View Single Post
Old 25-Mar-2017, 12:36 AM   #5
rabbit73
Retired A/V Tech
 
Join Date: Aug 2012
Location: S.E. VA
Posts: 2,483
The Lava HD2605 is designed to receive UHF and VHF, but it has only one element for VHF-High, real channels 7-13. It contains a high gain amplifier that tries to compensate for the poor performance of the antenna elements.

If you received virtual channel 4.1, it could be from one of the WYFF translators. The main WYFF transmitter is too weak at your location.

If you can get an antenna or two high enough, you have a chance to receive a few networks. This shows some that are listed on your report:
*W10AL, 10, 4.1, NBC, Movies, NM 41.5 dB, "WYFF 4" 346 deg true/356 magnetic
W02AF, 2, 4,1, NBC, Movies "WYFF 4" 125
W03AK, 3, 4.1, NBC, Movies "WYFF 4" 247
*W08AT, 8, 7.1, CBS, Me-TV, ION, NM 20.2 dB, "WSPA 7" 349/355
**W31DH, 31, 33.1, PBS, NM 7.5 dB, 194/200
W06AJ, NBC, Movies
**W44CX, 44, 21.1, Fox, NM 6.9 dB, "WHNS 21" 193/199
W05AR, NBC
W09AF, CBS
WLOS, 13, 13.1, ABC, MyN, AntennaTV, NM -7.1 dB, 89/95

If you want to make some inexpensive tests, try an MCM 30-2475 or 30-2476 (a little more gain but aim is more critical) VHF antenna aimed at 355 degrees magnetic and add an RCA TVPRAMP1R preamp for:

W10AL, 10, 4.1, NBC, Movies, NM 41.5 dB, "WYFF 4" 346 deg true/356 magnetic
W08AT, 8, 7.1, CBS, Me-TV, ION, NM 20.2 dB, "WSPA 7" 349/355

If that gives you good results, next add an Antennas Direct DB4E UHF antenna aimed at 199 degrees magnetic for:
W31DH, 31, 33.1, PBS, NM 7.5 dB, 194/200
W44CX, 44, 21.1, Fox, NM 6.9 dB, "WHNS 21" 193/199

Connect the VHF antenna to the VHF input of the preamp and connect the UHF antenna to the UHF input of the preamp. Set the combined/separate switch to separate.

It that works, swing the VHF antenna to 95 degrees magnetic as a test to see if you can receive the very weak ABC WLOS.
__________________
If you can not measure it, you can not improve it.
Lord Kelvin, 1883
http://www.megalithia.com/elect/aeri...ttpoorman.html
rabbit73 is offline   Reply With Quote