Date   

Re: Still remember KN-Q7A?

JOHN CRONHELM
 

Hi Larry,
With this PCB would I still have to remove parts from my existing KN-Q7A to get Oled to work.
Unfortunately have still not heard any stations,even though band noise is normal. This is because of 
very poor propagation at bottom of Sun Spot cycle. Plus a lot of Auroral absorption of signals here in the north. We'll see what happens after the Autumnal Equinox at the end of September.

On Monday, September 17, 2018, 1:38 PM, Larry Lovell <n7rgw@...> wrote:

I have a modification that will work with both the KN-Q7A and the CS-Series radio.  I have a PC board that puts all of the Sandwich on a single board except of course the Arduino.  It has an OLED display to display the frequency you are on and will allow you to program LSB or USB as well while receiving a signal.  It will plug into the radio and has it's own faceplate as well.  http://www.qrvtronics.com/CatHAM_Radio/HAM_Display_Options.htm.  Software is included with the kit.
I am working on a multi-band option that will work as well, 80, 40, 20, 17 and 15 Meters.
Larry


Re: HT-1A videos uploaded

Adam Rong
 

Faisal,

Looking forward to more videos about HT-1A. Besides Japan, only a dozen people own HT-1A. As a proud owner, please share the videos if you like it.

Thanks,
Adam


Re: Still remember KN-Q7A?

Adam Rong
 

Norm,

Thanks for the suggestions. For now, I just use crystals on hand to make a receiver for fun. I just get tired of the modern digital processing radios. I just need an analog radio with low power consumption.

Speaking of the receiver, I did have another one with 4 crystals and 39pF for IF filter and 2N3904 in the place of MC1350. The sensitivity and selectivity are both okay and I believe the noise pattern and audio is more favorable to me. Probably I will build another one to make sure it will work that way and make a simple receiver kit at low cost. This kind of receiver kit will be the platform for hams to experiment. You can add transmitter circuit by yourself, or add multiple band options, or display options etc. You have enough room and you just pay less for the platform.

Thanks,
Adam

在 2018年9月17日,下午3:25,marjannorm <marjannorm@...> 写道:

Hi Adam. The KN-Q7A is a very good rig indeed, no doubt about that. If you are designing a receiver from scratch on 40m, then 7.000 through to 7.150 at least is a must, because Parks on the Air, SOTA, and other portable operations use 7.140 through to .150. And - AND, then there is the CW qrp operations at the lower end of the band. The LED tuning is ok, and gets around a problem, but a small LCD display smaller that the usual 16x2 would be a real advantage.
Just my thoughts. Keep up the good work
Norm vk5gi
McLaren Vale
South Australia



Re: Still remember KN-Q7A?

Adam Rong
 

John,

The propagation is very poor indeed because of the spotless sun. You will hear more signals here in Asia, Australia and also Europe in the range of 7.050-7.130, especially in night time.

Thanks,
Adam

在 2018年9月16日,下午11:21,JOHN CRONHELM <johncronhelm@...> 写道:

Adam,
I have heard nothing except band noise on my KN-Q7A from 7.050-7.130 since mid November 2017, but very occasionally further up the band on my main transceiver and antenna. Bottom of cycle has really hit this area Newfoundland. 20 mtrs is dead.
John vo1jcc.


Sent from Yahoo Mail for iPad

On Sunday, September 16, 2018, 10:25 AM, Adam Rong <rongxh@...> wrote:

Gang,

I listen a lot but seldom transmit. Although I have a few radios to choose from, I still wish to build a dedicated receiver. I hope it is low noise and high performance, so I consider KN-Q7A receiver portion. By using four crystals in crystal socket, I can tune 7.000-7.030 for CW, 7.050-7.130 for SSB. I added a power switch and power indicator LED and power consumption is about 35 mA.

I have depleted MC1350 so I believe for a while it is not possible to produce more CS kits, but I have an alternative solution and it works fine. Some redesign is required, so let’s wait for some time. 
<WechatIMG3.jpeg>
Thanks,
Adam
<WechatIMG3.jpeg>


Re: Still remember KN-Q7A?

Larry Lovell
 

I have a modification that will work with both the KN-Q7A and the CS-Series radio.  I have a PC board that puts all of the Sandwich on a single board except of course the Arduino.  It has an OLED display to display the frequency you are on and will allow you to program LSB or USB as well while receiving a signal.  It will plug into the radio and has it's own faceplate as well.  http://www.qrvtronics.com/CatHAM_Radio/HAM_Display_Options.htm.  Software is included with the kit.
I am working on a multi-band option that will work as well, 80, 40, 20, 17 and 15 Meters.
Larry


Re: HT-1A videos uploaded

Faisal Akber (VA3SFA)
 

I didn't make a video but yesterday I took the HT -1A out to a park and had a great time listening to SSB on both 20m and 40m from CM97.

Maybe next time I will record the outing and post it on Youtube. 

72,
Faisal VA3SFA

From: Timothy Fidler
Sent: Monday, September 17, 2018 04:33
To: crkits@groups.io
Reply To: crkits@groups.io
Subject: Re: [crkits] HT-1A videos uploaded

It would be really nice to have a video from an English speaking country,,,, I include America there, showing how the HT1A performs in SSB listening mode. Some CW tcvrs are find for this but others like the one from Hans Summers simply cannot do it because of the architecture.  FW it is worth. ..there must be something on Ytube but mostly it is older models...


Re: Still remember KN-Q7A?

Timothy Fidler
 

Norm I have sent an email to AR suggesting  a small PCB with the xtals mounted and a diode switch arrangement  (that would add cost of Rotary switch too to the box of bits).  THere is no chance he will offer his sandwich VFO as this would drive the price out of the water.  I also suggested a source of MC 1350 although he has local access to UTSource.   THere is too the option of switching in  an extra capacitor in the BPF chain and making it a 40/20 Rx which is then starting to build up some momentum. 
That however might mean a switched xtal filter unit too if one wanted the simplicity of a pulled LO.

as for freq display -  have a look at Kits and Parts in USa he sells a CW tcvr and recommends an LCD display that is fully buiilt up  (clearly he cannot compete).  Price is about USD $13 ex PRC.

Also there is an LED version that sells in the US as a six digit display (and appears to have preamp) . Typical US price is $13 which is about $20 AUD plus transit . PM me and I can give you the address on FL (bricks and mortar place )> Adam would have option of buying one or other in and offering it as an extra.  He would likely be able to offer it at the same price as you would pay in the West.    TEF


Re: HT-1A videos uploaded

Timothy Fidler
 

It would be really nice to have a video from an English speaking country,,,, I include America there, showing how the HT1A performs in SSB listening mode. Some CW tcvrs are find for this but others like the one from Hans Summers simply cannot do it because of the architecture.  FW it is worth. ..there must be something on Ytube but mostly it is older models...


Re: Still remember KN-Q7A?

marjannorm
 

Hi Adam. The KN-Q7A is a very good rig indeed, no doubt about that. If you are designing a receiver from scratch on 40m, then 7.000 through to 7.150 at least is a must, because Parks on the Air, SOTA, and other portable operations use 7.140 through to .150. And - AND, then there is the CW qrp operations at the lower end of the band. The LED tuning is ok, and gets around a problem, but a small LCD display smaller that the usual 16x2 would be a real advantage.
Just my thoughts. Keep up the good work
Norm vk5gi
McLaren Vale
South Australia


Re: Still remember KN-Q7A?

 

Hi Adam,
Thanks so much for responding.
I will check my crystals so I can use the rig to copy CW.
73 BOB AF2DX
Bob,

To receive 7.000-7.030, I used VXO crystal of 15.500 MHz (this is the one used with 8.192 MHz IF to cover 7.280-7.300 MHz), and the IF crystals are 8.4672 MHz.

The resistor on the jumper is the current limiting resistor for the amber LED. It can be 1~3.3k ohm.

Thanks,
Adam


beargyrils@...


-----Original Message-----
From: Adam Rong <rongxh@...>
To: crkits <crkits@groups.io>
Sent: Sun, Sep 16, 2018 10:43 am
Subject: Re: [crkits] Still remember KN-Q7A?

Bob,

To receive 7.000-7.030, I used VXO crystal of 15.500 MHz (this is the one used with 8.192 MHz IF to cover 7.280-7.300 MHz), and the IF crystals are 8.4672 MHz.

The resistor on the jumper is the current limiting resistor for the amber LED. It can be 1~3.3k ohm.

Thanks,
Adam


Re: Still remember KN-Q7A?

JOHN CRONHELM
 

Adam,
I have heard nothing except band noise on my KN-Q7A from 7.050-7.130 since mid November 2017, but very occasionally further up the band on my main transceiver and antenna. Bottom of cycle has really hit this area Newfoundland. 20 mtrs is dead.

On Sunday, September 16, 2018, 10:25 AM, Adam Rong <rongxh@...> wrote:

Gang,

I listen a lot but seldom transmit. Although I have a few radios to choose from, I still wish to build a dedicated receiver. I hope it is low noise and high performance, so I consider KN-Q7A receiver portion. By using four crystals in crystal socket, I can tune 7.000-7.030 for CW, 7.050-7.130 for SSB. I added a power switch and power indicator LED and power consumption is about 35 mA.

I have depleted MC1350 so I believe for a while it is not possible to produce more CS kits, but I have an alternative solution and it works fine. Some redesign is required, so let’s wait for some time. 
Thanks,
Adam


Re: HT-1A videos uploaded

Adam Rong
 

Nakajima-san,

Thanks for sharing these videos during your trip to California. Dual bands, more chances to make QSO. 5 watt is also very important for some poor conditions.

Thanks,
Adam


Re: Still remember KN-Q7A?

Adam Rong
 

Bob,

To receive 7.000-7.030, I used VXO crystal of 15.500 MHz (this is the one used with 8.192 MHz IF to cover 7.280-7.300 MHz), and the IF crystals are 8.4672 MHz.

The resistor on the jumper is the current limiting resistor for the amber LED. It can be 1~3.3k ohm.

Thanks,
Adam


Re: Still remember KN-Q7A?

 

Adam,
I have the very early one and it is only 10-KC TX.
Can the early unit receive the CW part?
What is the resistor on the jumper for?
Thank you
BOB AF2DX

beargyrils@...


-----Original Message-----
From: Adam Rong <rongxh@...>
To: crkits <crkits@groups.io>
Sent: Sun, Sep 16, 2018 8:55 am
Subject: [crkits] Still remember KN-Q7A?

Gang,

I listen a lot but seldom transmit. Although I have a few radios to choose from, I still wish to build a dedicated receiver. I hope it is low noise and high performance, so I consider KN-Q7A receiver portion. By using four crystals in crystal socket, I can tune 7.000-7.030 for CW, 7.050-7.130 for SSB. I added a power switch and power indicator LED and power consumption is about 35 mA.

I have depleted MC1350 so I believe for a while it is not possible to produce more CS kits, but I have an alternative solution and it works fine. Some redesign is required, so let’s wait for some time. 
Thanks,
Adam


Still remember KN-Q7A?

Adam Rong
 

Gang,

I listen a lot but seldom transmit. Although I have a few radios to choose from, I still wish to build a dedicated receiver. I hope it is low noise and high performance, so I consider KN-Q7A receiver portion. By using four crystals in crystal socket, I can tune 7.000-7.030 for CW, 7.050-7.130 for SSB. I added a power switch and power indicator LED and power consumption is about 35 mA.

I have depleted MC1350 so I believe for a while it is not possible to produce more CS kits, but I have an alternative solution and it works fine. Some redesign is required, so let’s wait for some time. 
Thanks,
Adam


HT-1A videos uploaded

mx6s@...
 

Hi All,

Followings are my HT-1A field operation video in California.
On the day, 40m condx was not good. So I moved up 20m and made several QSOs.
This 5-watt dual bander worked fine in my travel. Equipped internal battery, 5W continuous output,
good sensitivity and easy to see display are the nice companion's feature during trip.
Enjoy !


Choc Perf Board article published

Adam Rong
 

Gang,

My article “Make a SSB transceiver with the Choc Perf Board” was recently published by the Sept - Oct issue of Amateur Radio magazine from Wireless Institute of Australia. 

To see the table of contents, please go to:

To view the article, you can download from my web site:

If you want to try out the boards, you can PayPal 10 USD to rongxh@... and I will ship 4 pcs (2.5 x 4, free shipping) during the promotion period of this year end.

Thanks,
Adam


Year end big promotions

Adam Rong
 

Gang,

This is the 7th year of my kit business. Starting from October 1 (shipping date) till the end of this year, I will offer discount as follows:

1. All products on http://crkits.com will be free shipping to worldwide.
2. If you buy the second pcs of a product, you get 10% off. So invite your friend to buy along so both of you can get 5% off.
3. You can place orders now to qualify the above discount if you accept shipping later than Oct 1.

Thanks,
Adam


Re: HT-1A progress update

Adam Rong
 

Gang,

The first batch will be depleted soon and we are waiting for the 2nd batch because the case customization might take a few weeks. So far the feedback is quite positive and we are waiting for the first eham.net review soon.

Most kits went to Japan. As the Tokyo ham fair is coming soon, please check out the sample at the QRP village booth if you are visiting Japan. It becomes a tradition thanks to Nakajima-san that CRKits products are shown in the QRP village booth every year.

Recently I purchased a few old Kenwood radios like TS-940S and I am amazed by the great performance and nice design about 30 years old. The documents are well written so I can easily repair my radio if it goes wrong. Good examples for me to follow.

Thanks,
Adam

Thanks,
Adam


New file uploaded to crkits@groups.io

crkits@groups.io Notification <crkits+notification@...>
 

Hello,

This email message is a notification to let you know that a file has been uploaded to the Files area of the crkits@groups.io group.

File: Manual_montaje_revB_EN_v2.pdf

Uploaded By: Adam Rong

Description:
English HT-1A kit building instruction revised by Jon Iza, EA2SN.

You can access this file at the URL:
https://groups.io/g/crkits/files/HT-1A%20documents/Manual_montaje_revB_EN_v2.pdf

Cheers,
The Groups.io Team