Since 3830 is not yet up: 4 QSOs here as well on 40m, one with QCX (G4GIR), if I copied correctly. Very strong QSB for all QSOs, from R2 to R5 up and down. Anyway, was fun ¨C have to unmount my antenna now.
73, Jens DG2FDD
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Re: Balloon breaking previous records U3B-25
Dave et al :
I have a separate browser window that I keep open with both WSPRNET and APRS.fi tabs so I?
can quickly check to see what U3B-25 is up to on a daily basis. As Jack, W8TEE said, it has been a?
lot of fun to keep tabs on it.?
It was very interesting to track both U3B-25 and the SA6BSS BSS-18 balloons as they were neck and neck?
from about Feb 29th until March 14th, when BSS-18 went silent somewhere off the coast of Ireland.?
We will be looking at the spots from both Balloons for that period to see how well beaconing on 20m only compared to?
Dave's strategy of 30m/20m.? We are trying to come up with a Beaconing strategy for our Aries-1 Balloon and this
occurence presents a unique opportunity to pretty much rule out propagation as a variable because the two balloons were
geographically so close for?one global circumnavigation.?
Congratulations again Dave, your work has been inspirational to all of us.?
Cheers
Michael VE3WMB?
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I did not think I'd be heard using QRP at 1300-1400, so called CQ QCX several times with 100 watts, got a lot of ?strong RBN spots from west coast USA, and a few non-QCX contacts. Wonder if anyone heard me and tried to reply. I thought i heard one extremely faint call but it could have been ringing. ?JS6TMW?
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Well I tried very hard in the 1300z slot on 20m and saw quite a few stations spotted, but not many heard here.
Only 1 QSO with DL6UNF. Maybe 20m is not the best QRP band with current condx.
Running QCX and vertical. Hope others did better.
73, Neil G4BRK
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Appears 3830scores is not up yet for QCX.?
4 contacts one of which was QCX.
N3MNT
Bob
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Re: IQ balance trimmer potentiometer issue
#alignment
Wow thanks for all of the help Hans. I'll work on it today.
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Re: IQ balance trimmer potentiometer issue
#alignment
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Re: Balloon breaking previous records U3B-25
This has been fun to watch unfold!
Jack, W8TEE
On Monday, March 25, 2019, 8:49:08 AM EDT, VE3KCL <airdry@...> wrote:
A U3B balloon has never managed to fly around the world twice before, and now -25 is on it's 3rd lap, over Egypt at the moment.
The greatest distance that has ever been logged on one of these flights is now at 82000km... quite good mileage for? 90 cents worth of hydrogen.
It is quite possible that this flight longevity may be related to timing ... this time of the year has high winds and less high clouds, which ice up balloons.
... or more likely some very good luck.
73 Dave?
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Balloon breaking previous records U3B-25
A U3B balloon has never managed to fly around the world twice before, and now -25 is on it's 3rd lap, over Egypt at the moment.
The greatest distance that has ever been logged on one of these flights is now at 82000km... quite good mileage for? 90 cents worth of hydrogen.
It is quite possible that this flight longevity may be related to timing ... this time of the year has high winds and less high clouds, which ice up balloons.
... or more likely some very good luck.
73 Dave?
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Re: IQ balance trimmer potentiometer issue
#alignment
Hi, Elliot
I would make absolutely sure that the 6 ends of the 3 little
windings on T1 are all properly soldered. You should read zero
ohms between pins 7 and 9 on IC4, the FST3253. In order for there
to be a difference in phase between the 2 filter channels there
needs to be 2 phases of RF and 2 phases of local oscillator going
into the demodulator.
73
Jim W4JED
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when I do go to 12 with the gain control (volume) the IQ pot still
does very little to nothing to the amplitude. it might move it one
bar. The phase lo and phase hi do nothing as well when trying to
adjust the amplitude.
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Re: IQ balance trimmer potentiometer issue
#alignment
Hi Elliot
The 24-turn pot is where you see the symptom. But it is not necessarily the cause. Actually it is not even LIKELY to be the cause, which probably lies elsewhere.?
If you get no minimum when you adjust R24 it means either R24 is mis-soldered (or rarely, broken) - but much more likely, is that you have a fault somewhere else entirely: it means that you don't have the proper I and Q signals, therefore there is no cancellation. Anywhere in the receiver signal path up to R24, could be at fault. Possible faults could perhaps include: - Soldering problem at one of the secondaries of T1 (commonly, enamel is not removed completely so no electrical connection)
- Any kind of soldering problem around any of IC4, 5, 6 and 7 and their associated components (dry joints, solder bridges, etc)
- Wrong component values installed
- Faulty components (rare) around IC4, 5, 6 and 7 or associated components
This is very important! So I reiterate: Unless you have correctly phase-shifted signals of the correct phase and amplitude at the I & Q which feed the R24 potentiometer, you will NOT get cancellation of the unwanted sideband. Therefore you will see no minimum as you adjust R24.?
I recommend looking through the troubleshooting guide:?
Even if you do not have an oscilloscope, a DVM can be quite helpful in a large proportion of cases; you should see 2.5V DC bias on pins 1 and 7 of IC5, IC6 and IC7. If not... then you have a problem at that op-amp stage. Visual inspection for soldering faults or incorrect component values goes a long way. Or further DVM continuity checks and checks for shorts.?
73 Hans G0UPL
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Re: IQ balance trimmer potentiometer issue
#alignment
Hi?
You could remove the pot again and test it in isolation to make sure it's working (it will probably be ok).? Check very carefully for any solder bridges or cold joints that might be causing a problem on the board.??
Good luck
73
Peter, GM0EUL
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Hi Steve
From?
Frequencies: nominally around the QRP centres of activity (14.060, 7.030, 3.560 respectively) but please spread out and use spotting aids (see below) to see where people are. QSOs anywhere on the band can be counted. Don¡¯t cluster at the centre of activity! Use the VFO, someone will spot you and call you. If you are searching use the VFO and very slowly tune up and down listening for weak signals.
73 Hans G0UPL? ?
On Mon, Mar 25, 2019, 08:09 Steve in Okinawa < sfab43@...> wrote: Are there suggested frequencies??
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Are there suggested frequencies??
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Yes, my log says 0350 25 March 2019. ?So I got a nice contact in New Mexico and I still get to participate in all three QSO party events.? Life is good! ? 73 Tony N0BPA
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From: [email protected] [mailto:[email protected]] On Behalf Of Hans Summers
Sent: Sunday, March 24, 2019 11:49 PM
To: [email protected]
Subject: Re: [QRPLabs] QCX QSO Party 25th March 2019 #qcx #qrp-dx ? Hi Tony You wrote the QSO time was 0950... which is in the future, regardless... I guess a typo, you really meant 0350.? The QSO party times agreed, were: So that the last session, 0300-0400Z falls on Monday local time in US. Then all three slots fall on Monday in the most likely timezones they will be used. A bit confusing I know... I will clarify it on the page also.? ? On Mon, Mar 25, 2019 at 7:22 AM Tony McUmber <tmcumber@...> wrote: I have the times as 0300z, 1300z, and 1900z on March 25.? I am replying to this note on March 25 0322z (or March 24 2322 Central Daylight Time.? Which time standard are we using? ¡or is this just too early in the morning for me? ? 73, Tony N0BPA ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Hans Summers
Sent: Sunday, March 24, 2019 11:16 PM
To: [email protected]
Subject: Re: [QRPLabs] QCX QSO Party 25th March 2019 #qcx #qrp-dx ? Hi Tony Well, this did not quite match the stellar performance of the first QCX party, but I made one qso (non-QCX) about 0950Z 25/3/19 to New Mexico, 1771 miles.? Much QSB and static noise.? Great fun!
Something is a little wrong somewhere... current time is 25-Mar-2019 0412Z so you made a QSO in the future... also QSO hours are at 1300Z, 1900Z and 0300Z.? I was going to email anyway, as clarification: 0300Z means 26-Mar-2019 0300Z. So it is Monday evening in US (not Sunday evening). At least... I *think* this is what we decided last time. Someone please correct me if I'm wrong. ? 73, Tony N0BPA ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Peter GM0EUL
Sent: Sunday, March 24, 2019 6:07 PM
To: [email protected]
Subject: [QRPLabs] QCX QSO Party 25th March 2019 #qcx #qrp-dx ? Hi All
Quick reminder that its our second QCX QSO party tomorrow (25th March) three one hour sessions, 1300z, 1900z as last time and a 0300z sessions at the request of some US QCX enthusiasts.? Rules etc here:
But don't bother too much about the rules, its supposed to be a fun activity time to get on the air with (or without) a QCX and make some contacts.? I'll be on for at least some of the 1300 and 1900 sessions so hope to work some of you then.
We are now listed on the WA7BNM contest calendar and should be able to post our qso numbers on the 3830 scores site.
Catch you all tomorrow!
73, Peter GM0EUL
|
Hi Tony
You wrote the QSO time was 0950... which is in the future, regardless... I guess a typo, you really meant 0350.?
The QSO party times agreed, were:
25-Mar-2019 1300-1400Z 25-Mar-2019 1900-2000Z 26-Mar-2019 0300-0400Z
So that the last session, 0300-0400Z falls on Monday local time in US. Then all three slots fall on Monday in the most likely timezones they will be used.
A bit confusing I know... I will clarify it on the page also.?
73 Hans G0UPL
On Mon, Mar 25, 2019 at 7:22 AM Tony McUmber < tmcumber@...> wrote: I have the times as 0300z, 1300z, and 1900z on March 25.? I am replying to this note on March 25 0322z (or March 24 2322 Central Daylight Time.? Which time standard are we using? ¡or is this just too early in the morning for me? ? 73, Tony N0BPA ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Hans Summers
Sent: Sunday, March 24, 2019 11:16 PM
To: [email protected]
Subject: Re: [QRPLabs] QCX QSO Party 25th March 2019 #qcx #qrp-dx ? Hi Tony Well, this did not quite match the stellar performance of the first QCX party, but I made one qso (non-QCX) about 0950Z 25/3/19 to New Mexico, 1771 miles.? Much QSB and static noise.? Great fun!
Something is a little wrong somewhere... current time is 25-Mar-2019 0412Z so you made a QSO in the future... also QSO hours are at 1300Z, 1900Z and 0300Z.? I was going to email anyway, as clarification: 0300Z means 26-Mar-2019 0300Z. So it is Monday evening in US (not Sunday evening). At least... I *think* this is what we decided last time. Someone please correct me if I'm wrong. ? 73, Tony N0BPA ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Peter GM0EUL
Sent: Sunday, March 24, 2019 6:07 PM
To: [email protected]
Subject: [QRPLabs] QCX QSO Party 25th March 2019 #qcx #qrp-dx ? Hi All
Quick reminder that its our second QCX QSO party tomorrow (25th March) three one hour sessions, 1300z, 1900z as last time and a 0300z sessions at the request of some US QCX enthusiasts.? Rules etc here:
But don't bother too much about the rules, its supposed to be a fun activity time to get on the air with (or without) a QCX and make some contacts.? I'll be on for at least some of the 1300 and 1900 sessions so hope to work some of you then.
We are now listed on the WA7BNM contest calendar and should be able to post our qso numbers on the 3830 scores site.
Catch you all tomorrow!
73, Peter GM0EUL
|
Correction:? the time I sent this was March 25 0422z (or March 24 2322 CDT).? The switch to CDT does not affect Z time, but details are details ? 73, Tony N0BPA ? ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Tony McUmber
Sent: Sunday, March 24, 2019 11:25 PM
To: [email protected]
Subject: Re: [QRPLabs] QCX QSO Party 25th March 2019 #qcx #qrp-dx? I have the times as 0300z, 1300z, and 1900z on March 25.? I am replying to this note on March 25 0322z (or March 24 2322 Central Daylight Time.? Which time standard are we using? ¡or is this just too early in the morning for me? ? 73, Tony N0BPA ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Hans Summers
Sent: Sunday, March 24, 2019 11:16 PM
To: [email protected]
Subject: Re: [QRPLabs] QCX QSO Party 25th March 2019 #qcx #qrp-dx ? Hi Tony Well, this did not quite match the stellar performance of the first QCX party, but I made one qso (non-QCX) about 0950Z 25/3/19 to New Mexico, 1771 miles.? Much QSB and static noise.? Great fun!
Something is a little wrong somewhere... current time is 25-Mar-2019 0412Z so you made a QSO in the future... also QSO hours are at 1300Z, 1900Z and 0300Z.? I was going to email anyway, as clarification: 0300Z means 26-Mar-2019 0300Z. So it is Monday evening in US (not Sunday evening). At least... I *think* this is what we decided last time. Someone please correct me if I'm wrong. ? 73, Tony N0BPA ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Peter GM0EUL
Sent: Sunday, March 24, 2019 6:07 PM
To: [email protected]
Subject: [QRPLabs] QCX QSO Party 25th March 2019 #qcx #qrp-dx ? Hi All
Quick reminder that its our second QCX QSO party tomorrow (25th March) three one hour sessions, 1300z, 1900z as last time and a 0300z sessions at the request of some US QCX enthusiasts.? Rules etc here:
But don't bother too much about the rules, its supposed to be a fun activity time to get on the air with (or without) a QCX and make some contacts.? I'll be on for at least some of the 1300 and 1900 sessions so hope to work some of you then.
We are now listed on the WA7BNM contest calendar and should be able to post our qso numbers on the 3830 scores site.
Catch you all tomorrow!
73, Peter GM0EUL
|
´¡»å»å±ð²Ô»å³Ü³¾¡ Oh boy, I get another try! ? 73, Tony N0BPA ? ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Hans Summers
Sent: Sunday, March 24, 2019 11:16 PM
To: [email protected]
Subject: Re: [QRPLabs] QCX QSO Party 25th March 2019 #qcx #qrp-dx ? Hi Tony Well, this did not quite match the stellar performance of the first QCX party, but I made one qso (non-QCX) about 0950Z 25/3/19 to New Mexico, 1771 miles.? Much QSB and static noise.? Great fun!
Something is a little wrong somewhere... current time is 25-Mar-2019 0412Z so you made a QSO in the future... also QSO hours are at 1300Z, 1900Z and 0300Z.? I was going to email anyway, as clarification: 0300Z means 26-Mar-2019 0300Z. So it is Monday evening in US (not Sunday evening). At least... I *think* this is what we decided last time. Someone please correct me if I'm wrong. ? 73, Tony N0BPA ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Peter GM0EUL
Sent: Sunday, March 24, 2019 6:07 PM
To: [email protected]
Subject: [QRPLabs] QCX QSO Party 25th March 2019 #qcx #qrp-dx ? Hi All
Quick reminder that its our second QCX QSO party tomorrow (25th March) three one hour sessions, 1300z, 1900z as last time and a 0300z sessions at the request of some US QCX enthusiasts.? Rules etc here:
But don't bother too much about the rules, its supposed to be a fun activity time to get on the air with (or without) a QCX and make some contacts.? I'll be on for at least some of the 1300 and 1900 sessions so hope to work some of you then.
We are now listed on the WA7BNM contest calendar and should be able to post our qso numbers on the 3830 scores site.
Catch you all tomorrow!
73, Peter GM0EUL
|
I have the times as 0300z, 1300z, and 1900z on March 25.? I am replying to this note on March 25 0322z (or March 24 2322 Central Daylight Time.? Which time standard are we using? ¡or is this just too early in the morning for me? ? 73, Tony N0BPA ? ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Hans Summers
Sent: Sunday, March 24, 2019 11:16 PM
To: [email protected]
Subject: Re: [QRPLabs] QCX QSO Party 25th March 2019 #qcx #qrp-dx ? Hi Tony Well, this did not quite match the stellar performance of the first QCX party, but I made one qso (non-QCX) about 0950Z 25/3/19 to New Mexico, 1771 miles.? Much QSB and static noise.? Great fun!
Something is a little wrong somewhere... current time is 25-Mar-2019 0412Z so you made a QSO in the future... also QSO hours are at 1300Z, 1900Z and 0300Z.? I was going to email anyway, as clarification: 0300Z means 26-Mar-2019 0300Z. So it is Monday evening in US (not Sunday evening). At least... I *think* this is what we decided last time. Someone please correct me if I'm wrong. ? 73, Tony N0BPA ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Peter GM0EUL
Sent: Sunday, March 24, 2019 6:07 PM
To: [email protected]
Subject: [QRPLabs] QCX QSO Party 25th March 2019 #qcx #qrp-dx ? Hi All
Quick reminder that its our second QCX QSO party tomorrow (25th March) three one hour sessions, 1300z, 1900z as last time and a 0300z sessions at the request of some US QCX enthusiasts.? Rules etc here:
But don't bother too much about the rules, its supposed to be a fun activity time to get on the air with (or without) a QCX and make some contacts.? I'll be on for at least some of the 1300 and 1900 sessions so hope to work some of you then.
We are now listed on the WA7BNM contest calendar and should be able to post our qso numbers on the 3830 scores site.
Catch you all tomorrow!
73, Peter GM0EUL
|
Hi Tony Well, this did not quite match the stellar performance of the first QCX party, but I made one qso (non-QCX) about 0950Z 25/3/19 to New Mexico, 1771 miles.? Much QSB and static noise.? Great fun!
Something is a little wrong somewhere... current time is 25-Mar-2019 0412Z so you made a QSO in the future... also QSO hours are at 1300Z, 1900Z and 0300Z.?
I was going to email anyway, as clarification: 0300Z means 26-Mar-2019 0300Z. So it is Monday evening in US (not Sunday evening). At least... I *think* this is what we decided last time. Someone please correct me if I'm wrong.
73 Hans G0UPL? ?
? 73, Tony N0BPA ? ? From: [email protected] [mailto:[email protected]] On Behalf Of Peter GM0EUL
Sent: Sunday, March 24, 2019 6:07 PM
To: [email protected]
Subject: [QRPLabs] QCX QSO Party 25th March 2019 #qcx #qrp-dx ? Hi All
Quick reminder that its our second QCX QSO party tomorrow (25th March) three one hour sessions, 1300z, 1900z as last time and a 0300z sessions at the request of some US QCX enthusiasts.? Rules etc here:
But don't bother too much about the rules, its supposed to be a fun activity time to get on the air with (or without) a QCX and make some contacts.? I'll be on for at least some of the 1300 and 1900 sessions so hope to work some of you then.
We are now listed on the WA7BNM contest calendar and should be able to post our qso numbers on the 3830 scores site.
Catch you all tomorrow!
73, Peter GM0EUL
|
N3MNT
jjpurdum
VE3KCL
James Daldry W4JED
Peter GM0EUL