Good answer, Larry! Lots of previous, searchable info by Guy, K2AV and other 160m antenna gurus go into that in more detail.
Bob, a popular preamp —that I also built and use— is the W7IUV single bipolar transistor one. Somebody sells it as a kit. I have a 2K pot and series-parallel 1N914 protection diodes from the input to ground. 73 Mike W0BTU On Sun, Jan 3, 2021, 5:49 PM Larry <[email protected]> wrote: > BOGs are highly ground dependent; At my QTH, they work well, and while > the signal level is significantly lower than the 850' BAG I run toward the > South BOGs show good directionality and selectivity. Variation in soil > moisture content affect performance as does the presence of wet leaves on > top of them. I use the preamp in my transceiver with good results. > > Larry W8ANT > > Date: Sun, 03 Jan 2021 20:01:16 +0000 > From: [email protected] > To: "'[email protected]'" <[email protected]> > Subject: Re: Topband: Topband Digest, Vol 217, Issue 5 > Message-ID: <3a0a36bc92069cabcd8a00cb9159ffc2c29813dd@webmail> > Content-Type: text/plain; charset=UTF-8 > > anyone with experience using a 300' BOG? Suggestions based on your > experience? > > ie are they worth it? > > I tried one before but without a preamp and found it worthless. ( > almost no signals heard) > suggestions on best preamps? With all in good working order, what > benefits do they provide? Comparable to a longer Beverage? > > Tnx > > Bob > _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
