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VA7LNX December 15th 03 07:47 AM

RF Crystals
 
Does anyone know how common 10.7MHz oscillator crystals are and where I can
get them, preferable in Canada.

The reason, I've decided to build a 21MHz xcvr and the 10.7MHz crystal, when
multiplied by 2 is at 21.4MHz which is at the top end of that band. The
10.7MHz crystal will be running the LO (obviously).

TIA

--
Donovan Hill
VA7LNX (Basic, Advanced)

Gregg December 15th 03 10:33 AM

West Crystal, Kelowna, BC :-)

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca

Gregg December 15th 03 10:33 AM

West Crystal, Kelowna, BC :-)

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca

W3JDR December 15th 03 11:03 AM

Donovan,
Out of curiosity, what IF frequency are you planning to use that required a
10.7 MHz crystal?

Joe
W3JDR

"VA7LNX" wrote in message
news:KGdDb.710704$pl3.357358@pd7tw3no...
Does anyone know how common 10.7MHz oscillator crystals are and where I

can
get them, preferable in Canada.

The reason, I've decided to build a 21MHz xcvr and the 10.7MHz crystal,

when
multiplied by 2 is at 21.4MHz which is at the top end of that band. The
10.7MHz crystal will be running the LO (obviously).

TIA

--
Donovan Hill
VA7LNX (Basic, Advanced)




W3JDR December 15th 03 11:03 AM

Donovan,
Out of curiosity, what IF frequency are you planning to use that required a
10.7 MHz crystal?

Joe
W3JDR

"VA7LNX" wrote in message
news:KGdDb.710704$pl3.357358@pd7tw3no...
Does anyone know how common 10.7MHz oscillator crystals are and where I

can
get them, preferable in Canada.

The reason, I've decided to build a 21MHz xcvr and the 10.7MHz crystal,

when
multiplied by 2 is at 21.4MHz which is at the top end of that band. The
10.7MHz crystal will be running the LO (obviously).

TIA

--
Donovan Hill
VA7LNX (Basic, Advanced)




VA7LNX December 15th 03 04:40 PM

W3JDR wrote:

Donovan,
Out of curiosity, what IF frequency are you planning to use that required
a 10.7 MHz crystal?


10.7MHz. (I used to work in commercial 2-way, so that's what I'm used to.)

Joe
W3JDR

"VA7LNX" wrote in message
news:KGdDb.710704$pl3.357358@pd7tw3no...
Does anyone know how common 10.7MHz oscillator crystals are and where I

can
get them, preferable in Canada.

The reason, I've decided to build a 21MHz xcvr and the 10.7MHz crystal,

when
multiplied by 2 is at 21.4MHz which is at the top end of that band. The
10.7MHz crystal will be running the LO (obviously).

TIA

--
Donovan Hill
VA7LNX (Basic, Advanced)


--
Donovan Hill
VA7LNX (Basic, Advanced)

VA7LNX December 15th 03 04:40 PM

W3JDR wrote:

Donovan,
Out of curiosity, what IF frequency are you planning to use that required
a 10.7 MHz crystal?


10.7MHz. (I used to work in commercial 2-way, so that's what I'm used to.)

Joe
W3JDR

"VA7LNX" wrote in message
news:KGdDb.710704$pl3.357358@pd7tw3no...
Does anyone know how common 10.7MHz oscillator crystals are and where I

can
get them, preferable in Canada.

The reason, I've decided to build a 21MHz xcvr and the 10.7MHz crystal,

when
multiplied by 2 is at 21.4MHz which is at the top end of that band. The
10.7MHz crystal will be running the LO (obviously).

TIA

--
Donovan Hill
VA7LNX (Basic, Advanced)


--
Donovan Hill
VA7LNX (Basic, Advanced)

VA7LNX December 15th 03 04:41 PM

Gregg wrote:

West Crystal, Kelowna, BC :-)


Oh! Thanks! I couldn't remember the name of those guys. I used to deal with
them for my xtal needs for commercial 2-way.

--
Donovan Hill
VA7LNX (Basic, Advanced)

VA7LNX December 15th 03 04:41 PM

Gregg wrote:

West Crystal, Kelowna, BC :-)


Oh! Thanks! I couldn't remember the name of those guys. I used to deal with
them for my xtal needs for commercial 2-way.

--
Donovan Hill
VA7LNX (Basic, Advanced)

VA7LNX December 15th 03 04:43 PM

W3JDR wrote:

Donovan,
Out of curiosity, what IF frequency are you planning to use that required
a 10.7 MHz crystal?

Joe
W3JDR

"VA7LNX" wrote in message
news:KGdDb.710704$pl3.357358@pd7tw3no...
Does anyone know how common 10.7MHz oscillator crystals are and where I

can
get them, preferable in Canada.

The reason, I've decided to build a 21MHz xcvr and the 10.7MHz crystal,

when
multiplied by 2 is at 21.4MHz which is at the top end of that band. The
10.7MHz crystal will be running the LO (obviously).

TIA

--
Donovan Hill
VA7LNX (Basic, Advanced)


actually, I've changed my design. I'm going to go with a direct conversion
reciever instead of building a heterodyne reciever this time around. It's a
lot simpler and smaller to build and will be a good refresher for 2-way.
(It's been about 4 years since I touched a radio.)

--
Donovan Hill
VA7LNX (Basic, Advanced)


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