LF: Re: RX Frame Aerial for 136kc/s - still experimenting.....

["Johan Bodin" <sm6lkm.jbeab@swipnet.se>]

LA8AK wrote:

> Not sure if it is still a point to ground the center of the tuned loop.
There is no hi-z amplifier on the tuned loop that can suffer from common
mode hum but you still need a low impedance DC path to GND for the
varicap bias, otherwise the ever-present 50Hz hum would wobble the
tuning with disastrous results.

73
Johan SM6LKM