Re: beacon receiver
Hi Paul
WHat is the link?
73 Hans G0UPL
http://www.hanssummers.com
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"hanssummers2000" <hans.summers@...>
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#81
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Re: beacon receiver
http://www.pongrance.com/gcrx-fixed.html
Scroll down a bit on the page to find the lower cost partial receiver kit.
Mike
WE0H
hans wrote:
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Mike-WE0H <we0h@...>
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#82
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Re: beacon receiver
I don't know, using 5068.8kc rocks would end up with a 2.4kc center freq in the audio output.
Hans, what do you think?
Mike
WE0H
Paul D wrote:
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Mike-WE0H <we0h@...>
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#83
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Re: beacon receiver
I've seen this too.
My thoughts were to use the 18.138MHz crystals from Genesis radio (http://www.genesisradio.com.au/order.html) for the LO, and an 8 MHz IF.
Clayton
VK1TKA
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"Clayton G" <clayton@...>
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#84
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Re: beacon receiver
MIke in the bfo circuit you could replace the trimmer cap with and inductor and move the bfo freq to the lower side of the "window" of the filter and rec upper side band ala Bitx20. the first mixer
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"Paul Daulton" <k5wms@...>
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#85
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Re: beacon receiver
http://www.pongrance.com/gcrx-fixed.html
Sorry in my excitement I forgot to include this.
I have the Norcal dds , which I contemplated using in a multiband Bitx. Not much has been written about 30
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"Paul Daulton" <k5wms@...>
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#86
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Re: beacon receiver
Hi Mike, Paul et al
Certainly the frequency of the 5068.8 rocks can be pulled easily.
One thing to bear in mind: This receiver is a very basic design utilising two SA602's. The strong signal
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"hanssummers2000" <hans.summers@...>
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#87
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Re: beacon receiver
Clayton thanks for the link to Genesis. Nice offerings of kits, parts, and xtals. Mono caps npo at very attractive price!
73 Paul k5wms
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"Paul Daulton" <k5wms@...>
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#88
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Re: beacon receiver
Hi Hans,
Add me to your list for the receiver kit. Tell me when and how you would like payment and I will get it to you fast.
Many thanks,
Mike
WE0H
hanssummers2000 wrote:
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Mike-WE0H <we0h@...>
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#89
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online lowfer grabber
Another qrss site that may be of interest is Ralph's, W5JGV, online grabbers. Part 15 rules in the US permit unlicensed operation on 160 to 190 khz with 1 watt input to a 50 ft antenna.
See
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"Paul Daulton" <k5wms@...>
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#90
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NP0 Caps
Greetings from sunny England,
Those of you who have built the beacon kits will have noticed that we do not use NP0 caps. In fact I cannot remember the last time I used them. Yet these beacons are
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"Stephen" <squirrox@...>
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#91
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Re: NP0 Caps
Hi Steve et al
Speak for your own part of England! Here in London, the sun has disappeared behind some thick clouds.
Personally I think NPO caps might be useful sometimes, but generally are
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"hanssummers2000" <hans.summers@...>
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#92
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Re: NP0 Caps
my experience is not all npo caps are created equal. I suspect many are mismarked as happens with nuts and bolts. Mono caps or cog as they are sometimes called exhibit better stability.
My beacon is
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"Paul Daulton" <k5wms@...>
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#93
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Re: NP0 Caps
I have to agree with Hans . NP0 caps are fine in some applications , but not all . I just changed a pair of them out in a filter and replaced them with some high quality "glass" capacitors , which
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"Charlie , W5COV" <cvest@...>
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#94
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Re: NP0 Caps
NP0 caps become much more important when going cold... not such an issue for
ham electronics which will likely never see temps below 0C
Matt
W8ESE
sent from my VIC-20
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Matt Palmer <kd8dao@...>
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#95
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Re: NP0 Caps
I use that Lyle K0LR style thermistor crystal heater in my freq counter. It has maintained better than 1hz stability for over a year now.
Mike
WE0H
Charlie , W5COV wrote:
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Mike-WE0H <we0h@...>
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#96
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WE0H Grabber new address...
As I figured would happen with a freebie website, they deleted my account tonight. No surprise there. So go to:
http://www.we0h.us/argo/
and lets see how long that Grabber survives. This is my pay per
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Mike-WE0H <we0h@...>
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#97
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Tutorial on programming AT Tiny chips
Good morning one and all,
For those of you who are interested in learning how to program the AT Tiny chip (we use the AT Tiny 13 in the beacon kit) there is an excellent tutorial at
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"Stephen" <squirrox@...>
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#98
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WE0H Grabber back again!!!
http://www.qsl.net/we0h/argo/
New server once again. Lets see how long this lasts before it locks up...
Mike
WE0H
EN35hj
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Mike-WE0H <we0h@...>
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#99
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30 METER BEACON PHOTOS AND CAPTURES
I HAVE CREATED A PHOTO FILE "K5WMS" WITH PHOTOS OF MY BEACON CONSTRUCTION AND INSTALLATION.
ALSO INCLUDED ARE CAPTURES FROM KL1X/5 IN BARTLESVILLE,OK AND W4HBK FROM PENSACOLA FL.
I AM IN CENTRAL
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"pgdaulton" <k5wms@...>
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#100
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