The SCA-RL/SCA-RLA is a low cost, high performance SCA receiver. It is a replacement for the SCA-BA and SCA-BL. It features an improved design that will provide better performance in urban areas where numerous stations can overload sensitive receivers, while maintaining the high sensitivity needed in rural areas. It is also designed to tolerate LPFM stations, which may appear in the future. The SCA-RL is the basic low-cost receiver, while the SCA-RLA is the version that offers many of the options formerly available only on the SCA-BA.
The SCA-RL/SCA-RLA feature enhanced tone controls, main/sub switch (which can be disabled at the factory), and provision for dynamic noise reduction. The SCA-BLA has provision for external antenna connector with switch, and line-output jack.
Physical specifications
| Cabinet | Vinyl Wrap with simulated maple finish |
| Faceplate | Gold-finished aluminum with optional logo |
| Speaker grill | Perforations in aluminum faceplate |
| Size | 9.5 x 5 x 4 inches |
| Weight | 2.5 pounds for radio; 0.5 pound for AC Adapter |
| Antenna | Forty-three inch collapsible whip antenna |
| Controls | Front panel volume and tone control |
| Features | Main/subcarrier switch on both models, switchable low-pass filter, line output jack, external antenna connector on SCA-RLA |
| Headphone | Optional ¼ inch universal jack |
| Safety | No lethal or hazardous voltage present within the receiver. There is no shock or fire hazard under any circumstances |
All tests made with 10% injection to baseband (7.5 kHz deviation) at 67 kHz. Measurements are referenced to 6 kHz deviation of subcarrier. Tone control set for treble. Volume control set approximately ¾ full.
| Specification | Test parameter | Min | Typ | Max | Unit |
| Frequency Response | Ref 400 Hz | 0 | db | ||
| 25 Hz | -1 | 0 | db | ||
| 3500 Hz | -2 | 0 | db | ||
| 5000 Hz | -3 | -1 | db | ||
| Deemphasis | Standard | 120 | 150 | 180 | usec |
| Distortion | 1000 Hz |
2.5 |
4.0 |
percent | |
| Crosstalk | 1000 Hz main |
40 |
50 |
db | |
| Sensitivity | 30 db quieting |
10 |
20 | uv | |
| Selectivity | +/- 400 kHz | 40 | 50 | db | |
| Noise | 1.0 mv rf input |
55 |
50 | db | |
| Audio output | Into 8 ohms |
750 |
1000 | mw |
All ComPol, Inc. receivers utilize our patented superhetrodyne SCA demultiplexer. This technology replaces coil-capacitor filters with ceramic filter elements to guarantee the highest possible fidelity with minimum distortion and out-of-band noise. Also, this results in minimal aging. (Patent number 5,023,933)
Note: These SCA receivers are made in the United States of America. Most
major components are also made in the USA.