Re: [Discuss-gnuradio] Maximum antenna input voltage on LFRX

2010-12-24 Thread Marcus D. Leech
On 12/24/2010 08:02 PM, Nick Smith wrote: > I tried with a 330 ohm and 33 ohm resistor, and the voltage stayed the same > as without. I have no doubt that it is mostly power line and the 1kW AM > station that is within walking distance. :) > > Also, the ground here isn't a very good ground, so th

Re: [Discuss-gnuradio] Maximum antenna input voltage on LFRX

2010-12-24 Thread Nick Smith
I tried with a 330 ohm and 33 ohm resistor, and the voltage stayed the same as without. I have no doubt that it is mostly power line and the 1kW AM station that is within walking distance. :) Also, the ground here isn't a very good ground, so that probably throws measurements off. As for wher

Re: [Discuss-gnuradio] Maximum antenna input voltage on LFRX

2010-12-24 Thread Mark J. Blair
On Dec 24, 2010, at 3:37 PM, Nick Smith wrote: > I've looked through the mailing list archive and found a few messages related > to this, but they referred to signal generators and power in dBm. > In my case, I plan to use it with an antenna and eventually a pre-amp. > However, I've found that b

[Discuss-gnuradio] Maximum antenna input voltage on LFRX

2010-12-24 Thread Nick Smith
I've looked through the mailing list archive and found a few messages related to this, but they referred to signal generators and power in dBm. In my case, I plan to use it with an antenna and eventually a pre-amp. However, I've found that by measuring the voltage from even a 3ft (90cm) antenna u