Much difference between after WW II horizontal rhombics ? 7 dB ?,
and
Ampegon 4 x 4 dipols of 1990ties, 19 to 21 dB3265 0000 2400 3-5,9-11 BCQ 50 245 805 11021 270322 D Eng USA BCQ FCC
5130 0000 2400 3-5,9-11 BCQ 50 245 805 11021 270322 T Eng USA BCQ FCC
6160 0000 2400 3-5,9-11 BCQ 50 245 805 11021 270322 D Eng USA BCQ FCC
7490 1900 0900 3-5,9-11 BCQ 50 245 805 11021 270322 D Eng USA BCQ FCC
9330 0000 0100 12,13,15 BCQ 500 175 216 11021 270322 D Por USA BCQ FCC
9330 0100 0400 10 BCQ 250 270 216 11021 270322 D Eng USA BCQ FCC
9330 0400 0500 37,38 BCQ 500 70 216 11021 270322 D Ara USA BCQ FCC
9330 0500 0900 10 BCQ 250 270 216 11021 270322 D Eng USA BCQ FCC
9330 0900 1000 37 BCQ 500 76 216 11021 270322 D Por USA BCQ FCC
9330 1000 1100 37 BCQ 500 76 216 11021 270322 D Spa USA BCQ FCC
9330 1100 1300 11,12 BCQ 500 180 216 11021 270322 D Spa USA BCQ FCC
9330 1300 1400 10,11 BCQ 250 220 216 11021 270322 D Spa USA BCQ FCC
9330 1400 1600 2,3 BCQ 250 300 216 11021 270322 D Eng USA BCQ FCC
9330 1600 1800 27 BCQ 500 57 216 11021 270322 D Eng USA BCQ FCC
9330 1800 1900 28 BCQ 500 54 216 11021 270322 D Deu USA BCQ FCC
9330 1900 2300 37,38,46 BCQ 500 81 216 11021 270322 D Ara USA BCQ FCC
9330 2300 2400 12,13,15 BCQ 500 175 216 11021 270322 D Por USA BCQ FCChttp://www.itu.int/en/ITU-R/terrestrial/broadcast/HFBC/Documents/RefTables/antenna.txt
It is proposed that HF transmitting antennas be grouped into eleven (11)
types.Type 1 to 4 are Curtain Antennas
with different feeding arrangements and reflector types.
Type 5 covers Tropical Antennas.
Type 6 and Type 7 are Log-periodic Antennas,
horizontal and vertical respectively;
Type 8, Rhombic Antennas;
Type 9, Quadrant Antennas;
Type 10 Cross Dipole Antennas and
Type 11 Vertical Monopoles.Curtain antenna, half-wave dipole array
216 AHR(S)4/4/0.5
multi
centre/end
aperiodic screen
#100-299
Transmitting Antenna Types
2.1 Type 1: Multi band centre/end - fed curtain antenna arrays with
aperiodic screen reflector
Designation: AHR(S) m/n/h, where:
m = number of half-wave dipoles in each horizontal row
n = number of rows spaced half a wavelength apart one above the other
h = height above the ground in wavelengths of the bottom row of dipoles
slew angle and the design frequency are notified separately.
- - -
Horizontal log-periodic
800-849805 LPH18/36.5/32.2/16.7/1.4/13.2/200
Type 6: Horizontal log-periodic antenna
Designation: LPH N / L / h1 / hN / l1 / lN / Z, where
N : number of elements
L : distance between the centres of the shortest and the longest element
(m)
h1 : height of the shortest element (m)
hN : height of the longest element (m)
l1 : half-length of the shortest element (m)
lN : half-length of the longest element (m)
Z : impedance of the antenna internal feeder line ().Log-periodic dipole arrays are tapered linear arrays of dipole elements of
varying lengths that operate over a wide frequency range. Wide band
operation is achieved by different groups of elements radiating at different
frequencies. The spacing between the elements is proportional to their
length and the system is fed using a transmission line. As the frequency
ratio varies, the elements that are at or near resonance, couple energy from
the transmission line. The resulting radiation pattern is directional and
has a broadly constant radiation characteristic over the full operating
frequency range.
----- Original Message -----
From: "Glenn Hauser via Hard-Core-DX" <hard-core-dx@hard-core-dx.com>
Sent: Wednesday, October 13, 2021 5:23 AM
Subject: [HCDX] Glenn Hauser logs October 12-13, 2021
USA 9330, Oct 12 at 0252, WBCQ World's Last Chance is on again,
VG S=9+20/30, Canadian-accented interviewer with someone about
Antarctica; anti-Rothschild, anti-elite. Wondering if some other
far-right political show? Not your usual pontificating. Oh2: Then
country song so wacko it could be taken as a parody on any other
station, like: there was never a man on the moon, it was made-for-tv;
stars and moon are not that far away, all we have is under a dome;
there are no satellites, no matter how upwards dishes are aimed, they
are really picking up terrestrial signals, from this Flat Earth;
partly paraphrased.9330 is now much stronger than its nearest neighbor SW station, 9265
WINB; but way above other WBCQs: 7490v JBA, 6160v TOMBS. 0259 a few
notes of the menacing WLCR theme before cutoff the air. If I happened
to tune in now, I would have concluded it's still AWOL. Cut back on
the air at *0300.7 with legal ID by AW, and then YL WLC ID also as on
WBCQ, more English. Presumably had to break for antenna rotation, but
no difference here before/after signal levels. HFCC shows at 0300 it
goes from 245 to 270 degrees, but also changes antenna designator from
805 to 216, huh? Both as only 250 kW.
Surely it's the exact same
Ampegon rotatable, but HFCC references:
805 LPH18/36.5/32.2/16.7/1.4/13.2/200
216 AHR(S)4/4/0.5
Maybe someone can explain that? From log periodic to rhombic?
HFCC provides no key or explanation to its lengthy antenna reference table
included in the zips with schedules.
(Glenn Hauser, OK, WOR)
This report dispatched at 0323 UT October 13
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