Linear Amplifier Connection; Ptt Out; Linear Amplifier Keying Isolation Adapters; Alc - Apache Labs ANAN-7000DLE MKII User Manual

6. Linear Amplifier connection

PTT Out

Most modern Linear Amplifiers have a connection for keying the amplifier. The radio includes a back panel RCA
connection for this purpose.
The PTT Out feature is best used to switch 25vdc and 1A. Exceeding these values may damage the PTT
OUTPUT circuit.
How to test your PTT Linear Amplifier circuit BEFORE connecting your Apache Transceiver.
Power your Linear, connect the control cable to your linear but do not connect the other end to your
Apache Transceiver
Using a DC Voltmeter, measure the voltage between the center pin and the outer connection of the
cable. This must be less than 25vdc.
Connect a DC Ammeter between the center pin and the exciter connection of the cable. This should
ACTIVATE the Linear Amplifier and give you a clear measurement of the current requirements. The
ANAN-7000DLE PTT circuit should not draw more than 1A.
If either of these values are out of the required range, then use an external keying interface. There are
many keying interfaces available from many sources such as MFJ, Elecraft, DX Engineering.
Important: Connecting a Linear Amplifier that does not meet the above voltage and current
requirements is likely to cause damage to the Apache Transceiver linear switching transistor and
extreme cases, serious damage to other parts. Damage to the radio caused in this manner is not
covered by Warranty.

Linear Amplifier Keying ISOLATION adapters

http://www.dxengineering.com/search/product-line/kd9sv-products-sv-kr-keying-relays
http://www.ameritron.com/Product.php?productid=ARB-704
http://www.sultantronics.com/product.html

ALC

The 7000DLE does not offer ALC control for an external amplifier.
Copyright Apache Labs © page 38 26 February 2019