Re: [Flexradio] Frequency coverage of 6000 rxvr?

30kHz... 0.03MHz. Thanks for catching this. Steve On Sunday, May 20, 2012, Jerry Flanders wrote: > The 6000 brochure states freq coverage of rxvr as 0.03 MHz to 77 MHz on > page 3 but from 0.3 MHz to 77 MHz on page 6. Which is it? > > Thanks > > Jerry W4UK > > > > _

Re: [Flexradio] Frequency adjustment

my options seamlessly. (Thanks for that, again, BTW!) Jim KJ2P > From: k9...@rnacs.com > To: jsqu...@msn.com; flexradio@flex-radio.biz > Subject: RE: [Flexradio] Frequency adjustment > Date: Fri, 4 May 2012 14:11:56 -0400 > > Jim, > > Do a "Reset to Factory Defaults"

Re: [Flexradio] Frequency adjustment

On Fri, May 4, 2012 at 10:38 AM, Jim Jannuzzo wrote: > > OK, now you've done it. Give the people a little information and they > come back for more.I did this, and get the error message "Peak is outside > valid range". Am I that far out of calibration? Yes. My 5000 without calibration was nev

Re: [Flexradio] Frequency adjustment

Jim, Do a "Reset to Factory Defaults" from the setup screen. 73, Ray, K9DUR http://k9dur.info From: Jim Jannuzzo [mailto:jsqu...@msn.com] Sent: Friday, May 04, 2012 1:38 PM To: K9DUR; flexradio@flex-radio.biz Subject: RE: [Flexradio] Frequency

Re: [Flexradio] Frequency adjustment

.000.000 . There is also a display next to the panadapter peak (bottom right) that reads 8.8 Hz . Align, return, fagedabowdih? Jim KJ2P > From: k9...@rnacs.com > To: kena...@gmail.com; freem...@rogers.com > Date: Fri, 4 May 2012 13:04:06 -0400 > CC: flexradio@flex-radio.biz >

Re: [Flexradio] Frequency adjustment

Ken, No, receiver calibration doesn't do it -- Freq Cal does. Michael, 1. Tune in WWV on 10MHz. 2. Open the "Setup" form. 3. Select the "General" & "Calibration" tabs. 4. Check the "Expert" box & answer "Yes" to the message that pops up. 5. Make certain that "Frequency" is set to "10.00". 6.

Re: [Flexradio] Frequency adjustment

Michael - I don't have my 5K on this PC, so this is from memory. Calibrate the receiver (it will look for WWV as I recall). Someplace in the setup menu. 73 Ken ac0ho On Fri, May 4, 2012 at 9:52 AM, Michael wrote: > I notice that my Flex 5000A is about 50 Hz off frequency. This seems t

Re: [Flexradio] Frequency synthesizer free to a good home...

That didn't take long! Thanks for the rapid responses, guys. On Fri, Nov 11, 2011 at 12:04 PM, William H. Fite wrote: > I have an HP 3336B frequency synthesizer/level generator that I will give > to any flexer just for packing/shipping cost.10Hz to 21MHz. The B model > has telco connectors o

Re: [Flexradio] Frequency?

Steven, Yes, the FLEX-3000 supports self-calibration. But no need to go to the calibration screen -- simply go to WWV & select "Phase" for the display. If the pattern is not rotating, then you are on frequency. 73, Ray, K9DUR http://k9dur.info ___

Re: [Flexradio] frequency

It's OK Brian...there is probably something wrong with all us us. On 7/15/2011 11:23 AM, Brian Lloyd wrote: On Fri, Jul 15, 2011 at 9:06 AM, Ray, K9DUR wrote: There is probably something wrong with me but monitoring CHU for hours and plotting the frequency variations is one of my favorite pas

Re: [Flexradio] frequency

On Fri, Jul 15, 2011 at 9:06 AM, Ray, K9DUR wrote: > George, > > Not a cheap crystal -- just a cheap ionosphere...hi..hi. > > While the transmitted frequency is dead on, the received frequency of > signals from WWV does vary slightly with propagation. The frequency > averaged over a period of ti

Re: [Flexradio] frequency

George, Not a cheap crystal -- just a cheap ionosphere...hi..hi. While the transmitted frequency is dead on, the received frequency of signals from WWV does vary slightly with propagation. The frequency averaged over a period of time will be accurate, however. 73, Ray, K9DUR http://k9dur.info

Re: [Flexradio] frequency

Good job Ignacio /Erik I found RWM schedule on the net: http://www.irkutsk.com/radio/tis.htm I don't know if it is current. Ignacio, EB4APL On 15/07/2011 16:30, EB4APL wrote: A problem with the Russian standard frequency stations like RWM is that they usually don't transmit a continuous car

Re: [Flexradio] frequency

I found RWM schedule on the net: http://www.irkutsk.com/radio/tis.htm I don't know if it is current. Ignacio, EB4APL On 15/07/2011 16:30, EB4APL wrote: A problem with the Russian standard frequency stations like RWM is that they usually don't transmit a continuous carrier but at some short p

Re: [Flexradio] frequency

Ok Tim. I'll keep fingers away, as there's now issue on my site with it :-) /Erik Once you have run the frequency calibration, you can use these techniques to fine tune the frequency accuracy, but you will find that the frequency calibration routine will get you very close. This KB article wa

Re: [Flexradio] frequency

Hi Ignacio Ok with RWM and how it does the trick. I found the schedule here: http://www.irkutsk.com/radio/tis.htm /Erik A problem with the Russian standard frequency stations like RWM is that they usually don't transmit a continuous carrier but at some short periods. Most of the time they k

Re: [Flexradio] frequency

On Fri, Jul 15, 2011 at 7:19 AM, Erik Jakobsen wrote: > >1. It must be at least as accurate as the radio, which implies an >accuracy better than about 1/2 Hz. > > > Ok Brian, and it's diffuclt to determine such an accuracy. > Not so much any more. There are lots of sources of very accura

Re: [Flexradio] frequency

Once you have run the frequency calibration, you can use these techniques to fine tune the frequency accuracy, but you will find that the frequency calibration routine will get you very close. This KB article was written when the frequency calibration routine was not as accurate as it is now.

Re: [Flexradio] frequency

A problem with the Russian standard frequency stations like RWM is that they usually don't transmit a continuous carrier but at some short periods. Most of the time they key the carrier on and off with the 1 pps or 10 pps pulses, quite difficult to use then for fine receiver calibrations so y

Re: [Flexradio] frequency

Original Message ---- Subject: Re: [Flexradio] frequency From: "Ray, K9DUR" mailto:k9...@rnacs.com>> Date: Fri, July 15, 2011 6:27 am To: mailto:t...@flexradio.com>>, mailto:flexradio@flex-radio.biz>> Tim, The other thing special about WWV i

Re: [Flexradio] frequency

On 15-07-2011 16:17, Brian Lloyd wrote: On Fri, Jul 15, 2011 at 12:26 AM, Erik Jakobsen > wrote: The most stable in this part of the world is the Russian qrg standard. But it's NOT on 10Mhz, bu on 9996. Then change the calibration frequency value to 9996000. Tw

Re: [Flexradio] frequency

On Fri, Jul 15, 2011 at 12:26 AM, Erik Jakobsen wrote: > The most stable in this part of the world is the Russian qrg standard. > But it's NOT on 10Mhz, bu on 9996. > Then change the calibration frequency value to 9996000. Two things matter and are required for the calibration to work: 1. It

Re: [Flexradio] frequency

Fine on that Tim and as guide use this or ? : http://kc.flexradio.com/KnowledgebaseArticle50175.aspx?Keywords=wwv /Erik Assuming the carrier is at 9996, change the frequency in the calibration form and the VFO-A to 9996 and run the calibration test. There is nothing special about WWV other th

Re: [Flexradio] frequency

For further clarification, I should have said... There is nothing special about WWV other than the carrier is at a particular KNOWN AND VERY ACCURATE frequency. ANY carrier at a known frequency can be used. -Tim --- Tim Ellison, W4TME Internet Systems Admin. & Customer Support Engineer Flex

Re: [Flexradio] frequency

Tim, The other thing special about WWV is that the frequency is not only known, but it is known VERY accurately. 73, Ray, K9DUR http://k9dur.info ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/

Re: [Flexradio] frequency

Assuming the carrier is at 9996, change the frequency in the calibration form and the VFO-A to 9996 and run the calibration test. There is nothing special about WWV other than the carrier is at a particular frequency. And carrier at a known frequency can be used. -Tim --- Tim Ellison, W4TME

Re: [Flexradio] frequency

On 15-07-2011 09:16, Brian Lloyd wrote: On Thu, Jul 14, 2011 at 8:52 PM, Erik Jakobsen > wrote: On 15-07-2011 04:13, Brian Lloyd wrote: On Thu, Jul 14, 2011 at 6:30 PM, Guy Harrismailto:w6...@guysfreehold.com>> wrote: Just h

Re: [Flexradio] frequency

On 15-07-2011 09:16, Brian Lloyd wrote: On Thu, Jul 14, 2011 at 8:52 PM, Erik Jakobsen > wrote: On 15-07-2011 04:13, Brian Lloyd wrote: On Thu, Jul 14, 2011 at 6:30 PM, Guy Harrismailto:w6...@guysfreehold.com>> wrote: Just h

Re: [Flexradio] frequency

On Thu, Jul 14, 2011 at 8:52 PM, Erik Jakobsen wrote: > On 15-07-2011 04:13, Brian Lloyd wrote: > >> On Thu, Jul 14, 2011 at 6:30 PM, Guy Harris >> wrote: >> >> >> Just how does one check the frequency calibration on a F5k? >>> >>> >>1. tune in WWV or CHU >> > And with the radio in which mo

Re: [Flexradio] frequency

On 15-07-2011 04:13, Brian Lloyd wrote: On Thu, Jul 14, 2011 at 6:30 PM, Guy Harris wrote: Just how does one check the frequency calibration on a F5k? 1. tune in WWV or CHU And with the radio in which mode ? 2. Setup>general>calibration 3. Select WWV frequency 4. press STA

Re: [Flexradio] frequency

Guy, It's really easy with WWV (or you can use any other high calibrated signal) , go to the Calibration tab of Setup, page 132 of the current Owners Guide, click the Expert box, with a good signal on WWV, at least a S5 on the meter, be sure to match the frequency box to the WWV or gen

Re: [Flexradio] frequency

On Thu, Jul 14, 2011 at 7:28 PM, Tim Ellison, W4TME wrote: > Or just tim the frequency calibration routine in the Setup form using a WWV > Frequency. > I think he is trying to determine if there is a problem. If PowerSDR is able to self-calibrate the radio to WWV with some kind of reasonable cl

Re: [Flexradio] frequency

Or just tim the frequency calibration routine in the Setup form using a WWV Frequency. -Tim Sent from my iPhone On Jul 14, 2011, at 10:13 PM, Brian Lloyd wrote: > On Thu, Jul 14, 2011 at 6:30 PM, Guy Harris wrote: > >> Just how does one check the frequency calibration on a F5k? >

Re: [Flexradio] frequency

On Thu, Jul 14, 2011 at 6:30 PM, Guy Harris wrote: > Just how does one check the frequency calibration on a F5k? > 1. tune in WWV or CHU 2. Setup>general>calibration 3. Select WWV frequency 4. press START 5. go look at the clock offset in setup>general>hardware config>DDS-Expe

Re: [Flexradio] frequency

Just how does one check the frequency calibration on a F5k? TIA, ~~Guy W6NJX On 7/14/2011 5:45 PM, Dudley Hurry wrote: Kevin, Make sure that you have followed the frequency calibration for your radio.. then check your radio.. If you must, you can offset the DDS , but that will effect

Re: [Flexradio] frequency

Use RIT to give you a 100 Hz offset. -Tim --- Tim Ellison, W4TME Internet Systems Admin. & Customer Support Engineer FlexRadio Systems^(TM) 4616 W Howard Ln Ste 1-150 Austin, TX 78728 Phone: 512-535-4713 Ext. 223 Email: t...@flexradio.com Web: www.flexradio.com

Re: [Flexradio] frequency

Kevin, Make sure that you have followed the frequency calibration for your radio.. then check your radio.. If you must, you can offset the DDS , but that will effect the other frequencies severely. 73, Dudley WA5QPZ On 7/14/2011 10:03 AM, Kevin Hobbs wrote: Hi I always find that I

Re: [Flexradio] Frequency Errors in the F5K and F3K

George, The VFO / DDS error can be computed, based on the PSDR settings and radio's clocking design. I do not know anything about the F5K or F3K designs. I developed my correction spreadsheet with the help of Analog Devices' datasheet and simulation tool for their AD9951 DDS chip. >From what

Re: [Flexradio] Frequency Measuring Test tomorrow

The only contests I like are the FMTs. Unfortunately I was busy moving my parents into assisted living last week. No opportunity to get ready for the FMT or time to actually participate. I didn't get home until it was all over. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 9568

Re: [Flexradio] Frequency Measuring Test tomorrow

I used only the Flex-5000 and its scope no fancy outboard frequency standard or software. Several signals seemed quite spongy probably due to Doppler. I had little confidence in any of my readings, which was quite frustrating. I didn't get home from work in time for the two 20 meter runs. On

Re: [Flexradio] Frequency Measuring Test tomorrow

Yes, a nice Flex showing, except for my own 14 Hz error. Recalculated this morning and get only 158 mHz error on the 160 run. NOT my Flex 5000a's fault - must have been the pencil I used (had trouble with them in elementary school, too, IIRC). Connie doesn't give Mulligans, darn it. Jerry W4UK

Re: [Flexradio] Frequency Measuring Test tomorrow

Results are out at www.k5cm.com . From my limited experience, the K5CM FMTs attract the real experts. Competition is a bit easier in the ARRL events. Another nice showing by the Flex contingent. Jeff K0OD ___ FlexRadio Systems Mailing List FlexRadio

Re: [Flexradio] Frequency Measuring Test coming up

Hi Dan Check out some of the links available from http://www.k5cm.com/ . Some tips there on using simple equipment as well as some of the aids like spectrum lab. I just tune USB below the unknown freq and use FLDIGI to measure the audio tone then process FLDIGI's output csv file through excel

Re: [Flexradio] Frequency Off?

I am working on getting those questions answered from "the source". -Tim --- W4TME FlexRadio Systems - Info Management Admin. "Tune in Excitement" On 10/29/2009 10:19 AM, John Ackermann N8UR wrote: I've used the F5K with an external reference and can verify that it works; you can see WWV's carr

Re: [Flexradio] Frequency change by 'slidingacrosspanadapter'

Amen Brother! I can second that as a long-time RF engineering ATE systems development engineer/manager. One 2-plus hour conversation with Gerald last year at Central States VHF convinced me that he and his team have their collective "stuff" in one sock and that they don't do anything that isn't t

Re: [Flexradio] Frequency change by "sliding across panadapter"

-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Larry da Ponte Sent: Friday, May 22, 2009 10:08 PM To: NZ8J Cc: flexra...@flex-radio. Biz Subject: Re: [Flexradio] Frequency change by "sliding across panadapter" I had a similar problem with the pan adapter and cleared it by res

Re: [Flexradio] Frequency change by "sliding across panadapter"

I had a similar problem with the pan adapter and cleared it by resetting the database, down side was having to reenter all my configuration. On Fri, May 22, 2009 at 2:05 PM, NZ8J wrote: > Wasn't really sure how to title this. Up until a day or so ago I was > able to smoothly change the freq on m

Re: [Flexradio] Frequency display

I knew the answer would be that I was doing something stupid!!! I had clicked the xvtr rf tx and that prevented it doing what I wanted it to do! Many thanks Paul David >>> "Paul Radge" 21/04/2009 11:33 >>> i should be able to answer this one but someone should verify it. click the XVTR's but

Re: [Flexradio] Frequency display

i should be able to answer this one but someone should verify it. click the XVTR's button and assign button zero to the parameters you want and LO offset if you know itdon't click "xvtr rf tx" at the end. Then click VHF button front panel to find your created band. make sure under general

Re: [Flexradio] Frequency tuning stops working

 I'm thinking your existing softrock install may not see the 5000A correctly.   Just install Power SDR in a new directory like C:\Power-Flex.  I just brought mine on line last night with XP and Vista32 without issue using a dual boot setup. Cliff  AB2ZS --- On Mon, 1/19/09, W7CE wrote: From:

Re: [Flexradio] Frequency tuning stops working

Clay, Double check the firmware in the General tab. You should have firmware 1.3.0.0 loaded to work with PowerSDR 1.16.1. Next check the buffer in the FireWire driver (3.2.0.1556) that's the blue Flex 5000 Icon on your desktop, you should have the buffer set to 2048 or maybe 1024. 512

Re: [Flexradio] Frequency Question

Don, I think that you covered up the Window that says where the recording was stored in, you have to say OK to it, you were tuning, so it went behind the PowerSDR console, as long as that splash window was setting there with the OK on it, you would not be able to tune the radio.. This is

Re: [Flexradio] Frequency Question

I just found another issue. I am using 1.10.4 PSDR and after I record for a while and stop the recording I can not change the frequency. I can change the frequency in VFO A and I can change the frequency on the panadaptor, however, the actual signal will not change. I was recording a signal

Re: [Flexradio] Frequency Question

[ I forget to send this to the all of the reflectors ] Don, In ASFK, the actual transmitted signal is the reading of the VFO in addition to the frequency of the tone being generated. For USB ASFK it is the VFO frequency plus the frequency of the tone and in LSB it is the VFO frequency minus the

Re: [Flexradio] Frequency for CW and SSB

Bernhard Hailer, DL4MHK/AE6YN wrote: > I like however Frank's suggestion of making it configurable. It's just > software... :-) The suggestion was a bit of a tweak at Eric, KE5DTO. Solving this task transparently and with complete generality requires a forward-chaining inference engine -- in sho

Re: [Flexradio] Frequency for CW and SSB

Mike, this was why I asked this question - so there is a good reason for having this feature. I like however Frank's suggestion of making it configurable. It's just software... :-) 73! Bernhard, AE6YN Also schrieb Mike King - KM0T am Montag 16 Juli 2007 zum Thema "

Re: [Flexradio] Frequency for CW and SSB

Well, here is my 2 cents. It may be a nuisance in general operating but its a must for weak signal microwaves as well as DXing. If its a problem for mixed mode, its because everyone has differnt radios or set ups are different. If everyone had CWU and USB or CWL and LSB then it would normall

Re: [Flexradio] Frequency for CW and SSB

Frank, As to the CW, I agree. I head up one of the two VE teams in our area. More & more of our no-code Techs are upgrading to General and then getting on CW. 73, Ray, K9DUR ___ FlexRadio mailing list FlexRadio@flex-radio.biz http://mail.flex-radio

Re: [Flexradio] Frequency for CW and SSB

Philip M. Lanese wrote: > I think the logical argument is/was: You use the sideband appropriate for the > band when calling CQ on SSB. > If someone replies using CW on the same sideband at least you may hear him > and, > if you still know Morse, > only have to push one button to answer on CW. Y

Re: [Flexradio] Frequency for CW and SSB

Frank I think the logical argument is/was: You use the sideband appropriate for the band when calling CQ on SSB. If someone replies using CW on the same sideband at least you may hear him and, if you still know Morse, only have to push one button to answer on CW. It is probably less of a deal if

Re: [Flexradio] Frequency for CW and SSB

On 7/14/07, Bernhard Hailer, DL4MHK/AE6YN <[EMAIL PROTECTED]> wrote: > > Is there a purpose behind this scheme? Is it configurable anywhere? I > haven't > seen this with other radios... My Yaesu radios do this, sort of...the idea being that you can switch back and forth between modes on the same

Re: [Flexradio] Frequency problem with new bought SDR-1000

[EMAIL PROTECTED] wrote: > Hello to all. > I'm new with the SDR and a think there is a problem. > > Equipment: SDR-100 + ATU + 100W PA + 2m XVTR > > When i check the receive frequency it changes from time to time. The > difference to a reference transceiver is up to -120kHz and it's not possible

Re: [Flexradio] Frequency Calibration

Yes, ageing is the fastest te fist few month of the life of the Xtal See as an example http://www.golledge.com/pdf/products/xtl_ld/hc49.pdf Calibration 30ppm (standard) Ageing

Re: [Flexradio] Frequency Calibration

At 02:06 PM 5/28/2007, Bob Maser wrote: >Mine started in the -150 range and 6 months later, is -2680 and continuing >lower. Maybe this is Flex's way to make money in the after market selling >replacement crystal oscillators. Surely you jest. Actually, the beauty of the SDR1000 is that you don't

Re: [Flexradio] Frequency Calibration

Thanks for the tip! - Original Message - From: "Bob Maser" <[EMAIL PROTECTED]> To: "Frank Mayer" <[EMAIL PROTECTED]>; Sent: Monday, May 28, 2007 5:06 PM Subject: Re: [Flexradio] Frequency Calibration > Mine started in the -150 range and 6 months lat

Re: [Flexradio] Frequency Calibration

PROTECTED]> ; pa0pvn(a)gmail.com ; pa0pvn(a)amsat.org . Van: [EMAIL PROTECTED] namens Bob Maser Verzonden: ma 28-5-2007 23:06 Aan: Frank Mayer; flexradio@flex-radio.biz Onderwerp: Re: [Flexradio] Frequency Calibration Mine started in the -150 range and 6

Re: [Flexradio] Frequency Calibration

Frank .. all crystals change frequency with age. The change should be less and less with time and in the same direction, until it settles down. I would say that what you are seeing is quite normal. If you want to worry about something consider if the air filter catching enough dust! The real qu

Re: [Flexradio] Frequency Calibration

Mine started in the -150 range and 6 months later, is -2680 and continuing lower. Maybe this is Flex's way to make money in the after market selling replacement crystal oscillators. You can always buy a Bliley OCXO for $400. Bob W6TR - Original Message - From: "Frank Mayer" <[EMAIL P

Re: [Flexradio] Frequency Calibration Problem

I encountered exactly this problem years ago when using a $50,000 high-end spectrum analyzer (at least it was back then - HP 8560 series) to automatically characterize a wideband free-running VCO's tuning range, tuning slope, harmonics, etc. across its entire tuning range (before the days of the fa

Re: [Flexradio] Frequency Calibration Problem

So have I, but mine is always off by 7 Hz when you calibrate. At 02:45 PM 1/17/2007, Tim Ellison wrote: >I have observed the same thing that you have Larry. > >-Tim > >Integrated Technical Services >www.itsco.com > >"Si fractum non sit, id reficere" >-Unknown Roman consultant > >-Original

Re: [Flexradio] Frequency Calibration Problem

I have observed the same thing that you have Larry. -Tim Integrated Technical Services www.itsco.com "Si fractum non sit, id reficere" -Unknown Roman consultant -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Larry W8ER Sent: Wednesday, January 17

Re: [Flexradio] Frequency Calibration Problem

It's definitely not just your problem. The display code changed in the latest versions to enable the zoom/pan features that came along with the wider display. Because of this, we have to use a more flexible manner of converting a pixel on the display to a frequency. Unfortunately the resolution

Re: [Flexradio] Frequency error

EB4APL escribió: > David Blaschke wrote: > >> I used the SDR-1000 exclusively during the EME contest. I found one >> troubling fault: Often after restarting the radio, I would set the >> frequency to 144.129, only to find that it was really transmitting on >> 144.141. I had to restart the rad

Re: [Flexradio] Frequency error

David Blaschke wrote: > I used the SDR-1000 exclusively during the EME contest. I found one > troubling fault: Often after restarting the radio, I would set the > frequency to 144.129, only to find that it was really transmitting on > 144.141. I had to restart the radio to clear this problem. It

Re: [Flexradio] Frequency calibration, measurement of unknowns with SDR1000Re: Question regarding commercial AM broadcasters' carrieraccuracy

Mike, Thanks! I figured there must be at least one station engineer on the list! Mark -Original Message- From: Mike Naruta [mailto:[EMAIL PROTECTED] Sent: Tuesday, November 07, 2006 1:42 PM To: Jim Lux Cc: Eric Wachsmann; 'Mark Amos'; flexradio@flex-radio.biz Subject: Re:

Re: [Flexradio] Frequency calibration, measurement of unknowns with SDR1000Re: Question regarding commercial AM broadcasters' carrieraccuracy

At 10:42 AM 11/7/2006, Mike Naruta wrote: >When I was chiefing, I think the AM tolerance was 20 Hertz. Still is, that's the FCC spec. Might want to look at http://www.w3eee.com/kfi.htm for an interesting discussion of this.. errors of 1 Hz aren't unusual.

Re: [Flexradio] Frequency calibration, measurement of unknowns with SDR1000Re: Question regarding commercial AM broadcasters' carrieraccuracy

When I was chiefing, I think the AM tolerance was 20 Hertz. To tweak it, I would have to shut down a transmitter, open the door, and adjust the trimmer. They did not like me taking the station down, or switching to the auxiliary transmitter, so I just checked frequency occasionally. We also had qu

Re: [Flexradio] Frequency Calibration on Recent SVN's

I use the Phase 1 display and SAM mode. Use the Freq Cal button to get close. On the Hardware Config tab you can use the up and down on the DDS Clock Offset to jump by tens until you get the pattern to rotate slowly clockwise and counter-clockwise. Then you can type in values in between to get

Re: [Flexradio] Frequency Calibration on Recent SVN's

] [mailto:[EMAIL PROTECTED] On Behalf Of John Hansen Sent: Sunday, September 10, 2006 1:42 PM Cc: flexradio@flex-radio.biz Subject: Re: [Flexradio] Frequency Calibration on Recent SVN's FWIW, I found that if I used the WWV signal at 15 MHz the calibration procedure appeared to work. If I try it

Re: [Flexradio] Frequency Calibration on Recent SVN's

FWIW, I found that if I used the WWV signal at 15 MHz the calibration procedure appeared to work. If I try it at 10 MHz, I get the error referenced in my previous message. The 10 MHz value appears to be broken in the current SVN version. Thanks, everyone, for the suggestions. John W2FS

Re: [Flexradio] Frequency Calibration on Recent SVN's

Exactly Another weird little thing I've noticed when tuning using DSB is in the phase display mode. According to which side of center your on the display will move in a clockwise or counter-clockwise direction. I think ideally it should be completely stopped and inthe middle of the display but my r

Re: [Flexradio] Frequency Calibration on Recent SVN's

At 10:17 AM 9/10/2006, Tim Ellison wrote: >Just to add to Jimmy's comments. > >After allowing the SDR-1k to warm up for hours, I tried the DSB method >described here where you zero beat the constant tone with ticks (not >just the ticks alone). > >After calibrating from wwv using 15.0 MHz, the DSB m

Re: [Flexradio] Frequency Calibration on Recent SVN's

On 9/10/06, Tim Ellison <[EMAIL PROTECTED]> wrote: > Now the real question: is this a problem with the calibration routine of > just an anomaly of using a frequency standard that is effected by > atmospheric and solar factors? > I have had problems before when the signal was not sufficient. I su

Re: [Flexradio] Frequency Calibration on Recent SVN's

ge- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jimmy Jones Sent: Sunday, September 10, 2006 12:15 PM To: flexradio@flex-radio.biz Subject: Re: [Flexradio] Frequency Calibration on Recent SVN's I've noticed that the software does not cal wwv properly for some time now

Re: [Flexradio] Frequency Calibration on Recent SVN's

I've noticed that the software does not cal wwv properly for some time now, On my radio it is always been down the band some. There is an absolute no fail method of calibrating wwv that I've found through the help of some of my buds. I use double sideband to manually calibrate and it's a completely

Re: [Flexradio] Frequency Calibration on Recent SVN's

It is on the Flex support page http://support.flex-radio.com The Bug Tracker is : http://support.flex-radio.com/NewIssue.aspx?it=b (you have to log in with an account first to access the Bug Tracker) -Tim --- Integrated Technical Services "Too much of everything is just enough." -Bob Barlow

Re: [Flexradio] Frequency Standard for Calibration of SDR-1000

Jon, I fully understand about the arthritic hands. I do not have that problem, but normally use a lighted magnifier to help out the tri-focals (Hi..Hi). I find the Elecraft unit very useful for calibrating, not only for image rejection as Eric alluded to, but also for calibrating the S-Meter.

Re: [Flexradio] Frequency Standard for Calibration of SDR-1000

WWV will work fine to calibrate the frequency. More importantly, you need a stable strong signal source for image calibration. You can use another rig's transmitter to do this though. Eric Wachsmann FlexRadio Systems > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECT

Re: [Flexradio] frequency calibration

Yesterday I performed all three calibration routines with 1.6.0 (I had not re-done them since beta 14) and they seemed to work very smoothly indeed. The PA calibration seemed to work faster than ever before. It might be worth a 'cold' installation when upgrading to 1.6.x!

Re: [Flexradio] frequency calibration

esult. Pete. N3EVL > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Eric > Wachsmann - FlexRadio > Sent: Tuesday, April 18, 2006 1:50 PM > To: 'Jeff Griffin'; 'Reflector Flex-Radio' > Subject: Re: [Flexrad

Re: [Flexradio] frequency calibration

Jeff, What version of the software are you using? I would recommend using v1.6.0 as the calibration routines were rewritten and are working better than ever now. There are still some small issues that we are looking into, but for the most part, v1.6.0 should be very steady on the calibrations.

Re: [Flexradio] Frequency on AM

One of the most helpful things (to me) that has come from this group has been the occassional well thought out treatise on "we should do things this way" My favorite examples are 1) Phil Harman's paper on agc which has led to a great improvement in that area (and will lead to more) and 2) the

Re: [Flexradio] Frequency on AM

Mike, Good tip. I reversed two phone plugs going into my Fire Box. Now I could zero the TX image when on AM. As measured on the spectrum analyzer, on AM, while transmitting into the dummy load, the image at 7.0785 Khz is 40 dB below the signal at 7.1 Mhz. Image down the same on CW. Sett

Re: [Flexradio] Frequency on AM

I just used a knife and whittled away the plastic near the end of the plug. No interference on fit now. Mike - AA8K Mike WA8BXN wrote: I had a problem of transmitting two AM signals at the same time, one of the audio cables was not firmly seated in the SDR-1000. One of these days I ought to ta

Re: [Flexradio] Frequency on AM

I had a problem of transmitting two AM signals at the same time, one of the audio cables was not firmly seated in the SDR-1000. One of these days I ought to take it apart and enlarge the holes in the chassis so that is less likely to happen. If you just got one signal on 3.878 and little on 3.9, th

Re: [Flexradio] Frequency

Jim, Just sitting there - It always happens and only once, after that everything is stable. My DDS has the heat sink (ECO-ed) so I still suspect it is just an unusual behavior of my oscillator. Kurt KC9FOL Jim Lux wrote: At 10:00 AM 1/29/2006, Kurt Vangsness wrote: John, I see simila

Re: [Flexradio] Frequency

Hi Jerry, I had a frequency stability problem, not exactly as yours but both may be related. The symptoms was the stations appeared very displaced about 50 % the times I powered up the radio. Meanwhile I was figuring out what was happening with the calibration I discovered that unpluggin

Re: [Flexradio] Frequency

At 10:00 AM 1/29/2006, Kurt Vangsness wrote: John, I see similar behavior. From a cold start I'm off freq by hundreds of HZ and after something like 2 to 3 minutes there is a sudden shift and everthing is on freq and relatively stable. I've always been surprised that it is such a sudden shift and

Re: [Flexradio] Frequency

At 09:06 AM 1/29/2006, Jerry Harley wrote: Jim Lux wrote: At 07:25 AM 1/29/2006, Jerry Harley wrote: I know this has been beaten to death but I never saw anyone say what they are experiencing. I had a big problem in the beginning it was off by 278kc, after the component change I'm off 200 and

Re: [Flexradio] Frequency

John, I see similar behavior. From a cold start I'm off freq by hundreds of HZ and after something like 2 to 3 minutes there is a sudden shift and everthing is on freq and relatively stable. I've always been surprised that it is such a sudden shift and not a gradual shift as the osc. warms up.

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