Laboratory, and by colleagues world-wide. The collection is replicated at several sites around the world, automatically synchronized, to provide reliable and network efficient service to the global community." Much of SciPy is a thin layer of Python over the above software routines. 73 de Phil N8VB |
Re: Rocky and Windows ME
Hi Nick,
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There was one report that Rocky 1.05 did not work on WinME though the earlier versions did. I have released Rocky 1.07, and I hope I fixed the problem. Please see if it works on your system. 73 Alex VE3NEA Rocky 1.04 works with the Windows ME operating system. Prior to that |
Re: 29.000 mHz crystals
开云体育Surplus Sales of Nebraska::
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I received 2 crystals from them about a week
ago.
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73 Alex VE3NEA
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