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Forum: Help With Reception

5-May-2011, 12:33 AM

Replies: 30

Need Reliable Picture On Ch. 7

Views: 22,997

Posted By GroundUrMast

That solution would add a bit of vertical beam...

That solution would add a bit of vertical beam width adjustment as well. A plus when trying to reject the signal from a tropospheric path. If the signal from the offending source is arriving at an...

Forum: Help With Reception

4-May-2011, 3:55 PM

Replies: 30

Need Reliable Picture On Ch. 7

Views: 22,997

Posted By GroundUrMast

Yes, that's a problem. One option is to use 3/2...

Yes, that's a problem. One option is to use 3/2 wave length on the vector toward KOAM which would make the parallel boom spacing 93 3/8". (Do I hear an 'OUCH'?)

Forum: Help With Reception

4-May-2011, 6:52 AM

Replies: 30

Need Reliable Picture On Ch. 7

Views: 22,997

Posted By GroundUrMast

When I crunch the numbers, I come up with 31 1/8"...

When I crunch the numbers, I come up with 31 1/8" boom to parallel boom to null KOAM. Logarithmic center frequency of CH-7 = 176.975 MHz so 1/2 wave length = 33.34618". Relative angle of KOAM vs...

Forum: Help With Reception

2-May-2011, 6:48 PM

Replies: 30

Need Reliable Picture On Ch. 7

Views: 22,997

Posted By GroundUrMast

http://www.wade-antenna.com/Contact2.htm You...

http://www.wade-antenna.com/Contact2.htm You will need to contact Wade re. pricing and availability.

IMO Winegard has a slight edge in build quality vs. the Antennacraft, they are both good...

Forum: Help With Reception

2-May-2011, 4:59 PM

Replies: 30

Need Reliable Picture On Ch. 7

Views: 22,997

Posted By GroundUrMast

Winegard and Wade/Taco offer polar plots with the...

Winegard and Wade/Taco offer polar plots with the other technical information and specifications for their antenna products. Something I wish the other manufactures would do as well. Sadly...

Forum: Help With Reception

1-May-2011, 7:41 PM

Replies: 30

Need Reliable Picture On Ch. 7

Views: 22,997

Posted By GroundUrMast

Are you inclined to fabricate a mount yourself?...

Are you inclined to fabricate a mount yourself? Product such as Unistrut and their competitors may be a practical option. http://en.wikipedia.org/wiki/Strut_channel Big box hardware / home...

Forum: Help With Reception

1-May-2011, 5:17 PM

Replies: 30

Need Reliable Picture On Ch. 7

Views: 22,997

Posted By GroundUrMast

To clarify... the typical performance of a 2-way...

To clarify... the typical performance of a 2-way splitter is 3.5 dB loss. The theoretical gain from stacking two identical antennas will be 3 dB The net gain will be -0.5 dB. If the forward beam...

Forum: Help With Reception

1-May-2011, 4:40 PM

Replies: 30

Need Reliable Picture On Ch. 7

Views: 22,997

Posted By GroundUrMast

Thinking out loud... Are the YA1713's...

Thinking out loud...

Are the YA1713's stacked one on top of the other? (Or side by side?)

KOAM and KHQA are both strong enough co-channel interference sources to present a problem. Side by...

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