各位大佬，你们认为这两台机器那个更适合比赛和DX

这还用得着发个帖子问吗😄

@"BG7NOD"#p95165 比较纠结因为FTDX10降噪实在太香了........

SUNSDR2DX的滤波器和DX10是一个层次的吗？我直接选择一手DX10，很多人比较肤浅的认为“大频谱=比赛专用”，其实比赛更多的是考验滤波器，毕竟你1000hz之外有个CW强台，滤波器不好的话，很容易VFO或者DuangDuang响。

@"bg7xwf"#p95171 我就是看重DX10的抗干扰，又羡慕SUNSDR的双守和大频谱，所以才发这个帖子的。

@"bg7xwf"#p95171 那不玩cw是不是就可以选sun了

发现了一个有意思的现象：我认识的友台里，有DX10的说SUN电台好，有SUN电台的说DX10好

@"BD4WCL"#p95176 业余无线电是一个围城（

@"PPPPPAN"#p95175 其实我也玩不来CW，我馋DX10是因为他的降噪

@"BD4WCL"#p95179 DX10以及FT-710的拥有者告诉你，确实降噪很不错，DX10是性价比超级高的好电台，710或者DX10，买哪个都不会错的，如果要我个人给建议的话：有野架需求就买FT-710，只做基地台就DX10或者DX101。

各位大佬，其实我对CW的性能不是特别看重，而且dx 10不是要单独再买一个滤波器，CW性能才能达到最佳吗？我主要是看ssb的降噪性能和对弱信号的灵敏度，主要在城市里面，环境比较差😂

FTDX10 and SUNSDR 2DX

BD4WCL

Hello everyone, which of these two machines do you think is better for competitions and DXing?

BG7NOD

Do I really need to post something asking about this?😄

BD4WCL

BG7NOD I'm really torn because the FTDX10 noise reduction is just amazing...

bg7xwf

Are the filters in the SUNSDR2DX and the DX10 hierarchical? I directly chose the DX10, and many people naively think that "wide bandwidth = dedicated to competitions." In reality, competitions are more about testing the filters. After all, if you have a strong CW station outside of 1000 Hz, poor filters will easily cause your VFO or DuangDuang to malfunction.

BD4WCL

bg7xwf That's why I wrote this post – I value DX10's interference resistance and envy SUNSDR's dual-shielding and wideband capabilities.

PPPPPAN

bg7xwf If I'm not playing CW, then I can choose to play Sun instead.

BG9CHE

bg7xwf I tried this on a SUNSDR2 DX in the 25-year CQWW CW competition, and while the RX filter isolation was adequate, I could quickly adjust the bandwidth between 50-500 Hz. Furthermore, the machine allows for convenient direct connection of additional external filters between the rear RX OUT and ADC IN ports. Of course, the original DX10's native noise reduction performance is truly outstanding; there are no competitors in that range.

BD4WCL

PPPPPAN Actually, I can't operate CW effectively either. I'm interested in the DX10 because of its noise reduction capabilities.

BD4WCL

I've noticed an interesting phenomenon: among my acquaintances, some prefer SUN radio for DX10, while others prefer SUN radio for DX10.

PPPPPAN

BD4WCL Amateur radio is a walled garden (

BG7NOD

BD4WCL Those who own the DX10 and FT-710 tell you that the noise reduction is indeed very good. The DX10 offers excellent value for money, and both the FT-710 and DX10 are great choices; if I were to give a personal recommendation, those needing a mobile base station should buy the FT-710, while those only needing a base station can choose between the DX10 or DX101.

BD4WCL

Hello everyone, I'm not particularly focused on CW performance, and DX10 doesn't require a separate filter to achieve optimal performance, right? I'm mainly interested in the noise reduction and sensitivity for SSB, especially in urban environments where the environment is relatively poor.😂

BG9CHE

BD4WCL If you're looking for the best performance within a city, DX10 is definitely the way to go. The noise reduction really works well. However, the SUNSDR2 DX isn't ideal for shortwave beginners; it requires a lot of custom settings and adjustments, making it more difficult to use than DX10.

BG7NOD

BD4WCL The CW unit has a built-in 500Hz filter, and you can also optionally purchase a 300Hz filter for approximately 1K RMB. The DX-101 already includes this filter, but the software allows you to adjust the bandwidth. That's how it works.

Liridice

Therefore, if noise reduction is needed, a phase shifter, such as the MFJ-1026, or a DIY version of the vk5tm design could be used.
https://www.vk5tm.com/homebrew/noisecancel/noisecancel.php

BD4WCL

BG9CHE 了解了，谢谢

BH7HQT

First, buy the equipment you like.~~I regretted not buying another one later.~~
The subsequent section will primarily focus on cloud experiences.
A key strength of the SUNSDR2DX is that the entire software system has been optimized for remote operation and competition, making it easy to participate in competitions remotely. It also includes a large number of auxiliary functions that allow you to quickly locate other stations. The overall user experience is completely different from "traditional radio stations," and you can refer to some usage videos on Bilibili. If you have the conditions to set up a remote station in the suburbs or countryside, the SUNSDR2DX should greatly reduce your troubles.
Based on my own experience with both FT8 and some limited experience with ham radio, there are certain locations where a simple change of receiver is completely ineffective. If you really want to participate in competitions, you need to find specific "lucky" locations and set up your own antenna accordingly. Otherwise, the noise will not only affect your reception.

BH7JUO

In reality, SDR is much better. The interference mentioned earlier, primarily from strong signals on adjacent channels, mainly occurs when multiple transmitters in a station work together during competitions, resulting in cross-band interference or strong signal suppression within the same band. In this case, the FTDX series has some advantages, but you can refer to large competition bases in China, especially those that use in-band assistance technology. By observing what equipment they use, you will understand. However, the comfort of using a spectrum analyzer and spot scanning plus local decoding is far superior to traditional machines. As for noise reduction... it's more useful for CW, while SSB seems like a waste of time to me.

BA7NNC-JOE

For home use, I would choose DX10. If I were focusing on competition, I would definitely choose SUNSDR.

5Breeze

In terms of workmanship, the Yaesu IC is better made. The Sun SDR, with its larger sampling rate ADDA and power amplifier, has a louder sound. One is gentle and delicate, while the other is powerful and aggressive.

BI4MPY

I bought both to try them out.

BD4WCL

BI4MPY 没钱....

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