1. crkits@groups.io
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Using D4D as a DSB SDR radio

Adam Rong
 

Folks,

Besides WSJT-x or JTDX, you can consider HDSDR or other SDR software. You can receive a mirrored spectrum but you still can decode something. Just plug into the Mic in jack and set LO to 7.074 or 14.074 and you are good to receive something. You can receive CW, SSB or digital.

Thanks,
Adam
Re: D4D for 20 meters - Continuously Switches Between Transmit and Receive on Power UP

Adam Rong
 

Hi Tate,

The 14.074 crystal is a shorter part while the 14.070 crystal is a taller one. By using the 15pF and 27pF, I can pull the 14.070 crystal frequency up so it will work at 14.074MHz.

You can measure the voltage in parallel with the relay coil to see how it was triggered. Also, the audio level is very important. If it is marginal, it could drive or not drive the relay.

--
Thanks,
Adam

发件人：Tate Jackson N3BXZ <Tate@...>
发送日期：2020-08-09 09:15:29
收件人：crkits@groups.io
主题：Re: [crkits] D4D for 20 meters - Continuously Switches Between Transmit and Receive on Power UP

Thanks, Adam,

The Vox circuit checked out fine when I did the test at the end of Step 2.  But I will check it again.

FYI, it looks like I had the 14,070 crystals and not the 14074 crystals.  I must have misread the numbers on the crystal case.  So you did send me the correct capacitors for the version of the kit I received.

Sorry for the confusion in my email.

Thanks

Tate
N3BXZ

Re: D4D for 20 meters - Continuously Switches Between Transmit and Receive on Power UP

Tate Jackson N3BXZ
 

Thanks, Adam,

The Vox circuit checked out fine when I did the test at the end of Step 2.  But I will check it again.

FYI, it looks like I had the 14,070 crystals and not the 14074 crystals.  I must have misread the numbers on the crystal case.  So you did send me the correct capacitors for the version of the kit I received.

Sorry for the confusion in my email.

Thanks

Tate
N3BXZ
Re: HT-1A and CS-xxV Japanese web pages

qrpjl1kra
 

Evan,

Thanks your translation.
CS-xxV and HT-1A are very popular in Japan.
Many users feed backs are gathered in the Japanese pages.
Hope you enjoy my web site through translation site.
Their translation quality is acceptable in almost cases.

Junichi JL1KRA/AA3ZT
Re: D4D for 20 meters - Continuously Switches Between Transmit and Receive on Power UP

Adam Rong
 

Tate,

The caps only impact frequency accuracy. Check out the VOX circuit and the relay.

Thanks,
Adam

在 2020年8月7日，上午11:44，Tate Jackson N3BXZ <Tate@...> 写道：

I just finished building my D4D for 20 Meters.  When I power it up, it immediately starts switching between transmit and receive (I can hear the relay clicking).  I started a search here and stumbled across the engineering notice about the change in the type of crystal used in the kit.  I have the tall crystals in my kit, but the directions I followed stated to install  27p and 47p caps at C2 and C3 which I did.  But it looks like I should have installed the 15p and 27p caps instead.  My kit did not come with the 47p cap, so I ordered one.  My kit did come with the 15p cap.  Could installing the new cap sizes with the old taller crystal be the source of my problem.?

Thanks

Tate
N3BXZ

"As the previous batch of taller (HC-49U) crystals with 14.070 MHz marking are depleted, the new crystals are shorter (HC-49S), and the marking is 14.074 MHz. The oscillating capacitors are changed to 27p and 47p instead of 15p and 27p for C3 and C2. This change only applies to the 20m version of D4D. I will add a column to the part list to show it as "20m new” later this week.
D4D for 20 meters - Continuously Switches Between Transmit and Receive on Power UP

Tate Jackson N3BXZ
 

I just finished building my D4D for 20 Meters.  When I power it up, it immediately starts switching between transmit and receive (I can hear the relay clicking).  I started a search here and stumbled across the engineering notice about the change in the type of crystal used in the kit.  I have the tall crystals in my kit, but the directions I followed stated to install  27p and 47p caps at C2 and C3 which I did.  But it looks like I should have installed the 15p and 27p caps instead.  My kit did not come with the 47p cap, so I ordered one.  My kit did come with the 15p cap.  Could installing the new cap sizes with the old taller crystal be the source of my problem.?

Thanks

Tate
N3BXZ

"As the previous batch of taller (HC-49U) crystals with 14.070 MHz marking are depleted, the new crystals are shorter (HC-49S), and the marking is 14.074 MHz. The oscillating capacitors are changed to 27p and 47p instead of 15p and 27p for C3 and C2. This change only applies to the 20m version of D4D. I will add a column to the part list to show it as "20m new” later this week.
Re: Linear amps for SSB taking 3.5 W up to 45 W - what can be had for a reasonable price built up on Ebay.

Timothy Fidler
 

Gents,

I had a reply back from UTsource and the price of the "reused " MRF 186 runs about USD $20 each with USD $10 for delivery but only to the US. (I think in fact they hold stocks in US).  Price all up to  NZ for instance is much higher $ 40 USD approx or approximately $60 NZD , almost half the cost of the amplifier.  It would be about AUD $55 delivered to Australia on that basis.  so it would be as well to order spares at the same time as you bought the amplifier, if the vendor can arrange that. Most likely he cannot.  Bear in mind many of the vendors will have no idea what power MOS is inside what they are selling so you take a risk buying a spare part unless you match up a photo to the target spare part.  It is all a risk , whatever way you look at it. Remember most of these units seem to be sold with the ID on the MOS obliterated , for commercial reasons.
Re: RadioPi - a Raspberry Pi image for radio amateurs

jamflying@...
 

Here is our testing report, I translate it to English.
https://groups.io/g/radiopi/message/3

--
BG6LH, https://radiopi.club
Re: HT-1A and CS-xxV Japanese web pages

Adam Rong
 

Jim,

This doc talks about the hidden menu for reset and VFO calibration. Another doc talks about 10 MHz band TX activation at power up.

--
Thanks,
Adam

发件人：Jim Long <jphiliplong@...>
发送日期：2020-08-04 21:34:12
收件人：crkits@groups.io
主题：Re: [crkits] HT-1A and CS-xxV Japanese web pages

Would someone translate this please?

★リセット・周波数キャリブレーション

ごくまれにメモリの番号飛びなどのトラブルなどOFF/ON で復帰しない誤動作が確認さ

れています。以下の操作でリセットできます。また周波数カウンタを用いてVFO の周

波数調整が可能です。通常は不要ですので無用に実施しないでください。

（１）２つのプッシュボタンを押しながらPOWER ON

（２）２－３秒後にLCD が10.000.00 を表示

（３）基板上DDS マークの端子にカウンタをつなぎ正確に10MHz となるようにメイン

ダイアルで調整

（４）上側のプッシュボタンを押して通常復帰

（１）⇒（４）でRESET 動作となります

以上
Re: HT-1A and CS-xxV Japanese web pages

Gwen Patton
 

If you have Chrome browser, I suggest  https://about.imtranslator.net/about/company/  as the best translator extension I've ever used. It works very well. 

-=-=-=-=-=-=-=-=-
73,
Gwen, NG3P


On Tue, Aug 4, 2020 at 12:09 PM Evan Hand <elhandjr@...> wrote:
Google Translate gives:

 
★Reset/frequency calibration
 
On rare occasions, a malfunction such as a memory number jumping that does not recover with OFF/ON has been confirmed.
 
It is You can reset it by the following operations. In addition, the frequency counter is used to
 
Wave number can be adjusted. Do not use it unnecessarily as it is usually unnecessary.
 
(1) POWER ON while pressing two push buttons
 
(2) LCD displays 10.000.00 after 2-3 seconds
 
(3) Connect the counter to the DDS mark terminal on the board so that the frequency will be exactly 10MHz.
 
Adjust by dial
 
(4) Press the upper push button to return to normal
 
(1)⇒(4) will be RESET operation
 
that's all

73
Evan
AC9TU
Re: HT-1A and CS-xxV Japanese web pages

Evan Hand
 

Google Translate gives:

 
★Reset/frequency calibration
 
On rare occasions, a malfunction such as a memory number jumping that does not recover with OFF/ON has been confirmed.
 
It is You can reset it by the following operations. In addition, the frequency counter is used to
 
Wave number can be adjusted. Do not use it unnecessarily as it is usually unnecessary.
 
(1) POWER ON while pressing two push buttons
 
(2) LCD displays 10.000.00 after 2-3 seconds
 
(3) Connect the counter to the DDS mark terminal on the board so that the frequency will be exactly 10MHz.
 
Adjust by dial
 
(4) Press the upper push button to return to normal
 
(1)⇒(4) will be RESET operation
 
that's all

73
Evan
AC9TU
Re: RadioPi - a Raspberry Pi image for radio amateurs

jamflying@...
 

We have run RadioPi on RPi model B1, 2B, 3B, 4B 2G and 4G.
I am sure RPi B1 have problem with APT version direwolf 1.4.
if you want to run direwolf on a RPi B1, you may have to git and make it by yourself.

We made a serial tests about WSJT-X 2.2.2's FT8 decoding, on 5 RPi and 2 Thinkpad.
According to the result, I think if you wanna run RadioPi for:
  • A SWL monitor. you may chose RPi 2B.
  • QRP and portable: RPi 3B, no deep decode please.
  • QRO and station: RPi 4B 2G, at least.

We'd chose 12 .wav files saved by wsjt-x, and run the jt9 decode command to get the decode time.
~/ft8_samples $ jt9 -8 -d 1 *.wav

The result was reported in Chinese. But I think the chart map may help to understand it.
https://mp.weixin.qq.com/s/3bUMaNmBXHqQhOyfyJyXlg
Re: HT-1A and CS-xxV Japanese web pages

Jim Long
 

Would someone translate this please?

★リセット・周波数キャリブレーション

ごくまれにメモリの番号飛びなどのトラブルなどOFF/ON で復帰しない誤動作が確認さ

れています。以下の操作でリセットできます。また周波数カウンタを用いてVFO の周

波数調整が可能です。通常は不要ですので無用に実施しないでください。

（１）２つのプッシュボタンを押しながらPOWER ON

（２）２－３秒後にLCD が10.000.00 を表示

（３）基板上DDS マークの端子にカウンタをつなぎ正確に10MHz となるようにメイン

ダイアルで調整

（４）上側のプッシュボタンを押して通常復帰

（１）⇒（４）でRESET 動作となります

以上
Re: HT-1A and CS-xxV Japanese web pages

Jim Long
 

How is that done?

Jim
Re: HT-1A and CS-xxV Japanese web pages

qrpjl1kra
 

Jim,

This describe HT-1A 10MHz band transmit enable.

Junichi Nakajima,
JL1KRA/AA3ZT


 
Re: HT-1A and CS-xxV Japanese web pages

Jim Long
 

􀘙以下のコマンドは非公開のためご質問にはお答えしかねる場合もありますがご活用く

ださい。

★ 10MHz バンド開放

10MHz で電波を出したいときに使用します。10MHz はサポート外です、このままでは

感度が低く、送信のフィルタも考慮されていないためダミーロードでご使用ください。

”チューニングノブを押下”＋”POWER ON”

（10MHz 解放時の起動画面）

--------------------

􀘙􀘙HT-1a

20m/40m CW QRP

􀘙CRKITS.COM

-------------------

HT-1A ではなくHT-1"a"で起動します。電源を切ると元に戻ります。

★リセット・周波数キャリブレーション


What does this mean?


Jim


On Mon, Aug 3, 2020 at 9:25 PM Adam Rong <rongxh@...> wrote:
Jim,

Google translation will work but if you need to understand some details, you can ask here.

Thanks,
Adam

在 2020年8月4日，上午6:32，Jim Long <jphiliplong@...> 写道：


Is there a way to translate these important pages?

Jim Long

On Sat, Aug 1, 2020 at 4:09 AM Adam Rong <rongxh@...> wrote:
All,

Please check out Nakajima-san's pages regarding HT-1A and CS-xxV. He has maintained rich information, great detail and history. Thanks!

HT-1A
http://jl1kra.sakura.ne.jp/ht1a.html

CS-xxV
http://jl1kra.sakura.ne.jp/index001.html

Thanks,
Adam

Re: RadioPi - a Raspberry Pi image for radio amateurs

Christopher Leslie
 

Looks like everything in this pack is pretty easy software.  I'm positive it would run on any of the RPis.  Not too sure about the zero.

Chris



Sent from my Verizon, Samsung Galaxy smartphone


-------- Original message --------
From: rumeniv <roumeniv@...>
Date: 8/4/20 03:16 (GMT-06:00)
To: crkits@groups.io
Subject: Re: [crkits] RadioPi - a Raspberry Pi image for radio amateurs

What model of Raspberry Pi can be used to install the RadioPi Linux Distribution?

Does it work with older Raspberry Pi models?




На вт, 4.08.2020 г. в 0:04 <jamflying@...> написа:
Thanks Andy!
Xlog is a very nice logger software, it's quite light weight!
In the last version of RadioPi, we'd installed another logger software. But, we think it was too heavy to RPi ...... you have to install the mariaDB ......
So we change the first choice to Xlog in this version RadioPi. We hope to keep it portable, light, rapid, for field operation.
However, we think the stable version is better than to build a new one.  We noticed that xlog 2.0.19-1 is in testing on Debian hamradio packages maintain list, and we will take a watch about it!

Thanks for your great works on those packages maintain!

Re: RadioPi - a Raspberry Pi image for radio amateurs

rumeniv
 

What model of Raspberry Pi can be used to install the RadioPi Linux Distribution?

Does it work with older Raspberry Pi models?




На вт, 4.08.2020 г. в 0:04 <jamflying@...> написа:

Thanks Andy!
Xlog is a very nice logger software, it's quite light weight!
In the last version of RadioPi, we'd installed another logger software. But, we think it was too heavy to RPi ...... you have to install the mariaDB ......
So we change the first choice to Xlog in this version RadioPi. We hope to keep it portable, light, rapid, for field operation.
However, we think the stable version is better than to build a new one.  We noticed that xlog 2.0.19-1 is in testing on Debian hamradio packages maintain list, and we will take a watch about it!

Thanks for your great works on those packages maintain!

Re: HT-1A and CS-xxV Japanese web pages

Adam Rong
 

Jim,

Google translation will work but if you need to understand some details, you can ask here.

Thanks,
Adam

在 2020年8月4日，上午6:32，Jim Long <jphiliplong@...> 写道：


Is there a way to translate these important pages?

Jim Long

On Sat, Aug 1, 2020 at 4:09 AM Adam Rong <rongxh@...> wrote:
All,

Please check out Nakajima-san's pages regarding HT-1A and CS-xxV. He has maintained rich information, great detail and history. Thanks!

HT-1A
http://jl1kra.sakura.ne.jp/ht1a.html

CS-xxV
http://jl1kra.sakura.ne.jp/index001.html

Thanks,
Adam

Re: HT-1A and CS-xxV Japanese web pages

Jim Long
 

Is there a way to translate these important pages?

Jim Long

On Sat, Aug 1, 2020 at 4:09 AM Adam Rong <rongxh@...> wrote:
All,

Please check out Nakajima-san's pages regarding HT-1A and CS-xxV. He has maintained rich information, great detail and history. Thanks!

HT-1A
http://jl1kra.sakura.ne.jp/ht1a.html

CS-xxV
http://jl1kra.sakura.ne.jp/index001.html

Thanks,
Adam