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
2020 Summer VHF/UHF Field Day Contest
“The 2020 VK Summer VHF/UHF Field Day, a ham radio contest was held on the weekend of January 18th and 19th. The contest is split into either an... Read more
Setting up APRS on the Yaesu FT3DR Handheld Transceiver – Ham Radio Q&A
Compact Design and Reliable 5W RF Power Output (Selectable 5W/ 2.5W/ 1W/ 0.3W) C4FM Digital V/D Mode, Voice FR Mode, Data FR Mode and Conventional FM... Read more
432 MHz world tropo record extended even further to 4,644 kms
” On Saturday the 28th of December 2019, Ian GM3SEK in the south-west of Scotland managed to work D41CV on 432 MHz to set a new world record fo... Read more
New 60 MHz Beacon Now on the Air from Ireland
The first — and so far only — beacon on 60 MHz went on the air on December 16. The call sign is EI1KNH. In early 2018, the 60 MHz (5-meter) band was a... Read more
Retevis DMR Dual Band GPS radio RT72
Retevis RT72 Digital Dual band 4000 channels Two Way Radio ham radio amateur radio GPS Description & Feature: Broadband digital two way radio RT72... Read more
![VHF / UHF Propagation [ ARRL The Doctor is In PodCast ]](https://qrznow.com/wp-content/uploads/2019/12/EFFOxd3XkAEqpMx-265x168.jpg)
New release of portable transceiver IC-705 that covers all modes including DV (digital voice) from HF to 430MHz band .
IC-705 Product name / model name Amateur Radio HF / 50/144 / 430MHz <SSB / CW / RTTY / AM / FM / DV> IC-705 Suggested retail price 124,800 yen +... Read more
Review
Radioddity GA-510 10-Watt Handheld Review
➤ UP TO 8 MILES RANGE: A further and more impressive communication range comes from the 10W high power feature. The Radioddity GA-510 can be set in 3... Read more
Xiegu G90 – Review
G90 is a portable 20W HF amateur radio transceiver with an SDR architecture with built-in auto antenna tuner. The display unit and the radio can be se... Read more
Equipment
New Network Vector Analyzer FXNANO 0.5/900 MHz
Display 3.2″ , 100% compatible with all NANOVNA fw. Version redesigned with BNC, switch tact, increased battery and many other functions https:/... Read more
Wideband RF Switch (5 – 3000 MHz)
Photo: Aditya Mukherjee In an application it was required to use 6 different antennas at 6 nearby locations one at a time as the Bluetooth/WiFi antenn... Read more
Belka-DSP radio receive
The Belka-DSP radio receiver is designed to receive radio stations with amplitude, frequency and single-band modulation, as well as telegraph signals... Read more
144 MHz filter stops interference
Designed and manufactured by SOTABEAMS, this neat bandpass filter is for use with handies (HT) in areas with multiple transmitters. In such areas, man... Read more
First KX3 with PX3
“I’m trying out the first KX3 with PX3 retrofit. It is big, but it looks really nice and sounds amazing! Cost for parts, labor and US ship... Read more
Mercury III LDMOS Power Amplifier Kit
Mercury III https://www.km3km.com/ Read more
Antenna
New complete HF Portable QRP Station on the Palm of the Hand
Ver essa foto no Instagram January 19 / 2020 – New complete HF Portable QRP Station on the Palm of the Hand – Yesterday Sund... 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
6M-F Magnetic Loop
A 50~54 mHz high performance, CNC manufactured, all aluminum magnetic loop antenna. At only 18 inches, and 1½ pounds, it’s an excellent choice for re... Read more
3 Element Yagi Antenna with 30/40 Loop Dipole Adder – SteppIR
16 ft boom; Includes Controller The 3 element Yagi is the original Steppir antenna. Using our proven technology it gives continuous frequency coverage... Read more
UHF VHF Antenna 08-ANT-0861
UHF VHF antenna 08-ANT-0861 has a 25MHz – 6GHz frequency range. This HAM radio base station antenna and two way radio antenna is for land mobile radio... Read more
Inflatable Air Antennas Available from 8th January 2020
Ham AIR Antenna A professionally made, robust, fully portable & waterproof inflatable antenna, for Ham Bands, A 144-148Mhz Version, , Perfect for... Read more
