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Re: Sound card for a laptop
Thanks Larry Seems to be available here in the UK at reasonable prices -
I'll give it a try 73 Norman --- In softrock40@..., "Lawrence Libsch" <llibsch@...> wrote: EMU 0202 USB card. I also use a radio club antenna. Taking the Softrock, EMU 0202 and laptop works well. I had an hour long QSO from my FL QTH with a ham in Cleveland doing PSK with the club beam antenna on PSK. That was a thrill.
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attiny usb controler without the diodes
cesco12342000
The usb-firmware for the softrocks attiny controller is from here:
Reading the pages i did see there are two options for "level conversion" of the usb signals. One is what Tony uses with the zehner diodes, the other one is to do no level conversion at all but run the attiny at 3.6V instead of 5V. The attiny45 is a 20mhz chip running 16.5mhz, so there should be enough headroom for this even if it's "outside the spec". Running the attiny at 3.6V can be done inserting two diodes in the VCC line. Every diode will have 0.7v drop, together 1.4V. On the IIC side there sholud be no problem since the si570 is running at 3.3V anyway. Has someone already tried this ? obdev.at claims "less distorted signals" with the 3.6V method. |
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Re: Differences between the Xtall+Lite v8.3 and Xtall+Lite v9.0
Chris, I also have the V8.3 and I have upgraded it with the USB-I2C card for control of the VFO. I have tried to follow the development of the new V9.0 and these are my mental notes.
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The V9.0 has that capability built on to the main board and as I understand it now the 6 and 2 meter Band Pass Boards have been Beta tested and should soon be in production or already are. I don't know if these can be used with the V8.3 but I don't see why not. There is also now the 'big' BPF board which contains all of the filters for all of the band segments. That replaces the individual BPF boards used with the V8.3 and an option has just been developed which we expect to become available for solid state band switching for that board. I don't think that the new 'big' BPF can be mounted directly to the V8.3 and I don't think anyone has tried to wire it separately. I invite those involved to correct or add to any of this as you see fit. In a nut shell you would be going for VHF capability and a lot of convenience with the V9.0 but other than that there is no difference in coverage. I believe the VHF and LB boards are being offered at extra cost as well. Bruce, K2BET ------------- kd4pbj wrote:
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Re: Beta kits status, Motherboard FST3253 Switched
alexle188
Taking a closer look at the costs:
±á³¾³¾³¾¡..In comparison, Appliance (+homebrew)Adding the Switched LPF and the 12-24V supply required to be comparable (needed for the PA-100 SDR AMP to output 20W and meet with FCC requirements for harmonics): Switched LPF $69.00 12-24V PSU $20.00 Total $646.00 Alex |
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Re: Beta kits status, Motherboard FST3253 Switched
alexle188
Hi all,
Building your own all band 20W transceiver is certainly not an undertaking for the beginner, whether conventional or SDR. There is certainly a place for the SR Lite kits for people to get their feet wet, so to speak. My own journey started with the crystal controlled SR v6.2, and then the SR v8.3 with Si570 control. By that time I was ready to embark on an automatically switched all bander based on the SR v6.3. The total cost of my setup of about US$350 is quite fair value for the capability (btw, the computation of the comparative cost of the SDR1500 omitted the $69 switched LPF). The happiness, pride and self confidence gained is, of course, invaluable. With more experienced gained from the present Beta run, and the open source nature of the designs, it is my hope that someone, somewhere will be able to offer the same capabilities at a lower cost to the SDR enthusiast community in future. 73's Alex |
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Differences between the Xtall+Lite v8.3 and Xtall+Lite v9.0
kd4pbj
What are the main differences between the v8.3 and v9?
I have an 8.3 that I built over the summer and am contemplating buying and building a v9, but I am curious as to whether it would be a duplicate of functionality with my v8.3. I did hear that the v9 had a LF option. Thanks in advance, Chris KD4PBJ Raleigh, NC |
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Re: Where can I get a kit?
A good overview of the kits. Some are now retired. The latest features are currently under development and Beta testing. Take some time to digest these pages and you will be well informed.
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bet ----------- <> schealthsystems wrote:
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Re: Where can I get a kit?
Here is another location to scout out what is currently available with some instructions on where and how to purchase.
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<> bet ------------ schealthsystems wrote:
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Re: Where can I get a kit?
Here is a start. Order from Tony Parks. Funds can be sent via Pay Pal to him.
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<> Bruce, K2BET schealthsystems wrote:
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Re: V9.0 Lite two signals
sailingto
--- In softrock40@..., "sailingto" <sailingto@...> wrote:
Well group, after all my BIG talk the internal sound card in my notebook had a stereo line-in port, I'm not so sure now. On the V9.0 there are equal signals equal distance on both sides of the center freq peak. The peak is larger on the V9.0 than on the V6.2 Lite RX... or seems to be anyway. I spend the last couple hours playing with both radios and they BOTH have the signal on both sides of the center peak. I have been lisening to several AM BC stations on 40 meters and 9 mhz both. sounds pretty good. 40 meters just is not open much at my qth - even on the 756Pro. I did manage to pick up a couple of CW signals and the V9.0 seems to be ok on those signals - other than having the same signal on both sides of the center freq. I WILL be testing on the desktop over the weekend - BUT not all all sure that card is stereo input either. "IF" the SB PCI card gets here Friday maybe I can stick it in for testing. Thanks to all for comments - and a special thanks to Fred for that GREAT dll file to allow Winrad to control the Si570 chip. getting time for my beauty sleep. 73 de Ken H. K9FV |
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Re: Sound card for a laptop
Lawrence Libsch
¿ªÔÆÌåÓýKen -
?
??? In the Rocky View/Settings/Audio
dialogue box I use the EMU for the I/Q Inputs and the laptop sound card for
Audio Output device. I believe the EMU has only one soundcard. I can't offer any
suggestions why Rocky doesn't see your laptop soundcard, but I think someone
else in this group may have some suggestions. Best luck.
?
??? ???
??? ??? ??? ???
??? ??? ??? ???
??? ??? ??? ???
??? ??? ??? ???
??? ??? ??? ???
73,?? KG4LCF,?? Larry |
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Re: Acer Aspire One..
Ray J
How about the E-MU 0202. Has anyone tried this one out??
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it is stereo in and out at 192 khz the E-MU-0202 is around $100 the Roland/Edirol UA-1EX is $80 W9RAY John Moore wrote: Randy: --
This Message has been scanned By AVG Anti-Virus 8.0.169 |
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Re: Image Rejection
Peter
Jack
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I use a PCI Soundblaster, and as another poster has noted, I need to ofset one channel by one sample ("Delay right by one sample" in KGKSDR). However I have tried using PowerSDR and can not get rid of the image however hard I try!!! I can not get the image rejection calibration to work (PowerSDR-IF Stage V0.92) I have searched for some manual for this software, but I can not find anything to help! Have you tried with other software? I have success with KGKSDR, Rocky and SDRadio, all operating with no image (But not with PowerSDR!!!). Regards Peter G0RSQ --- In softrock40@..., "JACK SCHMIDLING" <K9ACT@...> wrote:
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Re: Acer Aspire One
Rob Brown
Hi Gents,
I recently bought a Samsung NC10 which is very similar. I saw a hack somewhere for switching the audio inputs. I'll try and find it again. Incidentally, Rocky takes approx. 33% CPU power on the NC270 Atom based netbooks. A killer portable softrock system if the hi-res audio can be sorted out! -Rob /* Sorry for any missed emails 95% of email is now spam!!! */ |
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Re: RXTX v6.3 no joy on 30M and up
Tony... That was the whole problem! I received the PA/F kit last
week for this band but haven't assembled it yet as I have been trying to figure out this problem first. I just wasn't thinking through the process very well... getting older by the day I suppose (and now a little wiser) Thank you and the others for the help! Jim KD8UT --- In softrock40@..., "Tony Parks" <kb9yig@...> wrote: filter. Thus an appropriate PA/Filter board needs to be plug on top of the RXTX board, or if no PA/Filter board is plugged in, a jumper needs to be placed between pins 1 and 5 of J2 on the RXTX board. will have |
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Re: RXTX v6.3 no joy on 30M and up
Tony Parks
¿ªÔÆÌåÓýHi Jim,
?
The RX antenna connection on the v6.3 board is
through the TX LP filter.? Thus an appropriate?PA/Filter board needs
to be plug on top of the RXTX board, or if no PA/Filter board is plugged in, a
jumper needs to be placed between pins 1 and 5 of J2 on the RXTX
board.
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73,
Tony KB9YIG
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Re: Acer Aspire One
My thanks to all who have participated in this post, it is a subject that has been occupying my mind over recent months.
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Here in Austrtalia the Acer was due to be shipped with a 6 cell battery as standard from October and I have been holding off waiting for that. I haven't seen any advertised as such yet though. Similarly, I have been waiting for Acer to do something about implementing the on-board SIM card slot that sits beneath the battery but no mention of it's addition to this netbook's features as yet either. Bill VK7MX Mark J. Dulcey wrote: Cecil Acuff wrote: |
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