70 mhz converter

MAGLoop Antenna  ^pop - Magnetic loop antenna for 10-30 MHZ, 3.5-10 MHZ, description, construction details, homemade.

7 element Yagi for 70MHz - Build a 7 Element 4M (70MHz) Beam By Paul Graver, M1CCZ

50MHz J-Pole Antenna  ^pop - Need a general purpose antenna on the magic band? The J-Pole is an easy-to-build and inexpensive device that provides an omni-directional vertically polarised antenna without the need for a ground plane. In technical terms, it is an end fed vertical 1/2 wave which is fed via a 1/4 wave matching stub.

Moxon rectangles for 6 Meters - Moxon antenna for 50 mhz, The Moxon rectangle is a quite broad-band antenna, but it is not quite broad enough to cover the entire band.

Six Meter Moxon Antenna  ^pop - N2MH description and phots of a moxon antenna for six meters band, includes clear pictures, drawings and assembling instruction to build this antenna for 50 mhz.

EH Antenna QRP tests - A QRP test with the EH antenna for 27 MHz

A J-Pole for 2-meters and 70-cm  ^pop - An Easy Dual-Band VHF/UHF Antenna from QST September 1994

Jpole by EA6IC - Jpole antenna plan for 144 and 435 Mhz

A Stacked 3-Element J-Pole - Plan and photos of a stacked 3 element jpole antenna

An EH Antenna for 27 MHz Packet Radio - An EH antenna for 27 MHz packet radio

QRA to Lat/Long converter - G7RAU QRA to LAT/LONG and visa versa

VK3RTL-R IRLP Live Stream - Listen live to VK3JED Node 6390 and EchoLink VK3RTL-R

Current Optimal Frequency Charts - Optimal Working Frequencies (MHz) for High Frequency (HF) / Shortwave Radio. By region, updated monthy.

ICOM IC706MKIIG Manual - IC706MKIIG Pdf maual

PC to RTX interface - Schematics for IC-706, IC-718, IC-756PRO, TS-570, TS-870, and simple universal S.B. interface All three interfaces presented on this page employ galvanic isolation of the transceiver from PC computer. Audio paths are separated by transformers, optocouplers serve to separate the digital paths (PTT and RTTY keying).

ICOM-706 TX RX Extended mods - extended transmit from 1.6 to 54 MHz, receive from .05 to about 165 MHz

Spectrum Lab  ^pop - DL4YHF's Audio Spectrum Analyser Spectrum Lab or Speclab started as a simple FFT program running under DOS a long time ago, but it is now a specialized audio analyzer, filter, frequency converter, hum filter, data logger and more. Can be used for MTHELL QRSS, DFCW, PSK, MSK, Castle

50MHz frequency counter, V-meter - Circuit schematic PCB and photo documentation on building a 50 Mhz frequency counter

80m SSB & CW transceiver - The 80m SSB & CW transceiver design is based on an already proven concept used in ATLAS amateur transistorised transceivers from 70's

430MHz ATV transmitter - ATV transmitter on 430MHz band used with special transmitting tube named 5894 for final stage. Run about 10W average for TV signal and 20W at synchronous peak. Final stage control gird modulation works well for NTSC color video signal and good at audio as well.

23cm dual stage preamp - A modification / combination of the DJ9 BV & I5TDJ 144 MHz preamp designs

MGF1302  GaAsFET - Published in Radioamater - CQ YU and CQ ZRS magazines, MGF1302 144 MHz and MGF1302 432 MHz

GaAs FET preamps - Build a good GaAs FET preamp for 2 meters, 222 or 440 Mhz

6m SSB/CW transceiver - Building a SSB & CW QRP transceiver for 50 Mhz

6m High Pass TVI filter - Are you suffering from TVI? Then why not try this filter for size. It is a three-stage high-pass filter that blocks low-frequency 50MHz signals while letting through UHF TV.