#370: FX-4CR Transceiver PCB replacement procedure

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The FX-4CR is the updated version of the FX-4C by BG2FX that I previously reviewed in this video:
ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-sPL5eMqU6gc.html
The "CR" version includes a wider waterfall spectrum, built-in Bluetooth, up to 20W output and more. See the product webpage for more info:
bg2fx.com/fx-4cr-transceiver
There was a small hardware improvement made on this rig after the initial production run. The designer graciously sent the owners of the early units an upgraded circuit board. This video shows how to replace it.

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Опубликовано:

23 июл 2023

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Комментарии : 36

@philipwells2793 Год назад

Interesting. First time I have seen inside one of these. It looks really well engineered

@tav9755 Год назад

Quality work, Alan. I got the impression that the trx seems to be a quality product. Boards look nicely designed. Thanks for sharing

@Ammed_KN6STX Год назад

FX-4CR is nice little radio, I love mine. I also have the FX-4C it’s nice as well!!!

@mnmmnm6718 Год назад

I learn so many things from you, u r an epitome of engineering.. Thank you

@labcat73 Год назад

Great Video... That was a lot of work to film and cut. 👏

@randytheapplianceguy8838 25 дней назад

Nice work

@gerd3136 Год назад

Cool nice radio 😊. Thanks for sharing!

@alvarogaitan2529 10 месяцев назад

wow professional work. great job 73 from kb2uew

@dorin.dumitru Год назад

wonderful toy!

@PapasDino Год назад

I'll echo another commenter that the construction appears top-notch...thanks for sharing! 73 - Dino KLØS

@JimmyShot Год назад

awesome video with the steps. Thank you

@dean5263 Год назад

Very well done.

@piconano Год назад

I would love to see a video on SDR. I find passive radar using 2 or more SDR dongles, very interesting. You did a video on SDR 8 years ago.

@caulktel Год назад

Thanks for the video Alan, my FX-4CR has not shipped yet, I assume they will install the new board before it ships but it seems pretty easy to swap out.

@w2aew Год назад

Yes, all current/new shipments will have the new hardware. It was just the first 40 or 50 that were shipped a few months ago that were affected.

@ke4est Год назад

Thanks for the video!!

@wgxdz 10 месяцев назад

When did you buy yours? Any idea after what date of purchase, the radio will be shipped with a newer board?

@w2aew 10 месяцев назад

Likely anything shipped after September will include the new board. The maker sent the updated board to ALL purchasers of the early radios.

@petrok1rp254 Год назад

Do you have some reported problems like Issue 1: Audio artifacts while calling CQ Issue 2: Loss of sidetone while transmitting …?

@w2aew Год назад

Yu sent me new firmware this evening that addresses the loss of sidetone.

@vourkosdude Год назад

Hi there. I am trying to find something like this that can go to 490 and 518khz in CW to use for Navtex. Is there something you can suggest? Thank you!

@JeffCowan Год назад

When did you get yours? I haven't received mine yet and was in the early group.

@w2aew Год назад

Several weeks ago

@Mr_Meowingtons Год назад

tape the new ribbon cables into the inside of the case so you never lose them..

@j204ever5 Год назад

In Praxis, what are the difference between this and the older PCB?

@JeffCowan Год назад

Fewer spurious emissions

@FreejackVesa Год назад

Could someone explain what the use of this device is? I realize it's a radio but what other details might be available? RF is not an area that I have a lot of experience with.

@w2aew Год назад

This is a compact/portable transceiver (transmitter+receiver) designed for use with Amateur Radio, commonly known has Ham Radio. It supports the most common HF radio bands and modes used by licensed ham radio enthusiasts.

@FreejackVesa Год назад

@@w2aew neat. Thanks! Great channel by the way. I have learned a lot from you even though I don't really work in the RF realm

@w2aew Год назад

@@FreejackVesa Thank you - there's a lot more here than just RF ;-)

@paullinnell Год назад

Thanks for video!! De NØPL

@petrok1rp254 Год назад

How about CW mode operation please?

@w2aew Год назад

Earlier versions of firmware had some issues with CW timing and sidetone generation, but very recent changes to firmware seem to address these quite well.