Midland Sp-400 Transceiver Users Guide

							
SP-400 Series User’s Guide  
3. Any accessory should be of high quality suitable for 
professional use. 
! Please do not 
connect any 
accessory if 
you are unsure 
it meets the 
requirements 
listed. You 
could damage 
your radio. 
 
 Please consult your dealer or communications supplier 
for compatible accessories for your SP-400 series radio. 
Recommended accessories 
Antennas: 
ACC-101VLB VHF Antenna, 150-162 MHz ACC-101VB VHF Antenna, 162-174 MHz ACC-104UW UHF Antenna, 440-470 MHz 
Battery: 
18-B02 1300 mAH, NiMH 
Chargers: 
ACC-470 Rapid rate charger (requires ACC-476 cup) ACC-480 Standard rate charger (requires ACC-476 cup) ACC-476 Charger cup for 18-B02 battery 
Audio: 
QPA-1421 Speaker microphone 70-M45WP Weatherproof speaker microphone 
Carrying: 
81-BC1 Replacement belt clip QPA-1491 Leather case QPA-1495 Nylon case 
© 2005, Midland Radio Corporation 31  
						

							
 SP-400 Series User’s Guide 
Quick Reference 
Controls function table 
Control Operation Function 
On/off knob Turn clockwise past detent Turns the radio on 
On/off knob Turned further clockwise Increases the speaker volume 
Channel knob Rotated while scan is off Selects channel of operation 
Channel knob Rotated while scanning May select the scan transmit channel, as programmed 
PTT button Pressed while scan is off Transmits on selected channel 
PTT button Pressed while scanning Transmits on the scan transmit channel, as programmed 
Upper function button Pressed < two seconds Monitor on 
Upper function button Released in < two seconds Monitor off 
Upper function button Pressed > two seconds Latches the monitor on/off 
Upper function button Pressed while transmitting Sends Call 1, if programmed 
Upper function button Pressed and released while scan is holding Nuisance channel delete 
Upper function button Pressed while radio is turned on Places radio in program mode 
Lower function button Pressed and released Toggles scan on/off 
Lower function button Pressed > two seconds while scan is off Toggles channel in or out of scan list 
Lower function button Pressed when radio is turned on Toggles scrambler on/off, if enabled 
Lower function button Pressed while transmitting Sends Call 2, if programmed 
Lower + Upper function buttons Pressed and released while VOX enabled Toggles VOX sensitivity 
Lower + Upper function buttons Pressed > two seconds Sends emergency call, if programmed 
Lower + Upper function buttons Pressed when radio is turned on Toggles VOX mode on/off, if enabled 
32 © 2005, Midland Radio Corporation  
						

							
SP-400 Series User’s Guide  
Status LED table 
Indication Status 
None while PTT pressed (see also Activating VOX) Timeout timer or penalty active 
Steady red while PTT pressed Transmitting 
Continuous red flash while PTT pressed No TX, very low battery voltage 
Single red flash in standby mode (repeated every five seconds) Low battery voltage 
Steady green in receive mode Carrier present or monitor on 
Continuous green flash in receive or standby mode 2-tone/selective call decoded 
Single green flash at power-on Self-test passed 
Steady amber in receive mode CTCSS/DCS valid or monitor on 
Single amber flash in standby mode (repeated every five seconds) Scan mode active 
Double amber flash in standby mode (repeated every five seconds) Scrambler active 
Triple amber flash in standby mode (repeated every five seconds) Scan mode and scrambler active 
 
© 2005, Midland Radio Corporation 33  
						

							
 SP-400 Series User’s Guide 
Specifications 
General specifications SP-410 / 430 (VHF) SP-420 / 440 (UHF) 
Frequency range 148-174 MHz 440-470 MHz 
FCC ID number MMA80151 MMASP-440 
FCC type acceptance Part 90 Part 90, 95 
Maximum number of channels 4/16 4/16 
Channel spacing 12.5/25 KHz 12.5/25 KHz 
Channel stepping 5/6.25/7.5 KHz 5/6.25 KHz 
CTCSS/DCS per channel 47 CTCSS/104 DCS 47 CTCSS/104 DCS 
Battery 7.2 Vdc 1300 mAH 7.2 Vdc 1300 mAH 
 5-5-90 duty cycle @ 4/5 Watts 8.4 hrs 8.4 hrs 
 5-5-90 duty cycle @ 1 Watt 13.1 hrs 12.2 hrs 
MIL spec 810E, shock and vibration 810E, shock and vibration 
Size (HxWxD) 5.75”x2.8”x1.5” 5.75”x2.8”x1.5” 
Weight 13 oz. 13 oz. 
EIA/TIA-603 receiver specs   
Frequency stability ±2.5 ppm (-30° to +60° C) ±2.5 ppm (-30° to +60° C) 
12 dB SINAD sensitivity 0.25 µV 0.3 µV 
Selectivity 75 dB WB/65 dB NB 70 dB WB/65 dB NB 
Intermodulation rejection 75 dB 70 dB 
Spurious rejection 80 dB 70 dB 
Acceptable radio freq displacement ±2 KHz WB/±1 KHz NB ±2 KHz WB/±1 KHz NB 
Squelch sensitivity 
						

							
SP-400 Series User’s Guide  
Warranty Statement 
Midland Radio Corporation (herein, Midland) warrants each new radio product manufactured or supplied by it to be free from defects in material and workmanship under normal use and service for a period listed below, provided that the user has complied with the requirements stated herein. 
The Warranty period begins on the date of purchase from an Authorized Midland Sales and Service Outlet. This Warranty is offered to the original end user and is not assignable or transferable. Midland is not responsible for any ancillary equipment attached to or used in conjunction with Midland products. 
Midland offers to the original end user a Two (2) Year Limited Warranty on Midland Business and Industrial radio products. Accessories carry a One (1) Year Limited Warranty. 
During this period, if the product fails to function under normal use because of manufacturing defect(s) or workmanship, it should be returned to the Authorized Midland Sales and Service Outlet from which it was purchased. The Sales and Service Outlet will repair the product or return the product for repair to Midland or its Authorized Repair Depot. The user is responsible for the payment of any charges or expenses incurred for the removal of the defective product from the vehicle or other site of its use; for the transportation of the product to the Sales and Service Outlet; for the return of the repaired / replacement product to the site of its use and for the reinstallation of the product. 
Midland shall have no obligation to make repairs or to cause replacement required, which results from normal wear and tear or is necessitated in whole or in part by catastrophe, fault or negligence of the user, improper or unauthorized alterations or repairs to the Product, incorrect wiring, use of the Product in a manner for which it was not designed or by causes external to the Product. This Warranty is void if the product serial number is altered, defaced or removed. 
Midland’s sole obligation hereunder shall be to replace or repair the Product covered in this Warranty. Replacement, at Midland’s option, may include a similar or higher-featured product. Repair may include the replacement of parts or boards with functionally equivalent reconditioned or new parts or boards. Replaced parts, accessories, batteries or boards are warranted for the balance of the original time period. All replaced parts, accessories, batteries or boards become the property of Midland. 
THE EXPRESS WARRANTIES CONTAINED HEREIN ARE IN LIEU OF ALL OTHER WARRANTIES, EITHER EXPRESSED OR IMPLIED OR STATUTORY, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 
FOR ANY PRODUCT WHICH DOES NOT COMPLY WITH THE WARRANTY SPECIFIED, THE SOLE REMEDY WILL BE REPAIR OR REPLACEMENT. IN NO EVENT WILL MIDLAND BE LIABLE TO THE BUYER OR ITS CUSTOMERS FOR ANY DAMAGES, INCLUDING ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES, OR FOR THE LOSS OF PROFIT, REVENUE OR DATA ARISING OUT OF THE USE OF OR THE INABILITY TO USE THE PRODUCT. 
This warranty is void for sales and deliveries outside of the U. S. A. and Canada. 
© 2005, Midland Radio Corporation 35  
						

							
 
 
 
 This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. 
 This radio operates in FCC regulated frequency bands. All radios must be licensed by the FCC before use. Because this radio contains a transmitter, Federal law prohibits unauthorized use or adjustments of this radio. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 5900 PARRETTA DRIVE, KANSAS CITY, MISSOURI, 64120 PHONE: (816) 241-8500, FAX: (816) 241-5713 
www.midlandradio.com 
Revised June 2005 Printed in Thailand