Deni, I would be tempted to wind my own RF Choke. Use a large ferrite core (FT240-61 for instance) and wind as many turns of 20 guage wire on it as you can. Connect it from the vertical to ground and see if it works.
Unless you have some unusual condition where the static noise is creating huge voltages at the antenna input, it is not likely to damage the receiver - the annoyance of listening to it is the baggest problem. This is noise pickup from static discharges at the antenna rather than a direct discharge of static into the receiver. The diodes in the T/R switch will offer some protection for the K2 receiver. 73, Don W3FPR > -----Original Message----- > > I have recently been plagued by rain static on a new vertical antenna, > this is a 42 foot vertical fed at the base through an SG230 auto tuner, > and used on all bands. It seems I need a static bleed of some sort, a > choke or resistor. What is the best component to use in an outdoor > environment? > My junk box RF chokes look rather puny for this application, the typical > small 2.5mH RF choke. > Would a physically large, say 1 Meg resistor be more suitable ? > I thought the auto ATU would in itself provide a static bleed path, > but apparently not. > Is the K2 prone to front end damage due to this static charge? I do not > have the back to back diodes fitted (to prevent huge signal overload) > > Any thoughts, how have you solved this? > > 73, Deni > > F5VJC > -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.15.15/580 - Release Date: 12/8/2006 12:53 PM _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
