As part of my 2016 Japan trip I travelled to Shizuoka, 180km and about 3 hours drive south of Tokyo. I activated Udoyama JA/SO-120 for the first time with help from my friends Yoshi JG1VOZ and Hiro JA2LXT. This summlt is more accessible to Shizuoka city than Takanesan JA/SO-099 previously considered. Near JA/SO-120 there is a peak and lookout with a TV tower called Nihondaira Prefectural Natural Park and we went there first only to find ourselves 300m away from the real peak. I dare say it would not have been in the Activation Zone either. One must continue on the Shimizu Nihondaira Parkway to (34.9749, 138.4695) and then drive up a rough track 300m and then walk up a steep muddy track 200m to the summit with some bush bashing. The summit is marked with a tag saying 307m and is at (34.973099, 138.4697), locator PM94FX.
The summit is overgrown with lots of trees. I used a linked ground plane and threw the end of the antenna over a tree. On 20m I made four VK/ZL SSB contacts and three VK on CW using the callsign JR2YFM/2. On 40m CW I made four local contacts. Ended up with more contacts than at Shiroyama JA/KN-022 in less time. I was able to stay on 3 Watts throughout the one hour activation. One contact was a S2S with Takeshi JS1UEH at JA/IB-006 on 40m – my first for JA. This was also a first activation of Udoyama JA/SO-120.
Thank you for all the contacts and for those that chased. One discovery via SOTAwatch was that 7032 is used for RTTY in Japan. When 40m is open to JA from VK it may be better to stay below 7032.
There is a short video from this activation here.