background image

MFJ-4724 Desktop/Remote Antenna/Transceiver Switch 

Instruction Manual

 

 
 
 

 
TECHNICAL ASSISTANCE 

 

If you have any problem with this unit first check the appropriate section of this 
manual.  If the manual does not reference your problem or reading the manual 
does not solve your problem, you may call 

MFJ Technical Service

 at 

662-323-

0549

 or the 

MFJ Factory

 at 

662-323-5869

.  You will be best helped if you have 

your unit, manual and all information on your station handy so you can answer 
any questions the technicians may ask. 
 
You can also send questions by mail to MFJ Enterprises, Inc., 300 Industrial Park 
Road, Starkville, MS 39759; by Facsimile (FAX) to 662-323-6551; or by email to 
[email protected].  Send a complete description of your problem, an 
explanation of exactly how you are using your unit, and a complete description of 
your station. 
 
 

NOTES 

 

Содержание MFJ-4724

Страница 1: ... unused inputs are grounded You can connect a sense line to your transceiver so when it s off all inputs are automatically grounded The MFJ 4724 will work well in nearly any system requiring switching of coaxial lines especially those requiring good quality 50 ohm RF switches so you can select one of four radios to one feedline or one of four antennas to a radio MFJ 4724 Desktop Remote Antenna Swi...

Страница 2: ... 3 5 1 0 1 0 1 0 1 0 7 1 1 0 1 0 1 0 1 0 14 1 1 1 1 0 1 0 1 1 21 0 1 1 1 1 1 1 1 1 29 7 1 1 1 1 1 1 1 1 54 0 1 8 1 5 1 5 1 8 150 0 1 7 1 5 1 5 1 7 Table 2 SWR for each Transceiver Connection on Selected Frequencies Tables 1 2 show the SWR for each Antenna and Transceiver Connection To determine the best Antenna and Transceiver combination for your particular frequency simply choose the connections...

Страница 3: ...iver Switch using a RCA plug so when your Transceiver is off all inputs are automatically grounded You may also connect the Antenna Transceiver Switch to your power supply using a RCA plug so when you turn off the power supply all inputs are automatically grounded 7 If you are using the MFJ 4724RC Remote Control connect the RJ 45 modular jack from the ANTENNA jack on the Remote Control to the ANTE...

Страница 4: ...d on the front of the control panel and a space is provided to pencil in the designation for each antenna Once the antenna or transmitter is selected you may transmit into the selected antenna 3 If you are using the MFJ 4724RC Remote Control turn the Selector Knob on the MFJ 4724 to the OFF Remote position a Connect the 2 1mm plug DC power supply and the RJ 45 modular jack to the Remote Control b ...

Страница 5: ... 323 0549 or the MFJ Factory at 662 323 5869 You will be best helped if you have your unit manual and all information on your station handy so you can answer any questions the technicians may ask You can also send questions by mail to MFJ Enterprises Inc 300 Industrial Park Road Starkville MS 39759 by Facsimile FAX to 662 323 6551 or by email to techinfo mfjenterprises com Send a complete descript...

Отзывы: