|
 | Provides an increase in average power readability of a single sideband voice signal during weak signal, high interference conditions. |
| The SP-75 is connected between the microphone and microphone input of the ssb transmitter, requiring no modification of existing transmitter or transceiver. |
| A front panel switch allows the processor to be switched in or bypassed. Two additional inputs, such as a tape player or phone patch, may be front panel selected. |
| RF envelope clipping adjustable between zero and twenty decibels. LED indicates proper audio Input level. |
| Muting circuitry reduces gain during speech pauses, allowing VOX operation with the processor on. |
SPECIFICATIONS
| Processing Type: pre clipping audio compression followed by rf envelope clipping at the processor intermediate frequency. |
| Rf Clipping Range: Adjustable 0 to 20 dB from front panel control. |
| Input Level Microphone Input): 3.5 mV minimum for full processing. Gain adjustable to accommodate up to 300 mV maximum. l Input Level (Tape and Patch Inputs): 15 mV minimum for full processing. 30 mV maximum. |
| Input Impedance (Microphone): 1 megohm. |
| Input Impedance (Tape and Patch): 50 kilohm. |
| Output Level w/Processing: O-50 mV adjustable into 50 kilohm load. |
| Output Impedance: 50 kilohm. |
| Muting (Microphone Input Only): 10 to 20 dB attenuation during speech pauses. |
| Frequency Response: 400-6000 Hz@6 dB. |
| Distortion: Less than 5% T.H.D.@lkHz, 20 dB clipping. |
| Power: 11-16 V-dc@95 mA. |
| Size: 7"L x 6% "W x 2 1/4 "H (17.3 x 15.9 x 5.4 cm). |
| Weight: 1.4 Ibs. (.63 kg). |
