[Premium-Rx] Receiver Frequency Display Accuracy & Calibration

[Gary Mitchelson - N3JPU]

What I do without any special freq standards or an accurately calibrated
freq counter/Spectrum Analyzer is to use a PC with a soundcard mode program
such as MixW which has a spectrum scope. I then tune the RX to the highest
WWV I can receive and go between USB and LSB and check on the spectrum scope
that I have the same offset. MixW will display 1HZ resolution. Now this all
relays on the soundcard to be fairly accurate, and the USB and LSB
oscillators to be set the same. But if the USB and LSB tone is the same on
the spectrum display I think you have it close. Then you can calibrate the
display.

Gary Mitchelson
N3JPU Montgomery Co. MD  FM19
http://www.mitchelson.org/ 

-----Original Message-----
From: premium-rx-bounces at ml.skirrow.org
[mailto:premium-rx-bounces at ml.skirrow.org] On Behalf Of Ahmet Gundes
Sent: Sunday, October 03, 2004 19:59
To: Premium-RX
Subject: [Premium-Rx] Receiver Frequency Display Accuracy & Calibration


Hi everyone.

I would like to check the Frequency Display Accuracy of an HF Receiver. Does
anyone have any idea how we can check Receiver Frequency Readout Display
accuracy. What would be a good method, without the use of specialized
equipment, to verify that the 
Receiver freq redout is displaying the actual tuned frequency. Naturally
I'd like to get 1Hz accuracy if possible.  Can WWV, 
WWVH ,... time stations be used in doing this ?

It would be interesting to hear from anyone who tried this before or have a
good idea on how to do it.

Thank you,
Ahmet Gundes