Re: Topband: RX antenna ???

2015-08-27 Thread Douglas Ruz (CO8DM)
Thanks Tony, I am using an old Yaesu, FT747...it is only one antenna connector on that radio, so, i have to do a circuit for switching RX and TX antennas and also a preamplifier for the flag antenna...right??? 73Douglas, CO8DM No creo que haya alguna emoción más intensa para un inventor

Re: Topband: RX antenna ???

2015-08-27 Thread Douglas Ruz (CO8DM)
I have 2 more questions: About the resistor: what kind of material???...carbon, right? and what power will disipate the resistor ? The 2nd questions is about the transformer: i have some binocular and toroids but small ones, BN-43-202 and FT50-43...maybe adding few FT50-43 can BUILD some kind

Re: Topband: RX antenna ???

2015-08-27 Thread N2TK, Tony
You are correct. Tony -Original Message- From: Topband [mailto:topband-boun...@contesting.com] On Behalf Of Douglas Ruz (CO8DM) Sent: Thursday, August 27, 2015 10:32 AM To: N2TK, Tony tony@verizon.net Cc: topband@contesting.com Subject: Re: Topband: RX antenna ??? Thanks Tony, I am

Re: Topband: RX antenna ???

2015-08-27 Thread Mike Waters
www.w0btu.com/Beverage_antennas.html#Terminating_Resistors 73, Mike www.w0btu.com On Thu, Aug 27, 2015 at 11:37 AM, Douglas Ruz (CO8DM) co...@frcuba.co.cu wrote: About the resistor: what kind of material???...carbon, right? and what power will disipate the resistor ? _