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-   -   The GND screw on a SW Radio (https://www.radiobanter.com/shortwave/157378-re-gnd-screw-sw-radio.html)

dave December 29th 10 02:40 PM

The GND screw on a SW Radio
 
On 12/28/2010 06:02 PM, wrote:


Thanks for the reply

What about connecting to the same ground rod the house panel connects
to? Or would that introduce AC hum?

Just curious. On a modern radio, (without a coax connector), if I was
to connect a 50ft. (or more) outdoor wire to the rabbit ear using an
alligator clip, would that give better reception?

No You will cause the front end to go non-linear and produce unwanted IMD

bpnjensen December 29th 10 06:18 PM

The GND screw on a SW Radio
 
On Dec 29, 6:40*am, dave wrote:
On 12/28/2010 06:02 PM, wrote:



Thanks for the reply


What about connecting to the same ground rod the house panel connects
to? *Or would that introduce AC hum?


Just curious. *On a modern radio, (without a coax connector), if I was
to connect a 50ft. (or more) outdoor wire to the rabbit ear using an
alligator clip, would that give better reception?


No You will cause the front end to go non-linear and produce unwanted IMD


This can be successful if the lead in wire remains insulated, and you
wrap the *insulated* wire around the whip a few times for an inductive
connection. You can adjust the sensitivity quite nicely this way
depending on how may coil wraps you use.


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