A couple hours ago Larry Lopez (N2CVS) wrote ... "Does Elecraft test the incoming INRAD crystals?"
Elecraft designed and produced a small gadget and provided it to INRAD at no charge. This gadget accepts one filter at a time, and has a cable to connect it to a network analyzer. With this setup, INRAD is able to test their K3 filters in-house, to ensure they meet Elecraft's specifications, (which I suspect includes a maximum center-frequency offset for each bandwidth). Elecraft's post-production processing of 8-pole INRAD filters is likely limited to applying their label and adding the necessary mounting hardware. Note that INRAD includes the necessary mounting hardware with filters that they retail, but not with their K3 filters that they sell in bulk to Elecraft and to unpcbs.com. Gary KI4GGX webmaster http://www.unpcbs.com/ P.S. INRAD offers two bandwidths (1.5 kHz and 500 Hz) which are not available from Elecraft, and unpcbs.com offers a third bandwidth (700 Hz) which is not available from INRAD. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
