Re: [Flexradio] SDR1000 Frequency correction
Phil, I've had my oscillator in and out several times testing the GPSDO but haven't actually made any physical measurements. If tomorrow is good enough, I'll get some dimensions and take some photos for you and Bill. Bob, K5KDN -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Monday, January 30, 2006 7:52 PM To: Flexradio@flex-radio.biz Subject: [Flexradio] SDR1000 Frequency correction Bill KD5TFD and I are working on a project to correct the initial frequency error and temperature drift of the 200MHz VF oscillator in the SDR1000. To do so we need to tap off some of the 200MHz signal and feed it to another circuit board. My suggestion is to make a small PCB daughter board that the 200MHz oscillator plugs into and that in turn plugs into the existing mounting holes. Since I don't have an RFE board I don't know how much room there is between the top of the VF oscillator can and the bottom of the board above. Could someone please measure this and let me know. Also what restrictions are there in terms of the size of this daughter board, where we could bring cables out etc when the board stack is mounted in the SDR1000 enclosure. Photos would be ideal! If this proves to be impractical then we could mount the existing 200MHz oscillator on our PCB and feed it back to the SDR1000 via coax or LVDS. 73's Phil...VK6APH ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
Re: [Flexradio] SDR1000 Frequency correction
Phil I think the option of pulling the VF off the board and feeding the sig back to the same spot opens up a lot of possibilities which we had discussed here last month. The suggestion at that time was not associated with the Janus board, you and Bill are designing, but a method of temperature stabilizing ore even replacing the VF. That led to the possibilities of using a number of really interesting off the shelf MCXO and TCVCXO chips. With clever design on your board all those options and even voltage control from the GPS or 10 KHZ, or feeding back correction information to the PowerSDR software could be accommodated. Just a thought. Eric -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Monday, January 30, 2006 8:52 PM To: Flexradio@flex-radio.biz Subject: [Flexradio] SDR1000 Frequency correction Bill KD5TFD and I are working on a project to correct the initial frequency error and temperature drift of the 200MHz VF oscillator in the SDR1000. To do so we need to tap off some of the 200MHz signal and feed it to another circuit board. My suggestion is to make a small PCB daughter board that the 200MHz oscillator plugs into and that in turn plugs into the existing mounting holes. Since I don't have an RFE board I don't know how much room there is between the top of the VF oscillator can and the bottom of the board above. Could someone please measure this and let me know. Also what restrictions are there in terms of the size of this daughter board, where we could bring cables out etc when the board stack is mounted in the SDR1000 enclosure. Photos would be ideal! If this proves to be impractical then we could mount the existing 200MHz oscillator on our PCB and feed it back to the SDR1000 via coax or LVDS. 73's Phil...VK6APH ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
[Flexradio] SDR1000 Frequency correction
Bill KD5TFD and I are working on a project to correct the initial frequency error and temperature drift of the 200MHz VF oscillator in the SDR1000. To do so we need to tap off some of the 200MHz signal and feed it to another circuit board. My suggestion is to make a small PCB daughter board that the 200MHz oscillator plugs into and that in turn plugs into the existing mounting holes. Since I don't have an RFE board I don't know how much room there is between the top of the VF oscillator can and the bottom of the board above. Could someone please measure this and let me know. Also what restrictions are there in terms of the size of this daughter board, where we could bring cables out etc when the board stack is mounted in the SDR1000 enclosure. Photos would be ideal! If this proves to be impractical then we could mount the existing 200MHz oscillator on our PCB and feed it back to the SDR1000 via coax or LVDS. 73's Phil...VK6APH
Re: [Flexradio] FlexRadio Digest, Vol 9, Issue 29
- Original Message - From: <[EMAIL PROTECTED]> To: Sent: Sunday, January 29, 2006 1:00 PM Subject: FlexRadio Digest, Vol 9, Issue 29 Send FlexRadio mailing list submissions to FlexRadio@flex-radio.biz To subscribe or unsubscribe via the World Wide Web, visit http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz or, via email, send a message with subject or body 'help' to [EMAIL PROTECTED] You can reach the person managing the list at [EMAIL PROTECTED] When replying, please edit your Subject line so it is more specific than "Re: Contents of FlexRadio digest..." Today's Topics: 1. Re: Monitoring AM (Willi Reppel) 2. Re: mdb location in compiler (richard allen) 3. Re: HamSDR upload filesize increased to 40 MB (richard allen) 4. Re: mdb location in compiler (FlexRadio - Eric) 5. Re: Monitoring AM (FlexRadio - Eric) 6. Re: Companding, Compression and Equalizer (FlexRadio - Eric) 7. Proof-of-concept successful! (Phil Harman) 8. Re: Proof-of-concept successful! (Jim Lux) 9. TeamSpeak (Jerry Harley) 10. Frequency (Jerry Harley) 11. Re: Frequency (Jim Lux) 12. Re: TeamSpeak (Eric Ellison) 13. Re: Frequency (Jeff Anderson) -- Message: 1 Date: Sat, 28 Jan 2006 20:18:32 +0100 From: "Willi Reppel" <[EMAIL PROTECTED]> Subject: Re: [Flexradio] Monitoring AM To: "Bill Nagle" <[EMAIL PROTECTED]>, Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Bill, You get a kind of stereo impression with BIN enabled when receiving AM with USB, LSB or DSB mode. However you have to tune carefully to zero beat to suppress the carrier in order to avoid a beat note. Best 73 Willi - Original Message - From: "Bill Nagle" <[EMAIL PROTECTED]> To: Sent: Saturday, January 28, 2006 4:09 PM Subject: [Flexradio] Monitoring AM Seems that the MON button works on SSB but not on AM. It would be very useful to have it active in AM. Bill Nagle http://home.ptd.net/~w3duq ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com -- Message: 2 Date: Sat, 28 Jan 2006 20:18:06 -0600 From: richard allen <[EMAIL PROTECTED]> Subject: Re: [Flexradio] mdb location in compiler To: "Bill Nagle" <[EMAIL PROTECTED]> Cc: FlexRadio@flex-radio.biz Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="US-ASCII" It will be in the same folder as powersdr.exe. This will be either .. \bin\debug or .\.bin\release depending on how you compiled. I always use debug and never to a complete release. Regards, Richard W5SXD "Bill Nagle" <[EMAIL PROTECTED]> wrote: (01/28/2006 15:35) Hi Rich: Can you tell me where to look for the sdr1000 mdb database in the source folders? Bill Nagle http://home.ptd.net/~w3duq -- Message: 3 Date: Sat, 28 Jan 2006 20:50:21 -0600 From: richard allen <[EMAIL PROTECTED]> Subject: Re: [Flexradio] HamSDR upload filesize increased to 40 MB To: Dale Boresz <[EMAIL PROTECTED]> Cc: FlexRadio@flex-radio.biz Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="US-ASCII" The 7071/7073 'mystery' signal recording is at hamsdr in the AGCideas folders. 66 MB unzipped. Richard W5SXD Dale Boresz <[EMAIL PROTECTED]> wrote: (01/28/2006 15:23) Richard, I should have known better than to make even a simple code change, and not test it. The code was correctly limiting the upload length to 40MB, but the server was limiting it to approx. 16MB. That has been corrected - although I still haven't attempted to upload a 40 MB file because it takes a while with my lousy bandwidth. I will try it though. So, please try uploading your file again when you have a chance, and let me know if it worked. Thanks! 73, Dale richard allen wrote: Dale, I am trying to upload a 37,763 KB zip file containing a 66 MB .wav. It eats the file and then displays the unknown page message below. File is named "2006-01-26 11 24 00 PM.zip". http://www.hamsdr.com/ManageFiles.aspx (location) The page cannot be displayed The page you are looking for is currently unavailable. The Web site might be experiencing technical difficulties, or you may need to adjust your browser settings. What next? Thanks, Richard W5SXD Dale Boresz <[EMAIL PROTECTED]> wrote: (01/28/2006 08:01) Folks, The maximum filesize limit for uploads, has been increased from 10 MB to 40 MB. When uploading .wav and other media files, please consider compressing them first with a 'zip' utility. This will typically reduce a .wav file's size by about 30%. More importantly though, it will present the file as a 'compressed' file and NOT as a media file. Transfer problems may occur wh
[Flexradio] Trying to get a presentation on SDR
This was received earlier and I offered to post it to the reflector in case any of you are in that area and would be willing to do an SDR demo for him. Thanks. Eric Wachsmann FlexRadio Systems Hi, I am David Scholler, president of the Palos Verdes Amateur Radio club, K6PV. I am interested in your SD radios and wondering if you might have a representative or colleague that could give a presentation/demonstration on Software Defined Radio at one of our club meetings. We meet on the third Wednesday of every month at the Hesse Park community center in Rancho Palos Verdes, CA. (29301 Hawthorne Blvd). This is just south of Torrance, CA. Thank you Dave Scholler, KG6BPH (310) 416-5172 work (310) 373-8166 home
[Flexradio] Central States VHF Society Call for Papers/Presentations/Posters
Hi there:
We've had interesting SDR presentations at three CSVHFS conferences so far.
Each time, those presentations have received enthusiastic response because
most attendees recognize, even if they haven't made the plunge, that SDR is
NOW and the FUTURE.
I paste below our standard call for papers text. Should our conference be
100% SDR? No, but if some of you creative folks have presentations,
papers, or poster sessions that would be of interest to the VHF+
weak-signal crowd, consider sharing them at our conference or in our
Proceedings. If you have show-and-tell, our new Poster Session area
(chaperoned) may be perfect for that.
The points of contact are below. I won half an SDR at the prize table last
year and will "complete" that prize sometime in the next month or so. :-)
Again, please share your creative content with our conference!
Bruce Richardson W9FZ
Come to the Central States VHF Society 40th
Conference in Minneapolis on July 27-30, 2006!
Info at www.csvhfs.org
CALL for PAPERS
for the 40th Anniversary CSVHFS Conference
The Central States VHF Society is soliciting papers, presentations, and
Poster / table-top displays for the 40th Annual CSVHFS Conference to be
held in Bloomington, Minnesota (across from the Mall of America) on 27 - 29
July, 2006. Papers, presentations, and Posters on all aspects of
weak-signal VHF and above amateur radio are requested. You do not
need to attend the conference, nor present your paper, to have it
published in the Proceedings. Posters will be displayed during
the two days of the Conference.
TOPICS OF INTEREST:
include (but are not limited to):
ANTENNAS, including Modeling/Design, Arrays, and Control;
CONSTRUCTION OF EQUIPMENT, such as Transmitters, Receivers, and
Transverters;
RF AMPLIFIERS(power amps), including Single-band and Multi-band, Vaccum
Tube and solid-state;
PRE_AMPLIFIERS(low noise);
PROPAGATION, including Ducting, Sporadic E, and Meteor Scatter, etc.;
TEST EQUIPMENT,including Homebrew, using, and making measurements;
REGULATORY TOPICS;
OPERATING, including Contesting, Roving, and Dxpeditions;
EME;
DIGITAL SIGNAL PROCESSING (DSP);
SOFTWARE DEFINED RADIO(SDR);
DIGITAL MODES, such as WSJT, JT65, etc.
Generally, topics not related to weak signal VHF, such as FM
Repeaters and packet-radio, are not accepted for presentation
or publication. However, there are always exceptions.
Please contact either the Technical Program Chairman,
Jon Platt, W0ZQ, or the Proceedings Chairman,
Donn Baker, WA2VOI/0 at the the e-mail addresses below.
DEADLINE FOR SUBMISSIONS:
FOR THE PROCEEDINGS: Monday, 1 May 2006
FOR PRESENTATIONS at the conference: Monday, 3 July 2006
For NOTIFYING US you will have a Poster to be displayed at the
conference:
Monday, 3 July 2006. (Bring your poster with you on the 27th of
July. !)
FURTHER INFORMATION:
is available at the CSVHFS web site (www.csvhfs.org),
"The 2006 Conference," and "Guidance for Proceedings Authors,"
"Guidance for Presenters," and "Guidance for Table-top/Poster Displays."
CONTACTS:
(Note: (replace '(at)' with the @-sign to use the e-mail addresses)
Technical Program Chairman: Jon Platt, W0ZQ at W0ZQ(at)AOL.com
Proceedings Chairman: Donn Baker, WA2VOI/0 at
Proceedings.WA2VOI(at)OurTownUSA.net
Rev A Page 1 of 1 4 Jan 2006
73 Donn
WA2VOI/0
[Flexradio] SDR Power out
I just got on 60m over the weekend and found a problem setting my output power to 50 watts. I had to set power out to 6 before I was down to 50 watts. I would like to be able to adjust the power of the SDR down to very low QRP power in the future. Maybe we could have a setting for 5 watts max with minimum in the milli watts? Jerry wa2tti
[Flexradio] Preview 12 control for Delta 44 and Firebox
Dear FlexRadio customers, We have added automated setup for the Delta 44 and the FireBox in PowerSDR v1.4.5 Beta Preview 12. This is designed to prevent excessive drive voltage to the SDR-1000 hardware. If you are using either the Delta 44 or the FireBox, we highly recommend that you upgrade to Preview 12 or later. The SDR-1000 Operating Manual has been updated to be current with Preview 12 with the exception of the EQ screen shots. We expect to complete the next official release, v1.6, within the next couple of weeks. Preview 12 contains the complete functionality that will be in v1.6. Thanks and 73, Gerald K5SDR FlexRadio Systems
Re: [Flexradio] Auto Mute Idiosyncracies
Dale, This 60 ohms to ground most probably indicates a hardware fault. The parallel interface cannot drive that low impedance to the logical "1" level. Earlier, before I changed away from the parallel cable to USB connection, I had difficulties that I corrected by soldering a 3.3 kohm pull-up resistor between Vcc (pin X2-14) and S3 (pin X2-12). Actually the pin X2-12 is also connected to X1-15 on the PIO board, so make sure the parallel cable is disconnected when you measure the resistances. 73, Ahti OH2RZ - Original Message - From: "Dale Richardson" <[EMAIL PROTECTED]> To: "Flex Radio" Sent: Monday, January 30, 2006 1:17 AM Subject: [Flexradio] Auto Mute Idiosyncracies I still have not been able to get the auto mute function to work correctly. When you set up the SDR as receive only and enable the auto mute box on Setup->General->Options page the SDR goes into mute. This is the case when the plug in X2 is disconnected. An ohmmeter reading of X2-12 to ground indicates 60 ohms. If I set up the SDR with PTT disabled on the Setup->General->Options the receiver no longer mutes. Disabling the PTT also disables the auto mute function. Can anyone else verify this? I have tried various combinations of settings but nothing works. The 60 ohm reading seems low to me. Maybe a diode is blown. Any ideas? 73, Dale AA5XE ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://mail.flex-radio.biz/pipermail/flexradio_flex-radio.biz/ FlexRadio Homepage: http://www.flex-radio.com
