LF: Re: Broadcast Ground Systems

["Alan Melia" <alan.melia@btinternet.com>]

Hi this is interesting reading, but beware of applyiing it directly to 
amateur LF!. BC antennas are usually monoples and the ground requirement for 
those is somewhat different to an amateur antenna where height is often 
limited and "T" or inverted "L" antennas are used. Always size your ground 
extent by measuring the system, so that you know when to stop wasting copper 
and effort! Radials are only really effective if they are at least 1/8th 
wavelength....that requires a lot of real estate at LF. Also BC engineers 
can often choose their site, amateurs rarely can.
Alan
G3NYK

----- Original Message ----- 
From: "David Weinreich" <David.Weinreich@globalstar.com>
To: <rsgb_lf_group@blacksheep.org>; <600m@yahoogroups.com>
Sent: Thursday, September 12, 2013 12:34 AM
Subject: LF: Broadcast Ground Systems


Dear LF/MFers,

I have a copy of "Radio Broadcast Ground Systems" that was prepared by Smith 
Electronics of Cleveland, Ohio in 1972. The report provides a digest of 
material from Laport's book, the Antenna Engineering Handbook and the famous 
article by Brown, Lewis and Epstein from the IRE Proceedings. I will gladly 
send it to whoever wants it and is willing to pay the postage from 
Cleveland, Ohio. First come first served, referenced to e-mail arrival time.
Best regards,

David Weinreich
WA2VUJ/8