To receive digital TV signals from all stations, it is important that your antenna be able to receive both VHF channels (channels 2-13) and UHF channels (channels 14- 51). Some antennas only provide good reception of VHF or UHF channels, but not both.
Greeting Card Envelope Size: 5.25 x 7.25 Note Card Envelope Size: 4.375 x 5.75. When creating your design file, make the page size equal to the size of the envelope. The text for your return address should not be closer than 5/16 or .3125 from the edge of the envelope. U.S. Mail Layout Guides. Greeting Card Envelope Note Card Envelope.
Width restrictions for First-Class envelopes allow up to 0.25 inch, but cannot be less than 0.007 inch thick. Large envelopes shipping First-Class must also be rectangular in shape, and they must not exceed 15 inches in length, 12 inches in height and 0.75 inch in thickness. The maximum weight for First-Class large envelopes is 13 ounces.