Description of controls, Maxon, Maxon sp-300 hand held – Midland Radio SP-300 User Manual
Page 11

MAXON
SP-300 HAND HELD
Page -8-
May 2001
The controls, indicators and antenna connections on the VHF and UHF Scanning Handheld Series radios are all located on the
top panel. The accessories socket is located on the radio chassis right hand side. The monitor and PTT buttons are located on
the radio chassis left hand side.
DESCRIPTION OF CONTROLS
ITEM
DESCRIPTION
1. Antenna Connector
1/4" UNEF socket
2. 4 Channel Select Switch
Rotary switch, used to select one of four and to engage in scanning function
3. 16 Channel Select Switch
Rotary switch, used to select one of sixteen and to engage in scanning function
4. Status Indicator (busy TX/BT)
Tri-colored LED indicator
5. ON/OFF Volume Control
Main power switch and volume control. Fully counter-clockwise is OFF position
6. Battery Lock
Used to lock the battery in place
7. Push-To-Talk Button
Push to talk, release to listen
8. Monitor Button
When pressed, monitors the chosen channel
Used for controlling installed external option
9. Option
10. Speaker
Sound reception
11. Microphone
Sound transmission
12. External Speaker
Socket used for external microphone with speaker
13. Belt Clip
Belt Clip
14. Battery
Power Supply
15. Battery Charger Contacts
Contacts used for charging battery
16. VHF Antenna
Antenna
17. UHF Antenna
Antenna
1
9
8
7
10
12
13
14
15
11
2
3 4
5
6
16
17
ANT
CH
VOL
1
4
7
11
13
16
ANT
CH
VOL
4
3
2
1
maxon
CON701 - Pin 1
1
2
3
4
5
6
7
8
9
10
11
12
Data
Clock
N/C
+7.5V
N/C
N/C
Gnd
Mic+
N/C
Int_Spkr_Mic_Dsbl
Spkr+
N/C
Pin
Function
CON701 Pinouts