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voltage reading for DSB 20 meter version 30 messages
I just put together the 40-meter version of DSB and measured about a watt and a half. I then decided to pull my 20-meter version which has been sitting for a while I then checked the output on it wasn
I just put together the 40-meter version of DSB and measured about a watt and a half. I then decided to pull my 20-meter version which has been sitting for a while I then checked the output on it wasn
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By tem494@...
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Chinese Niu Year Project 6 messages
Hi all, This is the Chinese Niu Year. Niu = Ox. As a holiday project, I built a uSDX in DL2MAN 5-band form. I like the design very much. Many thanks to the original designer Guido P1NNZ who just joine
Hi all, This is the Chinese Niu Year. Niu = Ox. As a holiday project, I built a uSDX in DL2MAN 5-band form. I like the design very much. Many thanks to the original designer Guido P1NNZ who just joine
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By Adam Rong
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D4D/FT8 4 messages
After placing the 470 ohm resistor across the L1, the signal is still at a different frequency than I had expected. This is the signal at the antenna when TUNE is engaged in the software. Receives ope
After placing the 470 ohm resistor across the L1, the signal is still at a different frequency than I had expected. This is the signal at the antenna when TUNE is engaged in the software. Receives ope
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By Larry Lovell
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D4D/FT8 Transceiver 4 messages
I have been assembling the 20 Meter kit and it is very nice. I did have an issue with a defective relay but it seems to be working well now. However, when I check the frequency and power at the antenn
I have been assembling the 20 Meter kit and it is very nice. I did have an issue with a defective relay but it seems to be working well now. However, when I check the frequency and power at the antenn
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By Larry Lovell
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KN-Q7A no transmit. 3 messages
Hello all, Some years ago I bought a KN-Q7A kit for 40 meters but didn't get around to even opening the parcel until a few weeks ago. I have finished the kit today. The receiver works well with strong
Hello all, Some years ago I bought a KN-Q7A kit for 40 meters but didn't get around to even opening the parcel until a few weeks ago. I have finished the kit today. The receiver works well with strong
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By G7HEU
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D4D out of stock announcement 2 messages
Folks, The D4D: DSB transceiver for Digital is out of stock. The order comes in every month but I have to keep my stock as low as possible to facilitate a move in Spring this year. When it gets warmer
Folks, The D4D: DSB transceiver for Digital is out of stock. The order comes in every month but I have to keep my stock as low as possible to facilitate a move in Spring this year. When it gets warmer
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By Adam Rong
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D4D 3 messages
How do I download D4D 20 manual and parts list? Thanks Larry
How do I download D4D 20 manual and parts list? Thanks Larry
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By Larry
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Issues with CS-40V SSB Transceiver kit build 7 messages
Hello Adam / Group I am having some building challenges. I am keeping track of all parts of the various manuals as per the instructions. I am building a CS-40V (“USA” 40M) SSB _without_ the “sandwich”
Hello Adam / Group I am having some building challenges. I am keeping track of all parts of the various manuals as per the instructions. I am building a CS-40V (“USA” 40M) SSB _without_ the “sandwich”
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By Erick
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Want to run JTDX on raspberry pi 4 22 messages
I want to run JTDX on a raspberry pi 4. What software would you recommend for audio interfacing. Any other tips and recommendations welcome. Need the thing up and running before Thursday.
I want to run JTDX on a raspberry pi 4. What software would you recommend for audio interfacing. Any other tips and recommendations welcome. Need the thing up and running before Thursday.
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By Driekus Heijsteeg
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Classic replica: MIZUHO QP-7 CW Transmitter 9 messages
Guys, Thanks to JL1KRA who brought up the idea and provided the English manual. I made it with my Choc perfboard. The output is 1 watt at 12V power supply and it worked great. See the video of the fir
Guys, Thanks to JL1KRA who brought up the idea and provided the English manual. I made it with my Choc perfboard. The output is 1 watt at 12V power supply and it worked great. See the video of the fir
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By Adam Rong
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Recent Pixie Mods 6 messages
Folks, Recently I modified Pixie and founds something interesting. Here is my schematic and the articles in Chinese. https://mp.weixin.qq.com/s/9WmZpzL8BClo2Q1xnlz4_Q https://mp.weixin.qq.com/s/SGIxWM
Folks, Recently I modified Pixie and founds something interesting. Here is my schematic and the articles in Chinese. https://mp.weixin.qq.com/s/9WmZpzL8BClo2Q1xnlz4_Q https://mp.weixin.qq.com/s/SGIxWM
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By Adam Rong
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HT-1 low output 9 messages
My HT-1A is only putting out about 2.5W. Originally it put out nearly 5W. Any suggestions of where to start troubleshooting? Thanks 73 Howard K4LXY
My HT-1A is only putting out about 2.5W. Originally it put out nearly 5W. Any suggestions of where to start troubleshooting? Thanks 73 Howard K4LXY
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By
K4LXY
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Freight adjustment
All, Due to the exchange rate of USD to RMB, I have to adjust the EMS shipping cost from 20 USD to 22 USD to compensate my loss. Meanwhile, the cheaper shipping will be increased a bit as well. Thanks
All, Due to the exchange rate of USD to RMB, I have to adjust the EMS shipping cost from 20 USD to 22 USD to compensate my loss. Meanwhile, the cheaper shipping will be increased a bit as well. Thanks
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By Adam Rong
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MX-21S and its companion
Folks, This video shows my MX-21S and its companion keyer and a holder made by JL1KRA. Thanks to JL1KRA! https://mp.weixin.qq.com/s/9NL4BP1RrUQED4fB70nSfw Thanks, Adam
Folks, This video shows my MX-21S and its companion keyer and a holder made by JL1KRA. Thanks to JL1KRA! https://mp.weixin.qq.com/s/9NL4BP1RrUQED4fB70nSfw Thanks, Adam
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By Adam Rong
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Holder stand for HT-1A 2 messages
Guys, I picked up a bail for my HT-1A. It works great with the little rig. https://www.ebay.com/itm/Special-folder-Holder-Stand-for-xiegu-G1M-X1M-SDR-HF-transceiver-ham-radio/174445417920?ssPageName=S
Guys, I picked up a bail for my HT-1A. It works great with the little rig. https://www.ebay.com/itm/Special-folder-Holder-Stand-for-xiegu-G1M-X1M-SDR-HF-transceiver-ham-radio/174445417920?ssPageName=S
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By K9DRP
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Connecting HT-1A to QRP Labs 50W PA
Folks, Someone asked me if we can connect HT-1A to QRP Labs 50W PA. I have consuled with the designer and he said we can use MUTE line (pin 3) instead of KEY line (pin 4) in J1 (the connector to conne
Folks, Someone asked me if we can connect HT-1A to QRP Labs 50W PA. I have consuled with the designer and he said we can use MUTE line (pin 3) instead of KEY line (pin 4) in J1 (the connector to conne
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By Adam Rong
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KN990 vs. K2 CW weak signal side by side 5 messages
Folks, Please check it out. Let me know what you think. https://youtu.be/wbW91dbTgxA Thanks, Adam
Folks, Please check it out. Let me know what you think. https://youtu.be/wbW91dbTgxA Thanks, Adam
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By Adam Rong
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Little Choc Receiver 8 messages
Folks, While I am still waiting for the Autumn 2020 issue of Sprat, JL1KRA sent me the cover page with my Little Choc Receiver photo. I wrote in the beginning, Hello world! I am the one who first intr
Folks, While I am still waiting for the Autumn 2020 issue of Sprat, JL1KRA sent me the cover page with my Little Choc Receiver photo. I wrote in the beginning, Hello world! I am the one who first intr
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By Adam Rong
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Camping and field operation in Shanghai
Folks, This is the national day and mid autumn festival here in China. We spent some great time with fellow hams in Shanghai at Lake Dianshanhu. The $10 EFHW antenna performs very well with KX3. We ha
Folks, This is the national day and mid autumn festival here in China. We spent some great time with fellow hams in Shanghai at Lake Dianshanhu. The $10 EFHW antenna performs very well with KX3. We ha
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By Adam Rong
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Handcraft of SSB transceiver building 5 messages
Welcome new subscribers. Here I am writing a series of SSB transceiver building techniques. It is still on going. https://mp.weixin.qq.com/s/e-Gc8syfG_5e6zVsp_svkQ https://mp.weixin.qq.com/s/3IaOFsM2U
Welcome new subscribers. Here I am writing a series of SSB transceiver building techniques. It is still on going. https://mp.weixin.qq.com/s/e-Gc8syfG_5e6zVsp_svkQ https://mp.weixin.qq.com/s/3IaOFsM2U
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By Adam Rong
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