thumper_77375 said:
I read where we touch on the subject about that houston has outgrown there AM radio station signal patterns and really need tower work, yes we need a good signal even for our northern 'burbs to share in that too.
A few changes have been made over the past few decades, but overall the AM nighttime coverage is still pretty dismal. And it's going to get worse in light of the continuing urban sprawl, unless something drastic happens, like a reduction in the number of stations that use the AM band or relaxed FCC rules. In other words, don't expect anything to change. Patterns that were once adequate now struggle to cover 25% of the Houston area.
A number of stations that have either a reasonable amount of power or low dial position have patterns that don't favor the northside of the metro area. KILT 610 has 5000 watts from I45 near Greens Road, but at night their pattern is tucked in along the northern side; KTRH 740, with their 50,000 watts from the far northeast packs the equivalent of more than 200,000 watts toward downtown still lacks a punch due west (toward the far north side of town); 5000-watt KBME 790 has a complicated pattern from a site in northwest Houston that favors downtown and is full of gaps (including due north) and KPRC 950 runs 5000 watts but is mainly beamed southwest from a close-in site off northeast Loop 610, and despite its 5000 watts KXYZ 1320 has a pattern that is more of an east-west orientation from its Pasadena site.
Other Houston area stations are low-powered, have highly directional patterns don't favor the northside, or have poor ground conductivity. KSEV 700's towers are north of Tomball but their coverage of the northside is poor because their pattern is cropped toward the northeast to protect dominant WLW in Cincinnati. (And don't go by the coverage map on Radio-Locator; it's nowhere near that good.) KEYH 850 runs 185 watts in a narrow easterly lobe, KRTX 980 and KLAT 1010 have relatively low power and their patters favor the westside. KNTH 1070 uses a complex 9-tower array off Kuykendahl near 1960 that slams most of their 5000 watt signal parallel to the Gulf Freeway, but produces a sharp null toward The Woodlands. KGOL 1180 Humble has awful ground conductivity at its site near Porter, low power and a pattern with a huge null toward Houston. (Unlike what Radio-Locator shows, the station barely gets into Humble at night.) With the high noise level on their "graveyard" channel, KQUE 1230 struggles to cover the area within Loop 610. KWWJ 1360 Baytown's night pattern is directed away from Houston; KCOH 1430 is heard well on the south and southeast side of town, but has a severe null to the north (see Mike O's comments), and KLVL 1480's 500 watts doesn't go far from their Pasadena site, considering a somewhat east-west orientation and the high noise level on 1480. KYND 1520's recently authorized night pattern barely covers Cypress with 260 watts and has a sharp null due east toward Spring and The Woodlands. Finally, there's not much far northside coverage for KMIC 1590, which has some of the same problems as nearby KBME 790 (complicated pattern with a lot of nulls, especially to the southwest like Mike O talked about).