[Elecraft] Elecraft transveters and freq. counter/signal generator

Johnny jcpsiu at hotmail.com
Tue Jul 5 21:39:24 EDT 2005


Hi Matt,

There is always some tolerence in frequency in the amateur radio world.  A 
modern transceiver such as ICOM IC756pro3 equipped with TCXO could be a very 
good alternative frequency source.  You may consider bringing your 
transverter to hams who own these kind of rigs for calibration.  Clearly, if 
you can find a IC7800, then it should be better.  Unless you are keen on 
testing your equipments, investing further in laboratory grade signal 
generator seems too dear.

73

Johnny Siu VR2XMC
----- Original Message ----- 
From: "Matt Osborn" <kc0ukk at msosborn.com>
To: <elecraft at mailman.qth.net>
Sent: Wednesday, July 06, 2005 9:24 AM
Subject: [Elecraft] Elecraft transveters and freq. counter/signal generator


According to the transverter manual, I will need a 50mhz signal
generator or a frequency counter to successfully align the
transverter.

I've done a lot searching for signal generators and have found that
those capable of 50mhz are very expensive, around $1500 dollars
minimum.

I found a B&K frequency counter (Model 1856D) for around $430.00 that
will measure up to 3ghz.  I suspect that B&K doesn't have the
tolerances of the big boys, hence their lower prices.  B&K also has a
model that will measure up to 175mhz for about $100.00 less.  The 175
would be enough for the transverter, but in for a penny, in for a
pound comes to mind.  Why spend $350.00 this month and then $430.00
next month?

Will the 1856D work for aligning the transverter?  My question
revolves around which of the two instruments (signal generator or
freq. counter) will accomplish the task the best.

Better yet, anybody know of any better alternatives?  I keep running
into the chicken and egg problem.  If I build it myself, I can't
calibrate it. If I buy the tools to calibrate it, then I don't need to
build  it.

They say a smart man learns from his mistakes, but a wise man learns
from the mistakes of others. Please help me be a wise man.

All advice is most welcome!


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