端馈天线和JPC12天线配合FT710该如何选择？平时野外架台，地方不固定，从架设容易和通联成功率来说，这2个天线该如何选择？刚通过B证考试，现在想入710，准备前期工作了！

ft8的话，gp天线就行了，dx效果也好

刚入门可以从GP天线开始还有带710野架，别忘了考虑重量的问题，最好开车+露营小推车，[不然……](https://forum.hamcq.cn/d/6453/12)

全都要。jpc12的话适合空地，但是一次一个波段，只能菜市场喊喊。端馈你还得找两颗相距20-25米左右的大树才行，但是端馈多波段，适合打比赛。

GP是真的方便，就往地上一插

@"BG7NOD"#p75538 GP调整波段具体如何调整长度的？在每个常用的频率上，应该是伸长还是缩短？

我觉得得从架台时间和地点来说 1，如果玩得久，单次玩的时间长，乃至有时间玩40米的话，端馈是不错的选择但端馈要求25米及以上的开阔场地，这对您提到的“地方不固定”来说很难办 2，如果快打快撤，那GP也足够。5.6拉杆的话，从20米开始一点点缩振子长度换波段。随便找个地方固定就行，不挑场地，非常的方便。 JPC12似乎是一款加感天线？我个人是不太推荐，效率不如GP，尤其是对于新b来说。另外我也是710小拖车野架派，天线电台电池加起来120斤往上的那种🤕，以后找时间开贴吐槽一下

端馈对周围环境还是有一定限制，但是如果刚好居住环境有条件，端馈拉好就不用动了，可以一直用，那就很方便了。

@"BG5EYK"#p75540 5.2米GP在14M频点是自然谐振，天线越长频段的频率就越高。

只考虑野外架台用，就5.2米拉杆GP吧，加个底座，架设最块投资最少的方案。 JPC12的优点多了40米/30米段，野外一般都白天吧，用不上；5.2米拉杆的20米段效果比JPC12还要好点；端馈是哪种？就默认是现在卖的比较多的那个4波段二十米长阵子的吧，优点也只有不用调整，缺点是可用频段少，假设麻烦。野外水平假设高度一般都不会太高，效果也不会比拉杆GP好。

为啥不考虑正V天线，效率高，也方便同时使用多波段。

What are the considerations when choosing between using an end-fed antenna and a JPC12 antenna with the FT710?

BG5EYK

When choosing between the end-fed antenna and the JPC12 antenna, along with the FT710, how should I make a decision? Considering that I typically set up antennas in the field where the location is not fixed, and from the perspective of ease of setup and successful communication, which of these two antennas should I choose? I have just passed my B license exam and am now considering purchasing an FT710.

BI1SPD

Regarding FT8, a GP antenna is sufficient, and it also provides good DX performance.

BG4IJK

If you are just starting out, you can begin with GP antennas.

Also, consider those with a 710 hitch; don't forget to think about weight, and it would be best to have a car plus a small camping trailer.Otherwise...

BD4UJA

Everything. If you're using the JPC12, it's best for open areas, but only one at a time, and you can only use it in a market setting. To use the directional antenna, you also need two trees that are about 20-25 meters apart, but if you use multiple bands, it's suitable for competitions.

BG7NOD

GP is definitely convenient; just place it on the ground.

BG5EYK

BG7NOD How to adjust the GP bandwidth? Should it be extended or shortened on each of the commonly used frequencies?

BG7NOD

BG5EYK 5.2-meter GP at 14 MHz exhibits natural resonance; as the antenna length increases, the frequency in the higher band also increases.

BH6QCE

I think it's important to consider both the timing and location of the installation.
1. If you plan to play for a long time, with extended sessions, or even have the opportunity to play up to 40 meters, then a "feed" system is a good option.
However, End-Feed requires a clear area of at least 25 meters, which would be difficult to achieve given your mention of "unfixed location."
2. If you're using a fast-on, fast-off technique, then the GP should be sufficient. If you're working with a 5.6 MHz signal, start with a small oscillator length and gradually increase it to change the bandwidth.
You can just find a convenient place to park; it doesn't matter where you choose.
The JPC12 appears to be a gain-enhanced antenna. Personally, I don't recommend it, as its performance is not as good as GP, especially for the new 'b' models.

Additionally, I use a 710 small trailer with a winch and antenna radio battery, which weighs more than 120 pounds.🤕Later, I'll find some time to start a thread and vent about it.

BG7NOD

While directional antennas have certain limitations regarding their surroundings, if the living environment is suitable, a directional antenna can be set up and used without needing to be moved. This would be very convenient.

BI1KPO

If we only consider using it for outdoor poles, then a 5.2-meter puller with a base is the most cost-effective solution.
The JPC12 has advantages in the 40-meter and 30-meter sections, which are typically used during daylight hours outdoors; the 20-meter section with a 5.2-meter pull rod performs slightly better than the JPC12.
What kind of antenna is it? Assuming it's the most common type, which is the 4-band, 20-meter long antenna that's currently popular, its advantages are that you don't need to adjust it. The disadvantage is that it has fewer usable frequency bands, and it's also more complicated to use. In outdoor settings, assuming the height won't be too high, the performance won't be better than a telescoping GP antenna.

BI7ALG

Why not consider using a positive-V antenna? It's more efficient and also allows for simultaneous use of multiple frequency bands.

BA7NNC-JOE

For the VHF antenna, it's better to use a vertical antenna. This will provide higher efficiency and reduce ground noise. During the day, a 40-meter band won't experience much propagation. If you prefer using the VHF antenna at night, then a directional antenna is still the best option. 🤪

I'm also a JPC, but specifically a JPC-7. With it, I can easily enjoy operating on three different frequency bands.

CQ-BG8LTU

The JPC12 antenna is essentially the same as a GP antenna, and it's not cheap. Adding even a simple lamp stand would make it cost more than a proper vertical antenna.
If there's enough space to install a feed-point antenna, you could start with one first.

If you only want portability, you can buy a "GP base" from a place like AliExpress or eBay, and then add a pull-out handle. You should be able to get a GP antenna for under $100.
Furthermore, the retractable handle for the portable V-series can also be used after upgrades (since the retractable handles of the portable V-series are consumable items).😭）。

BG6UA

K8DX – I find this to be the most convenient option.

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