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softrock40 · Softrock-40 Interest Group

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Group Information

  • Members: 9535
  • Category: Shortwave
  • Founded: Sep 11, 2005
  • Language: English
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Wow, Bill, thanks very much :-) What an interesting article. I've always wondered how you solder those pinless packages. Best Wishes on your small parts, too....
24 Mar 7, 2006
8:52 pm

Garey Barrell
k4oah
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Yes, HG-300 Kees ... From: "Tom Rowley" <tom.rowley@...> To: <softrock40@yahoogroups.com> Date: Tue, 7 Mar 2006 08:50:49 -0800 Subject: Re:...
1 Mar 7, 2006
8:06 pm

windy10605@...
keestheham
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This weekend I made a movie of the actual reflow soldering process. The movie is viewable with a QuickTime viewer, but the file is about 40 Mbytes long. I need...
1 Mar 7, 2006
6:25 pm

S. Cash Olsen
casholsen
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Hello, I've benn having problems soldering surface mount chips, like the FET SOIC16 switch ICs used in downconversion. Often, when I power up, the chips become...
1 Mar 7, 2006
1:59 pm

Frank
transistorma...
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How important is it to include the three foot long audio cable in the v6.0 SoftRock kit? Many builders mount the SoftRock board in a small metal box and use a ...
33 Mar 7, 2006
2:35 am

kd5nwa
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Several have been concerned about the SoftRock v6.0 idea of selecting between two harmonically related bands such as 80m and 40m by only changing the clock...
6 Mar 7, 2006
2:32 am

FRANCIS CARCIA
wa1gfz
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I have received my sample soldering paste from Cash Olsen, KD5SSJ. Tomorrow I will try baking a couple of SMT project boards and see how it works out. Any clue...
47 Mar 7, 2006
12:05 am

T Hoflich
km5h
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Some thoughts....... The specs on the FST switches indicate the "off" switching time is considerably longer than the "on" switching time. Has anyone measured...
6 Mar 6, 2006
7:23 pm

windy10605@...
keestheham
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Hello, Since SB Live external is not USB 2.0 therefore that is not worth it. Any other USB based soundcard that I should look for? 96khz and 24 bits...
1 Mar 6, 2006
6:39 pm

Farhan Shahid
fanoo
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This may also be an opportunity to use the less expensive, low power, DDS parts (AD9834) for QRP HF receiver solutions. Although the signal level drops 9.5 dB...
1 Mar 6, 2006
2:33 pm

windy10605@...
keestheham
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I was playing with the SRV5 last night during the contest. Great fun actually. But I have a question. I'm just using a 16 bit sound card. It's a bargain...
4 Mar 6, 2006
11:04 am

Tony Parks
kb9yig
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Or, as Milt W8NUE, pointed out, the 4 switch technique (used on the SR-40) buys you the additional 6dB voltage shown in Phil's two charts ..... while still...
1 Mar 6, 2006
12:39 am

windy10605@...
keestheham
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Tony, I would suggest leaving the cable in the kit. Thanks! It's nice to have all the kit parts required, when building. Thanks again for all your efforts! ...
2 Mar 6, 2006
12:23 am

zehelmer@...
zehelmer
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Tony, Are you going to use this Yahoo group or the HAMsdr site for ordering? Just so I know which to watch. As to the cable, I would leave it in, it doesn't...
5 Mar 6, 2006
12:05 am

zehelmer@...
zehelmer
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You got it. Say for 21.100Mhz on 15m you need (/3) 7.033Mhz or a (x4) 28.133Mhz crystal and a 21Mhz BPF on the SR-40. If you need more gain use a simple MMIC....
2 Mar 6, 2006
12:03 am

Bill Dumke
billspiro1
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What is the highest operating band that anybody has been able to run either the SoftRock 40 or SoftRock 5? And what kind of results did you see? Bill WB5TCO...
1 Mar 6, 2006
12:01 am

Bill Dumke
billspiro1
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I wonder what all these cell phone products use for mixers at high frequencies ? You know, the little "X" on the part diagram ;o) 73 Kees K5BCQ ... From:...
9 Mar 5, 2006
11:15 pm

Bill Dumke
billspiro1
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Hi Tony, I say forget the cable. Pse count me in for ver 6.0 kit. Tnx es 73 de Larry K3PEG...
1 Mar 5, 2006
10:07 pm

Larry Przyborowski
k3peg
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Hi folks, I'm real confused here and I have not found and answer for this, so please let me pester all the experts out here :-). I have the SRv5 with the 40m...
14 Mar 5, 2006
6:25 pm

wrlabs
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I USED mine in the Ver5 .... include :>) Bill K0AWU...
1 Mar 5, 2006
2:21 pm

Bill K0AWU
patbilldavis
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Hello to all on the list, I have been using Winrad for a couple of weeks now and have it connected to my Softrock-V5 and thought the group might be interested ...
1 Mar 5, 2006
10:26 am

Des
d29602960
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Good Afternoon All, Quite a number have responded with yes Ham Radio does need yet another spin of the SoftRock receiver kits so prototype boards for the...
18 Mar 4, 2006
7:29 pm

kd5nwa
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Greetings all, I have moved the discussion list about Winrad from Yahoo to a mailman-managed listserver. All the previous subscribers have been automatically...
1 Mar 4, 2006
5:37 pm

Alberto I2PHD
adibene
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Good Morning All, The first SoftRock v6.0 is now playing well on 80m and 40m I am running two instances of Rocky and to go between bands requires pressing the...
1 Mar 4, 2006
12:55 pm

kb9yig
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Ken and group, You're absolutely right about the larger boards, for those I have (it was the original hot plate that I purchased) a GE branded product that I ...
2 Mar 4, 2006
12:44 pm

n3hkn
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Eugene, You got it, it might be a day or so, I'll try to do it tonight though. It really is easy and you're suggestion is going to be a small bit of a ...
2 Mar 3, 2006
9:20 pm

jabauzit
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Hello everyone. I have a similar problem like some of the others on here. But they were using thier Softrocks when feeding the Soundcard Line In/mic in My...
1 Mar 3, 2006
7:34 pm

Farhan Shahid
fanoo
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I'm over my head, and could use some help concerning device substitution. In pursuit of an isolator circuit for use in a superhetrodyne SDR, through a friend,...
5 Mar 3, 2006
3:40 pm

KY1K
ky1k@...
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Gérard/F6EHJ just posted schematics, pcb's and code for 2xAD9951 in synchronized mode to deliver I/Q signals or any phase difference at...
5 Mar 2, 2006
11:02 pm

Robert McGwier
rwmcgwier
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Recognizing that DDS control line signals were relatively high speed, I figured that selecting a feedthru capacitor value to use in my new Hammond "box" for...
1 Mar 2, 2006
3:33 pm

de_n4bb
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