Sigma Plus upgrade kit for HFX80 and HF360
Delivery time:
Delivery time:
1-3 Business Days
Sigma Plus upgrade kit for HFX80 and HF360 is backordered and will ship as soon as it is back in stock.
The Sigma Upgrade Kit (Plus Kit) is specifically designed to expand the performance and capabilities of your Sigma HF80 and HF360 antennas . This kit improves performance on the 40m and 80m bands thanks to a low beam angle, which can result in less noise and better signal strength in some situations.
Compatibility of this Upgrade Kit :
- Sigma HF-X80
- Sigma HF-X80-XP
- Sigma HF-360
- Sigma HF-360-XP
- Sigma HF-360-XP-Top Band
Benefits of the Sigma Upgrade kit
- Improves performance on 40m and 80m: lower beam angle for better reception.
- Less noise: ideal for interference-prone environments.
- Flexible mounting: can be installed horizontally or at an angle
- Easy tuning: 40m & 80m bands can be tuned separately
Installation instructions
- Mounting – Mount the bracket of the PLUS-KIT to the bottom of the antenna as shown in picture two.
- Antenna position – Attach the HF antenna to the bracket. The antenna can be positioned horizontally or at an angle, depending on available space. Ensure the angle brackets are securely tightened with the included Allen key.
- Tuning – The 40m & 80m bands can be tuned individually by sliding the stainless steel boom up or down until the optimum SWR value is achieved.
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