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Antennas : Helical- 13 cm Helix Antenna
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Here is the design of a 2 4 GHz antenna that is ideal for amateur ...[ Hits: 65543 | Votes: 90 | Rating: 6.04 ]
- 160m to 10m Sterba Curtain Antenna
Even if using a tuner this multiband antenna will let you operate from 160 to ...[ Hits: 10362 | Votes: 7 | Rating: 6.57 ]
- Patch antenna for APT
- WlHDX
The patch or microstrip antenna has become a common workhorse for the microwave spectrum from ...[ Hits: 1236 | Votes: 1 | Rating: 10 ]
- Antenna Gain to ERP
A radio s transmitting power can be concentrated along the horizon by use of a ...[ Hits: 1386 | Votes: 4 | Rating: 4.5 ]
- Antenna Tuning Unit
This homebrewed antenna tuning unit also incorporates a 50 ohm QRP dummy load power meter ...[ Hits: 7288 | Votes: 5 | Rating: 6.2 ]
- Dish 802.11 Wireless Networking Antenna
This antenna modification is for the IEEE 802 11b networking protocol that operates at 2 ...[ Hits: 9443 | Votes: 8 | Rating: 6 ]
- V6 DX-pedition 2007
Six members of the Japan Amateur Radio League JARL Kyoto Club made a DX pedition ...[ Hits: 358 | Votes: 0 | Rating: 0 ]
- The Toronto Marine Ham Radio Club
Whilst Amateur Radio has a great history of invention and service to both business and ...[ Hits: 413 | Votes: 0 | Rating: 0 ]
- W6PW San Francisco Amateur Radio Club
The S F A R C is one of the oldest organizations of it s ...[ Hits: 456 | Votes: 0 | Rating: 0 ]
- Near-Real-Time F2-Layer Critical Frequency Map
This map can be used to determine the frequencies that will always be returned to ...[ Hits: 5271 | Votes: 24 | Rating: 4.84 ]
- Mod to allow separate RX and TX Antennas
This modification will allow the use of separate receive and transmit antennas on the Kenwood ...[ Hits: 1212 | Votes: 2 | Rating: 5.5 ]
- TLDetails
Transmission Line Details This utility program shows the impedance and SWR at both ends of ...[ Hits: 1206 | Votes: 4 | Rating: 9.25 ]
- ASCII to ADIFF
This program will convert comma delimited ASCII files to ADIF format for import into a ...[ Hits: 1601 | Votes: 4 | Rating: 5.25 ]
- Test Tone Generator
This Test Tone Generator TTG turns your PC into a function generator and enables you ...[ Hits: 14766 | Votes: 32 | Rating: 5.5 ]
- A low cost 600 watt ultra-linear amplifier
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This compact little amplifier is the brain child of Pat Murdoch ZL1AXB in Auckland New ...[ Hits: 32139 | Votes: 27 | Rating: 6.67 ]
- Accurate Inductance Calculator
This page allows you to calculate in the most accurate way high Q inductor coils ...[ Hits: 1156 | Votes: 3 | Rating: 6.33 ]
- A low cost dummy load
This article describes a low cost low to moderate power dummy load which presents a ...[ Hits: 7764 | Votes: 8 | Rating: 5.75 ]
- Simple Reverse Polarity Protection
This simple modification is applicable to pretty much any 12 volt operated positive earth equipment ...[ Hits: 1649 | Votes: 0 | Rating: 0 ]
- Roger Beep
This article describes a simple device to generate Roger Beep tones.[ Hits: 1634 | Votes: 5 | Rating: 6.6 ]
- Made your Iambic keyer
This iambic keyer uses a PIC16C84 or PIC16F84 microcontroller to generate the dot dash timing ...[ Hits: 4402 | Votes: 4 | Rating: 5.5 ]
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