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Scanner or radio serial interface 

 

Receiver antenna selection 

 

QRP transmit antenna switch or T/R switch. 

NOTE

: If transmitting RF through the ALK-2, 

keep SWR less than 3:1 and power level no greater than 5 watts. Operation is not guaranteed 
above 30 MHz. It is recommended not to transmit RF thru the ALK-2 while also switching a 
second signal. RF isolation between the two circuits is not guaranteed. 

TECHNICAL SUPPORT 

The LDG Customer Support Center staff is ready to answer your product question by telephone 

and over the Internet. We know that you will enjoy your product even more knowing LDG is ready 
to answer your questions as the need arises.  

Visit the Support Center at: 

http://support.ldgelectronics.com

Our website links you to the on-line Customer Support Center where you can send us a 

question, do your own research in the LDG Product Knowledge Books, and read through lists of 
frequently asked product questions. LDG regularly updates on-line information so the best on-line 
support information is available all day and every day. 

The LDG website provides links to product manuals, just in case you lose this one! When you 

are thinking about the purchase of other LDG products our website also has complete product 
specifications and photographs you can use to help make your purchase decision.  Don’t forget the 
links to all of the quality LDG Dealers also ready to help you make that purchase decision. 

TWO-YEAR TRANSFERRABLE WARRANTY 

Your product is warranted against manufacturer defects in parts and labor for two full years 

from the date of purchase. This two-year warranty is also transferable. When you sell or give away 
your LDG product give the new owner a copy of the original sales receipt and the two-year warranty 
goes with the new owner. 

There is no need to complete a warranty card or to register an LDG product. Your product 

receipt establishes eligibility for warranty service so save that receipt. Send your receipt with the 
product whenever you send your product to LDG for repair. Products sent to LDG without a 
receipt are considered requests for out-of-warranty repair. 

LDG does not warranty against product damage or abuse. This means that a product failure, as 

determined by LDG, to be caused by the customer or by other natural calamity (e.g. lightning) is not 
covered under the two-year warranty. Damage can be caused by failure to heed the product’s 
published limitations and specifications or by not following good Amateur practice.  

OUT OF WARRANTY SERVICE 

Any time a product fails after the warranty, LDG wants to help you get it fixed. Send the 

product to us for repair. We will determine what needs to be done, and, based on your prior 
instruction; someone will either contact you with an estimate or fix it and contact you with a request 
to pay any repair charges. Please contact LDG if you have any questions before you send us an out-
of-warranty product for repair. 

 

PAGE 8

 

Содержание ALK-2

Страница 1: ...S MANUAL MANUAL REV A PAGE 1 LDG Electronics 1445 Parran Road St Leonard MD 20685 2903 USA Phone 410 586 2177 Fax 410 586 8475 ldg ldgelectronics com www ldgelectronics com LDG ALK 2 Two Port Audio Li...

Страница 2: ...g to know your ALK 2 4 Front Panel 4 Rear Panel 5 Pinouts 5 Block Diagram 6 Installation 7 Operation 7 Desktop Local Operation 7 Remote Operation 7 Application Information 7 Examples 7 Technical Suppo...

Страница 3: ...s home stereo audio iambic paddles straight keys linear amplifier control cables headphone audio etc 2 Connect at 12 volt power supply capable of supplying 100 mA to the 2 5 x 5 5 mm coaxial power jac...

Страница 4: ...e at least twice the length of the longest antenna transmission line or support dimension GETTING TO KNOW YOUR ALK 2 Your ALK 2 is a quality precision instrument that will give you many years of outst...

Страница 5: ...dustry standard convention for color coding The red jacks connect to the 1 8 jack s right audio channel and the white RCA jacks connect to the 1 8 jack s left audio channel One port is a common port a...

Страница 6: ...PAGE 6 For each of the three ports Port 1 Port 2 and Common the 1 8 stereo jack pinout is as follows BLOCK DIAGRAM The following is a block diagram of the ALK 2...

Страница 7: ...mode This mode uses the fact that the ALK 2 relays are non latching relays and will revert to their normally closed position when no power is applied To use remote mode push the pushbutton so that it...

Страница 8: ...Dealers also ready to help you make that purchase decision TWO YEAR TRANSFERRABLE WARRANTY Your product is warranted against manufacturer defects in parts and labor for two full years from the date o...

Страница 9: ...on the status of repairs We can only indicate the repair is in process until it ships back to you Please be assured that our staff makes every effort to complete repairs ahead of our published wait t...

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