For Choc boards, crystals, IFT's and other small parts, please contact us directly.
Download the new 56-page Choc board building book and Free Choc board gerber file by BD6CR.
Last update: 2024-11-03
Products |
Description |
New! ADX-S V2 Kit covering 40, 30, 20, 17, 15, 12 and 10m band with Automatic band module detection, TCXO module, Bluetooth module and Audio Cable Adapter Kit Unit Price: 89 USD
Photo: BG7IKK who built the ADX-S kit and achieved over 18,000 km DX with his EFHW antenna. Click the photo to enlarge.
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The ADX-S Digital Modes HF QRP Transceiver is the
Superhet modification of Barb, WB2CBA's
open source Arduino Digital Xcvr inspired by the receiver design idea of JA9TTT. The
receiver
performance is much improved compared with the original direct conversion
design at the cost of adding only two components.
Several hardware and firmware bugs are fixed so you can build with better
experience, thanks to the feedback from dozens of the beta testers and early
domestic customers. The code is open source so you can customize the radio with your own
idea. It works with WSJT-x, JTDX on PC or FT8CN on Android phones in VOX mode.
New! iFTx on iPhone or iPad is also supported on V2 hardware with Bluetooth audio connection. ADX-S Review by Peter Parker, VK3YE ADX-S V2 Field Demo by BD6CR in English ADX-S V2 and FT8CN Demo by DL1SER in German ADX-S eHam product review Paper based:
Subscribe to https://groups.io/g/crkits to join the discussion and view:
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Classic PCB Kit (CPK) Series Please note, DC40 kit does not include NE602, which I hope you can supply by yourself. CPK1 = Pixie2023, CPK2 = DC40, CPK3 = KT Receiver, New! CPK4 = QRPP CW TX CPK-1 Pixie2023: CW Transceiver with clean output CPK-2 DC40: Clear receiver with less broadcast interference CPK-3 KT: Modern FM/MW/SW receiver for minimalists CPK-4 QRPP CW TX with bigger and cleaner RF output than Pixie2023
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You can share the kit building fun with club members and youngsters with these classic PCB kits. For example, after the SMD part pre-assembly, some primary school students of BH4GYJ (Shanghai Fushan Foreign Language Primary School Club Station) can build CPK3 KT Receiver successfully with the help from their teacher Mr. Li, BH4FGJ. Read this post. Pixie2023 Review by Peter Parker, VK3YE DC40 Short Test Video by JL1KRA CPK-3 KT Receiver Review by Peter Parker, VK3YE CPK-3 KT Receiver in Case and More Listening by VK3YE CPK-3 KT Receiver Kit Listening from Beach by VK3YE WB2CBA Barb's Review of CPK-3 KT Receiver CPK-4 QRPP CW TX Kit Build by BD6CR in English Paper based:
Subscribe to https://groups.io/g/crkits to join the discussion and view: |
13 Transistor Transceiver for Digital - 7074 USB Unit Price: 59 USD including tracked air shipping. All the parts and case are included.
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Can you build a 1-watt FT8 SSB transceiver by only 13x 2N4401 transistors? This thread contains all the information about this traditional kit of all through-hole parts. https://groups.io/g/crkits/topic/85889614#3649 Dimensions: 103mm depth x 88mm wide x 38mm
height Kit Assembly Manual Rev. B, FT8CN Operation Added Schematic: Inspired by VK3YE Knobless Wonder and K1SWL Warbler with improvements New Review by Peter Parker, VK3YE https://www.youtube.com/watch?v=pAJE7IKOuPw eHam product review average rating 5.0/5.0 Subscribe to https://groups.io/g/crkits to join the discussion and view:
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R3500D
ARDF Receiver
Kit Unit Price: 39 USD including tracked air shipping. Earbuds are removed from the kit as they are magnets.
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R3500D is the upgraded version of the well known
PJ-80
80m direction finding direct conversion receiver kit. 3500~3600 kHz
coverage. Case color is random in black, orange, green and blue.
Video review by Peter Parker, VK3YE Subscribe to https://groups.io/g/crkits to join the discussion and view: Note that the LO frequency is at half of the working frequency. It is by design, no worries. PJ-80 eHam product review average rating 5.0/5.0
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KN-Q7A manual, quick guide, part list, and drilling template
CS-series Detailed Manual with Photos, Download product photos ,Arduino Sketch for CS-17/15, CS-20 (updated), CS-40
CS-xxV Documentations
D4D Documentations
Sandwich digital VFO Detailed manual with photos, Arduino Sketch for KN-Q7A 80m, 40m, and 20m band, and Detailed manual in Spanish by Jon, EA2SN
CRK-10 manual including part list, quick guide in English
CRK-10A Documentations
Choc perfboard Build a SSB transceiver with Choc Perf Board
HT-1A User manual, kit building instructions and schematics in zipped format
PJ-80 manual, supplement manual by CRKITS and part list (with manual errata) in English
Gipsy Portable Dipole Antenna manual in English
Join our group at
https://groups.io/g/crkits to be able to access manuals and other documents and photos
Order: Order online through PayPal, or contact your local distributor (Japan, UK). Please confirm ship to address, name and telephone number during payment. Please allow about one week for kits preparation.
Payment: You can pay USD by credit card or debit card through PayPal and don't have to setup a PayPal account. Your credit card information is protected by PayPal. Your receipt will be sent to you via email by PayPal.
Refund policy: Please understand our business is still a side business. If you are not satisfied with the products, contact us and refund will be issued after you return the products with a tracking number.
Shipping: We have shipped our products through post office registered AIR parcel service from China to many countries. We will declare as commercial sample of ham radio kits and accessories and the actual value. The normal lead time per our past experience is 7~30 days (varies by countries, mostly 10~21 days). During this COVID-19 period, the lead time may take longer.
Tracking: After shipment, you will be automatically notified of the tracking number through PayPal. By default, no direct email will be sent from us. You can track online with the tracking number.
Customs Clearance and Import Duty: The buyer bears the responsibility to clear customs and pay import duty (tax) if it applies, however, we are glad to provide invoice by email per request to facilitate the buyer.
Customer satisfaction is our goal. Should you have any questions or comments, please send email to us first.
You can also subscribe to https://groups.io/g/crkits to send your questions or share your ideas.
If you need our repair service,
contact us by email for return address. If you purchased from your local
distributor, please contact local distributor directly.
Contact Owner: Adam, BD6CR
Japan distributor: JL1KRA http://jl1kra.sakura.ne.jp/
EU distributor: SDR-Kits http://www.sdr-kits.net R3500D only
All rights reserved.