Date   

Re: Frequency adjustment on a simple cw transmitter

Chuck Carpenter
 

Jim,

The lower frequency is typical of the Rock-mights too.

In most circuits with parallel resonant crystals, a series capacitor/trimmer will raise the frequency. An inductor in series will lower the frequency.

Series resonant crystals such as the 7114s from ESS will be higher than the marked frequecy.

A combination of trimmer and inductor in series can be arranged to both raise and lower the frqeuency.

There are examples of such circuits in the W1FB's QRP Notebooks and in EMRFD.


Chuck Carpenter, W5USJ
EM22cv, Rains Co. TX


Christmas Eve PSK net.

Dick Hammond
 

I will be away on christmas eve with family  so I would like to 
eliminate our PSK net for this week.
Tnx  for your understanding and Merry Christmas. 
Dick, N0TGR


Re: This weeks 3564 and 7122 nets

Robert
 

Merry Christmas Terry 

Drive safe

Bert




On Dec 23, 2013, at 11:43 AM, "WA0ITP" <wa0itp@...> wrote:

 

I'll likely be out of the shack on Wednesday evening so I'm not planning on the
80M net. If I do get home early enough to get on the air, I'll post a note on
the reflector and we can have a go at it. Wayne and Dick may, or may not, go
ahead with their nets. Look for announcements from them. I do plan to call
the Thursday morning net on 7122. Many thanks to all who are making it a big
success.

Merry Christmas everyone.
----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72 WA0ITP
www.wa0itp.com
www.4sqrp.com


Re: Antennas and Ice!

Wayne Dillon
 

Well it's forced me to do something I likely should have done months ago, replace the timber mast with a sectional metal one I have ready to go. just wait a few more days for the wx to improve and I'll "get er done".
Merry Christmas all along with a peaceful and prosperous new year.
God Bless de Wayne - KC0PMH


On Mon, Dec 23, 2013 at 11:37 AM, WA0ITP <wa0itp@...> wrote:
 

ARGHH!!  Sri to hear that Wayne, hope you can repair it fairly easily, and soon. It does a nice job for you.  I'll probably be out of the shack on Wednesday evening so I'm not planning on the 80M net.  If I do get home for it, I'll post a note on the reflector and see if I can scare up some folks who are free of family obligations on Christmas Day evening. 
 
----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72   WA0ITP
www.wa0itp.com
www.4sqrp.com
 
 
 
----- Original Message -----
Sent: Monday, December 23, 2013 10:38 AM
Subject: [4sqrp] Antennas and Ice!

Good morning all,
Well if the old adage about your antenna not being big enough if it survives the winter is true then mine was big enough! Night before last ice brought mine down, snapped the timber mast at the join (always a weak point) so later today, if i can get into my workshop i'll dig out the 0.5 size G5RV and get it up in the attic space, gotta have something to join in on Thursday morning net. As it's Christmas Day Wednesday do y'all still want to do a 40m net or two ?
72/3 es God Bless all de Wayne - KC0PMH 

--
http://www.qsl.net/kc0pmh/   Under construction but please visit anyway.
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - KC0PMH

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 

4 State QRP Group NCS - 40m & 160m
4SQRP #95
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-C #11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155C
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686




--
http://www.qsl.net/kc0pmh/   Under construction but please visit anyway.
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - KC0PMH

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 

4 State QRP Group NCS - 40m & 160m
4SQRP #95
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-C #11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155C
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686


This weeks 3564 and 7122 nets

WA0ITP
 

I'll likely be out of the shack on Wednesday evening so I'm not planning on the
80M net. If I do get home early enough to get on the air, I'll post a note on
the reflector and we can have a go at it. Wayne and Dick may, or may not, go
ahead with their nets. Look for announcements from them. I do plan to call
the Thursday morning net on 7122. Many thanks to all who are making it a big
success.

Merry Christmas everyone.
----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72 WA0ITP
www.wa0itp.com
www.4sqrp.com


Frequency adjustment on a simple cw transmitter

James Compton
 

I have recently built several QRP cw transmitters, all based on Lew Smith's Simple 17  meter QRP Transmitter design, but in different bands.  Without exception, the transmitting frequency of all of them has been between 1 - 2 kHz below the crystal frequency.  Adding a capacitor to the circuit, either in series or parallel with the crystal will supposedly change the frequency, as will a trimmer/variable capacitor (as in Simple Simon VXO) but I don't know if it be changed either up or down. 

My latest build for 15 meters uses a 21.060 crystal and the output frequency of the transmitter is 21.048.  I can and will experiment with capacitors, but it would help knowing where to start.

 My question: does anyone know where in the circuit to add capacitance to raise the final frequency? .....or lower it for that matter. Or is there an alternative method, such as changing the two filter coils?  Adding a capacitor would be simpler, if that would work.  


Jim, K4JDC


Re: Antennas and Ice!

WA0ITP
 

ARGHH!!  Sri to hear that Wayne, hope you can repair it fairly easily, and soon. It does a nice job for you.  I'll probably be out of the shack on Wednesday evening so I'm not planning on the 80M net.  If I do get home for it, I'll post a note on the reflector and see if I can scare up some folks who are free of family obligations on Christmas Day evening. 
 
----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72   WA0ITP
www.wa0itp.com
www.4sqrp.com
 
 
 

----- Original Message -----
Sent: Monday, December 23, 2013 10:38 AM
Subject: [4sqrp] Antennas and Ice!

Good morning all,
Well if the old adage about your antenna not being big enough if it survives the winter is true then mine was big enough! Night before last ice brought mine down, snapped the timber mast at the join (always a weak point) so later today, if i can get into my workshop i'll dig out the 0.5 size G5RV and get it up in the attic space, gotta have something to join in on Thursday morning net. As it's Christmas Day Wednesday do y'all still want to do a 40m net or two ?
72/3 es God Bless all de Wayne - KC0PMH 

--
http://www.qsl.net/kc0pmh/   Under construction but please visit anyway.
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - KC0PMH

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 

4 State QRP Group NCS - 40m & 160m
4SQRP #95
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-C #11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155C
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686


Antennas and Ice!

Wayne Dillon
 

Good morning all,
Well if the old adage about your antenna not being big enough if it survives the winter is true then mine was big enough! Night before last ice brought mine down, snapped the timber mast at the join (always a weak point) so later today, if i can get into my workshop i'll dig out the 0.5 size G5RV and get it up in the attic space, gotta have something to join in on Thursday morning net. As it's Christmas Day Wednesday do y'all still want to do a 40m net or two ?
72/3 es God Bless all de Wayne - KC0PMH 

--
http://www.qsl.net/kc0pmh/   Under construction but please visit anyway.
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - KC0PMH

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 

4 State QRP Group NCS - 40m & 160m
4SQRP #95
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-C #11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155C
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686


Re: RTTY in days of old

Wayne Dillon
 

If you happen to get sight of a copy of the late great Gilbert Davey's book "Fun With Shortwave Radio" the one with a picture of the London Science Museum's Ham Radio room - GB2SM, you'll see, built in to the left side, yes I said "built in" you'll see a Creed 7B. In the UK this was the machine much sought after by Ham operators wanting to play RTTY (an/or secure a "Quickie" divorce!!). I my time as a demonstrator of GB2SM it was, sadly, long gone.
God bless all es 72/3 de Wayne - KC0PMH
Here's wishing all a very Merry Christmas along with a peaceful, prosperous new year.


On Sat, Dec 21, 2013 at 2:48 PM, Jim Sheldon <w0eb@...> wrote:
 

For those of you that don't know what a TG-7B is, it's the old Teletype Corp. Model 15 KSR  (KSR stands for "keyboard send/receive") and it has a keyboard.  These were the mainstay of ham RTTY for many, many years.  Museum quality stuff - LOL!
 
Jim - W0EB

> I have an TG-7-B made for the Army Signal Corp. with documentation
> , manuals, dry ribbon, no paper rolls. 
> One of the manuals has some paper work from NAAS OCEANA dated 1943.
> I believe this machine came from the estate of John Orr of magnetic
> recording tape fame.
> I would like to see this machine go to a good home .... It's been
> in my basement for many years . I did have it connected to a Mister
> RTTYTerminal at one time just on receive . So if you have a semi
> tractor trailer and forklift it's yours..
> Tom WA4ZOF
>
 




--
http://www.qsl.net/kc0pmh/   Under construction but please visit anyway.
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - KC0PMH

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 

4 State QRP Group NCS - 40m & 160m
4SQRP #95
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-C #11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155C
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686


Re: RTTY in days of old

 

Hardly the romance associated with older TTY equipment, but the
Dataspeed 40 terminals and printers haunted my territory in Oklahoma for
18 months after I started with Union Pacific RR in 1991:

http://www.nadcomm.com/40dataspeed.htm

I didn't find a video of the printer, but those guys had an endless belt
with at least two sets of fonts. They ran rather quickly as I recall.
They were heavy enough that one could have easily chocked a train with
one in a pinch! The terminals were close to indestructable as well.

72, de Nate >>

--

"The optimist proclaims that we live in the best of all
possible worlds. The pessimist fears this is true."

Ham radio, Linux, bikes, and more: http://www.n0nb.us


Re: 40M stretched out

Jim Sheldon
 

20's really long too.  Just worked 9V1YC in Singapore - long path with the KX3 on 14.027. He was calling NA Long Path and working split - UP 2.  I managed to get him just before he went QRT.  Clean signal with very low background noise.  Funny because I think there's about an 8th inch of ice on my antenna as we've been having freezing drizzle to light freezing rain all day!  Hope it changes over to snow before too long or I might lose my wire antennas!
 
Jim - W0EB

> 40M is stretched out already. I just heard AB6X in Idaho on 7122
> with a 579 signal.
>
> ----------------------------------
> Back to the bench, Winter's too valuable to waste.
> I love this radio stuff !
> 72   WA0ITP
> www.wa0itp.com
> www.4sqrp.com
>
>
> ------------------------------------
>
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40M stretched out

WA0ITP
 

40M is stretched out already. I just heard AB6X in Idaho on 7122 with a 579
signal.

----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72 WA0ITP
www.wa0itp.com
www.4sqrp.com


Re: RTTY in days of old

Jim Sheldon
 

Auburn, Alabama is a long haul from Park City, Kansas Tom, besides my wife would kill me if I brung a Model 15 back into the house.  She remembers the days when I was doing preventative maintenance on a couple of them in the shack.  Standard procedure was, disconnect the loop supply, let the machine run "open" and pour 30 weight motor oil on the felt clutches.  Those buggers could sling 30 weight in ALL directions for varying distances usually exceeding 30 feet.  My shack walls had oil spots all over them - LOL!  Those days are NOT missed on the distaff side of the house - HAH.
 
Jim - W0EB

> I have an TG-7-B made for the Army Signal Corp. with documentation
> , manuals, dry ribbon, no paper rolls. 
> One of the manuals has some paper work from NAAS OCEANA dated 1943.
> I believe this machine came from the estate of John Orr of magnetic
> recording tape fame.
> I would like to see this machine go to a good home .... It's been
> in my basement for many years . I did have it connected to a Mister
> RTTYTerminal at one time just on receive . So if you have a semi
> tractor trailer and forklift it's yours..
> Tom WA4ZOF
>
> Sent from my iPhone
>
> On Dec 21, 2013, at 13:03, Johnny
>>
>>
>> Pretty Neat Terry
>> Pam heard me playing the video and wanted to know if it was a
>> sewing machine!! I said no,  it it runs just as smooth!  72 
>> Johnny AC0BQ
>>
>> "More smiles per Watt!"
>> Sent from my iPad
>>
>> On Dec 21, 2013, at 11:45 AM, "WA0ITP" wrote:
>>>
>>>
>>> Great sound from the past 
>>>
>>> ----------------------------------
>>> Back to the
>>> bench, Winter's too valuable to waste.
>>> I love this radio stuff
>>> !
>>> 72  WA0ITP
>>> www.wa0itp.com
>>> www.4sqrp.com
>
>
>


Re: RTTY in days of old

Jim Sheldon
 

For those of you that don't know what a TG-7B is, it's the old Teletype Corp. Model 15 KSR  (KSR stands for "keyboard send/receive") and it has a keyboard.  These were the mainstay of ham RTTY for many, many years.  Museum quality stuff - LOL!
 
Jim - W0EB

> I have an TG-7-B made for the Army Signal Corp. with documentation
> , manuals, dry ribbon, no paper rolls. 
> One of the manuals has some paper work from NAAS OCEANA dated 1943.
> I believe this machine came from the estate of John Orr of magnetic
> recording tape fame.
> I would like to see this machine go to a good home .... It's been
> in my basement for many years . I did have it connected to a Mister
> RTTYTerminal at one time just on receive . So if you have a semi
> tractor trailer and forklift it's yours..
> Tom WA4ZOF
>
 


Re: RTTY in days of old

Tom
 

I have an TG-7-B made for the Army Signal Corp. with documentation , manuals, dry ribbon, no paper rolls. 
One of the manuals has some paper work from NAAS OCEANA dated 1943. I believe this machine came from the estate of John Orr of magnetic recording tape fame.
I would like to see this machine go to a good home .... It's been in my basement for many years . I did have it connected to a Mister RTTYTerminal at one time just on receive . So if you have a semi tractor trailer and forklift it's yours..
Tom WA4ZOF

Sent from my iPhone

On Dec 21, 2013, at 13:03, Johnny <jomatlock@...> wrote:

 

Pretty Neat Terry
Pam heard me playing the video and wanted to know if it was a sewing machine!!
I said no,  it it runs just as smooth!
 72 
Johnny AC0BQ

"More smiles per Watt!"
Sent from my iPad

On Dec 21, 2013, at 11:45 AM, "WA0ITP" <wa0itp@...> wrote:

 

Great sound from the past   http://www.youtube.com/watch?v=gwIhZwmHe2w 
 
----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72   WA0ITP
www.wa0itp.com
www.4sqrp.com


Re: RTTY in days of old

Johnny AC0BQ
 

Pretty Neat Terry
Pam heard me playing the video and wanted to know if it was a sewing machine!!
I said no,  it it runs just as smooth!
 72 
Johnny AC0BQ

"More smiles per Watt!"
Sent from my iPad

On Dec 21, 2013, at 11:45 AM, "WA0ITP" <wa0itp@...> wrote:

 

Great sound from the past   http://www.youtube.com/watch?v=gwIhZwmHe2w 
 
----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72   WA0ITP
www.wa0itp.com
www.4sqrp.com


Re: RTTY in days of old

Jim Sheldon
 

Back in the late 70's when I was stationed in Augsburg, Germany, I owned a Model 28 ASR, almost like the one in the video, but mine was colored light grey.  Mine had the speed change transmission in it so I could operate 60, 75 or 100 wpm just by moving a lever inside the case.  I built a digital ID unit for it that coupled to the "Here- Is" key and would also respond to the RTTY Signal WRU (Who Are You) and output DE DA1GS (my call over there at the time).  Dieter, DJ8KI bought it off me when I left Germany in 1979 and I reprogrammed the ID unit with his call.  Didn't want to spend the extra money to have it shipped home.
 
Wife was glad I didn't ship it -- too noisy.  Had several Kleinschmidt units at various times after I got back, and finally with the advent of the old Radio Shack TRS-80 and Color Computers, I finally ditched the "rattle-bangers" and that helped keep peace in the family.  Now that she has her ticket, she said she kinda misses the old machines.
 
I just completed a deal with a fellow QRP'er on the east coast for a TONO EXL-5000E self contained unit that does RTTY, ASCII, AMTOR and CW.  It will run on AC or 13.8 DC and has a built in 5" video monitor.  This is the unit all the DXpeditions used to use because of it's ability to run off battery.  Original cost on these was around $900 but I picked this one up in working condition for under $100 shipped.  Now all I have to do is find the service manual on it so I can fix it if it ever breaks.  
 
It does have X-Y outputs for a tuning scope, comes with a keyboard for transmit and will actually do commercial SITOR as well as both FEC and ARQ Amtor.  Not too many guys run ARQ any more though as I haven't heard it in the RTTY portion of 20 for a year or two now.  According to all the reviews though, the box copies RTTY extremely well and supposedly if you can hear the signal it will decode and display it.  There is a Centronics parallel printer port on it so you can get hardcopy if you want to, but except for a traffic net, or copying RTTY pictures that would really be a waste of paper due to the built in video display (it also has an output so you can use a bigger video monitor if you like).
 
According to FedEx tracking, it'll get here the day after Christmas.  I have a PDF file of the user's manual so I've got all my cables made up and it will connect directly to the K3.  It can run AFSK or direct FSK for transmit and the K3 has a direct FSK input.  That makes it nice because when the signal is tuned for receive, the transmitted signal will be right on frequency and the logging program will log the MARK frequency as it should.
 
Jim - W0EB

> Great sound from the past 
>
> ----------------------------------
> Back to the
> bench, Winter's too valuable to waste.
> I love this radio stuff
> !
> 72  WA0ITP
 


Re: RTTY in days of old

Dale Putnam
 

Wow! That was a trip. 
In the dim past... well, maybe not so dim now, I used to run to the teletype machine, to grab the latest weather forecast,
to append to the end of the newscast, on the local radio station, before I laid another "golden oldie" on for the huge audience. (never knew for sure how many, but I didn't have any trouble at all giving away records or prizes.)
I'd scoot to the tty machine, grab the wx, run to the kitchen grab a cup of coffee, and slip back onto the standup stool, and that was all done in less than 60 sec. (one break).. Trips to the bathroom were reserved for songs. (they lasted about 3 minutes) 
  The sound of the tty machine was never to go over the air... (manager's decision).. if it did, that meant the door to the tty closet, (and it was just a closet), didn't get closed correctly.. You could NOT slam it in haste.. that would automatically cause the phone to ring, manager calling...   "Don't slam the tele door!"  
  
  I also had a nice arrangement of TTy machines in my ham shack too... models 14, 15, 19, 28, 32, 33, and others... 
I finally had to let them all go... the cost of oil ... and all that. ;-)

Thanks Terry, there is no other sound like that.. many try... many fail. 

does anyone ever get all the oil out from under the fingernails?

Have a great day,
 
 
--... ...-- Dale - WC7S in Wy
 
 



To: 4sqrp@...
From: wa0itp@...
Date: Sat, 21 Dec 2013 11:45:52 -0600
Subject: Re: [4sqrp] RTTY in days of old

 

Great sound from the past   http://www.youtube.com/watch?v=gwIhZwmHe2w 
 
----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72   WA0ITP
www.wa0itp.com
www.4sqrp.com


Re: RTTY in days of old

WA0ITP
 

Great sound from the past   http://www.youtube.com/watch?v=gwIhZwmHe2w 
 
----------------------------------
Back to the bench, Winter's too valuable to waste.
I love this radio stuff !
72   WA0ITP
www.wa0itp.com
www.4sqrp.com


Re: SIMPLEST AND CHEAPEST KEYER?

Johnny AC0BQ
 

Yeah Rick,
Best answer yet, keep that pay pal card warmed up!!!
Happy Holidays!
Johnny AC0BQ

"More smiles per Watt!"
Sent from my iPad

On Dec 21, 2013, at 10:23 AM, Rick Bennett <kc0pet@...> wrote:

 

Or you could buy one of each :-)

Rick

From: "Phil Anderson" <aldenmcduffie@...>
To: "wayne dillon" <wayne.dillon@...>
Cc: 4sqrp@...
Sent: Friday, December 20, 2013 8:40:33 AM
Subject: Re: [4sqrp] SIMPLEST AND CHEAPEST KEYER?

 

Thanks Tim, Rick, Tom, Chuck, and Wayne....

I'll look up each on the web and choose one. They all sound good. All I want is
to be able to adjust CW speed with a knob and run my Bengalli (got at Dayton
last year) into it.

72 and Happy Holidays to everyone.

Unc Phil, W0XI  (Lawrence; which is near Lebo, Columbus and St Paul, KS)