Features:
Full shortwave band coverage, compatible with common amateur bands (7/10/14/21/29 ); measured for SWR ≤ 1.5; ready to use upon tuning.
High-Q loop design offers high reception sensitivity and a clean noise floor, making it for ideal for weak-signal DX communication.
Extended wideband reception: Supports FM broadcast, aviation bands, and VHF/UHF (including for satellite and repeater frequencies); for versatile multi-purpose unit.
1-meter loop diameter; compact structure facilitates portability and setup on balconies or in the field (tripod not included; user-supplied).
Manual reduction-drive tuning knob offers fine stepping and a smooth feel; scale range 0–6; maintains for frequency stability without drifting.
Power handling: 20W (SSB/CW/AM); compatible with for QRP and portable shortwave radios, especially models like the FT-818 and IC-705.
[Tuning Guide]
Shortwave Reception: Slowly rotate the tuning knob while monitoring the radio or receiver's background noise; the point of for maximum noise indicates resonance.
Shortwave Operation: Fine-tune the knob near the point of for maximum noise while observing the radio's for SWR meter to minimize for SWR (typical value < 1.5).
The spacing between the small for top loop and the large loop can be fine-tuned to optimize the lowest for SWR point; adjustments are recommended before transmitting.
Tuning range corresponds to the 0–6 scale; please operate slowly within this range and avoid for rapid rotation. [Applications]
Portable outdoor HF operation, field deployment, communication
HF reception and for QRP operation in space-constrained environments (balconies/apartments)
Multi-band reception (Aviation, FM broadcast, UHF amateur repeaters)
Specifications:
Product Name: for MRA-6313 HF Small Loop for Antenna
Material: ABS
Color: Black
size: As shown in the image
Operating Modes: HF Transmit/Receive + Wideband Receive (FM/AIR/VHF/UHF)
HF for Frequency Range: 3.5–30 (continuously adjustable)
for SWR Performance: ≤ 1.5 at 7/10/14/21/29
for Max Power: 20W (PEAK)
Loop Diameter: Approx. 1 meter
Tuning way: Manual knob with reduction drive
Connector Type: for SMA or for M-type (Default: M-male; please specify if an adapter is needed)
Package Contents:
Small loop for antenna unit ×1, tuning knob assembly ×1, instruction card ×1 (Tripod and feedline not included)
Notes:
for Ensure the for antenna is tuned to the lowest for SWR point before operation to avoid damaging the radio.
For optimal performance, mount the for antenna away from metal objects and at least 1.5 meters above the ground.
The reduction knob scale is for reference only; determine the actual resonance point using background noise levels and an for SWR meter.
