Date   
Re: nouveau 75

KM6KJE
 

thank you, Dennis, I have one other question and that is I was sent a module and I built it and installed it but the reception is still bad it sounds like it is out of frequency I know on my big rig icom 7300 I can tune the fine tunning rit to get the voice clear so the only adjustment would be to fool around with the toroids on the nouveau and I did that buy squeezing up the windings to see if I got  a different frequency but there is no bfo and I know it is a am radio the only thing that happens is that I lost wattage around 3900 MHz it was about 2 1/2 watts on my meter with dummy load and at 3803 I was at 5 watts so I am lost? how do I clear up the received voice 
thanks, terry 73

On Tuesday, October 15, 2019, 08:52:03 PM PDT, Dennis Shelton <nadie1943@...> wrote:


The kit comes with 12 inches of 22 AWG stranded and 6 feet of 22 AWG magnet wire, per the bill of materials.


On 10/15/2019 7:34 PM, KM6KJE wrote:
Hi I have one more question to ask and that is what gauge wire is used for the toroids T50-2 and T50-6. Kit Nouveau 75, is it #22 gauge magnet wire?
thanks, terry
On Tuesday, October 15, 2019, 11:51:02 AM PDT, KM6KJE <terry.schulz@...> wrote:


should I rewind them

On Tuesday, October 15, 2019, 11:33:21 AM PDT, nm0s_qrp via Groups.Io <ai9e_qrp@...> wrote:


It should be flatter than this, but given the tolerance errors that can creep in to hand-wound toroids, it's probably not too abnormal.  

Re: nouveau 75

Dennis Shelton
 

The kit comes with 12 inches of 22 AWG stranded and 6 feet of 22 AWG magnet wire, per the bill of materials.


On 10/15/2019 7:34 PM, KM6KJE wrote:
Hi I have one more question to ask and that is what gauge wire is used for the toroids T50-2 and T50-6. Kit Nouveau 75, is it #22 gauge magnet wire?
thanks, terry
On Tuesday, October 15, 2019, 11:51:02 AM PDT, KM6KJE <terry.schulz@...> wrote:


should I rewind them

On Tuesday, October 15, 2019, 11:33:21 AM PDT, nm0s_qrp via Groups.Io <ai9e_qrp@...> wrote:


It should be flatter than this, but given the tolerance errors that can creep in to hand-wound toroids, it's probably not too abnormal.  

Wilderness NC40A sked?

Michael N6MST
 

This is cross-posted in a few IO groups, just FYI.

I have a virgin Wilderness 40A Rev C and want to start sea trials with another 40A. Whether it is a qrp-tech 40A, a Norcal version, or a Wilderness kit, all are good in my mind. Anyone with a 40A interested in a sked around 1000 or 11oo zulu?

Thanks all,
Mike N6MST

Upcoming Event: Wednesday Evening 40 and 80 meter Nets - Wed, 10/16/2019 8:00pm-9:00pm #cal-reminder

main@4SQRP.groups.io Calendar <main@...>
 

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 16 October 2019, 8:00pm to 9:00pm, (GMT-05:00) America/Chicago

Where:40 and 80 Meters

View Event

Organizer: jomatlock@...

Description: The 40 Meter Net will be at 8:00 pm DST central time  on 7.122 +-. QRM
NCS is WQ5RP Terry.

Wednesday evening 80 Meter CW Net. will be at  (8:30PM Central DST Time Wednesday). 
The 80 meter net will be called on 3.564 MHz +/- QRM.
Net control operators are Johnny AC0BQ or Paul N0NBD.

* NEW *  Wednesday evening DMR Voice Net will be at (Thursday) 0300 UTC (9:00PM Central Time Wednesday/)
Four States QRP has a Brandmeister DMR Talk Group (TG31654). Join us to discuss QRP, ask questions, or just ragchew. The Wednesday net is a directed net  but any other time you may use the Talk Group to chat with other QRPers.
Net Control operator is Bert NØYJ.

Re: nouveau 75

KM6KJE
 

Hi I have one more question to ask and that is what gauge wire is used for the toroids T50-2 and T50-6. Kit Nouveau 75, is it #22 gauge magnet wire?
thanks, terry

On Tuesday, October 15, 2019, 11:51:02 AM PDT, KM6KJE <terry.schulz@...> wrote:


should I rewind them

On Tuesday, October 15, 2019, 11:33:21 AM PDT, nm0s_qrp via Groups.Io <ai9e_qrp@...> wrote:


It should be flatter than this, but given the tolerance errors that can creep in to hand-wound toroids, it's probably not too abnormal.  

Re: nouveau 75

KM6KJE
 

should I rewind them

On Tuesday, October 15, 2019, 11:33:21 AM PDT, nm0s_qrp via Groups.Io <ai9e_qrp@...> wrote:


It should be flatter than this, but given the tolerance errors that can creep in to hand-wound toroids, it's probably not too abnormal.  

Re: nouveau 75

nm0s_qrp
 

It should be flatter than this, but given the tolerance errors that can creep in to hand-wound toroids, it's probably not too abnormal.  

nouveau 75

KM6KJE
 

Hi, joe I have recently built the nouveau 75 and I have installed the new board you sent me. it seems like it needs a fine tune adjustment but that's what I am writing about it's that when I use the tuner and go up in frequency I lose wattage is that normal at about 3.806 to 3.820 it reads 5 watts on the wattmeter (I am using a Dosy watt meter) when I put it at say 3.900 MHz I get about 3.5 watts is that normally and if not what may be wrong thanks terry KM6KJE


Re: Nouveau 75

W0MQY
 

Hi Terry,
I don't know anything about this kit or its adjustments.  I was not the one who sent you the board.
I think you need to contact Dave Cripe, NM0S who is the designer of the nouveau 75.  Wish I could
help but I'm not qualified to help you on this kit..
73  Joe  W0MQY

On Tue, Oct 15, 2019 at 10:56 AM KM6KJE <terry.schulz@...> wrote:
Hi, joe I have recently built the nouveau 75 and I have installed the new board you sent me. it seems like it needs a fine tune adjustment but that's what I am writing about it's that when I use the tuner and go up in frequency I lose wattage is that normal at about 8.03 to 8.20 it reads 5 watts on the wattmeter (I am using a Dosy watt meter) when I put it at say 9 MHz I get about 3.5 watts is that normally and if not what may be wrong thanks terry KM6KJE



--
Joe Porter, PhD
SEKARC.net
4sqrp.com

Re: Nouveau 75

nm0s_qrp
 
Edited

This is a 75M transceiver.  You should not be transmitting at 8 or 9 MHz.

73 Dave NM0S

Nouveau 75

KM6KJE
 

Hi, joe I have recently built the nouveau 75 and I have installed the new board you sent me. it seems like it needs a fine tune adjustment but that's what I am writing about it's that when I use the tuner and go up in frequency I lose wattage is that normal at about 8.03 to 8.20 it reads 5 watts on the wattmeter (I am using a Dosy watt meter) when I put it at say 9 MHz I get about 3.5 watts is that normally and if not what may be wrong thanks terry KM6KJE

Re: Nouveau 75 Errata

w9ran
 

On 10/15/2019 1:15 AM, Dennis Shelton wrote:

Has anyone received an answer about the Nouveau 75 Q2's drawing being mis-oriented yet?

Looking at the schematic it certainly seems that it is.
I was waiting for David or someone to reply but I can confirm that the silk-screen is incorrect.   If you look at page 5 of the assembly manual presently on the website it now says that the flat should be oriented toward the right, rather than to the left as indicated by the silk-screen.

73, Bob W9RAN

Re: Nouveau 75 Errata

nm0s_qrp
 
Edited

There are a couple of construction details mentioned in the assembly manual that need repeating here.
1.  The main PCB transistor Q2 must be installed with its large flat face oriented toward the RIGHT side of the board.  The PCB silk screen is INCORRECT.  There are pictures posted that show the transistor installed in the opposite way, these are incorrect.

2.  The installation of the heat sink on Q11 is critical.  The hardware stackup should be screw, passing through flat washer, back of heat sink, black heat sink pad, back of transistor, lock washer, and nut.  The three legs on the heat sink should be snipped off.  Before soldering the transistor to the board, check the spacing between the heat sink and the board to make certain that the sink does not contact any of the surface mount components on the board.  Readjust the sink on the transistor if necessary.  Only then should you solder the transistor down. Finally, be certain that there is no contact between Q11 and Q12 before power up.
There have been pictures posted that show an incorrect hardware assembly.
If the incorrect assembly is used, it is possible for the screw to contact the tab of Q12.  If this happens during power-on, the circuit will be damaged, and somebody will have a bad day.

73 Dave NM0S

Re: Nouveau 75 Errata

WA0ITP
 

I always believe the schematic first. Identify the drain lead on Q2 (from data sheet).  Then, using an ohmmeter,  identify the pad on the board which is connected to C9.  The drain lead goes in that hole.  Hope this helps.
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 10/15/2019 1:22 AM, Gary Kohtala via Groups.Io wrote:

Nothing yet. The picture clearly  shows the large flat side to the left, matching the marking on the board. However the instructions explicitly say orient it to the right, opposite of the marking on the board. Very confusing. Wonder what the result if oriented the wrong way and power applied?

Best regards,

Gary, K7EK

Sent from BlueMail
On Oct 15, 2019, at 02:15, Dennis Shelton <nadie1943@...> wrote:

Has anyone received an answer about the Nouveau 75 Q2's drawing being mis-oriented yet?

Looking at the schematic it certainly seems that it is.


On 10/12/2019 11:02 AM, Gary Kohtala via Groups.Io wrote:
I ran into the same question. Seems like something to verify before turning on the power for the first time.

Best regards,

Gary, K7EK


Sent from BlueMail

Re: Nouveau 75 Errata

Gary Kohtala
 

Nothing yet. The picture clearly  shows the large flat side to the left, matching the marking on the board. However the instructions explicitly say orient it to the right, opposite of the marking on the board. Very confusing. Wonder what the result if oriented the wrong way and power applied?

Best regards,

Gary, K7EK

Sent from BlueMail

On Oct 15, 2019, at 02:15, Dennis Shelton <nadie1943@...> wrote:

Has anyone received an answer about the Nouveau 75 Q2's drawing being mis-oriented yet?

Looking at the schematic it certainly seems that it is.


On 10/12/2019 11:02 AM, Gary Kohtala via Groups.Io wrote:
I ran into the same question. Seems like something to verify before turning on the power for the first time.

Best regards,

Gary, K7EK


Sent from BlueMail

Re: Nouveau 75 Errata

Dennis Shelton
 

Has anyone received an answer about the Nouveau 75 Q2's drawing being mis-oriented yet?

Looking at the schematic it certainly seems that it is.


On 10/12/2019 11:02 AM, Gary Kohtala via Groups.Io wrote:
I ran into the same question. Seems like something to verify before turning on the power for the first time.

Best regards,

Gary, K7EK


Sent from BlueMail
On Oct 10, 2019, at 21:49, "Charles W. Powell via Groups.Io" <yahoo.com@groups.io target=_blank>doctorcwp=yahoo.com@groups.io> wrote:
So is the silk screen for Q2 incorrect on the board?  Looking from the front of the board, the flat side is to the LEFT.  I will wait to hear before I install it.

72,

Charles - NK8O

Bayou Jumper

bobby rolph
 

The Bayou Jumper has been sold. Thanks 73
Bobby

Upcoming Event: Wednesday Evening 40 and 80 meter Nets - Wed, 10/16/2019 8:00pm-9:00pm #cal-reminder

main@4SQRP.groups.io Calendar <main@...>
 

Reminder: Wednesday Evening 40 and 80 meter Nets

When: Wednesday, 16 October 2019, 8:00pm to 9:00pm, (GMT-05:00) America/Chicago

Where:40 and 80 Meters

View Event

Organizer: jomatlock@...

Description: The 40 Meter Net will be at 8:00 pm DST central time  on 7.122 +-. QRM
NCS is WQ5RP Terry.

Wednesday evening 80 Meter CW Net. will be at  (8:30PM Central DST Time Wednesday). 
The 80 meter net will be called on 3.564 MHz +/- QRM.
Net control operators are Johnny AC0BQ or Paul N0NBD.

* NEW *  Wednesday evening DMR Voice Net will be at (Thursday) 0300 UTC (9:00PM Central Time Wednesday/)
Four States QRP has a Brandmeister DMR Talk Group (TG31654). Join us to discuss QRP, ask questions, or just ragchew. The Wednesday net is a directed net  but any other time you may use the Talk Group to chat with other QRPers.
Net Control operator is Bert NØYJ.

Re: Nouveau 75 sensitivity

Dwayne R
 

do not need very much sensitivity for the am radios.  I think what you will find out, you will need an extremely strong am signal in order for them to hear you. 
They may be a 20 db  over 9 to you,  but you will only be a s2 or s3 to them.  

Dwayne.  Ka0aam


On Oct 14, 2019 16:23, Nick Kennedy <kennnick@...> wrote:
That still sounds a little weak to me, although I'm not an AM expert.  A -73 dBm signal is S-9, so you'd think it would be pretty solid. No doubt the % modulation of the signal would come into play. It might be hard to judge the sensitivity of the rig with an unmodulated test signal.

I looked at the manuals for the K3 and for the Drake 2B and neither differentiated among different types of signals in their sensitivity specifications.

73-


Nick, WA5BDU




On Sat, Oct 12, 2019 at 4:35 PM Dave Benson <davek1swl@...> wrote:
Chas-

That's probably OK.  Typical gains for AM detectors run about -15 dB, that is, 15 dB of loss. You'll see much the same behavior reflected in Elecraft's sensitivity specs for AM reception.

- the other Dave- K1SWL




On Sat, Oct 12, 2019 at 5:25 PM WA0ITP <wa0itp@...> wrote:
Hi Chas,

I think that's abt right.  Dave will probably weigh in on the subject. 
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 10/12/2019 11:37 AM, Charles W. Powell via Groups.Io wrote:
Has anyone measured the sensitivity of the Nouveau 75 receiver?  I do not have precision measuring equipment but I have an Elecraft signal generator that gives me 0 dBm, -33 dBm, -77 dBm and -107 dBm.  At -33 dBm I get a good focal signal.  At -77 dBm the signal is there but weak.  At -107 dBm there is nothing at all.  Is this is the range of what I should expect, or should I start troubleshooting the receiver?

73,

Chas - NK8O


Re: Nouveau 75 sensitivity

Nick Kennedy
 

That still sounds a little weak to me, although I'm not an AM expert.  A -73 dBm signal is S-9, so you'd think it would be pretty solid. No doubt the % modulation of the signal would come into play. It might be hard to judge the sensitivity of the rig with an unmodulated test signal.

I looked at the manuals for the K3 and for the Drake 2B and neither differentiated among different types of signals in their sensitivity specifications.

73-


Nick, WA5BDU




On Sat, Oct 12, 2019 at 4:35 PM Dave Benson <davek1swl@...> wrote:
Chas-

That's probably OK.  Typical gains for AM detectors run about -15 dB, that is, 15 dB of loss. You'll see much the same behavior reflected in Elecraft's sensitivity specs for AM reception.

- the other Dave- K1SWL




On Sat, Oct 12, 2019 at 5:25 PM WA0ITP <wa0itp@...> wrote:
Hi Chas,

I think that's abt right.  Dave will probably weigh in on the subject. 
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 10/12/2019 11:37 AM, Charles W. Powell via Groups.Io wrote:
Has anyone measured the sensitivity of the Nouveau 75 receiver?  I do not have precision measuring equipment but I have an Elecraft signal generator that gives me 0 dBm, -33 dBm, -77 dBm and -107 dBm.  At -33 dBm I get a good focal signal.  At -77 dBm the signal is there but weak.  At -107 dBm there is nothing at all.  Is this is the range of what I should expect, or should I start troubleshooting the receiver?

73,

Chas - NK8O