Uniden SDS100:
- Remtronix REM-820S: This antenna is specifically designed for the SDS100, featuring an O-ring that maintains the scanner’s water resistance. It’s optimized for 700–900 MHz frequencies, making it ideal for monitoring 700 MHz P25 systems. The REM-820S is priced at approximately $39.99.
- Diamond RH77CA: A popular choice among scanner enthusiasts, this antenna offers broad frequency coverage, including VHF and UHF bands, enhancing overall reception. The RH77CA is available for around $22.95.
2. Uniden BCT15X:
- Diamond D130NJ Discone Antenna: For base station setups, the Diamond D130NJ is a durable discone antenna providing wideband coverage from 25 to 1300 MHz. When mounted outdoors at an elevated position, it significantly improves reception across various frequencies. This antenna is priced at approximately $129.95.
- Comet GP-3: This base station antenna offers excellent performance in the VHF and UHF bands, making it suitable for the BCT15X. Its durable construction ensures longevity in outdoor installations. The Comet GP-3 is available for around $99.95.
3. Uniden BC125AT:
- Diamond RH77CA: This antenna is also compatible with the BC125AT, providing enhanced reception in the VHF and UHF bands, which aligns with the scanner’s capabilities. As mentioned earlier, the RH77CA is priced at approximately $22.95.
- Nagoya NA-771: A flexible whip antenna known for its improved reception in the VHF and UHF bands, offering a balance between performance and portability. The Nagoya NA-771 is available for around $16.95.
General Considerations:
- Outdoor Antennas: For optimal long-range reception, especially with base station scanners like the BCT15X, installing an outdoor antenna at a higher elevation is good. Antennas such as the Diamond D130NJ Discone can be mounted on rooftops or masts to maximize signal capture.
- Coaxial Cables: Utilize high-quality coaxial cables like LMR-400 for longer runs to minimize signal loss. For shorter connections or flexible installations, LMR-240UF can be used. Ensure all connectors are properly sealed to prevent moisture ingress.
- Antenna Placement: Positioning the antenna away from obstructions and at the highest feasible point will enhance reception. Tools like the TV Broadcast Tower Locator can assist in determining the optimal direction to aim your antenna based on nearby broadcast towers.
- Personally, I have a disc cone in my attic - don’t have to worry about weather concerns, wind, lightening etc. works fine - my son uses it mostly now. Think I spent around $79 at the time - could be wrong- but I think that’s right. Also cable going to it is important - think I spent more on long cabling than the antenna.