RS Components 245-146 Quick Manual

Wireless (Radio) Microphone
Stock No. 245-146 (173.8MHz)
Stock No. 245-152 (175.0MHz)
Figure 1
3
Observe polarity of battery connection
for alternative style of contacts.
A Hi-Band VHF/FM radio transmitter/receiver system
incorporating the renowned Shure SM58 hand held
microphone eliminating the need for trailing audio leads.
Available on two independent broadcasting channels.
Approved for use in the UK without a broadcasting licence
to DTI specification MPT1311, certificate no. RTD 3407.
(The frequency range allocated is specifically for mobile
radio microphones).
Contents:
¥
Trantec radio microphone/transmitter incorporating
Shure SM58 microphone capsule.
¥
Trantec receiver unit.
¥
Receiver aerial.
¥
DC power supply.
¥
PP3 9V alkaline battery.

Microphone with built-in transmitter

1. Unscrew sleeve in centre of microphone barrel.
2. Check stated frequency matches receiver unit and
case label. Insert 9V PP3 Alkaline battery (supplied)
observing polarity. WARNING: Considerable damage
may be caused if the battery is fitted the wrong way.
(Replacement battery RS stock no. 591-792).
3a. Recessed on/off switch.
3b. Recessed battery status indicator.
-
1
+
R T D 3 4 0 7
MODEL
-
FREQ
SERIAL NO
+
OBSERVE POLARITY
9V ALKALINE ONLY
MN1604 - 6LF22 - 6LR61

Transmitter specification

Type:
RF bandwidth:
Frequency stability:
RF Power output:
FM deviation:
Audio frequency response:
Microphone specification:
Battery life:
Battery type:
Current consumption:
Range:
Audio distortion:
Crystal controlled wide
band VHF/FM 173.8MHz
(RS stock no. 245-146)
175.0MHz
(RS stock no. 245-152)
Less than 150kHz
Less than 0.005%
2mW erp
Typ 30kHz
30Hz to 20kHz within 3dB
Shure SM58
10-12 hours
9V alkaline
(RS stock no. 591-792)
28mA typ.
Typ. 100 metres
Less than 0.5%