Date   

Re: Resources to design transcievers

Phil <w0xiphil@...>
 

Hello Paul,
 
The sources are many; the question is which to look at.
A good starting place might be to check the resources that the ARRL has to offer. Take a look at their website.
 
If it is your first design, I’d suggest that you consider a basic single-conversion receiver with a crystal oscillator.
There you’d need a tuned circuit front end (from antenna), a mixer – such as the NE602 – and an audio amplifier,
perhaps the LM386.
 
You can find circuit configurations (suggestions) for using those chips by using your browser. For example, type in NE602, and you’ll get a
list of websites to look at. Most of the chip vendors include a technical specification and suggestive circuits.
 
Good luck and have fun. One other item. You can use the formulas in the ARRL handbook to figure out what L and C values you’ll need
for each tuned circuit.
 
73,
Phil, W0XI
Lawrence, KS
 
 
 

Sent: Wednesday, November 09, 2016 3:09 AM
Subject: [4sqrp] Resources to design transcievers
 
 

I have been building kits from other countries and decided it was about time to bring my enjoyment to a new level. Instead of building kits I would like to try my hand at designing and building my own transceiver.

I do have a basic understanding in electronics and mathematics, however I have not had much experience in the experimental side of our hobby.


 

Does anyone has any favorite resources they would share?


Thank you,

Paul

KG5NKW




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Re: Resources to design transcievers

gary rheuark <garyk5qnm@...>
 


Hello Paul, What band, what power level and what mode?

I just finished 25 watts CW on 475 KHZ.....Also, an inexpensive 3450 MHZ
AM design.....Progress is being made on a 22 dollar voice transceiver on
2445 MHZ....

I have done a lot of circuit boards also.....The attached photo shows a 3 board set that can be adapted for roughly 200 KHZ to 15 MHZ CW.....

The small board on the left is the CW oscillator-driver board.....All harmonics are at least 60 dBs down.....

The big board in the middle is the FET power amplifier.....Tuned and also has impedance matching to get a 50 Ohm output.....With harmonics.....

The board on the right is a low pass filter that runs cool and harmonics are down at least 60 dBs.....Runs cool at 25 watts.....

All this on a 4" by 6" piece of circuit board.....

As you can gather, I use all bands and modes of operation.....

If I can help.....Gary...K5QNM...EM36 in Missouri..... garyk5qnm@...



From: "paul@... [4sqrp]" <4sqrp@...>
To: 4sqrp@...
Sent: Tuesday, November 8, 2016 9:09 PM
Subject: [4sqrp] Resources to design transcievers



I have been building kits from other countries and decided it was about time to bring my enjoyment to a new level. Instead of building kits I would like to try my hand at designing and building my own transceiver.
I do have a basic understanding in electronics and mathematics, however I have not had much experience in the experimental side of our hobby.
 
Does anyone has any favorite resources they would share? 

Thank you,
Paul
KG5NKW





Tonight's 40m Net

Wayne Dillon
 

Good morning all, yes there will be a 40m net this evening, 19:30 local 01:30z.
I'll entertain suggestions as to alternative times to try but looking at the predictions the band will likely not be in great shape this evening. That said it has surprised us before. I'd also appreciate SWL reports, if you hear me drop an e-mail to the list.
Blessings all de Wayne - NQ0RP
P.S. Paul, are you going to call an 80m net at 20:00 local , 02:00z?

--
 
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 - NQ0RP

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
NAQCC # 0759
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186


Resources to design transcievers

Paul Bonham
 

I have been building kits from other countries and decided it was about time to bring my enjoyment to a new level. Instead of building kits I would like to try my hand at designing and building my own transceiver.

I do have a basic understanding in electronics and mathematics, however I have not had much experience in the experimental side of our hobby.

 

Does anyone has any favorite resources they would share? 


Thank you,

Paul

KG5NKW


cq cq cq 3564

Paul Smith
 

de Paul N0NBD


Sent from Outlook


FOX: Season Opener

Dale Putnam
 

The FOXHUNT season opener in the 40 acre wood is scheduled! The Game Warden is positioned at the Gate... and is waiting with his starting Flag in hand. All set.. ??

YES! The FOX are ready.. K4BAI - John in Ga.. and W9CF - Kevin in AZ.. are pacing in their dens.. anxious and ready.. been waiting all summer long.. so.. are you. the HOUNDS really ready?

  It all happens between the two trees marked 7.030 and 7.050.

And the Game Warden is stoic in his stance to open the gates at exactly 0200 z Wed .. or 7pm MT Tues evening.

Check out the rules - www. qrpfoxhunt.org


Good Luck,
--... ...-- Dale - WC7S in Wy

"Actions speak louder than words"
1856 - Abraham Lincoln


FOX: FOXHUNT SEASON opener

Dale Putnam
 

Greetings!

The 2016-2017 Winter Fox Hunts start this coming Tuesday. Everyone is welcome to participate, and we can still use a few more qualified Foxes.


This is one of the premier events that CQC sponsors, and it gets us a lot of attention across the country, so please support it!  Participate as a Hound, and if you feel up to the task of being Fox don't hesitate to put in an application at http://www.qrpfoxhunt.org


Each Tuesday (40M) and Thursday (80M) there will be two Foxes available-- catch them if you can. It's easy (sometimes) and fun (always) and great training for busting a DX pileup and or handling one if you are the Fox. The Hunts start at 0100Z and run for an hour and a half. All the details can be found at http://www.qrpfoxhunt.org Check out the rules, and bookmark the home page because that's your gateway to the schedule and the results as the season progresses.

The QRP Fox Hunts are also at home on Yahoo Groups at

https://groups.yahoo.com/neo/groups/qfox and even on Facebook: https://www.facebook.com/groups/219719414724171/

or search for QRP Fox Hunt. Both groups are public, so come on in and join us.


Good Luck Tuesday to start it off!!





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

"Actions speak louder than words"
1856 - Abraham Lincoln


Re: Bayou Jumper and Second Sunday Sprint

Paul Smith
 

Hello John and all.

 After the storm blew through i have a new doublet and a new zepp up also a new portable ham shack ready to go! Ill be QRV from Big Hill Lake Cherryvale, KS for the SSS I will be on and giving a try from the lake. My setup for the SSS will be a 44 ft dipole and KX1. I may throw up a EFHW also. Hope to hear lots of guys there de Paul N0NBD



Sent from Outlook




From: 4sqrp@... <4sqrp@...> on behalf of 'John R. Lonigro' jonigro@... [4sqrp] <4sqrp@...>
Sent: Sunday, November 6, 2016 9:02 PM
To: 4SQRP
Subject: [4sqrp] Bayou Jumper and Second Sunday Sprint
 
 

I just inserted "Bayou Jumper" into the subject line to make sure I
grabbed everyone's attention (hi). The Second Sunday Sprint is next
Sunday, November 13th, from 7:00 - 9:00 pm central standard time
(0100-0300Z Monday). It is NOT tonight.

Note: If and when you buy and assemble the Bayou Jumper, a 7122 kHz
crystal is included with the radio. That is the most popular 40M
frequency for both the Second Sunday Sprint and the 4SQRP 40M nets.

With the band conditions lately, it is important that lots of folks tune
in to the SSS. You might even call CQ once or twice, to scare up some
contacts.

You can expect one or two additional reminders as the week progresses.

72,

John AA0VE


Bayou Jumper and Second Sunday Sprint

John Lonigro
 

I just inserted "Bayou Jumper" into the subject line to make sure I grabbed everyone's attention (hi). The Second Sunday Sprint is next Sunday, November 13th, from 7:00 - 9:00 pm central standard time (0100-0300Z Monday). It is NOT tonight.

Note: If and when you buy and assemble the Bayou Jumper, a 7122 kHz crystal is included with the radio. That is the most popular 40M frequency for both the Second Sunday Sprint and the 4SQRP 40M nets.

With the band conditions lately, it is important that lots of folks tune in to the SSS. You might even call CQ once or twice, to scare up some contacts.

You can expect one or two additional reminders as the week progresses.

72,

John AA0VE


Re: Bayou Jumper

Johnny AC0BQ
 

It will be available in a couple of weeks!
Keep an eye on the reflector and your finger on pay pal!
72
Johnny 


On Sunday, November 6, 2016, deadgoose@... [4sqrp] <4sqrp@...> wrote:
 

Is this kit available? Link? Price?  I believe a new version is out?


73 /paul W3FIS



--
QRP....."More smiles per Watt"
72
JOHNNY AC0BQ  ..




Bayou Jumper

deadgoose@...
 

Is this kit available? Link? Price?  I believe a new version is out?


73 /paul W3FIS


NS-40 is back

david cripe <ai9e_qrp@...>
 

For those who missed out on an opportunity to get an NS-40 last weekend, I kit as many as my schedule permits, seeing how my employee KE0JOL is ALWAYS busy with homework and orchestra rehearsals, I'm not getting much help!  I finished 10 more tonight, they are up on eBay, good luck!  




73 Dave NM0S


For Sale because it is wasted on me...

davemrtn
 

I have this fantastic radio and it is being wasted by me because of non-use. 

The items listed below will be sold as a complete package only.

I am asking $2000 and I will hand deliver within a half day drive of my home QTH, otherwise buyer will pay actual shipping costs to the buyers QTH via your preferred shipper.

Here's the list below....

Elecraft KX3 Transceiver -            949.95
including:
MH3 hand microphone -                59.95
Internal Antenna Tuner -               199.95
Battery box and charger -                79.95
Internal 2 meter transverter -       259.95
KXPD3 paddle -                                129.95
KXFL3 Internal
Dual-Passband Roofing Filter -       149.95
Gems Products KX3  Combo
 of End Panels and Cover -                 69.00
Elecraft KX3 Desk Stand -                   24.95
KX3-PCKT Accessory Cable Set -        19.95
SRH77CA 2m/20cm
 Antenna w/SMA connector -            22.95
                ------
                                                         $1,966.50


Elecraft PX3 Panadapter -                  499.95
Interconnecting cables to KX3 -
GEMS end plates and Lexan cover -    68.00
Elecraft PX3 Desk Stand -                      23.95
                -------
                                                             $591.90


KXPA100 100 watt amplifier -                    749.95
KXAT100 Internal Auto Antenna Tuner -    379.95
Cabling to interconnect with a KX3 -            49.95
                    ------
                                                                   $1,179.85

Total Cost for all 3 above - $3,738.35, and it is all yours for $2000.00

 
Payment by Certified Check or Cash, no PayPal or personal check.

-- 
David Martin - NA1MH - Mountain Home, Ar.
-----------------------------------------


Re: What's going on around your shack?

 

Not much here but I pulled out the old MFK 5 WATT CW rigs and went over them/
No fancy readout but now that the old FBS stations were shut down,there is 1 more pot that can be turned for better sensitivity
The 40 meter has both CW filter and  keyer installed and the 20 meter has the CW filter
APPX 6 watts under the MFJ Power supply
BOB AF2DX
 

In a message dated 11/5/2016 5:19:52 P.M. Eastern Daylight Time, 4sqrp@... writes:
 

Wow !

Looks like when you finish you will have a monster of a radio !!!

NA1MH


On 11/5/2016 14:31, Tom Sevart tmsevart@... [4sqrp] wrote:
 

I hope to get my 40M "Frankenrig" completed soon. It's an NS-40
xmitter, VRX-1 receiver, Norcal keyer, and T/R switch copied from an
MFJ-9015. I worked on making the front panel at the builder's meeting
at Joe W0MQY's house Thursday evening, and today I'm painting it in
between working on other projects.

Sometimes it's so hard to take time away from family to work on radio
projects.

--
Tom Sevart N2UHC
St. Paul, KS

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--
David Martin - NA1MH - Mountain Home, Ar.
-----------------------------------------


Re: What's going on around your shack?

davemrtn
 

Wow !

Looks like when you finish you will have a monster of a radio !!!

NA1MH


On 11/5/2016 14:31, Tom Sevart tmsevart@... [4sqrp] wrote:
 

I hope to get my 40M "Frankenrig" completed soon. It's an NS-40
xmitter, VRX-1 receiver, Norcal keyer, and T/R switch copied from an
MFJ-9015. I worked on making the front panel at the builder's meeting
at Joe W0MQY's house Thursday evening, and today I'm painting it in
between working on other projects.

Sometimes it's so hard to take time away from family to work on radio
projects.

--
Tom Sevart N2UHC
St. Paul, KS

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-- 
David Martin - NA1MH - Mountain Home, Ar.
-----------------------------------------


Re: What's going on around your shack?

Tom Sevart
 

I hope to get my 40M "Frankenrig" completed soon. It's an NS-40 xmitter, VRX-1 receiver, Norcal keyer, and T/R switch copied from an MFJ-9015. I worked on making the front panel at the builder's meeting at Joe W0MQY's house Thursday evening, and today I'm painting it in between working on other projects.

Sometimes it's so hard to take time away from family to work on radio projects.


--
Tom Sevart N2UHC
St. Paul, KS


Hi-Per-Mite Filter

WA0ITP
 

Our very popular Hi-Per-Mite does a great job also - the web page is here.
http://www.4sqrp.com/HiPerMite.php 

The links under the Documentation header show how well this little filter performs, you can actually hear it in action .  It is a very pleasant sounding narrow band pass filter, and is amazing in crowded band condx.  As a band pass filter it also reduces or eliminates power line hum that is sometimes heard in DC receivers.  SCAFs are low pass, still a good filter but different from a band pass. 

Pse checkout the links, I'm sure you'll be impressed, the price is right and it's an American product.
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 11/5/2016 8:21 AM, Paul Ross deadgoose@... [4sqrp] wrote:

 

You will find that the SCAF filter makes an amazing difference. I use a Chinese one on my MFJ Cubs with excellent results.

Sent from my iPad



Re: QRP IS N OT!!!!!!!!!!!!

Paul Ross <deadgoose@...>
 

You will find that the SCAF filter makes an amazing difference. I use a Chinese one on my MFJ Cubs with excellent results.

Sent from my iPad


Re: What's going on around your shack?

John Raynsford
 

 Howdy to all. Built the 20 & 40 mtr versions of the Universal 1 Watter
by W8DIZ. Having fun with that now that winter has arrived here.

72/73 de AL7JK, John


Re: QRP IS N OT!!!!!!!!!!!!

David Wilcox K8WPE
 

Bob,

Maybe you should switch back to tube rigs.  When I was a kid the rigs themselves warmed my bed room quite well.  Hi Hi!

Dave K8WPE



On Nov 4, 2016, at 10:53 PM, beargyrils@... [4sqrp] <4sqrp@...> wrote:

 

I have two China rigs and  building up the audio amp for it because the audio just is not for my ears.
Then the L match tuner,then cords for the SCAF filter,Then the tuner.
Gas took a 20 cent hike here in 2 days so that knocks me out of keeping warm during the winter.
Sent away for a 5 watt audio AMP from Amazon.
I have one here I use on a few cheap guitars.
This will work lout fine for the China Rigs
BOB AF2DX

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