IFR 2945 Training

1
IFR 2945 Training

• Mike Fortna

2
Front Panel Controls
3
Front Panel RF I/O
10 dBm (Protected to 5 Watts) Input Only
7 dBm / -115 dBm (Protected to 5 Watts) Output
Only
RF/IO 50 Watts Cont. Input 150 Watts Duty
Cycled -21 to -141 dBm Output
SELECT
4
Front Panel Audio I/O
AC DC
AC/DC Coupling Scope / DVM
AF GEN 1 and AF GEN2 Output
AF Input Scope / DVM Distortion / SINAD
Microphone Directional Power
5
Rear Panel Controls
6
Help / Setup Screen
HELP/ SETUP
7
SELF TEST Screen
8
Setup Page 2
9
Setup Page 3
10
Transmitter Test Screen
Function Controls
RF GEN ON/OFF
Measurement Panel
Control Panel
11
Frequency Controls
Tunes to TX Frequency (BB Power Meter Only)
Lock TX Frequency
Assign TX Frequency to RX Frequency
12
Power Measurement Functions
TX Test
BB / NB Power Meter Mode
13
Directional Power Meter
Antenna or Dummy Load
Directional Coupler
Transmitter
14
Transmitter Harmonics
TX Test
15
Harmonic Analysis
16
Transmitter Profile
TX Test
17
Transient Analysis
18
Modulation Meter Controls
TX Test
19
Modulation Meter Filtering
TX Test
(RateDeviation)2
20
Audio Generator Controls
TX Test
FREQ
LEVEL
INC
ON OFF
FREQ
1
kHz


LEVEL
100.0
mV


21
Tone Decoding
TX Test
22
Audio Routing
23
Sequential Tone Decoder
24
DCS Decoder
CTCSS is Encode Only Use AF Counter for CTCSS
Code Frequency
25
DTMF Decoder
26
POCSAG Decoder (Optional)
27
Scope / Bar Graph Displays
TX Test
28
Transmitter Interconnect
29
Transmitter Test (PL Tone)
01
MEM
Recall Factory Defaults.
SELECT
Repeat until both TR Lights are on.
Ready to find Transmitter Frequency.
If Frequency is known.
TX FREQ
Auto Tune
TX Test
RF GEN OFF
TX Test
TX FREQ
151.625
MHz
Key Transmitter
TX FREQ
RXTX
Lock in Frequency then set Generator to Match.
AF Filter
300 Hz LP
Mod Meter
TX Test
Set Modulation Meter to measure PL Tone.
TX Frequency TX Output Power TX PL Tone
Frequency TX PL Tone Deviation
30
Transmitter Test (PL Tone)
Scope /Bar
Display Scope and set for 200 Hz/Div at 10 ms /
Div Sweep Rate
Store Setting
03
MEM
Store this setup into Location 03
Label as TX PL
31
Transmitter Test (TX Audio)
TX Test
Mod Meter
AF Filter
0.3 to 3.4 kHz
Filter out Sub Audible Tone / Pass Voice
Frequencies.
TX Test
Scope /Bar
Adjust Scope Vertical for 2 kHz/Div.
Adjust Scope Horizontal for 1 ms/Div.
Connect AF GEN OUT to TX Audio Input
Key Transmitter
TX Test
Audio Gen
1
FREQ
kHz
ON OFF
Set ON / OFF to ON
LEVEL
Use Knob to adjust level until 3 kHz transmitter
deviation is obtained.
TX Test
Mod Meter
Dist /S-N
Distn
Turn on Distortion Meter.
Store Setting
04
MEM
Store this setup into Location 04
Label as TX Audio
32
Transmitter Test (TX Audio)
33
Receiver Test Screen
Function Controls
Measurement Panel
Control Panel
34
Set the Generator Frequency and Level
RX Test
RF GEN
151.625
FREQ
MHz
Set the RF Generator Frequency
LEVEL
-47
dBm
Set the RF Generator Output Level
ON OFF
Set ON / OFF to ON
35
Set Internal Modulation
RX Test
Mod Gen
1
Gen 1/ Gen 2
Set Mod Gen 1 for 1 kHz Tone Frequency
FREQ
kHz
3
LEVEL
kHz
Set Mod Gen 1 for 3 kHz Deviation
ON OFF
Set ON / OFF to ON
67
Gen 1/ Gen 2
Set Mod Gen 2 for 67 Hz Tone Frequency
FREQ
Hz
.5
LEVEL
kHz
Set Mod Gen 1 for 500 Hz Deviation
ON OFF
Set ON / OFF to ON
Sine / Square
Lock Mod Levels
Use Pre-Emphasis Filter
36
Using External Modulation
RX Test
Mod Gen
3
Ext Mod
kHz
Set External Mod Level to 3 kHz Deviation
MIC
Set Modulation Source to Microphone
ON OFF
Set ON / OFF to ON
37
Condition Audio Input
External Audio Input from RX under test.
38
Add Distortion / SINAD or S/N
39
Tone Encoder
40
Encoding Tones
ON OFF
Set ON / OFF to ON
Use MOD GEN 2 Level Control
41
DX Test
View both RX Test and TX Test controls
42
Spectrum Analyzer
43
Spectrum Analyzer Controls
Gain and Attenuation control
44
Spectrum Analyzer Marker
Mkr / dMkr
Turns Marker On
Mkr / dMkr
Edit Marker Position
Delta Maker (From Center Line)
Mkr / dMkr
Peak Find
Moves Marker to highest Peak
Moves Marker Frequency to Center Frequency
Marker to Ref
45
Tracking Generator Controls
46
Look and Listen
Listen to Audio while viewing Spectrum Analyzer
Image
47
Frequency and Span
Enter Frequency and Span
Enter Start and Stop Frequency
48
Audio Test Screen
49
Thank you for attending!