目前天线是5.6米振子，可以谐振7074和14074。频率再高的话，振子变短会影响7兆和14兆的收发。。。。如果7兆和14兆够用的话，我就不折腾了。

用的是啥天线类型？GP？DP？端馈？

[upl-image-preview url=https://storage.hamcq.cn/2024-08-12/1723424699-510750-image.png] 21MHz ft8挺多的，周末一堆信号 10w 加感天线干到匈牙利

这两年是玩高波段的好时机

@"BH7HQT"#p28238 m-130a,应该属于车载gp天线

@"Jason"#p28239 天线振子多长呢

@"BH2VLJ"#p28245 一米多吧，就MA-01，不过呢，能全尺寸就全尺寸

@"BH2VLJ"#p28284 28也多 24不知道

Are there many people who use FT8 on frequencies above 21 MHz? I am considering giving up a specific frequency band for my antenna.

BH2VLJ

Currently, the antenna has a 5.6-meter oscillating arm, which can resonate at 7074 and 14074 frequencies. If the frequency is increased further, shortening the oscillating arm will affect the 7 MHz and 14 MHz transmission and reception.
If 7 and 14 are sufficient, I won't bother with anything else.

BH7HQT

What type of antenna are you using? GP? DP? Feed-horn?

BH2VLJ

BH7HQT m-130a, should belong to a vehicular GP antenna.

Jason

There are a lot of 21 MHz FT8 signals on weekends.

10W gain antenna delivered to Hungary

BH2VLJ

Jason How long are the antenna oscillators?

BG8AMG

These past few years have been a good time to invest in high-frequency trading.

BH7HQT

BH2VLJ If used in a vehicle, it's recommended to focus on the 7 MHz and 14 MHz bands, with the remaining frequencies handled by other antennas.
Both the 21 MHz and 28 MHz frequencies still have good availability, so if possible, I'd like to acquire them.