General Amateur Radio Exam part 5. Volunteer Examiners, good operator practices. Reactance demonstration.
Antenna
Antenna MULTI BEAMING remote Controller by OK2ZAW & DM5XX
The MULTI BEAMING Open STACK controller by RemoteQTH.com is the black box designed to controll the stack match as the multibeaming switch. You can e... Read more
2 Meter & 70 Centimeter Mobile Halo Antenna Project
“I have wanted to try 2 meter SSB mobile for some time but did not have a horizontally polarized antenna to try it out. Since I had success buil... Read more
144 MHz Halo Antenna
Construction and Analysis of a Low Cost Omnidirectional Horizontally Polarized Antenna for 144 MHz by Dr. Carol F. Milazzo, KP4MD (posted 23 May 2012)... Read more
Equipment
Ailunce HS1 HF SDR HAM Transceiver
Ailunce HS1 Specification: Frequency Range: 0.5-30MHz Operating Mode – SSB(J3E)，CW，AM(RX Only), FM, FREE-DV TX Power: Max to 15w Product Dimensi... Read more
USRP N310 – Simplifying SDR Deployment
Product Overview The USRP N310 is a networked software defined radio that provides reliability and fault-tolerance for deployment in large scale and d... Read more
XTRX – A high-performance SDR in a mini PCIe form factor
A high-performance SDR in a mini PCIe form factor Features & Specifications RF Chipset: Lime Microsystems LMS7002M FPRF FPGA Chipset: Xilinx Artix... Read more
VHF
Baofeng Tech: Mobile Radios
“We’re excited to unveil the UV-2501 and UV-5001 Dual Band Mobile Radios. We have spent the last several months refining our first... Read more
An Introduction to the Icom IC-2730E UHF/VHF Dual Band Transceiver
This video provides an introduction to the Icom IC-2730E mobile transceiver that provides VHF/VHF, UHF/UHF simultaneous receive capability as well a... Read more
QYT KT-UV980 UHF VHF Mobile Radio
QYT KT-UV980 UHF VHF Mobile Radio Specifications: Model: KT-UV980 This product has the function of the new development menu Personalized design oper... Read more
Icom ID-51 50th Anniversary version and ID-51 Plus Firmware Update Release E1
Icom ID-51 If you were one of the customers who purchased a 50th Anniversary version of the ID-51 or the latter ID-51 Plus, then there is a firmware u... Read more
Review
3. LDMOS HF AMPLIFIER 100W INPUT 2400W OUTPUT BLF188XR 2 PCS 1.8-54 MHZ
LDMOS HF amplifier 90W input 2400W CW SSB output 1.8-54 MHz This a ready power amplifier. You will need a case and power supply only! Water-cooled h... Read more
IC-7610 – Interview with ICOM
IC-7610 Fiori Films Presents Ham Radio TV: ICOM @ Pacificon 2018. In this video Kevin N6VLF, interviews Will / AA4WJ Faint signals are no longer a cha... Read more
Where in the world is your antenna taking you today?
“This time I’m exploring the world of wspr or weak signal propagation reporting and the new WSPRLITE transmitter from SOTABEAMS. Plus, Mac... Read more
Digital Modes
FT8DMC 3rd Anniversary-Activity Days 2020
To commemorate our 3rd anniversary, special event stations will be on air during the FT8DMC Activity Days from 1. to 31. July 2020. All stations will... Read more
K1JT , JOE TAYLOR HINTS AT POSSIBLE NEW MODE!
In a post to the WSJT-X email group today, Joe Taylor K1JT hinted at some ongoing experimentation of a new digital mode with sub-modes. His post was a... Read more
WWSA GACW Contest Rules.
WWSA GACW I – Dates Second weekend of June of every year. From Saturday 15.00 UTC until Sunday 15.00 UTC. 24 hours period. II – Goal To co... Read more
