This is the InnovAntennas 18el 2m/4m dualbander prototype on test at G8FJG. This antenna has 7 elements on 4m and 11 elements on 2m on a 4.5m boom
Working with a specialist composites manufacturer, SOTABEAMS has designed a unique heavy-duty fibreglass mast. The Tactical 7000hds has been designed for portable operators who need a more rugged and reliable mast than the normal fibreglass telescopic poles that are available
The IC-R30 is Icom’s latest wideband handheld receiver. Not only does it receive over a wide (0.1 to 3304.999 MHz) frequency range in AM, FM, WFM, USB, LSB and CW, but it can also decode digital modes including P25, NXDN, dPMR, D-STAR and Japanese domestic DCR
INRAD Desk Microphone System is an exciting line of great sounding microphone models. Each INRAD microphone has an attractive stage-style body and a unidirectional cardioid element with unique audio characteristics to accommodate every operator’s voice, radio and preferences. INRAD micrpohones can be connected to most popular amateur radio transceivers, including ICOM, Yaesu, Kenwood, FlexRadio, Elecraft, Ten-Tec products.
Steve Andrew recently completed work on a spectrum analyzer program intended for use on SDRplay’s receivers. The program is well thought out and will be a useful tool in many situations around the shack. Spectrum analyzers are complex instruments than can provide a visual indication of the device under test…
I’ll be installing a Hygain AV-640 in the next 2 days and it will be in the backyard about 50 ft behind the house. I was just going to dig a shallow trench and put it in there. However, I was wondering if it is OK to bury coax underground [su_button url=”https://forums.qrz.com/index.php?threads/buried-coax.617020/”]Read the Original Article[/su_button]
400 watts at home; 20 watts portable I received my new transceiver in the mail today, only two days after ordering it. My hopes are that it will be a one-box replacement for the FT-891, KX2 and maybe even my Flex 6300. The radio is a SunSDR2Pro from Russia (via…
Technical Reference/QRM Eliminator
Noise Canceller kit originally developed about 1989 by G4WMX and GW3DIX and improved by DK9NL and DG0KW.The VK5TM Noise Canceller is another version of the design, with the HF Vox circuit removed and a couple of other minor changes, including the use of SMD JFETs and a double-sided pcb.
In this corner…weighing in at $265 – the (insert dramatic reverb) RSPduo from SDR Play (end reverb!). With all the ingredients on hand I couldn’t resist pitting David against Goliath. For the few weeks I’ve had the RSPduo, I’ve used it mostly to copy FT8 on various HF bands and…
VisAir HF transceiver DDC/DUC 100W ATU made in Russia – HF DSP Transciever Standalone Digital Up Conversion and Digital Down Conversion.
To compliment their range of excellent HF aerials, (I use one, the’re good, they work – G8YPE), M0CVO offers a selection of VHF and UHF antenna. More information on their website [su_button url=”http://www.m0cvoantennas.com/apps/webstore/products/category/1494822?page=1″]M0CVO Webshop[/su_button]
This 4m dipole was designed as a club project for the Phoenix Radio Club to use with a bulk purchase of 4m converted “PMR” radios. No claim is made as to the originality of the basic design- a dipole is a dipole- although the design has been engineered for easy assembly and to give repeatable results.
Hello everyone, I need to replace the Heater Switch on a Kenwood 830S. Do you know if you need to remove the front panel or if I can do it from the inside? If not remove the front panel is it difficult? I saw the diagram and it looks tedious. [su_button url=”https://forums.qrz.com/index.php?threads/kenwood-830.614686/”]Read the Original Article[/su_button]
My trusty FT857 has spent the past 9 years in my truck. After scraping off some Junior Mints, petrified boogers and cigar ashes, I can see that it might look pretty good again after some clean-up. (No big scratches or dings.) Does anyone know what is used by the folks that sell “refurbished” electronic devices…
To many, this will be just another Si5351 VFO project, with nothing to distinguish it from the others. In fact, that’s exactly what it is. The “how to” of connecting an Arduino board to an Si5351 board, wiring up a display, and loading the firmware, is straightforward, and well established. To…