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AT Sprint 3B
KD1JV Designs AT Sprint 3B - User Manual
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The
A
T
Sprint 3B
A very small, very effective,
6 band HF CW rig
“DIGITAL READY”
Operation and Assembly Manual for
version 3B.1
By KD1JV Designs
Steven Weber
633 Champlain St
Berlin, NH 03570
kd1jv@moose.ncia.net
http://kd1jv.qrpradio.com
1
2
Table of Contents
Main Page
Table of Contents
2
Basic Operation
4
Turning the Rig on and off
4
Band Selection and Power up
4
Control Switches
4
Frequency Tuning
4
Split Modes
5
Frequency Annunciation While in Split Modes
5
Menu
5
Quick Selections
5
DFE Mode
5
Tune Mode
6
Battery Voltage
6
MENU Switch Only Selected Functions
6
Frequency Readout
6
S: Selecting Keyer Code Speed
6
M: Keyer Memory Entry
7
Sending Messages
7
D: Digital Modes
8
P: Program User Preferences
8
A: Alternative Paddle
9
Assembly
11
Reference Pictures of the Front and Back Sides of Completed Board
13
Overall Placement Diagrams
14
Parts Check List
15
Resistors
16
Capacitors
18
Semiconductors
19
Through Hole Parts
21
The SMT LED Display Should be Soldered down First
21
Filter Boards
22
Check out and Calibration
23
Reference Oscillator Frequency Calibration
23
Local Oscillator Frequency Trim
24
Band Filter Test and Adjustment
24
Troubleshooting
26
Specific Problems
26
IC Voltage Tables: Receive Mode
27
Schematics
28
Theory of Operation
30
Controller
30
Dds
30
Receiver
30
Transmitter
31
Digital Mode Operation
32
Entering ATS3-B into Digital Mode Operation
32
Running Pocketdigi
32
Calibration
33
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KD1JV Designs AT Sprint 3B Specifications
General
Brand
KD1JV Designs
Model
AT Sprint 3B
Category
Transceiver
Language
English
Need help?
General
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