UBARoyal Belgian Amateur Radio Union

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Photo: Couloir

Bandplanning between 28.000 and 29.700 MHz

28 MHz Band

FREQUENCY
(kHz)
MAX
BANDWIDTH
(Hz)
PREFERRED MODE AND USAGE
28000 - 28070 200 CW, 28055 kHz - QRS Centre of Activity
28060 kHz - QRP Centre of Activity
28070 - 28120 500 Narrow band modes - digimodes
28120 - 28150 500 Narrow band modes - digimodes, automatically controlled data stations (unattended)
28150 - 28190 500 Narrow band modes
28190 - 28199   IBP, regional time shared beacons
28199 - 28201   IBP, worldwide time shared beacons
28201 - 28225   IBP, continuous duty beacons
28225 - 28300 2700 All modes - beacons
28300 - 28320 2700 All modes - digimodes, automatically controlled data stations (unattended)
28320 - 29100 2700 All modes,
28330 kHz - Digital Voice Centre of Activity
28360 kHz - SSB QRP Centre of Activity
28680 kHz - Image Centre of Activity
29110 - 29190
29200 - 29300
6000
6000
All modes - FM simplex (H1 - H9) – 10 kHz channels
All modes - digimodes, automatically controlled data stations (unattended)
29300 - 29510 6000 Satellite-downlink
29510 - 29520   Guard channel
29520 - 29590 6000 All modes - FM repeater input (RH1 – RH8) – 10 kHz channels
29600 6000 All modes - FM calling channel
29610 6000 All modes - FM simplex-repeaters
29620 - 29690 6000 All modes - FM repeater outputs (RH1 – RH8) – 10 kHz channels
29700   Band limit

Member societies should advise operators not to transmit on frequencies between 29.3 and 29.51 MHz to avoid interference to amateur satellite downlinks.

Preferred NBFM operating frequencies on each 10 kHz from 29.210 to 29.290 MHz inclusive should be used. A deviation of ±2.5 kHz being used with 2.5 kHz as maximum modulation frequency.


DEFINITIONS

All modes CW, SSB and those modes listed as Centres of Activity, plus AM (Consideration should be given to adjacent channel users).
 
Image modes Any analogue or digital image modes within the appropriate bandwidth, for example SSTV and FAX.

Narrow band modes All modes using up to 500 Hz bandwidth, including CW, RTTY, PSK etc.

Digimodes Any digital mode used within the appropriate bandwidth, for example RTTY, PSK, MT63 etc.

(*) Lowest dial setting for LSB Voice mode: 1843, 3603 and 7053 kHz.


NOTES

Amplitude modulation (AM) may be used in the telephony sub-bands providing consideration is given to adjacent channel users. (NRRL Davos 05).

CW QSOs are accepted across all bands, except within beacon segments. (Recommendation DV05_C4_Rec_13).

Contest activity shall not take place on the 10, 18 and 24 MHz bands.

Non-contesting radio amateurs are recommended to use the contest-free HF bands (30, 17 and 12m) during the largest international contests. (DV05_C4_Rev_07).

The term “automatically controlled data stations” includes Store and Forward stations.

The frequencies in the bandplan are understood as “transmitted frequencies” (not those of the suppressed carrier!).

Unmanned transmitting stations:

IARU member societies are requested to limit this activity on the HF bands. It is recommended that any unmanned transmitting stations on HF shall only be activated under operator control except for beacons agreed with the IARU Region 1 beacon coordinator, or specially licensed experimental stations.

Sideband Usage Below 10MHz use lower sideband (LSB), above 10 MHz use upper sideband (USB).



IARU REGION 1 HF BAND PLAN – Effective 29th March 2009



HF Managers Handbook