It’s been a while since I’ve done a January VHF contest from a mountaintop so I decided to give it a try from Mount Herman this year. The ARRL recently changed the contest rules to allow the use of the national 2m fm calling frequency for contests. See Coming Soon: 146.52 MHz in ARRL VHF Contests. I wanted to see how this change would play out in practice when doing a combination VHF Contest plus SOTA activation. In previous attempts, I had to vector the SOTA activity to another 2m fm frequency for it to be a legal contact for the contest. The SOTA + Contest operation is attractive because it has all the elements of a fun SOTA hike coupled with the increased activity of a VHF contest. The contest brings out the weak-signal folks with very capable stations, increasing the probability of making some good DX contacts.
Joyce KØJJW and I hit the trail at 10:30 AM local with the goal of being at the summit around noon (1900 UTC) for the start of the ARRL contest. The trail was icy, but manageable with the gripping devices on our boots. The weather was chilly but not bad for January. At the summit, I configured my FT-60 handheld radio for 146.52 MHz using a 2m half-wave vertical. My first call netted a QSO with Tim, KAØMWA in Castle Rock. I worked a few other stations on 2m fm and then set up the 2m ssb station (FT-817 plus Arrow II antenna). On 144.200 MHz SSB, I contacted two Wyoming stations in grid DN71, about 140 miles away. I also gave a call on 446.0 MHz fm and worked W3DHJ and KE0HBW mobile.
Freq Mode UTC Call Grid 146.52 FM 1900 KA0MWA DM79 146.52 FM 1902 N0AXK DM79 146.52 FM 1905 N0LP DM79 146.52 FM 1905 K0GPA DM79 146.52 FM 1905 WG0AT DM79 146.52 FM 1920 N0ISB DM78 146.52 FM 1923 N0LEA DN70 144.2 SSB 1932 WY7KY DN71 144.2 SSB 1935 K0ALE DM79 144.2 SSB 1938 AB0YM/R DM79 144.2 SSB 1939 KG0RP DN70 144.2 SSB 1940 WA7KYM DN71 144.2 SSB 1942 KC4YLV DM79 446.0 FM 1948 W3DHJ DM78 144.2 SSB 1949 WE7L DM79 144.2 SSB 1951 N0SP DM79 446.0 FM 2000 KE0HBW DM79
The wind was strong at the summit and kept blowing everything around, making it difficult to operate the radio and manage the antennas. After an hour of operating, I decided to QRT and head on down. I know I missed a bunch of potential contacts, especially having not gotten on 70 cm and 6m ssb.
Except for the short operating time, the operation played out as expected. I was able to work the SOTA folks and 2m fm enthusiasts on 146.52 MHz. I made it a point to not hog the calling frequency, as there are quite a few folks that monitor there. Switching over to 2m ssb, I worked the contest crowd, typically with more capable vhf stations. My score is a whopping 114 points, in the single-op portable category.
Thanks to everyone that got on the air to play radio that day!
73, Bob KØNR
You list 146.52 as a calling frequency. In fact, the calling frequency on 2 meters has traditionally been 144.200. 146.52 has been listed for decades as the “national simplex frequency”, in tables that listed simplex calling frequencies on other bands. Some have written lists now listing it as a calling frequency, but traditionally it was not. (Of course, my experience only goes back about 35 years on the band.)
One reference that lists it as a simplex frequency is http://www.k0nr.com/rwitte/2m_frequencies.html – so your own advice there is more correct.
Alan WA6AZP,
144.200 MHz is the SSB (and CW) calling frequency. Of course, it would be inappropriate to use that for FM. 146.52 MHz is listed as “National Simplex Calling Frequency” by the ARRL band plan (in the FM subband). (See http://www.arrl.org/band-plan )
I find that name to be a bit cumbersome, so sometimes I refer to it as the “calling frequency”, sometimes “national simplex frequency.”
73, Bob K0NR