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40 Meter free zone
KD5NWA
In the area I live right now, I have high voltage lines (500KV) on three sides about a 1/8 to 1/4 mile away.
The weird thing is I get practically no signals on 40 meters, and when I do they are very weak. I have several receivers to listen with a SR-40, TS-940, TS-930, TS-830, FT-817, and a TenTec Corsair, it's the same with all the radios. 80M, 20M is teaming with signals and low noise. I have used a Delta Loop, and a Random wire antenna, with no difference other than noise. Has anyone encountered anything so weird? For a while I thought my SR-40 was not working, until I tried to transmit 2 watts into a dummy load, which I could pick up on the SR-40. Cecil Bayona KD5NWA www.qrpradio.com I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ... |
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29.000 mHz crystals
Michael Blake
Is anyone aware of a ready source of 29.000 mHz fundamental crystals?? That would center the SR40 on 7.250.
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Or any readily available crystals in the range of 28.696 to 29.104.? This would place the receiver within the 7.150 through 7.300 phone band.
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73 - Mike - K9JRI
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30M crystals still available for the SoftRock V4.0
Bruce Beford
As a reminder, I still have plenty of the 40.500Mhz fundamental-mode
crystals needed to put the Version 4.0 or earlier SoftRock on 30M. These crystals yield a center frequency of about 10.125 Mhz. This allows nearly full-band coverage of 30M with the SoftRock. You will need to change C6 and C7 in the oscillator from 100pF to about 33Pf. Details are in the N1RX folder of the Photos section of this group. The price for US delivery is $2.00 each. For foreign addresses (including Canada) the price is $2.50 for one, $2.00 each for two and up. You may send payment via PayPal to bruce.beford@... I will fill orders on a first-come, first served basis. Any questions? Email me direct, and I'll answer as best I can. 73, Bruce N1RX |
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Re: group buy, crystals
kb9yig
Hi Art,
If you or others could come up with a short list of SMT crystal case sizes you might like to use, I will see what can be done to include that option. Yes, the band specific board will be available in greater quantity and as a separate item in addition to two being included in the kit. I am needing to test the QSD at the higher frequency bands to see what the limitations will be. I am wanting to have an exciter function that will output at least 200mW when we get to that part of the design. Thanks, Tony KB9YIG Have done some checking in the last couple of hours and surfacemount crystals are the coming trend and in the long term, they should bemore available. Many of these builders want the smaller SMT type ofcrystals. could elect to use anything they can get their hands on, which is a goodthing. I'd like one for 40 meters extra band, one for the 40 meter QRP cwband, one for 40 meter phone, one for the 80 meter QRP cw band, one forthe lowfer 185 Khz band, and one for the part 5 experimental band (137is a lot to be said for having a crystal, which is simpler, cheaper,and I'm a happy camper!with each Thekit but not include crystals and other band specific components. provided in thegenerally needed components for these top boards would be size with thekit and would include the cores for L21, L22 and T21. such as thecrystal mounded parallel to the PCB. Other crystal case sizes, area provide.stubby version of the HC49U used in the v4.0, will fit in the
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Re: SoftRock v5.0 schematic
pe1nnz
Hi Tony,
With the introduction of the two switch QSD, the need for a bifiliar winding on the secondary transformer is maybe no longer necessary. I do not see the added value of the inverted signal anymore, since I think that the same information could be also found on the non-inverted part (is this true?). 73, Guido --- In softrock40@..., "kb9yig" <raparks@c...> wrote: am working on the board layout but am quite willing to make changes that |
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Re: group buy, crystals
--- In softrock40@..., KY1K <ky1k@p...> wrote:
Is it asking to much to extend the pads for the crystal so that anThe request to modifiy the pads to be able to use smt crystals seems reasonable. I second the resquest... While I will ultimately have a DDS to control the frequency, there isAmen. Not to mention that with any DDS you have to deal with the spurs. While there are some tricks to be done to alleviate this, a crystal is a much simpler solution unless you "just have to" cover a large freq range. With the planned analog switch, what will the upper usable receiveI am sure it will work on 10 meters pretty well. There is a problem with increasing noise figure of the QSD with frequency to be dealt with yet. Maybe Tony can tell us if 6 meters is a possibility. 73 de Phil N8VB |
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Re: group buy, crystals
KY1K
Hi Tony,
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Is it asking to much to extend the pads for the crystal so that an SMT type crystal can be soldered without having to jury rig something? Have done some checking in the last couple of hours and surface mount crystals are the coming trend and in the long term, they should be cheaper and far more available than the metal housing types. The microprocessor/PIC industry is growing and might make crystals more available. Many of these builders want the smaller SMT type of crystals. If the PCB etchs were slightly modified, users of the modules could elect to use anything they can get their hands on, which is a good thing. I sure hope you plan to make the top boards available separately. I'd like one for 40 meters extra band, one for the 40 meter QRP cw band, one for 40 meter phone, one for the 80 meter QRP cw band, one for the lowfer 185 Khz band, and one for the part 5 experimental band (137 Khz) ham band. While I will ultimately have a DDS to control the frequency, there is a lot to be said for having a crystal, which is simpler, cheaper, uses less? battery power and (in general) makes the softrock more 'portable' and much more self contained. With the planned analog switch, what will the upper usable receive frequency be?? Will it work on 10 meters, 6 meters? Can't wait for the quadrature transmit exciter option Tony, an AWESOME addition! Give me 20 milliwatts output power capability and I'm a happy camper! Regards, Art At 04:08 PM 10/20/2005, you wrote: Good idea Art. |
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Re: Rocky 1.06
KD5NWA
< >
At 03:36 PM 10/20/2005, you wrote: Where can one find a copy of Rocky 1.06 or 1.05 ?Cecil Bayona KD5NWA www.qrpradio.com I fail to see why doing the same thing over and over and getting the same results every time is insanity: I've almost proved it isn't; only a few more tests now and I'm sure results will differ this time ... |
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Re: Rocky 1.06
Where can one find a copy of Rocky 1.06 or 1.05 ?
I checked the groups file section. ? Stan --- In softrock40@..., "Alex, VE3NEA" <alshovk@d...> wrote: with some sound cards. It should also work with Windows ME. |
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Re: group buy, crystals
Tony Parks
Good idea Art.
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I am thinking about providing two of the band specific top boards with each kit but not include crystals and other band specific components. The generally needed components for these top boards would be provided in the kit and would include the cores for L21, L22 and T21. The v5.0 top board is being layed out for a HC49U crystal case size with the crystal mounded parallel to the PCB. Other crystal case sizes, such as the stubby version of the HC49U used in the v4.0, will fit in the area provide. 73, Tony KB9YIG ----- Original Message -----
From: "KY1K" <ky1k@...> To: <softrock40@...> Sent: Thursday, October 20, 2005 1:20 PM Subject: [softrock40] group buy, crystals Greetings all, |
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Re: group buy, crystals
Michael Blake
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Re: SharpDSP Mini Console with Analog Meter
EricJ
I took a few years off ham radio to play seriously
with MS Flight Simulator. My main interest was developing authentic instruments for 1940's era aircraft. I wrote the "guts" in C and a friend in North Carolina did the graphics. Our biggest project was a DC-3, but we did a number of single instruments and controls for other panel designers who were working on '40s and 50's era general aviation aircraft. It is such a thrill to sit in front of beautifully rendered analog instruments. There is an almost organic look to analog instruments and radios that is very satisfying. Even the video game generation is interested in the retro look of early motorcycles, for example. Again, thanks for recognizing this with analog meter options on your Console. The new square S-meter is terrific. Eric KE6US www.ke6us.com --- Phil Covington <p.covington@...> wrote: Hi Eric, --------------------------------------------------------------------~->
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__________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 |
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group buy, crystals
KY1K
Greetings all,
I talked to a crystal manufacturer several years ago about buying a custom crystal. The price quoted for my single piece was absolutely terrifying! I still have night mares about it:>: But, I remember part of the discussion regarding multiple pieces of the same frequency being MUCH cheaper. Further, as the call progressed, I learned that the crystals became even much cheaper if I didn't need the high stability cut (which I think was an 'AT'). On top of that, the prices were much cheaper still if you didn't specify an exact frequency.....which meant you didn't need .005 percent tolerance with respect to the oscillator frequency. And, even the packaging impacts the price....smaller packages are cheaper although to a lesser degree. Since Tony appears to be making the new softrock with the frequency determining components on a separate board, changing bands is as easy as plugging in a different daughter board. Perhaps we (as a group) could order crystals in bulk to get the crystals at lower cost? Perhaps we could ask Tony to have the crystal board etch pattern set up to accommodate different crystal packages? Since the softrock might eventually have a quadrature transmitter board, perhaps some might like the option of ordering SSB crystals at some time too? I personally don't mind if the crystal is a few KC one side or the other of the intended frequency. I also don't mind an SMT package and I don't mind if the temperature vs frequency change is a little higher than more expensive crystals (as long as it's not way out of whack). Is there any interest in a group buy of 'experimenter grade' crystals??? If so, what price is minimally acceptable and what frequencies would you order if someone was willing to coordinate a group buy? Ragards, Art |
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Re: Files area access
KY1K
I did manage to fix the problem, after more than a few years of trying!
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A big thanks goes to Dave, W5DHM. Dave sent me Tony's latest softrock schematic and advised me he has no problems accessing the files area, but that he has a yahoo email account. So rather than buck the system, I decided to join it. I now have an anonymous yahoo email account and find that I can access any of the yahoo groups file areas without a problem IF I I click on the link from the yahoo email page if the message has been received and opened via the yahoo email webpage. Clearly yahoo wants you to use yahoo email to read yahoo email groups...I'm only to happy to oblige. It's not a perfect solution and I feel like having to set up a dummy yahoo email account just to get files area access shouldn't be necessary. But, yahoo makes the rules, not me. So, I don't feel too bad about going along for ride. Anyone who has a similar problem can solve it in the same manner, write me OFF-LIST if you have questions. Art ?At 10:56 PM 10/19/2005, you wrote: How do I get to the files area? I've never been able to get to any files area on Yahoo more than once, and I have no idea why. I've written to yahoo 3 times in the last year and have received no reply from them. |
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Re: SharpDSP Mini Console with Analog Meter
Bruce Beford
Very Cool! Thanks Phil!
73, Bruce N1RX --- In softrock40@..., "Phil Covington" <p.covington@g...> wrote:
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Re: SharpDSP Mini Console with Analog Meter
Hi Eric,
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Beppe IK3VIG sent me a really nice meter face. I uploaded the new version to my website today. You can see a screen shot there. 73 de Phil N8VB --- In softrock40@..., EricJ <eric_ke6us@y...> wrote:
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Re: Rocky 1.05 released
Alex,
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It looks like Rocky 1.05 now runs on my PC. But there appears to be some kind of strange feedback problem when I play the wav file. Hard to describe. But at least it runs now. Will look into the other problem later. Thanks, Bill WB5TCO Alex, VE3NEA wrote: Rocky 1.05 is now available. I significantly re-worked the WDM part of the program. The new version may solve the remaining problems, or it may not work for you at all - make a backup copy of your old version before installing 1.05. |
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Files area access
KY1K
How do I get to the files area? I've never been able to get to any files
area on Yahoo more than once, and I have no idea why. I've written to
yahoo 3 times in the last year and have received no reply from
them.
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I belong to the LTSpice group and this group, which is very important to me. But the files area remains closed to me and unavailable. If I sign up for a new yahoo account and jump through the hoops, I get access to one groups files area, but only once. Within 24 hours, it prompts me for the password (again) and then tells me it isn't valid (again), and I have to go through the process? of registering (again) under a different name.......and the loop repeats, over and over. I've even tried getting a throw away email account just to subscribe to yahoo email groups, but somehow yahoo knows I receive email from multiple groups on different email accounts, and all access is gone (again) within 24 hours. I'd really like to have access to the files area, but it doesn't work (for me). If someone would send me a copy of the new softrock schematic, I'd appreciate it. Forgive me if access to the files area is off-topic.....but I keep seeing people post to the files area and I'd like to see the files! Thanks, Art At 09:20 PM 10/19/2005, you wrote: Good Evening All, |
Alex, VE3NEA
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