The S4.04 UHF range may be switched between four frequency channels, and may be used license-free in the UK on channel 70. Systems are available with belt-pack or handheld transmitters. Beltpacks can be switched for use with a microphone or musical instrument, and are available with lapel or aerobics headband microphone. Handheld transmitters have dynamic capsules.
Since only four frequencies are available for use, only four S4.04 series transmitters can be used at once (if all are programmed to the same four frequencies) so the S4.04 range is appropriate for a site with up to four systems in use at one time or for where the likelihood of other users trying to use the same frequencies is considered acceptable.
| Finish | Resin, coating | Dimensions | 62(W) x 100(H) x 25(D)mm |
|---|---|---|---|
| Weight | 85g with battery | Power supply | 1 AA size battery, 1.5V |
| Battery Life | Approximately 10 hours | Sensitivity | 10uV at 45dBA, S/N |
| Audio Frequency Response | 50Hz – 15kHz | Diversity Reception | Antenna Diversity |
| Squelch | Tone SQ, Carrier SQ, Noise SQ | Audio Output Level (Max.) | Balanced (XLR socket): -20dBu, Unbalanced(1/4″ jack socket): 10dBu |
| RF Carrier Power | 10mW | Audio Input Level | -6dBV (maximum), mic gain 0dB |
