AM - Ancient Modulation - Amplitude Modulation

CONTENTS
AM Activities in Japan
AM Links

AM Activities (in Japan)

21MHz [15m]

Freq. Alloc.: 21.150-21.450MHz

21.350-21.450: ?
21.390-21.450: 15m AM Project

28MHz [10m]

Freq. Alloc.: 28.200-29.000MHz & 29.000-29.300MHz (overseas QSO only)

28.305 and lower (10kHz step): 28.305AM group
28.600-28.850: AM contest
28.900-29.000: ?

50MHz [6m]

Freq. Alloc.: 50.10-51.00MHz, 51.00-52.00MHz (overseas QSO only), 52.50-52.90MHz & 52.90-54.00MHz

50.500-50.700 : (or 50.400-50.900) High Activities
50.500-50.600 : FCZ Lab. QRP Transmitter Kit (FCZ #237 300mW)
50.500-50.700?: MIZUHO QRP Transceiver AM-6X (Pico 6AM) (250mW or 500mW?)
50.550+/- : Roll Call in JA1, 21:30-22:30JST on Sundays
50.550+/- : Roll Call in JA3, 21:00-23:20JST on Fridays
50.550+/- : Roll Call in JA9, 21:00JST on the 2nd Saturdays every month.
50.600+/- : Roll Call in JA2, 21:00(-22:00)JST on Saturdays
50.620 : FCZ Lab. QRP Transmitter Kit (FCZ #009 10mW)
50.620 : FCZ Lab. QRP Transceiver Kit (FCZ #067 10mW)

144MHz [2m]

144.47 : Roll Call in JA1, 22:00JST on Saturdays

DX AM Activities

U.S.A.

160m: 1.885, 1.945, 1.995 (1.880-1.950)
80/75m: 3.837, 3.885, 3.885 (AM calling frequency) (3.870-3.980)
40m: 7.160, 7.290 (AM calling frequency), 7.295
20m: 14.286 (AM calling frequency)
17m: 18.150
15m: above 21.400 (21.245)
12m: 24.985
10m: 29.000-29.200 (29.000-29.100)

See: ARRL Band Plans, AM International (WA4KCY, KG2IC, W3AM) and THE AM PRESS/EXCHANGE Issue #98

Australia

See: VK3YE's site

U.K.

AM "centres of activity" frequencies:
29.05MHz 50.57MHz (50.4MHz USA) 70.26MHz 144.57MHz 432.57MHz (VHFam Yahoo Group)

See: VHFam Yahoo Group

AM Links

Contents written in Japanese

6m AM: JF1OZL JF1DHM JF2QKA JF3MWQ JR8DAG FT-690mkII (AM Mod. by JA1VZV) 6m AM Roll Calls

10m AM (28.305 Group): 10mAM.jp BBS

15m AM: JR8DAG (15m AM Project)

AM Links: JA8JPO

AM Freq: JR8DAG

Contents written in English

AM International The AM Window VK3YE AM Fone G3XBM

VHFam Yahoo Group

ARRLWeb: Amplitude Modulation - QST Articles in PDF, Biography, and Web Links.