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Thanks for the replies
You both make good points. I've tried pointing the antenna direct at the transmit antenna using the 1296f attenuator. Channels that didn't come in without the attenuator still didn't no matter what atten. setting. Some channels that did come in already improved up to about a third of atten. knob rotation. Past that they degraded again.
I disconnected the cable from one of the tuners and used the HDHR Config GUI to run through the channels to look for signal. Signal strength showed about 25% at the lo end and 35% at the upper end. Should I shield them? I might just give it a try anyway. Can't hurt.
I know I'm getting alot of multipath. I have a single fam house and all around me are taller multi fam homes. There are tall trees between me and the transmitter. I know it's there but I can't see it.
I had not considered elevation of the transmitting antenna. CH 4.1 KRON never comes in well regardless of what I do and it's a fairly strong station.
Just to give some background. I've tried all kinds of antennae. MOHU Leaf connected to TV only gets about 10 stations well. Set top ant.(rabbit ears and loop) is worthless. Put the MOHU on the roof, still no good. Tried one of those 3"ant. that come with USB tuner sticks, even worse. Tried using a single UHF loop like the kind that attach to the back of an old TV, nadda.
I've been into electronics all my life. CompSi Degree and have a decent bench in the garage. I'm used to measuring things. On a scope, a meter, a logic probe. I can't see what's in the air and it s*cks
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