There are a number of ways to add dB gain to your transmitted signal. But how much difference does 3dB or 6dB make? Is it worth the effort! Peter G3OJV demonstrates using calibrated audio tracks. In this video I deliberately started with a difficult to hear signal that represented 0dB gain and might be ne a typical 100W signal in competition with heavy noise.
Antenna
Measuring Balun Ratios
I have been asked how to measure the ratios of a Balun or an Unun. So if you’re someone who has that same question this is a video for you. Read more
Simple Multi-Band Vertical Dipole by DJ0IP
Simple Multi-Band Vertical Dipole This simple multi-band vertical described below will give you very good performance on 40 through 10m and eve... Read more
New Hy-Gain Dual Band 4 Element 6/4m
DB-46M8EL New Hy-Gain Dual Band 4 Element 6/4m Yagi Designed by Justin Johnson G0KSC renowned antenna designer and known for his LFA and other uniqu... Read more
Ham Radio EMP Kit, The Tactical Trash Can
“Many believe the worst threat to our electronics is being damaged by an Electromagnetic Pulse. Today I show you how to prevent that damage and... Read more
Bird Technologies AT-500 Antenna Tester
Bird Technologies The AT-500, Antenna Tester provides a cost-effective, fast, graphical way of determining the quality of mobile and base stati... Read more
Rotators + Controller Rot1prog USB are smal, medium ideal for use with HEXBEAM
New product on offer – HEXBEAM SP7IDX TECHNOLOGY recommends SPID ELEKTRONIK – NEW 2017 rotators + controller Rot1prog USB are smal, medium ideal... Read more
The ULTIMAX-8040 broadband dual band double bazooka for 40 & 80 meters
The ULTIMAX-8040 broadband dual band double bazooka for 40 & 80 meters is a fantastic antenna using a newly designed “HY-Q” coax coils that gives... Read more
Review
M2 6M-1K2 HIGH-POWER 6 METER AMPLIFIER – QST Review
About 5 years ago, M2 Antenna Systems introduced a high power solid state amplifier for 6 meters (model 6M-1000) capable of a full kilowatt of output.... Read more
Jim Heath W6LG Discusses Antenna Gain, Yagis and Rotators
Jim Heath W6LG talks about antenna gain using a light bulb. He shows a simple yagi and 2 brands of antenna rotator Read more
ARRL’s The Doctor is In – Zero Beating
The Doctor explains “zero beating.” It isn’t just about CW. Read more
K3LR Talks RFI – Ham Nation 390
“Tim Duffy on RFI problems. Fixing RFI problems with Tim Duffy, go to a hamfest with Gordon West, true RMS vs. Average Voltmeters with George Th... Read more
SDRPlay RSPDX Radio Receiver Review and Demonstration
RSPdx Multi antenna port 14 bit SDR The SDRplay RSPdx is a complete redesign of the popular RSP 2 and RSP 2 pro multi antenna receiver. It’s a wideban... Read more
DXmini Updates | Pi-star DMR/Dstar/Fusion Hotspot
“Since my first video on the DXmini Hotspot for DMR / Fusion / DSTAR, there have been some updates to Pi-star itself, and some firmware updates... Read more
Equipment
(tr)uSDX Prototype: on-board measurement equipment demo
Short teaser of the on-board measurement equipment. This is by far not the final software, but it shows the hardware features we have, making life for... Read more
The CommRadio CTX-10 QRP
CommRadio CTX-10 The CommRadio CTX-10 blends high performance, internal SDR technology, high efficiency circuit design, compact size and simple operat... Read more
TM840 DMR Mobile Radio
DMR Mobile Radio 1.8” Graphic Dot-matrix True Color Display The large-sized, full color display enables the access to desired information easily even... Read more
UNIDEN UBCD3600XLT DIGITAL SCANNER RECEIVER 25-1300MHz
UNIDEN UBCD3600XLT FEATURES, FUNCTIONS AND SPECIFICATIONS: • Favorites Scan – Allows you to organize your Systems into Favorites Lists. The scanner wi... Read more
Yaesu FT-991 – Manual (PDF)
Download the PDF File from new YEASU FT-991 : user-manual-yaesu-ft-991-part-1 user-manual-yaesu-ft-991-part-2 Oficial Yaesu Web Site: LINK Read more
The ZN-HKR is new for 2015 by N3ZN
The ZN-HKR is new for 2015. It is an all brass straight key built on a 4″ diameter brass base. It features 4 ball bearing and silver con... Read more
VTR1100 Tactical Radio Communication
DESCRIPTION The LANDSEC 
VTR1100 is a 1.6 MHz to 30 MHz, 125 W or 25 W selectable HF transceiver for co-located communications in vehicle installatio... Read more
Soundcards and the SignaLink USB
Soundcards and the SignaLink USB Read more
The post Adding dB Gain to your Transmit Signal. Howe much difference? appeared first on QRZ NOW - Ham Radio News.
