SOME OF MY ADDITIONAL "BELLS AND WHISTLES" + TOOLS


IAMBIC KEYER

This iambic keyer uses a PIC16C84 or PIC16F84 microcontroller to generate the dot / dash timing and key the transmitter. Most modern rigs are keyed by grounding the key line. The maximum current on the keying line is usually no more than a few mA. If your transmitter has high voltage or high current on the keying line, you will need to use a relay to key the rig.

Parts list, PCB, relay circuit and PIC program source code.


QRPP CW Transceiver PIXIE-2

40m band, VXO, 8 Ohm audio output. PWR output abt 300 mW. You'll be amazed what happens at this power level with a decent antenna! The transmit signal is very clean, with no key clicks since the OSC is always running. Change XTAL to 3.560 MHz and output choke to 2.2uH and you will have 80m band TRCVR!

Tiny! Take it anywhere! (WxHxD - 90x50x105mm)


SIMPLE INTERFACE FOR DIGI MODES

This interface uses Sound Blaster (16-bit) - for RX / TX and PC RS-232 port (DTR or RTS) - for PTT. It works nice with most software for digi modes (for example: tested by myself with W95SSTV, JVComm32, ChromaPix, MixW, MMSSTV, DigiPan - FB!).


TINY-2 ANTENNA FOR 2m BAND

The "Tiny 2" is a great little 2 meter beam. It has some really interesting properties and it is a fantastic first time antenna project for the beginner. What's so great about it? Well, first of all, there are only 2 elements. This makes the construction quick and easy. Next is the size. It's tiny, hence the name. A mere one foot spacing produces a whopping 4 dBd gain! What else? How about the fact that it is a direct connect antenna! Just hook your 50 ohm coax cable to it and you are on the air, no matching, no tuning, no hassle!


MORSE CODE PRACTICE OSCILLATOR

This schematic is presented as a courtesy of The Whiterook Products Company. You can "homebrew" your own Code Buddy (Model O-2).

I hope you enjoy learning and practicing the Morse Code. Have fun!


ExpressPCB 7.0.2

ExpressPCB is a simple, easy-to-use program for creating two-sided printed circuit

boards with plated-through holes. FREEWARE!

Download


ROCK-MITE-20 QRP CW TRCVR

The Rock-Mite is a crystal-controlled direct-conversion transceiver operating on 14060 KHz (or 7030KHz - 40m version). Automatic T-R offset, reversible. Built-in Iambic keyer, 5-40WPM. Built in sidetone 700Hz. Supply voltage range 8-15V. Power output 500mW (at 12V). (Bill Jones, KD7S suggests: to increase output power to 1,25W - change Q6 to 2N3053, R18 to 6,8 ohm and L1 to 6-7 turns of #24 wire on an FT37-43 core).

Full info at http://smallwonderlabs.com/ also http://www.qsl.net/n0rc/rm/


   

5W QRP Amplifier

Simple and easy to copy wideband amplifier. Try it with RockMite or other QRP TRX.


CW Keyboard

This info is presented as a courtesy of RK3DOV.

Now you can send CW from your keyboard without PC. Switch between English/Russain Morse codes (CapsLock), save your own messages (F5,F6), use macros (F1-F4), save number of your QSO. IT REALLY WORKS!

Schematic, PCB, manual and compiled *.HEX file.


SMALL 3-ELEMENT YAGI FOR 50MHz

Optimized Yagi for 6m band. Gain 6 dB, Front/Back Ratio 31dB. Easy to copy.


BACK