[Penthode]

Lo Band VHF for TV in the US and Canada did have its problems. During the summer months the Lo VHF (54-88 MHz) was plagued by co-channel interference between stations even thousands of miles distant. Even a relatively local channel could be wiped out by a strong co-channel station more than 1000km away.

In June 2009, during the "Nightlight" period of the US analog to digital transition, most of the TV stations across the US had already vacated the Lo VHF band with a few remaining nightlight stations only running transition promo loops. I did some DXing from where I then lived in Carbondale Illinois which is almost exactly in the middle of the Continental US. This is what I received in mid June 2009. I captured video clips of their IDs on my cell phone.

The receiver I used was an unmodified RCA Victor TV model 8T243 made in 1948-49. I used a 50ft mast VHF-UHF antenna with rotator. The direction of the antenna position varied as the ducted signal sometimes curved along its travel:

CKCK Channel 2 Regina Sask. 2000km
CBAT channel 4 Fredericton NB 2000km
WGBH channel 2 Boston MA 1500km
WPBT channel 2 Miami FL 1200km
XEFB channel 2 Nuevo Leon 1400km
KRMA channel 6 Denver CO 1500km
KASA channel 2 Santa Fe NM 1600km
KPHO channel 5 Phoenix AZ 2000km