[Amps] Mirage amp identification HELP

[kenw2dtc]

" There is one small label across the back plate the says FREQ. 70CM 2W-20W"




Your friend may have the D-15-N 420-450 MHz AMPLIFIER

The MIRAGE D-15-N represents the latest in 440 MHz Power Amplifiers. It

incorporates features that make it the most versatile and useful amplifier 
available today.

The D-15-N will amplify FM, SSB, and ATV signals.

SPECIFICATIONS

FREQUENCY RANGE.................... 420-450 MHz

POWER............................................. INPUT: 0.1 - 2 Watts (2 
Watts max.)

OUTPUT: 18 Watts or more for 2 Watts input -

intermittent duty cycle

MODES............................................. FM, SSB, CW, and ATV

POWER IN........................................ 1.5 1.0 0.75 0.5 0.25

POWER OUT....................................18 15 13 10 6

DC POWER ...................................... 13.6 VDC at 3 Amps nominal

FUSE................................................. 5 amps

IMPENDANCE................................. 50 Ohm input and output

SIZE................................................... 7-1/4" x 3-1/2" x 2"

WEIGHT........................................... 1.5 lbs.

INSTALLATION

The D-15-N may be mounted by using the optional brackets. The D-15-N must 
have

adequate ventilation around the heat sink. Use of #10 or larger wire to 
connect the D-15-

N to the battery is recommended. Use good quality 50 Ohm coax, between the 
radio and

the D-15-N. RG-8U or the equivalent should be used between the D-15-N and 
the

antenna. The antenna should be matched to better than 1.5:1 for the best 
performance.

SWR less than 3:1 will degrade system performance. SWR greater than 3:1 may 
cause

damage to the amplifier VOIDING ANY WARRANTY.

FRONT PANEL FUNCTIONS

POWER - ON/OFF ........................... This switch turns the power 
amplifier ON and OFF.

SSB/FM............................................. Selects the relay time 
delay for the mode of

operation. In either the SSB or FM position, the

amplifier is still biased for linear operation.

D-15-N Instruction Manual 420-450 MHz Amplifier

2

REAR PANEL FUNCTIONS

"INPUT"............................................ This connects to the 
transmitter or transceiver.

"OUTPUT"........................................ This connects to the 
antenna.

PRECAUTIONS

HEAT SINK TEMPERATURE........ The D-15-N must be mounted where air can

circulate over the heat sink.

INPUT POWER................................ Input power should not exceed 2 
Watts. Higher

power than this may cause failure of the input

transistor. This will VOID ANY WARRANTY.

INTERNAL ADJUSTMENTS

"SSB DELAY".................................. This allows the relay delay to 
be adjusted to any

desired delay. Access to this adjustment is through

the hole in the left side of the cover. Use a small

screwdriver to adjust the control.

FUSE................................................. A 5 Amp fuse is 
located in the power lead. Should

the fuse "blow," determine the cause, and use the

exact type in the unit as a replacement.

IN CASE OF DIFFICULTY

1. Check for loose antenna or B+ connections.

2 Check SWR of antenna.

3. Look for bad or lossy coax.

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 your problem is not solved 
by reading

the manual you may call MIRAGE at 601-323-8287. 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 MIRAGE, 921 HWY 25 South, Starkville, 
MS

39759 or by Fax to 601-323-6551. Send a complete description of your 
problem, an

explanation of exactly how you are using your unit, and a complete 
description of your

station.

73,
Ken W2DTC