KD1JV Designs
QRP Kits and Projects for the low power Amateur Radio enthusiast
Steven “Melt Solder” Weber
NOTICE: I will be hiking the Appalachian Trial starting in mid March and ending late May or early June. I will not be available to take orders or answer email during that time.
QRP KITS
Sorry, ATS-3B kits are sold out! Another batch of kits will be forth coming in June of 2008, please watch for availability then. I do not accept pre-payment or deposits, nor do I keep very good track of waiting lists.
The
ATS-3B Six band HF CW/Digital transceiver
fits into an Altoids tin! (Digital
modes require user built PC interface and Pocketdigi software for PDA
or desktop PC)
Already have an ATS rig or want to talk to people who have one? Join the ATS users group.
http://groups.yahoo.com/group/AT_Sprint
SKC
– Simple Keyer Chip. Nothing fancy, just basic keyer functions
– 5 to 30 wpm, iambic A or B mode, side tone generation,
sequenced Tx and Mute outputs. Designed primarily to be embedded into
a rig. NEW –
now
with external keyer mode. Only $2.00 each, plus $1.00 postage per
order. 8 pin DIP IC and 2 – 2N7000's for outputs.
Check out QRPKITS.COM for additional kits designed by KD1JV, such as the DC40A, DC30A and DC20A, which are simple and inexpensive direct conversion rigs. Also, the MMR-40, a CW/SSB QRP rig for 40 meters.
“Build it from Scratch” Home Brew projects
PSK Transceiver Unique transceiver design does not use a SSB transmitter!
The MMR-40 Winner of the ARRL Homebrew challenge, non-PC option category.
A 40 meter CW/SSB transceiver using less than $50.00 in parts. How to build “dead bug” style.
The AP-80. Moderately complex, but inexpensive to build 80 M Transceiver with DC Rx.
SSB1 (Fairly) Simple SSB rig with PTT for 75 meters NEW improved circuit and board layout
SSB2 Revised (Fairly) Simple SSB rig – two part system, exciter – receiver, and 25 watt linear for 75 meters. Exciter board PCB layout now included!
SSB3 Experimental SSB exciter/receiver using bi-directional amplifiers and analog switching mixers.
DCRX Deluxe Direct Conversion Receiver. Immune to AM SWBCI.
SWRX Short Wave AM Broadcast Receiver. Simple, inexpensive and effective.
CW SPKR 600 Hz Resonate speaker. Folded channel box design. Makes an amazing difference!
ALT Altoids L Tuner (ALT) “L” tuner for half wave end feed antennas.
The “Tenna Dipper” Poor mans antenna analyzer, shows resonance of antennas, 80-10 M operation.
The “Tuner Dipper” Similar to the Tenna Dipper, but fixed crystal controlled frequency, used to adjust antenna tuners.
Linear scale analog RF power meter.
PS 0-14 volt, 0-2 amp current limited variable power supply regulator
LED battery voltage monitor. A fuel gage for your gel cell battery.
ANT Portable 40/20 trap dipole.
TX Tube Transmitter with 5763 PA and grid block keying.
Reprogram
the inexpensive Butterfly demo board for these ham radio
applications:
AD9850/ AD9851 DDS display/controller – Rx/Tx rig VFO and signal generator applications
Digital Power / SWR meter – 0-9.99 watts
Iambic keyer. Displays what your sending on the LCD display. Includes 2, 120 character keyer memories, 5 to 40 wpm speed and tune mode.