在 2020年3月25日，下午8:45，David Holland <g4ldt@...> 写道：

On 25/03/2020 11:18, Adam Rong wrote:

Folks,

I am a distributor of Windcamp. I am stocking these two products:

AP-8 Anderson Powerpole Splitter?

(1 in 7 out)

Gipsy 5-50MHz Coil Dipole Antenna

The price is good for this group. If you also like other products on the web site, please let me know so I can stock some of them.

Thanks,

Adam

How do I buy items from you?? I am interested in the powerpole splitter and the DSB FT8 transceiver kits.

Regards

David G4LDT

在 2020年3月25日，上午12:37，Kenneth Delap via Groups.Io <zz663@...> 写道：

?With the shelter in place order getting some time to build the CV-40V kit. Through step 2 so far so good.

Ken
KX9U

<IMG_1844.jpg>

在 2020年3月24日，下午9:38，Greg DL3GJ via Groups.Io <gjacykowski@...> 写道：

Hi Adam,

just to inform you - tha package sent last monday (March 16th) arrived to Germany without troubles (actually it was here already on Friday, successful delivery happened first today). Now, time to melt some solder! :-)

Thanks and best regards Greg

在 2020年3月21日，上午5:05，Conor Farrell <conchobhair.ofearghail@...> 写道：

?

A brief update: On the 40m D4D, I resoldered the joints for the coils and made sure they were positioned so that they were not too close to or touching other components. I powered up the radio and the characteristic sound from the PCB has returned! Radio propagation conditions aren't good right now but I'll test the set and see how it performs now.

Why did I do this? Well, last year when I first built the 40m kit, there was no sound from the board and I was not being spotted. (I had already built another kit for 20m which was working well so I knew what to expect.) I then resoldered the coils, got the sound, and was making QSOs immediately.

I will report back with results over the weekend in case this information is useful to others.

Conor

On Fri 20 Mar 2020, 19:33 Conor Farrell via Groups.Io, <conchobhair.ofearghail=[email protected]> wrote:

Hi Adam and friends,

I own two D4D transceivers, one each for 20m and 40m. I've really enjoyed using them.

Recently I noticed that I haven't been making any QSOs, and I am not being spotted much on . At first I suspected it may simply be due to adverse propagation conditions, but when I listen to broadcast stations on shortwave I get very good reception.

When I first constructed the kits and was making lots of QSOs, I noticed that a component in the set emits an audible noise (the FT8 tones) during transmit - maybe one of the coils vibrating as an alternating current passed through it. It was faint but if I listened carefully I could hear it quite easily. Recently, however, when I'm not making QSOs, this noise has stopped. I may be incorrect, but my guess is that the noise-emitting component is part of the TX amplifier section, and it has become faulty, resulting in a weakened transmission.

This evening I did quick test: I tuned a shortwave receiver to 14.074 MHz and used the "Tune" function in WSJT-X to test the transceiver. I could hear the tone easily, but there was also some noise in the signal. I also tested the other D4D transceiver on 7.074 MHz and that signal was much cleaner, with no noise.

So, in summary:
- I am not being spotted a lot and I'm not making any QSOs, with both transceivers
- Both of my transceivers are no longer emitting any audible sound from the PCB
- The signal on the 14.074 MHz D4D seems a bit noisy
- Receive seems to be working well in both transceivers

Do you think I might need to replace any parts on my transceivers?

Best wishes and 73,
Conor EI6GSB

在 2020年3月18日，下午11:47，Peter Garbett <petegarbett1958@...> 写道：

Enjoyed putting that together thanks. I did have to replace the relay . The one shipped would only select transmit for a fraction of a second.? ?Since I'm doing this to educate myself? I'm happy enough. Debugging it was interesting just thought you might like to know in case there's a batch of faulty ones.? ?Also the photos show a nice low profile crystal to place a resistor on top of and mine isn't.? Again no problem.??

在 2020年3月17日，上午6:58，Dr. Pedro E. Colla (LU7DID) <lu7did@...> 写道：

Hi,

My D4D after working very smoothly for several months turned deaf recently, it does work but only signals extremely strong are received.

Any clue or test to perform to start with?

73 de Pedro, LU7DID

在 2020年3月11日，下午10:26，Adam Rong <rongxh@...> 写道：

Folks,

CS-40V kits will be shipped in 2 weeks. Here, V is for VXOrganic. There is no DDS, MCU, or anything else digital. All analog, all organic.

The IF is 8.467MHz and I have improved the pass band flatness with a better impedance matching. Thus, the audio receiving and transmitting sounds noticeably better. Fidelity is sort of organic.

The IF amplifier chip MC1350P is gone. The replacement is also an organic solution, a tiny module of a dual gate FET. If you still have MC1350P in your stock, use it. If not, you can use this replacement solution. The gain is lower, the gain control is counterclockwise, but it is quieter. Using what you have is also sort of organic.

Again, I will do the kitting all by myself, the owner of the business. I can memorize all the parts. No low level mistakes by rookies. That’s another sort of organic.

The packaging is a bubble envelop. The printed manual is removed. You don’t have to worry about the trash disposal. That’s another sort of organic.

Finally, the price is 60 USD. That’s not usual price for organic, but lower price will reach more customers. The price for microphone speaker is 15 USD and the shipping is 20 USD or 5 USD for returning customers.

Yes, you can place order now offline.

Thanks,
Adam