High Noise Floor On 40 And 80 Meters

As for working dx on 80 75 meters and on 40 meters. I ve got really good performance on 20m and above with an acceptable average noise floor of s2 3 on 20m and even lower on higher bands. How do you directional find with a shortwave portable receiver like.

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Unfortunately i don t have a 2m am rig.

High noise floor on 40 and 80 meters.

On 09 11 2019 17 21 bill alpert wrote. If i use a tall vertical antenna on 160 meters the daytime noise from these towns and other groundwave sources is almost 20 db stronger than noise from my 300 ft high 160 meter dipole. Both towns are about seven miles from my location. A vertical with a decent counterpoise will.

While i did notice a small decrease in the noise floor when shielding the meter. On 80 meters nearly all areas of the world are subject to. While i was checking the powerline noise on 80 meters i also checked 40 meters 7mhz and noted a high noise level on there as well also around s7 as it is on 80 meters. No real hash that i can hear to speak of and i can hear all but the most faintest of stations.

I do have a short wave radio sears from the 80s. 80 meters can be plagued with noise with the rural noise floor set by propagated noise from distant thunderstorms and man made noise sources. Touching the meter with the antenna was abusive noise. I would hear noise on the am radio within a foot above and in front of the meter.

I m seeing and hearing loud noise sometimes at s9 on 40 meters. Help with high noise floor 80m 40m. I also monitored some. Urban and suburban noise floor is often established by local noise and is generally 10 20 db stronger than the typical rural noise floor.

Discussion in antennas feedlines towers rotors started by w8mcc. The noise doesn t sound like hash just general white noise like the squelch is left open on a radio. For example my dominant daytime noise on 160 meters comes from barnesville ga and forsyth ga. Strangely 80 meters as well as 20 10 etc is relatively quiet.

I went back to square one and shut the panel off. Maybe i can dig it out and see if it still works.