10 Mhz Reference Oscillator

[Roy Morris-6]

Presently it seems that the Trimble Thunderbolt is the only reasonably priced reference oscillator available.  When ordering one of these you are taking a chance as they are refurbished and shipped from China.  Some of these units are better than others depending on serial number.  Again, you are taking a chance with what is shipped to you.
Since the K3EXREF is being offered, a logical next step would be to produce an external reference oscillator.   I hope Elecraft is developing one.  Is this wishful thinking?  Roy Morris  W4WFB  
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[George Dubovsky]

Wishful thinking? Yeah, probably, for the same reason Elecraft doesn't want
to get into the power supply business. There is a HUGE amount of
"closely-held magic" in both the precision oscillator and in the GPS
disciplined-oscillator business. Elecraft would have to devote Engineering
resources to develop a product that others already have on the market with
volume production, but aimed at a niche market with a predisposition to
low-end pricing. The percentage of hams that actually NEED a precision
reference oscillator in their radio (for other than bragging rights) is a
small number, indeed.

You can buy 3 or 4 used Thunderbolts today for the cost of a new one - and
likely 3 out of the 4 will work perfectly for this application. Throw away
the bad one, keep a good one, and advertise the other two on the Elecraft
reflector ;-)

73,

geo - n4ua

On Thu, Apr 14, 2011 at 11:30 AM, Roy Morris <[hidden email]> wrote:

> Presently it seems that the Trimble Thunderbolt is the only reasonably
> priced reference oscillator available.  When ordering one of these you are
> taking a chance as they are refurbished and shipped from China.  Some of
> these units are better than others depending on serial number.  Again, you
> are taking a chance with what is shipped to you.
> Since the K3EXREF is being offered, a logical next step would be to produce
> an external reference oscillator.   I hope Elecraft is developing one.  Is
> this wishful thinking?  Roy Morris  W4WFB
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> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

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[Edward R Cole]

Currently there are 34 listings on e-bay for Oven Controlled Xtal
Oscillators ranging from $14.99 to $359.  But the majority of them
run about $45.  I found this with a search for OCXO 10 MHz.

This where I bought my OCXO ($39.95).  +/- 5xE-12  (.000005ppm)

Most run on 12vdc and output +10 dBm (10mw), perfect to supply the
K3EXREF.  Some require 24v.  Many of the e-bay suppliers are free shipping.

73, Ed - KL7UW

------------------------------

Message: 23
Date: Thu, 14 Apr 2011 11:30:58 -0400
From: "Roy Morris" <[hidden email]>
Subject: [Elecraft] 10 Mhz Reference Oscillator
To: <[hidden email]>
Message-ID: <52A0E5F859204408A4B036B8C7D2F51B@W4WFB>
Content-Type: text/plain;       charset="iso-8859-1"

Presently it seems that the Trimble Thunderbolt is the only
reasonably priced reference oscillator available.  When ordering one
of these you are taking a chance as they are refurbished and shipped
from China.  Some of these units are better than others depending on
serial number.  Again, you are taking a chance with what is shipped to you.
Since the K3EXREF is being offered, a logical next step would be to
produce an external reference oscillator.   I hope Elecraft is
developing one.  Is this wishful thinking?  Roy Morris  W4WFB




73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter?
DUBUS Magazine USA Rep [hidden email]
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