Check the filter very carefully for cold solder joints / loose connections. I had this problem once with a 500Hz filter and a quick resolder with a 25 watt iron fixed it. 73, Marsh, KA5M --Original M
Definitely do not be even a little "demoralized"! Just wait until you're trying to pull a a weak CW signal out of the noise and you push the [NR] button on your OMNI VI Plus and the signal pops up ou
I'm reluctant to jump into the fray, but I guess I just cannot resist.... I cannot think of an overcurrent protective device I've run across in the past 35 years working for a manufacturer of electri
All large motors are not protected by fuses. Some motor circuits are protected by fuses, some are protected by circuit breakers, and some are protected by magnetic trip only devices known by such nam
Frankly I found the posts on the new Yaesu FT-2000 interesting and informative. I was especially interested in the discussion about how the difference in IF frequency between the FT-2000 and ORION re
I used the FSK keying circuit specifically for the OMNI VI Plus shown on http://www.aa5au.com/rttyinterface.html to build a COMM port to radio interface. I used a 2N4402 PNP transistor. As shown, pin
Ed, I'm just getting started on FSK RTTY, and want to understand the basics of the radio to computer interface. How does a signal from TXD (pin 3) of a DB9 serial port connector, through a 1K resisto
Ed, that does help. Thanks for your detailed reply. I modified my computer to radio FSK transmit interface, removing the 2N4402 PNP transistor, and connecting TXD (pin 3) of the DB9 serial connector
CTwin 10.02.008 gets the frequency from my OMNI VI Plus and logs each QSO with the correct frequency, and sends packet spots with the correct frequency, but I can not get it to set the frequency. Has
I understand that replacement blowers for the TITAN 425 are no longer available from Ten-Tec. If my blower dies, is there another blower available that will work? (OK, so I like to worry in advance.)