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Re: BATT
Jeremy Utley
I'll speak for Jim's batteries. I've got 4 I picked from him (or his buddy he brought along to Ozarkcon 2013, can't remember which) that are still going strong for me. The ones I have are 12V 17Ah batteries, and I charge them from my Astron PS with one of the KI0BK PwrGates - which also provides instant switchover if AC Mains go out. Jeremy, NQ0M
On Fri, May 8, 2015 at 3:45 PM, Michael McEwen mcewenk5osa@... [4sqrp] <4sqrp@...> wrote:
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Re: TX project advice
Donald Kelly
Jon - Congratulations on building your DC receiver. Not many people build from scratch and even fewer build receivers.
Just a thought for future experimentation. You have “Experimental Methods in RF Design”. Later in the book you will find KK7B’s section on higher performance DC receivers. They are a lot of fun to build.
A good first transmitter design might include W7ZOI’s Universal QRP Transmitter. It is a 1 to 1.5W transmitter using very available parts. It can be a driver for a more powerful TX later on.
This is a good reproduction I found on the WEB. I could send you a copy of the chapter from “Solid State Design for the Radio Amateur”. It is a classic MOPA format that modernized the legendary designs like the 6AG7/6L6 transmitters many of us used as Novices.
http://www.qsl.net/k0kp/hbrew/qrp_sch.html
It is a limited transmitter but will teach you a lot about TX construction. I have used various power amplifiers over the years. I casually operated 1.5W with a DC receiver and a simple TX like this for over a year and logged 40 state and 3 foreign countries.
This is a 20W transmitter I built a few years ago. The basic driver is about 1W driving a 2SC1307. It is VXO and covers about 6KHz.
http://i732.photobucket.com/albums/ww328/Don_K5UOS/100_1786.jpg
Good luck with your project.
K5UOS
From: 4sqrp@... [mailto:4sqrp@...]
Sent: Friday, May 08, 2015 1:05 PM To: qrp-l@...; qrp-tech@...; 4sqrp@...; ba_radio_builders@... Subject: [4sqrp] TX project advice
Greetings Everyone,
I finally have my 40 meter DC receiver in band and working well and the helically wound vertical is all but done. While I want to tweak the AF amp and do some filtering my biggest concern is actually getting on the air before FD.
To this end, I need to build a transmitter. My specifications are... 40 meter, under 5 watts, simple design, commonly/currently available and inexpensive or easily manufactured parts, and now the kicker SSB/CW.
A tall order but hey, you guys, and gals, are the ones who would know. I am skilled in assembly but my EE/RF design skills are still in there infancy. Any suggestions in this area would be greatly appreciated. 72/ 73,
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Re: Certificate?
Don Wilhelm <w3fpr@...>
OK on the number.
toggle quoted messageShow quoted text
I would like to contact any members whose call ends in either DLB or FPR.� I held W8DLB until I moved to Maryland and at that time I had to change my call to the "3" area, and I received W3FPR.� I have since moved to NC which is "4" land but did not change my call - I am still W3FPR. 73, Don W3FPR
On 5/8/2015 7:56 PM, Charles Powell doctorcwp@...
[4sqrp] wrote:
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Re: We're so close!!!
Malachi Doane
Thanks all!
See you on the radio, Mal
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Re: Certificate?
Joshua Gould, K8WXA <jg.k8wxa@...>
I would love a certificate to hang on the wall next to my OMISS and NAQCC membership certificates. I'm #990 according to what I found on the website. 72, Joshua GouldK8WXA EM89pn KX3# 7480 NAQCC # 7704 This message was sent from an iPhone. Please excuse any typos and the brevity of responses
On May 8, 2015, at 20:05, KB4QQJ@... [4sqrp] <4sqrp@...> wrote:
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Re: 4sQRP member lookup program. was (Certificate?)
kb4qqj
Sorry,
Should have changed the subject line in last post.
Randy-KB4QQJ
In a message dated 5/8/2015 8:05:25 P.M. Eastern Daylight Time,
4sqrp@... writes:
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Re: Certificate?
kb4qqj
Don et All,
Dick, K2RFP has written a neat little program that will give you the member
number of several different clubs.
http://www.cwfun.org/zip/ and
look for 5-lookups-setup.zip.
Several other usable programs there as well and all freeware!!
Randy_KB4QQJ
In a message dated 5/8/2015 7:24:21 P.M. Eastern Daylight Time,
4sqrp@... writes:
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Re: Certificate?
Charles W. Powell
toggle quoted messageShow quoted text
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Re: Certificate?
Great idea guys!
toggle quoted messageShow quoted text
A downloadable custom Certificate! Who wants to design it?! I know the web master, I bet we could get him to set us up s link? Johnny AC0BQ
On Friday, May 8, 2015, Dale Putnam daleputnam@... [4sqrp] <4sqrp@...> wrote:
--
QRP....."more smiles per watt" JOHNNY AC0BQ ..72
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Re: Certificate?
Don Wilhelm <w3fpr@...>
How do I find my number?� I signed up for this yahoo group - does
that make me a member?� I do not recall any email response that told
me what my membership number is.
toggle quoted messageShow quoted text
Do I have to do anything other than signing up for the yahoo group to get a number? Certainly, a certificate would be good wallpaper for the hamshack. 73, Don W3FPR
On 5/8/2015 7:17 PM, Dale Putnam
daleputnam@... [4sqrp] wrote:
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Re: Certificate?
Dale Putnam
I think Mal needs a cert. and like Doc says... free advertising.. a no cost option. make it a downloadable one.. with each member inserting his own info, then download it for his own use. Have a great day, --... ...-- Dale - WC7S in Wy To: 4sqrp@... CC: wa0itp@... From: 4sqrp@... Date: Fri, 8 May 2015 15:31:56 -0500 Subject: [4sqrp] Certificate? A prospective member asked me about a member certificate. I don't think we have one, do we? If you all would like, I'll design one for you all to review and comment. I know many amateurs love to display certificates and awards, and it is free public relations for us whenever someone visits the shack or if a picture is published.
72, Doc K5OSA - QTH: EM04sr ARRL 4SQRP #801 - NAQCC #7625 - SKCC #10098 FISTS #17157 - OMISS #9886 LFSARC (Lawton/Fort Sill Amateur Radio Club) Michael T McEwen Lt Col, US Army, Ret Cellular Phone: 580 919-9205 Residence: 580 529-3412
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Re: We're so close!!!
Dale Putnam
Congratulations Mal, Have a great day, --... ...-- Dale - WC7S in Wy #125 4SQRP To: 4sqrp@...; rocket_man77@... From: 4sqrp@... Date: Fri, 8 May 2015 16:12:45 -0500 Subject: Re: [4sqrp] We're so close!!!
See - you check into the Wednesday Night Nets and good things
happen!
Congratulations #1000.
73
Bill
KV6Z
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Re: We're so close!!!
Phil Anderson
Congratulations!
toggle quoted messageShow quoted text
I'm Phil here/ w0xi/ serial # 13, hi..... See you at the next Ozcon in about a year!> ------------------------------------------------------------------------
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Re: We're so close!!!
dekle <dekle@...>
toggle quoted messageShow quoted text
See - you check into the Wednesday Night Nets and good things
happen!
Congratulations #1000.
73
Bill
KV6Z
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Re: BATT
Michael McEwen
This sounds like a really neat battery. The capacity is certainly in my range? What is the voltage? 72, Doc K5OSA - QTH: EM04sr ARRL 4SQRP #801 - NAQCC #7625 - SKCC #10098 FISTS #17157 - OMISS #9886 LFSARC (Lawton/Fort Sill Amateur Radio Club) Michael T McEwen Lt Col, US Army, Ret Cellular Phone: 580 919-9205 Residence: 580 529-3412
On Wed, May 6, 2015 at 2:05 PM, 'Jim Sheldon' w0eb@... [4sqrp] <4sqrp@...> wrote:
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Re: We're so close!!!
davemrtn
Actually, the number of members is displayed on the website. Your
'member number' does not necessarily correlate to the number of
members.
We are still 16 members short of a 1000 members. On 5/8/2015 3:30 PM,
rocket_man77@... [4sqrp] wrote:
-- David Martin - K5DCM Mountain Home, Ar. -+-+-+-+-+-+-+-+-+-+- "It's only "work" if you'd rather be doing something else" - Dean Kamen
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Certificate?
Michael McEwen
A prospective member asked me about a member certificate. I don't think we have one, do we? If you all would like, I'll design one for you all to review and comment. I know many amateurs love to display certificates and awards, and it is free public relations for us whenever someone visits the shack or if a picture is published. 72, Doc K5OSA - QTH: EM04sr ARRL 4SQRP #801 - NAQCC #7625 - SKCC #10098 FISTS #17157 - OMISS #9886 LFSARC (Lawton/Fort Sill Amateur Radio Club) Michael T McEwen Lt Col, US Army, Ret Cellular Phone: 580 919-9205 Residence: 580 529-3412
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Re: We're so close!!!
Malachi Doane
It appears that I'm it, I see I'm #1000 on the web site.
Best 72/3 all Mal // N2QFD
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Re: TX project advice
Bill Cromwell
Hi Jon,
toggle quoted messageShow quoted text
Do you have a suitable filter around which to build transmitter? the TX does NOT need a CW bandwidth filter. there are many SSB bandwidth filters ar hamfests and on eBay. Maybe a list member has one you can get. The 3.395 mc filters for Heath and other radios seem common as dirt. Once you have that filter the rest is much easier. You might have good luck with a phasing SSB rig, too. A combination of of fixed frequency (at IF frequency) and less stringent, homebrew ladder filter can give pretty good results (or so others have testified). 73, Bill KU8H
On 05/08/2015 02:05 PM, Jon Wanzer jon@kk6gxg.com [4sqrp] wrote:
Greetings Everyone,
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TX project advice
Jon Wanzer <jon@...>
Greetings Everyone, I finally have my 40 meter DC receiver in band and working well and the helically wound vertical is all but done. While I want to tweak the AF amp and do some filtering my biggest concern is actually getting on the air before FD. To this end, I need to build a transmitter. My specifications are... 40 meter, under 5 watts, simple design, commonly/currently available and inexpensive or easily manufactured parts, and now the kicker SSB/CW. A tall order but hey, you guys, and gals, are the ones who would know. I am skilled in assembly but my EE/RF design skills are still in there infancy. Any suggestions in this area would be greatly appreciated.
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