The Heil Parametric Receive Audio System Equalizer (PRAS EQ) is a state-of-the-art audio processor that enhances the internal audio systems of amateur radio, shortwave, commercial, and CB receivers. The PRAS EQ allows radio operators to modify, shape, and improve the audio output of their receivers using three separate equalization controls.
Midrange frequencies are the most critical for achieving clear voice articulation in receive audio. The PRAS allows operators to have unique control over these important frequencies. First, operators can adjust the parametric midrange filter (MID FREQUENCY) from 400 Hz through 4 kHz, with the recommended sweet spot being at 2.5 kHz. In addition, operators can control the presence of these midrange frequencies plus or minus 15 dB using the MID GAIN control. Combined with a low-frequency filter (LOW) set at 160 Hz, and a high-frequency filter (HIGH) set at 6 kHz, the PRAS provides operators unparalleled control and quality of their receive audio.
VHF
Best DMR Handheld Ham Radio for 2021 | Top 10 DMR HT Radios
What is the best DMR Handheld Ham Radio you can get in 2021, and why? Today I take you through my Top 10 choices for DMR HTs, with an honorable mentio... Read more
AO-109 (RadFxSat-2/AMSAT Fox-1E) Open for Amateur Use
AMSAT’s Engineering and Operations Teams have announced that AO-109 (RadFxSat-2/AMSAT Fox-1E) is now open for amateur use. AMSAT advises operators to... Read more
Radioddity REVEALS DB25-D Mini Mobile DMR Radio | First Look!
Radioddity has a new Mini Mobile DMR Radio about to be released which they are calling the DB-25-D. This is a small dual band DMR radio with 20W power... Read more
RV VHF Antenna Tips | Diamond X30N
I show how I erect a simple VHF antenna on my RV. Read more
Baofeng UV-10R Dual Band HT Ham Radio – First Look!
Today I go over the features and do some power testing on the Baofeng UV-10R Dual Band HT Ham Radio Specification: Brand Baofeng Power 10W Frequency V... Read more
ISS repeater remaining on until after Field Day
The International Space Station crossband FM repeater should remain active until after the Field Day weekend of June 26-27. Amateur Radio on the Inter... Read more
Changes to the RSGB 50MHz awards
The RSGB Awards Manager has reviewed the current 50MHz awards offered by the Society and concluded that the existing 50MHz 2-Way Countries a... Read more
Review
Elecraft K4 Hands-on (UK Sample)
Elecraft K4 Peter Waters G3OJV, takes a trip around the features he used when evaluating the first production sample K4 to arrive int the UK. OVERVIEW... Read more
Pl-259 vs N-Connectors is similar to Ford vs Chevy
Michael, KI7QIB, is asking a simple question “Should I replace PL-259 connectors in a feedline with N-type connectors? Read more
Astron SS-30M-AP Power Supply First Look!
New from Astron is a 30-amp Power Supply with PowerPoles and 2 USB ports on the front panel. Let’s take a First Look at this! Connectors: [... Read more
Getting your Equipment in the Right Order
Frank Arciuolo, W1ZAH, is having some problems with his antenna set up and SWR. Dave here to help point him in the right direction. Read more
Difficult Grounding Issues
Tim Desmond, KI5OUN, inspired this video on grounding. Simplest to say “Difficult Grounding Issues” Read more
New Astron SS-30M-AP Switching Power Supply Review/Demo
Switching Power Supply, 30 A At 13.8 Vdc Peak Output, Front Panel Powerpoles, Fan Cooled, Meters, 115/230 Vac Input Int. Sw., Each Read more
HamBuilder HBR4HFS 4-Band HF Ham Radio Test and Review
“This video took me a few months to put together while testing it in different environments and locations. Today we are looking at the HamBuilde... Read more
Equipment
New Firmware Updates for the IC-705, IC-7300 and IC-9700 SDR Transceivers
Icom has released updates for its latest range of Amateur radios. The updates are available for the IC-705, IC-7300 and IC-9700 SDR transceivers. The... Read more
EL/AZ 3D Printed Antenna Rotator – Testing !
“One of the Youtube viewers made a comment a few weeks ago asking about my rotator project. Their comment inspired me to finish it. This project... Read more
ICOM IC 7300 Ham Radio Go Box, It’s Final Form?
“The go box is portable operation ready. How did I do on the wire mangement? What is its final config? Check it out and tell me what you think.... Read more
Bob Heil, K9EID – Manufacturers Showcase
“We are with Bob Heil, K9EID with Heil Sound on this weeks episode of the Manufacturers Showcase” Read more
XIEGU X6100 HF TRANSCEIVER | FULL MODE | SDR RADIO
X6100 is an ultra-portable shortwave transceiver. It adopts the SDR software radio platform architecture of excellent performance, which carries power... Read more
My Ham Radio Go Box Wiring And Setup
“Today I’m putting together my ham radio go box. It featutes an ICOM IC-7300 and Alinco DR-135. The box also includes a West Mountain Radi... Read more
XIEGU X6100 – HF/50MHz Full-mode Ultra-portable Transceiver
X6100 inherits the compact and high performance characteristics of the X series.As a new generation flagship ultra-portable transceiver, it still achi... Read more
Antenna
Go2Antenna Review :: HOA Antenna
The Go2Antenna is the perfect HOA antenna. Fully capable and easy to camouflage. My Go2 Antenna is perfect for HOA’s or portable / Emergency Communica... Read more
Antennas and Connectors!
Dave, KB2UBO, has two questions… One about Whether a ZS6BKW could/should be used in an inverted V? Another about Wheather to crimp or solder con... Read more
Mechanical Issues with EFHW Antenna
“Rolf, KE1Y, has a EFHW 80 – 10 and it’s wire has broken near the loading coil. He wants to know if there is a better way to have th... Read more
RG8X No-Name Coax, You Need To Be Careful, Jim W6LG Shows What Happened To 100 Feet Of Gray Coax
Jim Heath W6LG shows what happened to RG8X that had 1500 applied. Watch the subsequent episodes for more information about coax. Read more
To Resonate or Not to Resonate?
Ben, K0ABR, simply asks Is resonate better than non resonate antenna? Read more
Attaching Coax to a Dipole
Gordon, KO4OCO, in reference to Dave’s 40 meter dipole video, he asks how the actual connection between the coupler and the antenna wire was mad... Read more
20M LOADED DIPOLE – HALF A YAGI?
Here we take a look at building a short, loaded dipole for 20 Meters, 14 MHz. In fact, this is going to be half of a 2 element yagi for the 20M band. Read more
![SSTV Transmissions Scheduled from ISS [ August 6 – 7 ]](https://qrznow.com/wp-content/uploads/2021/08/133827-90x60.jpg)
![SSTV Transmissions Scheduled from ISS [ August 6 – 7 ]](https://qrznow.com/wp-content/uploads/2021/08/133827-180x120.jpg)
