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Kenwood TH-D74 APRS & DSTAR Radio
TH-D74 144 / 220 / 430 MHz Tribander
APRS : Using packet-transfer communication to exchange real-time GPS positional information and messages for APRS-compliance
Digital : Compliant with voice / digital mode D-Star digital amateur radio networks
- Built-in high-performance GPS unit
- Transflective color TFT display
- Weatherproof toughness meeting IP54/55 standards
- Wide-band and multi-mode reception
- Equipped with IF filter for comfortable reception (SSB/CW)
- High-performance DSP-based voice processing
- Compliant with Bluetooth, microSD and Micro-USB
More
A basic primer about the Continuous Tone Coded Squelch System Continuous Tone-Coded Squelch System The Continuous Tone Coded Squelch System, commonly referred to as CTCSS, has been in used in the land mobile radio arena from the late 1960’s... Read more
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Antennas
Four-square eight directions antenna system, with dummy load power indicator and high power
4SQ-8DIR antenna system The four-square phased-vertical array if used by many contesters and DXers for oreration on the low bands. This construction m... Read more
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3D Printing – A Ham Radio dipole center with BNC and 1:1 balun
Showing how easy and quick it is to design a custom center insulator for a dipole Here’s the 3D part if you want to print one for yourself.... Read more
MonoBeam Yagi MB7 10-15-20-40
MonoBeam Yagi MB7 The MB7 10-15-20-40 is a quad band antenna for 7 MHz, 14 MHz, 21 MHz and 28 MHz with loading coil and capacitive hat for 40m only. T... Read more
New log periodic array from InnovAntennas with parasitic element enhancement
100MHz to 750MHz Log Periodic Array Description InnovAntennas design and build Log Periodic Arrays for any bandwidth and for any purpose. Our LPDA... Read more
Solid Delta loop for 20m band
Delta loop Antenna Boom length: about 7m, projection on the ground 4m per arm Mounts on mast from 40 to 50mm, 60mm optional. suggested height at least... Read more
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Antennas and Wind [ ARRL The Doctor is In PodCast ]
Whether you have a simple wire antenna or a large HF Yagi on a tower, the effects of wind are major considerations. The Doctor offers tips to improve... Read more
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“Big Wire Antennas” [ ARRL The Doctor Will See You Now! ]
“Big Wire Antennas” is the topic of the new (November 21) episode of the ARRL The Doctor is In podcast. Listen…and learn! Sponsored by DX Engine... Read more
MONO 5 20- is a fullsize antenna for the 5 el band of 20 meters
14 MHz OWA yagi beam – MOMOBEAM MONO 5 20 is a fullsize antenna for the band of 20 meters (14 MHz OWA beam) designed for maximum performance. M... Read more
Antenna 1/2-wave, 5-Band HF Cobweb Antenna – MFJ-1835 Time Lapse Video
1/2-wave, 5-Band HF Cobweb Antenna Restricted space spoiling your operating fun? MFJ-1835 puts your call back on the map! This fiveband (20, 17, 15, 1... Read more
IS THIS THE ULTIMATE 2M CONTEST ARRAY?
2 x el G0KSC / InnovAntennas rigid quads with additional parasitic reflector. 16.64dBi/14.48dBd when placed 20′ (5m) above average ground with m... Read more
Chameleon Emcomm IIIP Antenna – Antenna, Portable, 160M-10M
CHAMELEON ANTENNA EMCOMM-III Portable HF Antenna is specially designed for short to long range portable and man-pack HF communications. The EMCOMM III... Read more
How To Use An Antenna Tuner
How To Use An Antenna Tuner Read more
Touch Screen Antenna Controller
“The following manual will show the features and how to use the new antenna electronic controller that, as you will see, it is by far the most s... Read more