The Microlab HR-26E DC Block is used to prevent the flow of direct current and low frequency current surges along the inner conductor of a transmission line, while permitting the unimpeded flow of RF signals. Applications include the blocking of current surges in subway tunnels and antenna sites during lightning storms.
The unit consists of a length of coaxial line with a series capacitor in the center conductor to block the flow of DC and low frequencies, while passing RF with negligible loss or reflections.
| Frequency: | ||
| Band 1: | 250-555 MHz | |
| Band 2: | 555–800 MHz | |
| Band 3: | 800-3800 MHz | |
| Band 3: | 3800-5100 MHz | |
| Band 3: | 5100-6000 MHz | |
| Power: | 500W | |
| VSWR: | ||
| Band 1: | 1.60:1 | |
| Band 2: | 1.30:1 | |
| Band 3: | 1.20:1 | |
| Band 4: | 1.40:1 | |
| Band 5: | 1.50:1 | |
| Insertion Loss: | ||
| Band 1: | <0.20 | |
| Band 2: | <0.10 | |
| Band 3: | <0.10 | |
| Band 4: | <0.12 | |
| Band 5: | <0.20 | |
| PIM: | <-161 dBc guarantee (2 tones at +43 dBm) |
|
| Connectors: | 4.3-10 (m-f) | |
| Ingress Protection: | IP65 | |
| Weight: | 5.0 oz (143 g) | |
