The DSPPA D7822 is a UHF kit with a true diversity receiver and two wireless mics that work at the same time. It suits khateebs, teachers and trainers, with a 150 m range.
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The DSPPA D7822 is a UHF wireless microphone kit: one receiver and two wireless mics. Both mics run at the same time, and range reaches 150 m in open space.
Who the DSPPA D7822 is for
A khateeb moving on the minbar, a teacher explaining at the whiteboard, a trainer walking a training room, a presenter on stage. Each of them needs clear speech without a cable limiting their movement.
Core specifications
- True diversity receiver with two independent channels.
- 200 channels per transmitter, spaced 300 kHz apart.
- Signal-to-noise ratio of at least 105 dB, THD of 0.5% or less.
- Frequency response from 45 Hz to 16 kHz.
- RF output below 10 mW with a built-in transmitter antenna.
Quick setup without interference
Before a sermon or lecture, press scan on the receiver to find a clean channel, then sync the transmitter over infrared. Digital pilot technology adds a unique code to each channel, so a second kit in the next classroom or hall never bleeds into yours. A four-antenna receiver design reduces dropouts as the speaker moves around.
Battery and daily use
Each transmitter runs on two AA alkaline batteries for roughly 7 hours, enough for a full school day or a long training program. The receiver display shows each transmitter's battery level, so a dead battery does not catch anyone mid-sentence. Rated operating temperature is -10 to +50°C.
Typical uses in Saudi Arabia
- Jami mosques: one mic for the khateeb, one for the imam during prayer.
- Classrooms and lecture halls in schools and universities.
- Corporate and hotel training rooms.
- Stage events where two presenters share a segment.
Because both mics run at once, a jami mosque can give one to the khateeb and one to the imam when they are different people.
Connecting to your sound system
The receiver offers balanced XLR and unbalanced 6.3 mm outputs, which covers most mosque amplifiers and mixers. Power comes from a DC 12V / 1A adapter.
Frequently Asked Questions
How long does a DSPPA D7822 transmitter run on batteries?
About 7 hours of continuous use on two AA alkaline batteries, and the receiver display shows each transmitter's battery level.
Is it suitable for a khateeb in a mosque?
Yes. Both mics run at the same time, so one can go to the khateeb and one to the imam, with up to 150 m range in open space.
Specifications
- Model: D7822
- Kit contents: Receiver ×1 + wireless microphones ×2
- Receiver type: True diversity, dual channel
- Frequency band: UHF
- Frequency stability: ±0.005%, PLL controlled
- Modulation: Wideband FM
- Channels: 200, 300 kHz spacing
- Effective range: 150 m (open environment)
- Receiver sensitivity: -98 dBm
- Max deviation: ±75 kHz
- Frequency response: 45 Hz - 16 kHz (±3 dB)
- Signal-to-noise ratio: ≥105 dB (1 kHz, A-weighted)
- THD: ≤0.5%
- Receiver outputs: Balanced XLR; unbalanced 6.3 mm (max +10 dB)
- Receiver power: DC 12V / 1A
- RF output power: Below 10 mW
- Transmitter antenna: Built-in
- Spurious suppression: -50 dB
- Transmitter battery: 2× AA alkaline, about 7 hours continuous use
- Operating temperature: -10°C to +50°C
- Operating features: Digital pilot with a unique D-code per channel, four-antenna circuit, one-touch clean-channel scan with infrared pairing, transmitter battery level shown on receiver
Features
- Up to 150 m range with a four-antenna receiver: free movement on the minbar or stage with fewer dropouts.
- 200 channels with a digital code each: one kit per classroom or hall with no crosstalk between rooms.
- About 7 hours on two AA batteries: a full school day or training session, with battery level on the receiver.