low band
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Antennas : 160M- Wire antennas for the low bands
- Experiments by G8JNJ on wire antennas for low bands. Based on these tests, conclude that for multiband (160 to 6m) operation, in a restricted area it is very difficult to beat a G5RV, especially the ZS6BK version.
[ Hits: 3099 | Votes: 3 | Rating: 7.33 ]
- Single 5/8 Flower Pot Antenna
- Two meter band antenna
[ Hits: 1168 | Votes: 3 | Rating: 7.33 ]
- Mini-Whip Active Antenna
- This HF active antenna is a build of the PA0RDT Mini-Whip from a kit, it covers the entire HF band (3 to 30 MHz) and below (supposedly down to 10 kHz). It is powered by an external 12-15V supply, consuming about 50 mA.
[ Hits: 93 | Votes: 0 | Rating: 0 ]
- Delta loops for 15 20 and 30 m
- Full Wave Delta Loops for 15, 20 and 30m with perimiter dipole, quiet, low TOA, mono-band - a perfect stealth omnidirectional solution
[ Hits: 3862 | Votes: 3 | Rating: 1 ]
- Getting The Most Out Of LowFER Antenna
- Getting the most out of LowFER transmitting antennas, designing an efficient antenna for the 1750-meter band by K0LR
[ Hits: 753 | Votes: 0 | Rating: 0 ]
- Low-Band Receive Antennas
- 98 Pages PPT presentation file on low band receiving antenns by Al Penney VO1NO / VE3
[ Hits: 1534 | Votes: 3 | Rating: 4.33 ]
- LA1IC Coax-Fed slooping longwire
- Simple, inexpensive and easy to erect, this antenna provides directivity, low angle radiation and
a small gain on a number of HF bands.
[ Hits: 3920 | Votes: 3 | Rating: 7 ]
- Dual Band Half-Wave Flower Pot Antenna
- VHF UHF half wave flower pot antenna project by VK2ZOI
[ Hits: 970 | Votes: 4 | Rating: 7.5 ]
- Dual Band Flower Pot antenna
updated
- Experimental Dual Band High Gain Flower Pot Antenna
[ Hits: 823 | Votes: 2 | Rating: 4.5 ]
- Rybakov 806 Multiband Antenna
- Multiband no trap no gap antenna. This Antenna is a small wonder, easy to build and allow you to work all HF spectrum with your TRX and it's internal ATU.
[ Hits: 2473 | Votes: 2 | Rating: 6 ]
- STAR-H Corporation
- STAR-H Corporation specializes in extremely wideband dipoles and compact low-profile antenna systems for military, emergency management, commercial operations and consumer wireless applications.
[ Hits: 397 | Votes: 2 | Rating: 10 ]
- PM-SDR
- A new SDR-receiver from the italian SDR developers community. Low-cost, DDS-less Software Defined Radio full coverage receiver for all HF bands, used with powerful software on the PC for multi-mode operation
[ Hits: 2412 | Votes: 3 | Rating: 5.67 ]
- FA SDR kit
- FA-SDR-TRX, an allband & low budget SDR TRX
[ Hits: 2907 | Votes: 3 | Rating: 1 ]
- JT6M.org
- The purpose of this web site is to promote JT6M as a mode of communication on both 6M and 4M band and guide users through setting up and using JT6M effectively.
Optimised for 6 metre band Meteor Scatter, JT6M allows you to make meteor scatter contacts easily.
JT6M is part of the WSJT suite of digital weak signal software applications developed by Joe Taylor, K1JT
[ Hits: 653 | Votes: 1 | Rating: 4 ]
- 10/12 meter Mod for Ameritron 811
- 10 meter modification for the Ameritron AL-811 and AL-811H amplifier. This mod apply to other Ameritron AL Series RF amplifiers and allow extension to 10 and 12 meters band.
[ Hits: 14768 | Votes: 25 | Rating: 6.52 ]
- Codec2
- Codec2 is a open source low bit rate speech codec designed for communications quality speech at around 2400 kbit/s. Applications include low bandwidth HF/VHF digital radio.
[ Hits: 1705 | Votes: 7 | Rating: 6.29 ]
- Low cost 50 MHz Beacon
- IV3GFN beacon for six meters band
[ Hits: 568 | Votes: 0 | Rating: 0 ]
- W3LPL Receiving Bandpass Filters
- Project of receive only filters optimized for minimal loss and very high rejection of frequencies below 75% of the filter center frequency by K1TTT
[ Hits: 1079 | Votes: 0 | Rating: 0 ]
- Tri-Mode Buffer Amplifier Box
- The TMB-1 is an RF amplifier unit / receiving accessory that can be used with a low-impedance broadband loop, a high-impedance terminated loop (such as a Pennant, Flag, or Kaz Delta), and whip (telescoping rod) antennas.
[ Hits: 963 | Votes: 1 | Rating: 1 ]
- QRP AM CW transmitter
- A simple low-power broadcast-type circuit, using a crystal oscillator integrated circuit and an a collector modulated AM oscillator
[ Hits: 1097 | Votes: 2 | Rating: 8.5 ]
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