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Re: 2n2xx Transceiver

 

i would take 3 boards.
ron, kc0tdj
Re: DDS VFO!

Bob Macklin
 

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Possibly for the lower bands.
?
But some people feel a common VFO? running at 2 to 3 MHz and heterodyned up for the mixer is a better solution
?
I'm working on designing an Elecraft clone. I can't go backpacking anymore so I would like decent transceiver that does all HF bands.Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"

----- Original Message -----
From: wb6ogd
Sent: Sunday, November 10, 2019 7:13 AM
Subject: Re: [qrptech] DDS VFO!

On Sun, Nov 10, 2019 at 12:01 AM, Bob Macklin wrote:
?
The one thing that could be added to the W8TEE VFO is a crystal mixer similar to what is used in the NorCal Sierra and early Elecraft units.
?
Bob,
All you should need is a reprogramming.? No?
73,
Gary
WB6OGD

Re: DDS VFO!

 

On Sun, Nov 10, 2019 at 12:01 AM, Bob Macklin wrote:
?
The one thing that could be added to the W8TEE VFO is a crystal mixer similar to what is used in the NorCal Sierra and early Elecraft units.
?
Bob,
All you should need is a reprogramming.? No?
73,
Gary
WB6OGD
Re: 2n2xx Transceiver

 

Would be interested in 2 boards.? I tried building one of these manhattan style and failed.? As I recall it uses ring diode mixers.
Re: 2n2xx Transceiver

 

Sounds like a great project.? I would be interested in a couple of boards as well.? Thanks.

73/72

Kent KC9LIF
Group Introduction: If you're going to post on the group, reply here!

 

Jim - G3ZQC
Re: 2n2xx Transceiver

 

VK2HHS here, and tied up with a Sierra redux build for the moment.

On 10 Nov 2019, at 18:49, Bob - K2KI <k2ki@...> wrote:

I would like 4 boards (Winter projects are a must)! Just keep us posted as to availability date and price.
I heard about this rig and was excited to see that it might be resurrected from history!
Many thanks for starting the process!

--
73/72 . .
Bob de k2ki
k2ki@...
k2ki.bb@... (Goes to my cell)
FP #4214
SKCC #12195
NAQCC #2337
Re: DDS VFO!

Bob Macklin
 

开云体育

I bought 49er and a W8TEE DDS VFO a couple years ago.
?
I found the W8TEE DDS VFO is what you need to convert many earlier QRP designs to digital tuning. I am currently setting up a NC40 with?a DDS VFO and I plan to do the same with a NorCal Sierra. If I get a NorCal 2N2XX I'll do the same with it.
?
The one thing that could be added to the W8TEE VFO is a crystal mixer similar to what is used in the NorCal Sierra and early Elecraft units.
?
I'm thinking of building a multiband NC40 that way.
?
Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"?

----- Original Message -----
Sent: Saturday, November 09, 2019 1:23 PM
Subject: Re: [qrptech] DDS VFO!

When I built my qrp-tech Norcal 40a I omitted the analog VFO circuitry and used the W8TEE et al DDS VFO (AD9850-based) from the Modular 49er project.

It works well. I am running code by K4KRW that was written for this VFO. I modified it for use with a superhet rig and made a couple of customizations.
It provides RIT, and a nice little iambic A/B keyer as well.?

FWIW, it took about 10 lines of code changes to get this same VFO code to run with an Si5351a in place of a AD9850.?

Cheers

Michael VE3WMB?

Re: 2n2xx Transceiver

 

I would like 4 boards (Winter projects are a must)! Just keep us posted as to availability date and price.
I heard about this rig and was excited to see that it might be resurrected from history!
Many thanks for starting the process!

--
73/72 . .
Bob de k2ki
k2ki@...
k2ki.bb@... (Goes to my cell)
FP #4214
SKCC #12195
NAQCC #2337
Re: Group Introduction: If you're going to post on the group, reply here!

 

Figured I could get by without an introduction for a long time, but I feel a strong urge to request a 2n2xx board…

Paul AF7HL
Re: Group Introduction: If you're going to post on the group, reply here!

 

Bob de k2ki in Vermont here.
Thanks for creating the group!

--
73/72 . .
Bob de k2ki
k2ki@...
k2ki.bb@... (Goes to my cell)
FP #4214
SKCC #12195
NAQCC #2337
Re: Group Introduction: If you're going to post on the group, reply here!

 

Patrick - KF4LMZ
Re: 2n2xx Transceiver

 

I would take at least one.?
Re: Group Introduction: If you're going to post on the group, reply here!

 

开云体育

I may...

On Nov 9, 2019, at 7:01 PM, Ted KX4OM <wirehead73@...> wrote:

Looks like we have a good start!

Re: Group Introduction: If you're going to post on the group, reply here!

 

Looks like we have a good start!
Re: DDS VFO!

Bob Macklin
 

开云体育

The W8TEE DDS VFO can be built on a piece of Vector prototyping board. I would get a 4X6 protoboard with a ground plane and cut it in half
?
The Ardunio NANO acts like a 40 pin IC and the 9850 module acts like a 20 pin IC.
?
The original W8TEE PCB was designed to fit with a 49er .
?
Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"

----- Original Message -----
Sent: Saturday, November 09, 2019 1:23 PM
Subject: Re: [qrptech] DDS VFO!

When I built my qrp-tech Norcal 40a I omitted the analog VFO circuitry and used the W8TEE et al DDS VFO (AD9850-based) from the Modular 49er project.

It works well. I am running code by K4KRW that was written for this VFO. I modified it for use with a superhet rig and made a couple of customizations.
It provides RIT, and a nice little iambic A/B keyer as well.?

FWIW, it took about 10 lines of code changes to get this same VFO code to run with an Si5351a in place of a AD9850.?

Cheers

Michael VE3WMB?

Re: 2n2xx Transceiver

 

I also would like 3 boards, perhaps more if I can drum up interest from my local radio club!

k3wdf Jason in Pennsylvania

On Sat, Nov 9, 2019, 4:42 PM bill K7WXW <K7WXW@...> wrote:
I would buy four or five and see if I can drum up interest in a local group build, too.? 73 Bill K7WXW

Re: 2n2xx Transceiver

 

I would take a few too. Thanks!

--Neil, W2NDG
Radiokitguide.com
Re: DDS VFO!

 

When I built my qrp-tech Norcal 40a I omitted the analog VFO circuitry and used the W8TEE et al DDS VFO (AD9850-based) from the Modular 49er project.

It works well. I am running code by K4KRW that was written for this VFO. I modified it for use with a superhet rig and made a couple of customizations.
It provides RIT, and a nice little iambic A/B keyer as well.?

FWIW, it took about 10 lines of code changes to get this same VFO code to run with an Si5351a in place of a AD9850.?

Cheers

Michael VE3WMB?
Re: 2n2xx Transceiver

 

I would buy four or five and see if I can drum up interest in a local group build, too.? 73 Bill K7WXW
9241 - 9260 of 9435