M0DTS.co.uk

20/08/99 VLF Receiver
05/01/22 IR Beacon
17/10/21 VLF Log
20/08/21 VLF Rx Info
17/08/21 VLF Tx Info
06/01/20 NLOS Part6 - Tests 281219
06/01/20 NLOS Part5 - Tests 231219
06/01/20 NLOS Part4 - Tests 211219
24/12/19 NLOS Part3 - Tests 151219
24/12/19 NLOS Part2 - Rx
24/12/19 NLOS Part1 - Tx
24/12/19 NLOS
20/06/19 IC9700 Send Splitter
12/01/19 71MHz DATV Amplifier
25/07/18 77GHz Doppler Module - Part2
13/04/18 DSN Reception April 2018
22/03/18 DSN Reception March 2018
07/01/18 12:6 Audio Mixer - Testing
02/01/18 12:6 Audio Mixer
16/08/17 77GHz Doppler Module
14/08/17 DSG 13Z Lathe
02/07/17 134GHz Multiplier Block
21/05/17 Microsource YIG Synth
13/05/17 Transfer Relay 24v to 12v
13/02/17 Chirp Tx With Red Pitaya - 3
27/01/17 Chirp Tx With Red Pitaya - 2
23/12/16 Tropo Dec 2016
03/12/16 11km on 134GHz
11/11/16 Improved 134GHz Rx
04/11/16 GB3KM Waterfall Display
14/10/16 146MHz Digital Pre Distortion Tests
09/09/16 Boxing up the 134GHz Gear
09/09/16 Getting started on 134GHz
11/08/16 Gigawave 6cm ATV Tx
17/07/16 ADF4252 Elcom Code & 24GHz Beacon
29/06/16 Eshailsat Tx and Rx ideas
08/05/16 Symmetricom 10MHz GPSDO
20/04/16 RTLSDR Si5351A reference
22/03/16 Basic Verilog Code De0Nano
08/03/16 Chirp Tx with Red Pitaya - 1
07/02/16 3m Dish Refurb
07/02/16 Detecting a Pulsar at 1420MHz?
20/09/15 DSP#3 Weaver SSB Demod
15/09/15 DSP#2 Decimating FIR
15/09/15 DSP#1 IQ Mixer
15/09/15 DSP#0 Learning DSP!
06/09/15 146MHz RD70HVF1 Amp
26/07/15 Chirp Radar Links
03/04/15 6m Chirp Beacon Info
14/02/15 146MHz DATV 2-way 50km
20/01/15 146MHz DATV 2-way 28km
20/01/15 146MHz RD06+RD15 Amp
03/01/15 146MHz Amp Tests
01/01/15 146MHz DATV Tests
19/10/14 KM Logic Re-Design
05/10/14 Broadband-Hamnet
29/08/14 Live Geiger Counter
27/08/14 Material absorbtion tests
24/08/14 Geiger Counter Setup
24/08/14 Useful links Radioactivity
14/08/14 Pulsed Radar Tests
14/08/14 Chirp Radar Tests
21/07/14 GB3MAN 24GHz Reception2
26/06/14 GB3MAN 24GHz Reception
19/06/14 ATV Dx Gallery
16/06/14 Live Weather
28/05/14 CNC G-Code Simulator
20/05/14 Arduino -1-wire weather
01/01/14 117km Lightwave QSO!
27/12/13 F1EHN Tracker prog
16/12/13 DL0SHF EME on 10GHz
10/12/13 Simple FFT from rtlsdr in C
10/12/13 Simple Framebuffer Write in C
01/12/13 MMDS Converter on ATV
23/11/13 MK808/PVRUSB2/DigiLite Without Controller
17/11/13 MK808/PVRUSB2/DigiLite
05/11/13 DVB-S USB rx
19/10/13 Lightning but a bit too close!
15/10/13 Nice way of explaining IQ Signals
04/10/13 Building new kernel for MK808
29/09/13 3.4GHz Alford Slot
25/09/13 GB3KM Website
22/09/13 GB3KM streaming with ffmpeg & Gallery
12/09/13 Ubuntu Nvidea Screen res
06/09/13 Elcom Synths on 9GHz
05/09/13 LM2596 Negative supply mod
22/08/13 22-25GHz Amplifier
10/08/13 24GHz LNA box
01/08/13 Most Viewed
31/07/13 CNC stepper driver box
09/07/13 Ka band LNB on 24GHz?
14/06/13 24GHz Alcatel Tx/Rx Module
02/06/13 Chirp Sounders
02/06/13 Hydrogen Line 1420MHz
02/06/13 1st 8.4GHz Reception
02/06/13 8.4GHz Rx Equipment
02/06/13 IPTV
02/06/13 436MHz DATV Up-Converter
10/05/13 Portable Amplifier box ***
27/03/13 DigiLite
27/03/13 Analogue vs Digital
27/03/13 Weather Sat Images
27/03/13 Spectrian 180W Amp ***
27/03/13 Delayed muting ****
27/03/13 Realtek SDR dongle
25/03/13 Simple Horn
25/03/13 Planets
25/03/13 STARRS Comet
25/03/13 70cm QRM
25/03/13 Nokia Amplifier Info
25/03/13 EME in 2012
25/03/13 Current Activity
25/03/13 Activities
24/03/13 Activities
24/03/13 6m Chirp Beacon Idea
24/03/13 Activities
24/03/13 HF Activity
24/03/13 3.4GHz Airspan Board mods
24/03/13 ATV Equipment Links
24/03/13 13cm 200mW Comtech info
24/03/13 23cm ATV Filter
24/03/13 G6ALU Caption Generator
23/03/13 Intro
23/03/13 Digilite Tx Spectrum
23/03/13 10GHz EyalGal unit
31/01/13 Some photos
25/10/12 500W+ 1296MHZ Amp Project
10/09/12 ATV Contest 2012 ****
29/05/12 Tropo May 2012
17/09/11 ATV using LED Tx
11/09/11 ATV Contest 2011 ****
28/03/11 Archive3 - DATV Software
27/03/11 Archive2 - DATV Transmitter
27/03/11 Archive1 - DATV System info
23/10/10 ATV over the Pennines!
23/10/10 Tropo October 2010
09/09/10 ATV Contest 2010 ****
25/03/10 10GHz Narrowband
10/09/09 ATV Contest 2009 ****
23/03/09 10GHz ATV dx 115km
21/03/09 Repeater Contest 2009
25/08/08 EME in 2008
08/06/08 Summer Fun ATV 2008
25/03/08 Tropo Dx Log*************
25/10/07 EME in 2007
24/09/07 23cm Tx
09/09/07 ATV Contest 2007
22/12/06 Tropo Dec 2006
10/09/06 ATV Contest 2006
25/08/06 EME In 2006
23/07/06 Tropo July 2006
25/05/06 1.8M EME Dish Project
23/05/06 Tropo May 2006
24/02/06 23cm DG0VE Amplifier
23/02/06 Tropo Feb 2006
24/11/05 Tropo Nov 2005
10/09/05 ATV Contest 2005
25/08/05 13cm Amplifier
13/07/05 GB3YT (YV,YX)
26/02/05 First Reception of EME on 2M
25/06/04 23cm In the beginning
25/03/00 Useful links 23cm

Spots per uW band today:
UK spotter or spotted only.

23cm

13cm

3cm

Solar data:

SFI

167

A-Index

K-Index

Exp.K

Sunspots

196

Activity

act

GMF

act

Aurora?

ArrayDate:26/04/24 Time:21:48
Temp:3C
Wind Speed:0mph
Wind Dir:90deg
Pressure:1006.17mB
Humidity:61%
Dew Point:-4.8C

I modified the German designed Laser TX to drive a 1W Golden Dragon LED.

Managed to receive my own transmission at a portable site 11km away using the German designed Photodiode Rx at 20MHz, results were not that good, sync to weak lock of the video signal.

This time i used a photomultiplier tube as the receiver and it worked much better!
The TX alignment was not optimised in beam heading because i set this before going /p!

Tx 20MHz carrier FM ATV to 1W LED and 30cm Fresnel lens.
Rx Photomultiplier tube into into a 20 > 70MHz converter, then into a Zeta 1000L sat receiver.

Optical ATV with LEDTx

Last page added:25/03/00 18:32

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