YAESU FTX-1でアマチュア無線430MHzFMでCQを出したら20分でオーバーヒート

I tried mobile operation on 430MHz FM using a Yaesu FTX-1 field head. I wondered how much fun I could have with a battery-powered 6W transmit power, so I sent out a CQ...and it showed an overheating warning after 20 minutes! 20 minutes is way too short in an air-conditioned car, out of direct sunlight. Once I start sending out a CQ, it's normal for calls to continue for over 30 minutes...so it might not be practical for CQ operation. I thought about buying a fan, but then I realized I can't install both a battery and a fan at the same time. Please take measures to prevent the FTX-1 from overheating so I can enjoy amateur radio operation to the fullest! Yaesu! ▼Momosuke's Land Cruiser channel is here    / @momolandcruiser   ▼Momosuke Links You can also buy Momo Channel merchandise at Momo's Direct Sales Store! https://momosuke.base.shop/ Check out Momosuke information here! Twitter ⇒   / nagaokahr420   Instagram ⇒   / momosuke420   Blog ⇒ https://momosuke.jp/ Come visit Momosuke's campsite, Fujihashi Camping Base! https://fujihashi.info/destination/fu... https://www.nap-camp.com/gifu/15664 Momosuke's main job is web consulting. Please feel free to contact us for consultations. Website creation, social media marketing, graphic design, etc. https://wave-web.net/ We also run a company related to nursing, industrial health, and community-based care. Ogaki City Visiting Nursing Station Health Consultant Office https://hc-office.com/ ▼Related Links Check out FLRM for the latest license-free radio news! http://flrm.jpn.org/ BGM is used from the following two sites. DOVA-SYNDROME http://dova-s.jp/ Amacha Music Studio http://amachamusic.chagasi.com/