Detailed Answer
Yes. Antenna extension/external: 1. higher-gain antenna on the transmitter (match the connector); 2. receiver antenna extension cable (move the antenna out of the cabinet/raise it); 3. external directional antenna (cover a specific area). LDER LD series supports external antennas, gaining 30-50% more range. Note: replacement antennas must match the frequency (433/470MHz); a mismatch worsens the signal.
| Transmitter | High-gain antenna |
| Receiver | Extension/raise |
| Note | Band matching |
Note:A mismatched antenna band actually shortens the range.