Home |
Search |
Today's Posts |
#1
![]() |
|||
|
|||
![]() "?ish" wrote in message oups.com... Hello all, Why does SW radio comes up with noise the moment I dial beyond AM. I have tried tuning with several radios (including Sony 2010) and for some reason noise level seems to increase around that band. I tried with both AC adapter and plain old battery. Any ideas? TIA Most portables switch from a ferrite antenna for MW-LW reception to a whip antenna for SW. The whip antenna is more sensitive to electrical noise. It's also possible you have a local noisemaker which starts up around 2 Mhz. In my case, I have several radios which work with wire antennas only and I don't have any such sharp peaks in the noise. Frank Dresser |
#2
![]() |
|||
|
|||
![]()
In article ,
"Frank Dresser" wrote: "?ish" wrote in message oups.com... Hello all, Why does SW radio comes up with noise the moment I dial beyond AM. I have tried tuning with several radios (including Sony 2010) and for some reason noise level seems to increase around that band. I tried with both AC adapter and plain old battery. Any ideas? TIA Most portables switch from a ferrite antenna for MW-LW reception to a whip antenna for SW. The whip antenna is more sensitive to electrical noise. Snip You got it right there Frank. At least someone is thinking. -- Telamon Ventura, California |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Constant noise around 2 kHz | Shortwave | |||
Constant noise around 2 kHz | Shortwave | |||
constant barrage of FS ads from KF2GG | Boatanchors | |||
Constant bandwidth TRF circuit | Shortwave | |||
DBM and constant R band pass filters. | Homebrew |