Date   
Re: Clock kit: new firmware version 1.03

K9WIS
 

I see from the specs that the clock can work with a 2 line or 4 line display...
If I have only a 2 line display can I scroll and display line 2 and 3 or line 3 and 4 or line 4 and 1?
Just curious..when my kit comes I'll beable to answer these types of question myself

Brian K9wis

Re: [MIQRPCLUB] QCX/QSX Elmering and Discussion

Ed Kwik
 

Sorry I did not get home in time for the meeting.  I thought I could get home in plenty of time but my internal clock is off.  I ran a marathon on Saturday and I am still in recovery mode.
Ed
AB8DF


On Sep 8, 2019, at 5:22 PM, Ed ekwik@... [MIQRPCLUB] <MIQRPCLUB@...> wrote:

 

Hi Everyone!
AB8DF is inviting you to a scheduled Zoom meeting.

Please join us Monday Sep 9, 2019 7:00 PM / 23:00 UTC for our next QRP Labs QCX/QSX transceiver Chat where the main topics will be the QRP Labs QCX single band CW transceiver and the soon to be released QSX multiband
CW/SSB transceiver. It's fun, it's easy, and it's free. You only need a computer, a smart phone, or a tablet that can connect to the Internet. OR if you can't be close to any of those you can join by audio with any standard phone. Just follow the directions below.

No software needs be loaded or installed.

MIQRP CLUB is inviting you to a scheduled Zoom meeting.

Topic: MIQRP QCX/QSX discussion
Time: Sep9, 2019 7:00 PM Eastern Time (US and Canada)

Join Zoom Meeting
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* If you would like to volunteer to be a guest host, please contact Ed
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Thanks
Ed
AB8DF

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Reply via web post Reply to sender Reply to group Start a New Topic Messages in this topic (22)

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Re: QCX(-like) for 2m #alignment #vfo

Trevor VK3PD
 


Perhaps for a two meter converter you could try these. Aliexpress have broad band amplifier modules and balanced mixers for not a lot. Do not know what they are like but for their very low cost it would be worth trying
You would just have to add a two meter band pass filter to the above, then along with a  QCX17 and you are good to go.  Aliexpress also have SMA jumper cables for a $ or two.
You would need an amplifier and PA for the progrock for your transmitter.

Re: Clock kit: new firmware version 1.03

K9WIS
 


Dean,
I ran your data through a sidereal time calculator and came up with:

The longitude is set to -0.334deg, [W 0deg -20' -2"]

Enter the UTC time and date as MMDDYY HHMM. (UTC = EST+5, EDT+4):
090919 1653

Julian Date: JD2458736.203472222

Greenwhich Mean Sidereal Time: 16:6:48

Local Sidereal Time 16:5:28 

Brian K9WIS

-----------------------------------------

From: "Dean Smith"
To: QRPLabs@groups.io
Cc:
Sent: Monday September 9 2019 1:01:03PM
Subject: Re: [QRPLabs] Clock kit: new firmware version 1.03

Hi, just uploaded 1.03a version clock software, on a 4 line clock.

Line 1 I'm displaying UTC which seems fine.  16:53
Line 2 I'm displaying local time. Here at this time of year is +1 hour. Local offset is +060!  17:53
Ok all fine to this point.
Line 3 I'm displaying local sidereal time 16:06 ?? I'm west of GMT! Time should be minus a little -0.2 west of Greenwich.
Line 4 I'm displaying GMT sidereal time 16:08?? Now very confused.....
#UH and #TH don't appear to help if you use local offset function??
Anybody wanna have a stab at this one hi!

Re: QCX - Damaged Finals? (with IR photo)

joe@...
 

Thanks - I got that.  I built the kit correctly, and it was working for quite a while.  I ran it for most of a day, I turned it off, waited until the next day, then when I went to transmit again, I got the symptoms I described.  Everything works until it doesn't.  So - Q1, Q2, Q3, and Q6 show no obvious damage, and the low resistance I was reading between pins one and two on Q6 in-circuit was due to a resistor that is between them, so this is normal.  I pulled Q6 off the board, it is not shorted.  So I'll just replace Q1-Q6, then see what happens.  I'll certainly take your advice to continue troubleshooting after replacing the parts at much reduced power...

Re: Clock kit: new firmware version 1.03

Curt M.
 

so if you want to use it, you would need to do some display reprogramming anyway. 

You are correct.  One will stay the same but I still want to update it and then other will need reprogrammed anyway.  Point well taken.

Curt

Re: Clock kit: new firmware version 1.03

Hans Summers
 

Hi Curt

Yes, 1.03a has the Saturdayday fix.

There have as yet been no reports of any issue with 1.03a. 

Settings stay as long as you program it correctly... make sure not to specify an EEPROM file when programming. Then so long as the "Preserve EEPROM contents through chip erase cycle" fuse bit is set (which it should be) the EEPROM contents will be preserved and your settings retained. 

But if you do not want to reprogram the display, why would you need to upgrade firmware? The weekday tag is new... so if you want to use it, you would need to do some display reprogramming anyway. 

73 Hans G0UPL

On Mon, Sep 9, 2019 at 11:08 PM Curt M. <WU3URADIO@...> wrote:
Has the 1.03a firmware been updated to fix the Saturdayday fix?  I have a couple of these  and do not want to go through disconnecting them and opening them up to find out that I may have to do it again later.

Also, it's been a while since I upgraded firmware.  Will my settings stay in there or do I have to reprogram the display all over again?

Re: Clock kit: new firmware version 1.03

Curt M.
 

Has the 1.03a firmware been updated to fix the Saturdayday fix?  I have a couple of these  and do not want to go through disconnecting them and opening them up to find out that I may have to do it again later.

Also, it's been a while since I upgraded firmware.  Will my settings stay in there or do I have to reprogram the display all over again?

Re: Clock kit: new firmware version 1.03

Dean Smith
 

Ok, I think it is starting to click now,. Made the incorrect assumption that  sidereal and local were linked.
I have nearly an hour of difference. With your parameters that would be about right here, with the results I have.

Re: Clock kit: new firmware version 1.03

K9WIS
 

FYI.
1 Degree in Long = 4 minutes of time...I live at 90 Degree West of  0 degrees Long (Greenwich Meridian). 
So if it is Midnight (24:00) GMT.
 My local time is 24:00-(90 *4 minutes)  
                        or 24:00 - 360 minutes
                        or 24:00 - 6 hours
                        or 18:00 Local Time.
if the Sidereal time at 0 degrees is lets say 8:00
My local Sidereal time is 8:00-6 hours or 2:00.

* Local Time is not Standard Time or Daylight savings time that is defined as a large area (typically 15 degrees or 1 hour) between meridians...Local time is the time right where you are using your clock. Local time could on end of a timezone could be as much as an hour different from the other other side of the time zone, even though the clock on the wall, Standard time says the same time.

But I am sure you all know that already...

73, Brian K9WIS

-----------------------------------------

From: "Hans Summers"
To: QRPLabs@groups.io
Cc:
Sent: Monday September 9 2019 1:47:50PM
Subject: Re: [QRPLabs] Clock kit: new firmware version 1.03

Hi Dean

Ok so you're very slightly West of the Greenwich meridian. And you said your LST is 2 minutes behind your GST (you reported LST 16:06 when GST is 16:08). So this is what it should be doing isn't it?

73 Hans G0UPL 

On Mon, Sep 9, 2019, 20:33 Dean Smith <bardezbiker@...> wrote:
Ok 000°20'4"58232 west if I have that right here in the outbacks of at albans

Re: Persistence seems lacking...

Graham, VE3GTC
 

making one own tubes is not easy but others have done so. A search of youtube will provides a few results - there was one French gentleman who had a farily long video describing his process and another that might have been multi part.

And transistors and IC's - that has been done too.

https://hackaday.com/2018/04/24/first-lithographically-produced-home-made-ic-announced/

https://hackaday.com/2010/05/13/transistor-fabrication-so-simple-a-child-can-do-it/

https://hackaday.com/2010/03/10/jeri-makes-integrated-circuits/

among a few (very few) others.  Indeed not so easy and perhaps not even very practical other than the "Look what I did" wow factor.

cheers, Graham ve3gtc

Re: Persistence seems lacking...

ajparent1/KB1GMX
 

OK then a 5 tube superhet RX using 1AD4s and nearly pocket sizes is not QRP?  ;)

Tubes got very small and it was/is possible to make small radios using them 
that are not power hungry.  That 5tube was 250ma for the filaments and 45V
(5 9V batteries) at maybe 8ma.  Not terrible considering it was a tubes that were
at hand.  

A matching CW rig for 2W on 80m will be more demanding at 150ma for the filaments
and 135V (15 9V batteries) at some 20 ma.  For a 1U4 and 3A4 that's not bad.
Its possible to do better power wise but since all are in the off position on RX and
powered for TX thats not bad.

I do a lot with tubes as I have a boat lad laying around and they can be fun.
Doent' mean that the latest IC is not int he collection or a microporcessor 
or three as well.  I've mixed them for example a 4 tube am TX for 160 
and a Arduino/AD9850 for a crystal replacement.  10W of AM and DDS
stability.  

The idea that tube and transistors are distinct and separate was never
embraced by industry as it was a way to get to lower power when
transistors could not do higher power or higher frequency.

Allison

Re: Persistence seems lacking...

Bob Macklin <macklinbob@...>
 

To me QRP means SMALL.

The receivers for small low power operation are generally very simple,
primitive receivers like regens, direct conversion, and possibly crystal
detectors.

Not mutt band, multi mode, RICEBOXES!

I've got the ARRL QRP book. and it is full of simple primitive stuff.

Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"

----- Original Message -----
From: "Bill Cromwell" <wrcromwell@...>
To: <QRPLabs@groups.io>
Sent: Monday, September 09, 2019 11:02 AM
Subject: Re: [QRPLabs] Persistence seems lacking...


Hi,

When we are telling what something is and explaining how it works it can
be useful to compare it to what is is NOT. So vacuum tubes can be useful
in that regard even when we are talking about solid state and QRP (not
necessarily the same thing). That requires the audience to know how tubes
work. Some tube transmitters are QRP 5 watts or less of RF output. "QRP
receiver" is about the same as division by zero. Receivers don't really
have RF output beyond local 'leakage'. A tube receiver the size of a
refrigerator is still just a receiver with no RF output.

Some of us still use vacuum tubes beyond nostalgia because they still do
what they have always done (good, bad, and indifferent) AND we already
have them. If I was starting out today I would probably not gives tubes a
second glance. The heater power alone for two or three tubes exceeds the
input DC power to the RF circuits.

73,

Bill KU8H


On 9/9/19 1:38 PM, Shirley Dulcey KE1L wrote:
Distortion, in particular the kind of distortion that tubes produce, is
part of what we think of as the characteristic sound of an electric
guitar. Guitar amplifiers are not designed for minimum distortion, and
they are often pushed to and beyond their limits to get that tube
distortion to happen. A common way of handling guitars for a large venue
is to use a small tube amplifier, put a microphone in front of it to
capture the result, and then put that through a clean stack of solid
state amplifiers to fill the space.

In addition to distortion from the amplifier, guitar players use a
variety of effects boxes to distort their sound in other ways. Those
effects happen before the amplifier, so whatever the amp does to the
signal is stacked on top of the distortion from the boxes.

Tubes are still a cost-effective way to get a kilowatt or more of RF
output, especially if you buy one of the many used linear amplifiers that
are available. (I know - off-topic for QRP!) Other than that, their
primary appeal in ham radio is nostalgia. They have the appeal of being
technology that you can almost understand and imagine making at home. It
would take a fair amount of specialized gear but you COULD make your own
rudimentary vacuum tubes. Making your own transistors would be far more
challenging, and making sophisticated integrated circuits is far beyond
what any individual could do.

On Mon, Sep 9, 2019 at 9:19 AM Braden Glett <@kd8zm
<mailto:@kd8zm>> wrote:

"PS is anything still driven by valves?"

Yes - plumbing. Other than that, you should probably have the hobby
of working on guitar amplifiers rather than radio! :) Amps still use
tubes for that nice, warm sound, real or imagined.

--
bark less - wag more


Re: Persistence seems lacking...

Bill Cromwell
 

Hi,

When we are telling what something is and explaining how it works it can be useful to compare it to what is is NOT. So vacuum tubes can be useful in that regard even when we are talking about solid state and QRP (not necessarily the same thing). That requires the audience to know how tubes work. Some tube transmitters are QRP 5 watts or less of RF output. "QRP receiver" is about the same as division by zero. Receivers don't really have RF output beyond local 'leakage'. A tube receiver the size of a refrigerator is still just a receiver with no RF output.

Some of us still use vacuum tubes beyond nostalgia because they still do what they have always done (good, bad, and indifferent) AND we already have them. If I was starting out today I would probably not gives tubes a second glance. The heater power alone for two or three tubes exceeds the input DC power to the RF circuits.

73,

Bill KU8H

On 9/9/19 1:38 PM, Shirley Dulcey KE1L wrote:
Distortion, in particular the kind of distortion that tubes produce, is part of what we think of as the characteristic sound of an electric guitar. Guitar amplifiers are not designed for minimum distortion, and they are often pushed to and beyond their limits to get that tube distortion to happen. A common way of handling guitars for a large venue is to use a small tube amplifier, put a microphone in front of it to capture the result, and then put that through a clean stack of solid state amplifiers to fill the space.
In addition to distortion from the amplifier, guitar players use a variety of effects boxes to distort their sound in other ways. Those effects happen before the amplifier, so whatever the amp does to the signal is stacked on top of the distortion from the boxes.
Tubes are still a cost-effective way to get a kilowatt or more of RF output, especially if you buy one of the many used linear amplifiers that are available. (I know - off-topic for QRP!) Other than that, their primary appeal in ham radio is nostalgia. They have the appeal of being technology that you can almost understand and imagine making at home. It would take a fair amount of specialized gear but you COULD make your own rudimentary vacuum tubes. Making your own transistors would be far more challenging, and making sophisticated integrated circuits is far beyond what any individual could do.
On Mon, Sep 9, 2019 at 9:19 AM Braden Glett <@kd8zm <mailto:@kd8zm>> wrote:
"PS is anything still driven by valves?"
Yes - plumbing. Other than that, you should probably have the hobby
of working on guitar amplifiers rather than radio! :) Amps still use
tubes for that nice, warm sound, real or imagined.
--
bark less - wag more

Re: Clock kit: new firmware version 1.03

Hans Summers
 

Hi Dean

Ok so you're very slightly West of the Greenwich meridian. And you said your LST is 2 minutes behind your GST (you reported LST 16:06 when GST is 16:08). So this is what it should be doing isn't it?

73 Hans G0UPL 

On Mon, Sep 9, 2019, 20:33 Dean Smith <bardezbiker@...> wrote:
Ok 000°20'4"58232 west if I have that right here in the outbacks of at albans

Re: Persistence seems lacking...

Shirley Dulcey KE1L
 

Distortion, in particular the kind of distortion that tubes produce, is part of what we think of as the characteristic sound of an electric guitar. Guitar amplifiers are not designed for minimum distortion, and they are often pushed to and beyond their limits to get that tube distortion to happen. A common way of handling guitars for a large venue is to use a small tube amplifier, put a microphone in front of it to capture the result, and then put that through a clean stack of solid state amplifiers to fill the space.

In addition to distortion from the amplifier, guitar players use a variety of effects boxes to distort their sound in other ways. Those effects happen before the amplifier, so whatever the amp does to the signal is stacked on top of the distortion from the boxes.

Tubes are still a cost-effective way to get a kilowatt or more of RF output, especially if you buy one of the many used linear amplifiers that are available. (I know - off-topic for QRP!) Other than that, their primary appeal in ham radio is nostalgia. They have the appeal of being technology that you can almost understand and imagine making at home. It would take a fair amount of specialized gear but you COULD make your own rudimentary vacuum tubes. Making your own transistors would be far more challenging, and making sophisticated integrated circuits is far beyond what any individual could do.

On Mon, Sep 9, 2019 at 9:19 AM Braden Glett <bradenglett@...> wrote:
"PS is anything still driven by valves?"

Yes - plumbing. Other than that, you should probably have the hobby of working on guitar amplifiers rather than radio! :) Amps still use tubes for that nice, warm sound, real or imagined.

Re: Clock kit: new firmware version 1.03

Dean Smith
 

Ok 000°20'4"58232 west if I have that right here in the outbacks of at albans

Re: Clock kit: new firmware version 1.03

Hans Summers
 

Hi Dean

What is your actual longitude reported by the clock? Including the sign (E/W)?

The #UH/M/S tags should display Greenwich Sidereal Time (GST).

The #TH/M/S tags should display Local Sidereal Time (LST).

Local Sidereal Time has nothing at all to do with the local time offset setting which only applies to UT not Sidereal time. Whereas UT and local time offsets are human specified, the relation ship between GST and LST is specified only by the locality's longitude. 

LST is GST - longitude / 15.0. For example in my case I'm 28.something degrees East and so my LST is nearly 2 hours ahead of GST. 

73 Hans G0UPL 




On Mon, Sep 9, 2019, 20:01 Dean Smith <bardezbiker@...> wrote:
Hi, just uploaded 1.03a version clock software, on a 4 line clock.

Line 1 I'm displaying UTC which seems fine.  16:53
Line 2 I'm displaying local time. Here at this time of year is +1 hour. Local offset is +060!  17:53
Ok all fine to this point.
Line 3 I'm displaying local sidereal time 16:06 ?? I'm west of GMT! Time should be minus a little -0.2 west of Greenwich.
Line 4 I'm displaying GMT sidereal time 16:08?? Now very confused.....
#UH and #TH don't appear to help if you use local offset function??
Anybody wanna have a stab at this one hi!

Re: #clock PROBLEM Clock C.1.03 firmware #firmware #clock

Rick Williams - VE7TK
 

Thanks for the quick fix Hans.

I agree with Art's comments. Item #2 problem is cured.
--
73, Rick
VE7TK

Re: Clock kit: new firmware version 1.03

Dean Smith
 

Hi, just uploaded 1.03a version clock software, on a 4 line clock.

Line 1 I'm displaying UTC which seems fine.  16:53
Line 2 I'm displaying local time. Here at this time of year is +1 hour. Local offset is +060!  17:53
Ok all fine to this point.
Line 3 I'm displaying local sidereal time 16:06 ?? I'm west of GMT! Time should be minus a little -0.2 west of Greenwich.
Line 4 I'm displaying GMT sidereal time 16:08?? Now very confused.....
#UH and #TH don't appear to help if you use local offset function??
Anybody wanna have a stab at this one hi!