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beacon receiver

"Paul Daulton"
 

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I found a link to n3zi's site where he has a gen coverage rx kit suitable for 30m beacon op with dds or xtal control.
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I will have to check microprocessor xtals for combo that will cover 10.140. 5.068if and 5.068 injection woiuld give 10.136? tweaking the xtals slightly would bring it up to 10.140 or use spectran which will go up to 5khz.
?
comments welcome. Neat kit for $19.95.
?
Paul k5wms
"hanssummers2000"
 

Hi Paul

WHat is the link?

73 Hans G0UPL

--- In QRPLabs@..., "Paul Daulton" <k5wms@...> wrote:

I found a link to n3zi's site where he has a gen coverage rx kit suitable for 30m beacon op with dds or xtal control.

I will have to check microprocessor xtals for combo that will cover 10.140. 5.068if and 5.068 injection woiuld give 10.136 tweaking the xtals slightly would bring it up to 10.140 or use spectran which will go up to 5khz.

comments welcome. Neat kit for $19.95.

Paul k5wms
Mike-WE0H
 



Scroll down a bit on the page to find the lower cost partial receiver kit.

Mike
WE0H



hans wrote:

Hi Paul
WHat is the link?
73 Hans G0UPL
Mike-WE0H
 

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:

I found a link to n3zi's site where he has a gen coverage rx kit suitable for 30m beacon op with dds or xtal control.
I will have to check microprocessor xtals for combo that will cover 10.140. 5.068if and 5.068 injection woiuld give 10.136 tweaking the xtals slightly would bring it up to 10.140 or use spectran which will go up to 5khz.
comments welcome. Neat kit for $19.95.
Paul k5wms
"Clayton G"
 

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I've seen this too.
My thoughts were to use the 18.138MHz crystals from Genesis radio () for the LO, and an 8 MHz IF.
?
Clayton
VK1TKA
?

----- Original Message -----
From: Mike-WE0H
Sent: Thursday, June 17, 2010 4:22 PM
Subject: Re: [QRPLabs] Re: beacon receiver

?



Scroll down a bit on the page to find the lower cost partial receiver kit.

Mike
WE0H

hans wrote:
>
>
>
> Hi Paul
>
> WHat is the link?
>
> 73 Hans G0UPL
>

"Paul Daulton"
 

开云体育

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 xtal could be massaged to get right on freq. I built a similar rec for lowfer using 5.0 mhz injection and a 5.185 filter. It rec 185 khz usb. Stability wasnt good enough for qrss 30 but it would work ok on qrss 3. I also built a tx strip for 185 khz first mixer changed to bal mod at 5.185khz second mixer to tx mixer.
?
N3zi's dds generator would make this rec a real winner. Some where I have a box of backlit displays and ......
?
Paul

----- Original Message -----
From: Mike-WE0H
Sent: Thursday, June 17, 2010 1:34 AM
Subject: Re: [QRPLabs] 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:
>
>
> I found a link to n3zi's site where he has a gen coverage rx kit
> suitable for 30m beacon op with dds or xtal control.
>
> I will have to check microprocessor xtals for combo that will cover
> 10.140. 5.068if and 5.068 injection woiuld give 10.136 tweaking the
> xtals slightly would bring it up to 10.140 or use spectran which will go
> up to 5khz.
>
> comments welcome. Neat kit for $19.95.
>
> Paul k5wms
"Paul Daulton"
 

开云体育

?
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 m with the bitx since it is mainly a phone rig but it could be adapted for 30m rec. I have 20m bitx and 80 meter bitx and an IF board with 9.0mhz xtals I was going to use in the multi band, probably should try that first.
?
Thanks for the interest Hans,
73 Paul

----- Original Message -----
Sent: Thursday, June 17, 2010 12:57 AM
Subject: [QRPLabs] Re: beacon receiver

?


Hi Paul

WHat is the link?

73 Hans G0UPL


--- In QRPLabs@..., "Paul Daulton" wrote:
>
> I found a link to n3zi's site where he has a gen coverage rx kit suitable for 30m beacon op with dds or xtal control.
>
> I will have to check microprocessor xtals for combo that will cover 10.140. 5.068if and 5.068 injection woiuld give 10.136 tweaking the xtals slightly would bring it up to 10.140 or use spectran which will go up to 5khz.
>
> comments welcome. Neat kit for $19.95.
>
> Paul k5wms
>
"hanssummers2000"
 

Hi Mike, Paul et al

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?
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 performance, IP3 and Dynamic range, AM broadcast breakthrough etc will all be quite poor.

Steve G0XAR and I are currently working on a QRSS receiver kit to complement the QRSS beacon kit. The kit price will probably be somewhere in the range $15-$30, I can't be more precise yet. This will not be a simple, basic receiver! My design goals for this receiver are as follows:

+ Very high performance, single band receiver
+ Single signal reception (not Double-Sideband)
+ Crystal local oscillator, or option for DDS input
+ Easy to build: no complicated adjustments, no test equipment needed
+ Low cost, in the range $15-$30
+ Output direct to sound card input, will work with Argo etc

By "high performance", I mean that this receiver has a strong front end with an IP3 of around +30dBm, which will outperform the vast majority of commercial ham equipment, let alone homebuilt.

I hope to have this ready in a few weeks. So if you can wait, it might be worth waiting for ;-)

72/3 Hans G0UPL
"Paul Daulton"
 

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Clayton thanks for the link to Genesis. Nice offerings of kits, parts, and xtals. Mono caps ?npo? at very attractive price!
?
73 Paul k5wms

----- Original Message -----
From: Clayton G
Sent: Thursday, June 17, 2010 6:50 AM
Subject: Re: [QRPLabs] Re: beacon receiver

?

I've seen this too.
My thoughts were to use the 18.138MHz crystals from Genesis radio () for the LO, and an 8 MHz IF.
?
Clayton
VK1TKA
?
----- Original Message -----
From: Mike-WE0H
Sent: Thursday, June 17, 2010 4:22 PM
Subject: Re: [QRPLabs] Re: beacon receiver

?



Scroll down a bit on the page to find the lower cost partial receiver kit.

Mike
WE0H

hans wrote:
>
>
>
> Hi Paul
>
> WHat is the link?
>
> 73 Hans G0UPL
>

Mike-WE0H
 

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:

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 performance, IP3 and Dynamic range, AM broadcast breakthrough etc will all be quite poor.
Steve G0XAR and I are currently working on a QRSS receiver kit to complement the QRSS beacon kit. The kit price will probably be somewhere in the range $15-$30, I can't be more precise yet. This will not be a simple, basic receiver! My design goals for this receiver are as follows:
+ Very high performance, single band receiver
+ Single signal reception (not Double-Sideband)
+ Crystal local oscillator, or option for DDS input
+ Easy to build: no complicated adjustments, no test equipment needed
+ Low cost, in the range $15-$30
+ Output direct to sound card input, will work with Argo etc
By "high performance", I mean that this receiver has a strong front end with an IP3 of around +30dBm, which will outperform the vast majority of commercial ham equipment, let alone homebuilt.
I hope to have this ready in a few weeks. So if you can wait, it might be worth waiting for ;-)
72/3 Hans G0UPL

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