LightTracker Plus
|
Written by hans summers |
Hits: 190
|
PTT Mod (Rev 1, 2, 3)
|
Written by hans summers |
Hits: 4269
|
QMX Rev 2 issue modification
|
Written by hans summers |
Hits: 7992
|
SMPS Step change
|
Written by hans summers |
Hits: 5162
|
LightAPRS 2
|
Written by hans summers |
Hits: 6944
|
QMX troubleshooting
|
Written by hans summers |
Hits: 9907
|
status
|
Written by hans summers |
Hits: 43422
|
QMX multi-band multi-mode transceiver
|
Written by hans summers |
Hits: 320375
|
QDX-M Digital Transceiver
|
Written by hans summers |
Hits: 62627
|
QDX troubleshooting and tweaking
|
Written by hans summers |
Hits: 14115
|
ProgRock2 - triple GPS-disciplined programmable crystal
|
Written by hans summers |
Hits: 25513
|
LightAPRS-W (+WSPR) 2.0 tracker
|
Written by hans summers |
Hits: 17353
|
QDX US shipments
|
Written by hans summers |
Hits: 15656
|
U4B - Balloon tracker
|
Written by hans summers |
Hits: 57520
|
QRP Labs U4B-28
|
Written by hans summers |
Hits: 7953
|
QCX-series AGC module
|
Written by hans summers |
Hits: 35627
|
QRP Labs U4B-27
|
Written by hans summers |
Hits: 5808
|
QRP Labs U4B-26
|
Written by hans summers |
Hits: 6090
|
QCX - uSDX
|
Written by hans summers |
Hits: 32657
|
QDX - Digital Transceiver
|
Written by hans summers |
Hits: 499121
|
QRP Labs U4B-25
|
Written by hans summers |
Hits: 12594
|
MS5351M performance
|
Written by hans summers |
Hits: 19295
|
More troubleshooting (Ron WA7GIL)
|
Written by hans summers |
Hits: 20372
|
QRP Labs U4B-23
|
Written by hans summers |
Hits: 5206
|
QRP Labs U4B-22
|
Written by hans summers |
Hits: 6837
|
August 2021 Newsletter
|
Written by hans summers |
Hits: 49166
|
QRP Labs U4B-21
|
Written by hans summers |
Hits: 7699
|
QRP Labs U4B-20
|
Written by hans summers |
Hits: 7842
|
QRP Labs U4B-19
|
Written by hans summers |
Hits: 6264
|
QRP Labs U4B-18
|
Written by hans summers |
Hits: 7865
|
Assembled kits order status
|
Written by hans summers |
Hits: 505975
|
QCX WARC Party
|
Written by hans summers |
Hits: 31356
|
QRP Labs U4B-17
|
Written by hans summers |
Hits: 8487
|
QRP Labs U4B-16
|
Written by hans summers |
Hits: 6452
|
QRP Labs U4B-15
|
Written by hans summers |
Hits: 6763
|
QRP Labs U4B-14
|
Written by hans summers |
Hits: 7271
|
Frequently Asked Questions - QCX-mini CW transceiver
|
Written by hans summers |
Hits: 15717
|
QCX-mini Dev update 6
|
Written by hans summers |
Hits: 20122
|
QRP Labs U4B-13
|
Written by hans summers |
Hits: 10183
|
QCX-mini Dev update 2
|
Written by hans summers |
Hits: 14954
|
QCX-mini Dev update 3
|
Written by hans summers |
Hits: 16946
|
QCX-mini Dev update 4
|
Written by hans summers |
Hits: 14169
|
QCX-mini Dev update 5
|
Written by hans summers |
Hits: 17527
|
QCX-mini Dev update 1
|
Written by hans summers |
Hits: 18695
|
QRP Labs U4B-12
|
Written by hans summers |
Hits: 11413
|
G7PMO-A
|
Written by hans summers |
Hits: 7301
|
QCX-mini
|
Written by hans summers |
Hits: 419974
|
QRP Labs U4B-11
|
Written by hans summers |
Hits: 13989
|
Frequently Asked Questions - QCX+ CW transceiver
|
Written by hans summers |
Hits: 12165
|
Zoom
|
Written by hans summers |
Hits: 23799
|
Expo Schedule
|
Written by hans summers |
Hits: 24875
|
2019 newsletter archive
|
Written by hans summers |
Hits: 36860
|
July 2020 Newsletter
|
Written by hans summers |
Hits: 84480
|
QCX+ new kit photos
|
Written by hans summers |
Hits: 31642
|
QRP Labs U4B-10
|
Written by hans summers |
Hits: 11325
|
QRP Labs U4B-9
|
Written by hans summers |
Hits: 14907
|
QCX+ 5W CW transceiver kit
|
Written by hans summers |
Hits: 432102
|
QRP Labs U4B-8
|
Written by hans summers |
Hits: 14773
|
QRP Labs U4B-7
|
Written by hans summers |
Hits: 13855
|
QRP Labs U4B-6
|
Written by hans summers |
Hits: 15041
|
QRP Labs U4B-5
|
Written by hans summers |
Hits: 8447
|
QRP Labs U4B-4
|
Written by hans summers |
Hits: 9260
|
QRP Labs U4B-3
|
Written by hans summers |
Hits: 8163
|
QRP Labs U4B-2
|
Written by hans summers |
Hits: 14527
|
QRP Labs U4B-1
|
Written by hans summers |
Hits: 12179
|
The definitive guide to RF Power measurement
|
Written by hans summers |
Hits: 54157
|
December 2019 Newsletter
|
Written by hans summers |
Hits: 22249
|
50W Amp enclosure
|
Written by hans summers |
Hits: 49643
|
50W Amp for QCX-series
|
Written by hans summers |
Hits: 214371
|
PTT modification
|
Written by hans summers |
Hits: 26920
|
Reduced sidetone click
|
Written by hans summers |
Hits: 14759
|
Phase noise
|
Written by hans summers |
Hits: 81703
|
QCX volume control
|
Written by hans summers |
Hits: 22785
|
LightAPRS-W (+WSPR) tracker
|
Written by hans summers |
Hits: 66404
|
DL6OW balloon STELLA22
|
Written by hans summers |
Hits: 12925
|
Pico-balloon launch by Brian N6CVO
|
Written by hans summers |
Hits: 24216
|
DL6OW balloon STELLA21
|
Written by hans summers |
Hits: 10395
|
2018 newsletter archive
|
Written by hans summers |
Hits: 39309
|
June 2019 Newsletter
|
Written by hans summers |
Hits: 30700
|
DL6OW balloon STELLA20
|
Written by hans summers |
Hits: 16034
|
QRP Labs U3B-28
|
Written by hans summers |
Hits: 11643
|
DL6OW balloon STELLA19
|
Written by hans summers |
Hits: 12884
|
Jim N2NXZ balloon U3S-33
|
Written by hans summers |
Hits: 9625
|
Dayton FDIM/hamvention 2019
|
Written by hans summers |
Hits: 24846
|
QRP Labs U3B-27
|
Written by hans summers |
Hits: 15535
|
QCX troubleshooting video
|
Written by hans summers |
Hits: 41486
|
QCX 3D Model
|
Written by hans summers |
Hits: 21374
|
May 2019 Newsletter
|
Written by hans summers |
Hits: 39959
|
Jim N2NXZ balloon U3S-32
|
Written by hans summers |
Hits: 11680
|
QRP Labs U3B-26
|
Written by hans summers |
Hits: 14081
|
QCX QRO: 50W amp
|
Written by hans summers |
Hits: 43620
|
Jim N2NXZ balloon U3S-31
|
Written by hans summers |
Hits: 9271
|
Jim N2NXZ balloon U3S-30
|
Written by hans summers |
Hits: 9640
|
Jim N2NXZ balloon U3S-29
|
Written by hans summers |
Hits: 9307
|
LightAPRS tracker
|
Written by hans summers |
Hits: 139079
|
QCX WSPR Tcvr by Maxwell W3LLA
|
Written by hans summers |
Hits: 18982
|
QCX monthly QSO Party
|
Written by hans summers |
Hits: 113571
|
QCX Serial numbers
|
Written by hans summers |
Hits: 43624
|
QRP Labs U3B-25
|
Written by hans summers |
Hits: 31057
|
DL6OW balloon STELLA15
|
Written by hans summers |
Hits: 10838
|
Jim N2NXZ balloon U3S-26
|
Written by hans summers |
Hits: 9435
|
November 2018 newsletter
|
Written by hans summers |
Hits: 27881
|
QRP Labs U3B-24
|
Written by hans summers |
Hits: 13671
|
10W HF Linear PA
|
Written by hans summers |
Hits: 215489
|
QRP Labs U3B-23
|
Written by hans summers |
Hits: 20406
|
QSX all-band all-mode transceiver
|
Written by hans summers |
Hits: 1613775
|
July 2018 newsletter
|
Written by hans summers |
Hits: 32516
|
QRP Labs U3B-22
|
Written by hans summers |
Hits: 17519
|
Jim N2NXZ balloon U3S-25
|
Written by hans summers |
Hits: 14783
|
QLG1 GPS Firmware fault, 2018
|
Written by hans summers |
Hits: 15943
|
QRP Labs U3B-21
|
Written by hans summers |
Hits: 15514
|
DL6OW balloon STELLA13
|
Written by hans summers |
Hits: 11194
|
QCX enclosure
|
Written by hans summers |
Hits: 133126
|
Dayton FDIM/hamvention 2018
|
Written by hans summers |
Hits: 27005
|
QRP Labs U3B-20
|
Written by hans summers |
Hits: 11765
|
May 2018 newsletter
|
Written by hans summers |
Hits: 20015
|
Jim N2NXZ balloon U3S-24
|
Written by hans summers |
Hits: 10869
|
QRP Labs U3B-19
|
Written by hans summers |
Hits: 11616
|
QRP Labs U3B-18
|
Written by hans summers |
Hits: 17643
|
"My Dream"
|
Written by hans summers |
Hits: 56353
|
QRP Labs U3B-17
|
Written by hans summers |
Hits: 16447
|
QRP Labs U3B-16
|
Written by hans summers |
Hits: 13464
|
QRP Labs U3B-15
|
Written by hans summers |
Hits: 13672
|
March 2018 newsletter
|
Written by hans summers |
Hits: 18547
|
Jim N2NXZ balloon U3S-23
|
Written by hans summers |
Hits: 14794
|
QRP Labs U3B-14
|
Written by hans summers |
Hits: 16746
|
2017 newsletter archive
|
Written by hans summers |
Hits: 43141
|
February 2018 newsletter
|
Written by hans summers |
Hits: 19133
|
Jim N2NXZ balloon U3S-22
|
Written by hans summers |
Hits: 22699
|
QCX Troubleshooting
|
Written by hans summers |
Hits: 111668
|
Jim N2NXZ balloon U3S-21
|
Written by hans summers |
Hits: 15084
|
Bank transfer
|
Written by hans summers |
Hits: 50028
|
BB05 by ZL1RS
|
Written by hans summers |
Hits: 19493
|
BB04 by ZL1RS
|
Written by hans summers |
Hits: 13697
|
QRP Labs U3B-13
|
Written by hans summers |
Hits: 12171
|
BB03 by ZL1RS
|
Written by hans summers |
Hits: 14641
|
DL6OW balloon STELLA10
|
Written by hans summers |
Hits: 11635
|
December 2017 newsletter
|
Written by hans summers |
Hits: 20303
|
BB02 by ZL1RS
|
Written by hans summers |
Hits: 15121
|
BB01 by ZL1RS
|
Written by hans summers |
Hits: 14504
|
Jim N2NXZ balloon U3S-20
|
Written by hans summers |
Hits: 11542
|
DL6OW balloon STELLA9
|
Written by hans summers |
Hits: 13252
|
QRP Labs U3B-12
|
Written by hans summers |
Hits: 12619
|
November 2017 newsletter
|
Written by hans summers |
Hits: 22306
|
DL6OW balloon STELLA8
|
Written by hans summers |
Hits: 14211
|
QCX modifications
|
Written by hans summers |
Hits: 111748
|
DL6OW balloon STELLA7
|
Written by hans summers |
Hits: 20563
|
QCX videos
|
Written by hans summers |
Hits: 56219
|
QCX builders' gallery
|
Written by hans summers |
Hits: 126053
|
QRP Labs U3B-11
|
Written by hans summers |
Hits: 15330
|
DL6OW balloon STELLA6
|
Written by hans summers |
Hits: 14457
|
QRP Labs U3B-10
|
Written by hans summers |
Hits: 13496
|
September 2017 newsletter
|
Written by hans summers |
Hits: 20534
|
QCX Firmware version history
|
Written by hans summers |
Hits: 111221
|
QRP Labs U3B-9
|
Written by hans summers |
Hits: 22251
|
Jim N2NXZ balloon U3S-19
|
Written by hans summers |
Hits: 12115
|
QRP Labs U3B-8
|
Written by hans summers |
Hits: 18670
|
August 2017 newsletter
|
Written by hans summers |
Hits: 21110
|
Frequently Asked Questions - QCX CW transceiver
|
Written by hans summers |
Hits: 77906
|
5W CW transceiver kit
|
Written by hans summers |
Hits: 1118645
|
QRP Labs U3B-7
|
Written by hans summers |
Hits: 24002
|
QRP Labs U3B-6
|
Written by hans summers |
Hits: 12863
|
Jim N2NXZ balloon U3S-18
|
Written by hans summers |
Hits: 15986
|
Jim N2NXZ balloon U3S-17
|
Written by hans summers |
Hits: 13426
|
Jim N2NXZ balloon U3S-16
|
Written by hans summers |
Hits: 11751
|
Jim N2NXZ balloon U3S-15
|
Written by hans summers |
Hits: 11893
|
QRP Labs U3B-5
|
Written by hans summers |
Hits: 10545
|
QRP Labs U3B-4
|
Written by hans summers |
Hits: 11238
|
QRP Labs U3B-3
|
Written by hans summers |
Hits: 10803
|
Jim N2NXZ balloon U3S-14
|
Written by hans summers |
Hits: 12976
|
Jim N2NXZ balloon U3S-13
|
Written by hans summers |
Hits: 12696
|
QRP Labs U3B-2
|
Written by hans summers |
Hits: 16294
|
June 2017 newsletter
|
Written by hans summers |
Hits: 22420
|
QRP Labs U3B-1
|
Written by hans summers |
Hits: 13801
|
VE3KCL balloon S-26
|
Written by hans summers |
Hits: 12504
|
Jim N2NXZ balloon U3S-12
|
Written by hans summers |
Hits: 13212
|
VE3KCL balloon S-25
|
Written by hans summers |
Hits: 14744
|
C3
|
Written by hans summers |
Hits: 118892
|
Jim N2NXZ balloon U3S-11
|
Written by hans summers |
Hits: 16475
|
Jim N2NXZ balloon U3S-10
|
Written by hans summers |
Hits: 16568
|
Ultimate3S 4m RxTx by Ken G4APB
|
Written by hans summers |
Hits: 17776
|
Blank box
|
Written by hans summers |
Hits: 54588
|
April 2017 newsletter
|
Written by hans summers |
Hits: 22000
|
Jim N2NXZ balloon U3S-9
|
Written by hans summers |
Hits: 12266
|
Jim N2NXZ balloon U3S-8
|
Written by hans summers |
Hits: 13817
|
VE3KCL balloon S-24
|
Written by hans summers |
Hits: 21682
|
Fleet II transatlantic sailboat crossing
|
Written by hans summers |
Hits: 56109
|
March 2017 newsletter
|
Written by hans summers |
Hits: 22598
|
2016 newsletter archive
|
Written by hans summers |
Hits: 51747
|
February 2017 newsletter
|
Written by hans summers |
Hits: 18654
|
VE3KCL balloon S-23
|
Written by hans summers |
Hits: 14655
|
VE3KCL balloon S-22
|
Written by hans summers |
Hits: 13434
|
Jim N2NXZ balloon U3S-7
|
Written by hans summers |
Hits: 21113
|
VE3KCL balloon S-21
|
Written by hans summers |
Hits: 14599
|
Ultimate3S on 222MHz
|
Written by hans summers |
Hits: 17451
|
Marcel ON7DY Tx & Rx ZL3GA
|
Written by hans summers |
Hits: 13138
|
January 2017 newsletter
|
Written by hans summers |
Hits: 21608
|
Custom case
|
Written by hans summers |
Hits: 48709
|
Clock case
|
Written by hans summers |
Hits: 65129
|
VFO/SigGen case
|
Written by hans summers |
Hits: 70987
|
5W HF PA
|
Written by hans summers |
Hits: 152315
|
Discussion group
|
Written by hans summers |
Hits: 197233
|
DL6OW balloon STELLA4
|
Written by hans summers |
Hits: 23303
|
December 2016 newsletter
|
Written by hans summers |
Hits: 22758
|
App Notes
|
Written by hans summers |
Hits: 76601
|
DL6OW balloon STELLA3
|
Written by hans summers |
Hits: 16096
|
PIC code by Russ G4SAQ
|
Written by hans summers |
Hits: 22320
|
November 2016 newsletter
|
Written by hans summers |
Hits: 22142
|
Antenna comparisons using the Ultimate3
|
Written by hans summers |
Hits: 17190
|
10MHz to 1pps divider
|
Written by hans summers |
Hits: 13715
|
DL6OW balloon STELLA2
|
Written by hans summers |
Hits: 19575
|
Clock kit
|
Written by hans summers |
Hits: 175085
|
VE3KCL balloon S-20
|
Written by hans summers |
Hits: 18047
|
VE3KCL balloon S-19
|
Written by hans summers |
Hits: 16448
|
VE3KCL balloon S-18
|
Written by hans summers |
Hits: 39320
|
October 2016 newsletter
|
Written by hans summers |
Hits: 19260
|
Jim N2NXZ balloon "The Brick"
|
Written by hans summers |
Hits: 18521
|
Jim N2NXZ balloon U3S-4
|
Written by hans summers |
Hits: 22878
|
Relay driver for Raspberry Pi etc
|
Written by hans summers |
Hits: 31128
|
Harmonic attenuation
|
Written by hans summers |
Hits: 21973
|
August 2016 newsletter
|
Written by hans summers |
Hits: 19075
|
Polyphase network module
|
Written by hans summers |
Hits: 102909
|
Receiver module
|
Written by hans summers |
Hits: 236285
|
VE3KCL balloon S-17
|
Written by hans summers |
Hits: 24680
|
VE3KCL balloon S-16
|
Written by hans summers |
Hits: 15756
|
DL6OW balloon STELLA1
|
Written by hans summers |
Hits: 32488
|
50-ohm 20W QRP HF Dummy Load
|
Written by hans summers |
Hits: 144759
|
The Circumnavigators
|
Written by hans summers |
Hits: 133283
|
VE3KCL balloon S-15
|
Written by hans summers |
Hits: 32780
|
July 2016 newsletter
|
Written by hans summers |
Hits: 17957
|
VE3KCL balloon S-14
|
Written by hans summers |
Hits: 27844
|
Balloon test 2
|
Written by hans summers |
Hits: 11338
|
VE3KCL balloon S-13
|
Written by hans summers |
Hits: 33884
|
Links
|
Written by hans summers |
Hits: 45735
|
Balloon test 1
|
Written by hans summers |
Hits: 13442
|
VE3KCL balloon S-12
|
Written by hans summers |
Hits: 32155
|
VE3KCL balloon S-11
|
Written by hans summers |
Hits: 41911
|
May 2016 newsletter
|
Written by hans summers |
Hits: 18114
|
VE3KCL balloon S-10
|
Written by hans summers |
Hits: 41297
|
Band Pass Filter kit
|
Written by hans summers |
Hits: 251871
|
April 2016 newsletter
|
Written by hans summers |
Hits: 23627
|
ProgRock - triple GPS-disciplined programmable crystal
|
Written by hans summers |
Hits: 161563
|
VE3KCL balloon S-9
|
Written by hans summers |
Hits: 73786
|
VE3KCL balloon S-8
|
Written by hans summers |
Hits: 29000
|
VE3KCL balloon S-7
|
Written by hans summers |
Hits: 30426
|
DT investigation
|
Written by hans summers |
Hits: 15845
|
QRP Labs March 2016 newsletter
|
Written by hans summers |
Hits: 18868
|
Frequently Asked Questions
|
Written by hans summers |
Hits: 75332
|
February 2016 newsletter
|
Written by hans summers |
Hits: 20865
|
Si5351A vs Crystal LO
|
Written by hans summers |
Hits: 28041
|
Bifilar and trifilar PA
|
Written by hans summers |
Hits: 39552
|
VFO/Signal Generator
|
Written by hans summers |
Hits: 294965
|
Dave GW8GLO LF U3S
|
Written by hans summers |
Hits: 23788
|
OE1CGS Arduino sketch
|
Written by hans summers |
Hits: 36811
|
Getting started guide to the U3S
|
Written by hans summers |
Hits: 39583
|
High precision OCXO U3S
|
Written by hans summers |
Hits: 19786
|
11-band U3
|
Written by hans summers |
Hits: 16454
|
U3S PA bias study
|
Written by hans summers |
Hits: 22513
|
U3 Slow-Hell settings
|
Written by hans summers |
Hits: 15944
|
VE3KCL balloon S-6
|
Written by hans summers |
Hits: 40017
|
Beware imitation products!
|
Written by hans summers |
Hits: 53583
|
Contact
|
Written by hans summers |
Hits: 67722
|
Balloon S-5 flight, narrated by Dave VE3KCL
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Written by hans summers |
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Frequency stability
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Written by hans summers |
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VE3KCL balloon S-4
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Written by hans summers |
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VE3KCL balloon S-3
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Written by hans summers |
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VE3KCL balloons
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Written by hans summers |
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VE3KCL balloon S-2
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Written by hans summers |
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Leap second 30-Jun-2015
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Written by hans summers |
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VE3KCL balloon S-1
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Written by hans summers |
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QRP Labs shop!
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Written by hans summers |
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U3 to U3S conversion
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Written by hans summers |
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A simple Amplifier for the Ultimate 3 for 136 & 472 kHz
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Written by hans summers |
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Ultimate3 6m modification
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Right-angle LCD
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Ultimate3S kit
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Ultimate3/3S QRSS/WSPR kits
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Ultimate2 QRSS kit
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Ultimate QRSS kit
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Written by hans summers |
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GPS notes
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Written by hans summers |
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