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2.4.2 Rear Panel Controls

Fig. 2: Rear panel controls on
SR 40 DUAL receiver.

2.4.3 Automatic Squelch

2.5 HT 40 PRO Handheld
Transmitter

2.5.1 Controls

Refer to fig. 3 on page 2.

Note:

2.6 PT 40 PRO Bodypack
Transmitter

2.6.1 Controls

Refer to fig. 4 on page 2.

Note:

7 Carrier frequency label:

A label indicating the carrier frequency (frequencies) and approval marks of

your receiver is affixed to the rear panel of the receiver.

8 AUDIO OUT (1 per channel):

Balanced TRS 1/4" jack, adjustable from mic to line level. You can con-

nect the output either to an XLR microphone input or to an unbalanced line input on a mixer or ampli-
fier.

9 Strain relief

for the feeder cable of the supplied AC adapter.

10 DC ONLY:

Input connector for the supplied AC adapter.

The automatic squelch circuit switches the receiver off if the received signal is too weak, in order to sup-
press the related noise or the residual noise of the receiver while the transmitter is off.

The HT 40 PRO handheld transmitter operates on a single fixed, quartz stabilized frequency in the 710 MHz
to 865 MHz UHF carrier frequency range and uses an antenna integrated in the body.
The microphone element permanently mounted on the transmitter uses a high quality cardioid transduc-
er from AKG. It provides low handling noise sensitivity, high gain before feedback, and brilliant sound
quality, as well as a built-in wind and pop filter to reduce wind and breath noise.

11 On/off switch:

This slide switch provides three positions indicated in the display window:

ON:

Power to the transmitter is on.

MUTE:

The signal delivered by the microphone element is muted while power and the RF carrier fre-

quency remain on.

OFF:

Power to the transmitter is off.

12 Status LED:

Indicates the transmitter's operating status.

LED lit green:

Battery is OK.

LED lit red:

From the moment the LED changes to red, the battery capacity will provide a maximum

of two operating hours. We recommend replacing the battery with a new one as soon as possible.

If you use a rechargeable battery, the LED will change to red 15 minutes before the battery will be
dead!

13 Color code clip:

The color of this plastic clip indicates the carrier frequency of your transmitter. Re-

ceiver channels tuned to the same frequency are marked with the same color. Refer to the Manual
Supplement sheet for a color code table.
You can remove the color code clip on the HT 40 PRO and replace it with the supplied semitranspar-
ent clip.

14 Battery compartment lid:

Refer to section 3.5.

15 Carrier frequency label:

The label above the battery compartment indicates the carrier frequency and

approval marks of your transmitter.

You can use the PT 40 PRO bodypack transmitter with both dynamic microphones and condenser micro-
phones operating on a supply voltage of approx. 4 V. You may also connect an electric guitar, electric
bass, or remote keyboard.
The PT 40 PRO operates on a single fixed, quartz stabilized frequency in the 710 MHz to 865 MHz UHF
carrier frequency range.

16 On/off switch: