Re: Topband: BOG pre amp info ?

On Tue, Nov 21, 2017 at 6:14 PM, Mike Waters wrote: > Something quite similar to the W7IUV is what I've used for years. See > www.w0btu.com/W0BTU-broadband-preamps.html > > BTW, I just removed his IMD improvement mod yesterday, hoping to see if > the lower noise figure helped

Re: Topband: BOG pre amp info ?

Per Larrys comment, to the best of my knowledge the most current W7IUV design is captured in his Revision 5 document, and the schematic within this document that's the most current design is identified as follows: Revised 13Sep09. Here is a link to Revision 5 document:

Re: Topband: BOG pre amp info ?

Larry, W7IUV, made some changes to the design over the years. It's important to find the latest recommended component valves for optimum preamp performance. GL - Steve WB6RSE _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: BOG pre amp info ?

I agree with Jim Murray that the W7IUV would be a good preamp to try with your BOG. I know of at least one online company that sells the parts and circuit board for the W7IUV preamp and here is their URL http://www.mtmscientific.com/preamp.html I built a couple of the W7IUV preamps, and made my

Re: Topband: Lowband Preamp

The W7IUV  lowband preamp is easy to construct and has worked for me.  Quite a bit of info on the net.Jim/k2hn E.P To:Topband ListNov 21 at 4:23 PMhello i am still looking for a pre amp for my BOG antenna 61 meter long is any one can recommend something that do work

Topband: BOG pre amp info ?

hello i am still looking for a pre amp for my BOG antenna 61 meter long is any one can recommend something that do work nice with the BOG thank you kind 73 elan g0uut is any one can tell me if i lift the bog above ground what benefit i will get  if so how high from the ground ? _

Re: Topband: Operation from VU on topband

Great News! Despite of having 200+ worked I never ever heard a VU on topband. >Вторник, 21 ноября 2017, 17:55 UTC от Tree : > >Got copied on this information. Hopefully they will have some success. > >Hi All, >I am writing to to let you all know that myself and VU3NXI are going

Topband: Operation from VU on topband

Got copied on this information. Hopefully they will have some success. Hi All, I am writing to to let you all know that myself and VU3NXI are going to conduct low band experiments near a river delta from 1st Dec 12 UTC to 3rd 2 UTC. This is a portable setup, so we will be barefoot (we may