IRTS VHF/UHF Field Day Rules

The IRTS General Contest Rules will apply, except as noted below.


Date and Time

1.1 From 14:00 UTC Saturday to 14:00 UTC Sunday on the first full weekend in July.



2.1 Open Section:
  50 MHz (6m), 70 MHz (4m), 144 MHz (2m), 432 MHz (70cm) and 1296 MHz (23cm).    CW/SSB/FM.
2.2 Restricted Sections:
  Separate contests for each of the following bands:
50 MHz (6m), 70 MHz (4m), 144 MHz (2m), 432 MHz (70cm) and 1296 MHz (23cm).    CW/SSB/FM.
  A station may enter the contest on up to three bands.  (Note: each band will be scored separately)


Eligible Entrants

3.1 Any of the following operating in EI or GI:
  an individual IRTS member, or
  a group of IRTS members, or
  a club using the club’s call sign or a contest call sign held by the club – provided the club is a paid-up IRTS affiliate and at least one of the operators is an IRTS member
3.2 This is a Field Day contest, so all stations entering must be operated portable on a site in accordance with the provisions of Section 7 below.



4.1 RS(T) plus serial number, starting at 001, followed by 6 character (e.g. IO63WG) Maidenhead locator.



5.1 All completed contacts: 1 point per km.
5.2 A bonus of 1000 points for completing 30 contacts on 432 MHz (70 cms), also a bonus of 1000 points for completing 5 contacts on 1296 MHz (23 cms).



In addition to the requirements of the General Rules, the following also apply:

6.1 Separate logs for each band are required.
6.2 In addition to the full exchange required by the contest rules (sent and received), logs must show for each QSO the points claimed under Rule 5.1 & 5.2


Site & Power Supply

7.1 Buildings or man-made structures, other than those brought to, or constructed on, the site within 24 hours before the start of the contest for use during the contest, may not be used as antenna support points.
7.2 Additional standby equipment is allowed on site, but it must not be connected to any power source when the main equipment is in use.
7.3 The station must operate from the same site for the duration of the contest.
7.4 The station must not be sited in any permanent or semi-permanent building.
7.5 The station must not use the public mains supply.
7.6 Power for all equipment may only be derived from a portable generator, or from solar cells, accumulators or batteries.  Fixed generators are not permitted.  Float charging, if any, must be from a portable generator.
7.7 No equipment or antennas may be installed or erected on the site prior to 24 hours before the start of the contest.  This does not apply to storage of equipment.


Operating Procedures

8.1 The use of the DX Cluster or other spotting networks to obtain call sign and frequency information of potential new contacts is permitted.  Only facilities that are demonstrably part of a more general system, and in common use by contesters in different locations, may be used.  These facilities may not be used for posting messages or arranging skeds, nor is self-spotting or asking to be spotted permitted.



(See Rule 6.2 / General Rules regarding the minimum number of QSOs for award eligibility)
9.1 Open Section:
  •  The Thomond Trophy is awarded to the station with the highest checked score in the Open section.
9.2 Restricted Sections:
  •  50 MHz SDR Trophy
  •  70 MHz Oriel Trophy
  •  144 MHz Shandon Trophy
  •  432 MHz Slievenamon Shield
  •  1296 MHz Dermot Cowley EI2AK Memorial Cup
Contest Calendar and Rules page

Updated: 10 August 2018