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WG3K > ANS 05.08.24 17:28l 56 Lines 3018 Bytes #135 (0) @ AMSAT
BID : ANS217.3
Read: GUEST
Subj: Wireless Technology Workshop in India
Path: IZ3LSV<DB0ERF<DK0WUE<DK0WUE<VK5RSV<VK2RZ<KC9UHI<KA1VSC<WG3K
Sent: 240805/1522Z 6874@WG3K.#SMD.MD.USA.NOAM LinBPQ6.0.24
A special workshop on ‘Wireless Technology and its Practical Solutionsâ€Ö was
conducted for Rajkot – Police Wireless Department at Gujarat (India) on
20th July 2024. The venue was the Police Training Center at Rajkot
Headquarter. It was a highly informative 3 hours session from 10:00 AM to
1:00 PM.
Regional Coordinator of AMSAT-INDIA & The Amateur Radio Society of India,
Mr. Rajesh Vagadia, VU2EXP, gave insight into various Radio Communication
protocols, types of modulation, modes & various applications used in
Amateur Radio & Police department.
*Rajesh Vagadia, VU2EXP (hamphotos.com http://hamphotos.com)*
As this workshop was targeted for 25 technical wireless officers & radio
operators, we focused on the radio communication enhancing methods,
utilizing various techniques, using different antennas for specific
applications and diagnosis of wireless setup with various measuring
instruments incl. SWR/Power Meter, NanoVNA/Antenna Analyzer. We extended a
handful of maintenance tips for Radio, Antenna, Feed line & repeaters to
optimize radio communications.
We also gave an overview of Ham Radio & its various events, Understanding
of Digital Communication, Satellite Communication, Features of newer
Digital protocol incl. DMR, D-STAR & Fusion. There was good interaction
with participants, lots of doubt & queries were cleared satisfactorily.
Good number of radio stuff was displayed incl. HTs, VHF Base Radio, IC-705
SDR HF Radio, RTL SDR Dongle, Antenna Tuner, CAT Control, Soundcard
Interface, Morse Key, CW Paddle & Keyer, CubeSat model, Balun, LNA,
SWR/Power meter, NanoVNA, Dummy load, PSU, Feed lines, EFHW Antenna,
Telescopic Antenna, Connectors, Adaptors, ARISS Awards, QSL Cards etc.,
which helped participants to view, discuss & understand our entire stuff
better.
We always give practical demos, but, here in the audience was a heavy user
of CW & RT from the police dept. We didnâ€Öt give a demo of that kind
hi..hi.., but surely gave demos of Digital Communication – sending text
messages between two VHF Setup and a second demo of sending SSTV Images
between two local vhf stations! For the audience it was interesting to
learn how we ham convert simple ASCII codes to corresponding audio
frequencies (for Digital Communication) and RGB pixel values of Image to
Slow Scan Television format to transmit & receive ‘IMAGESâ€Ö via our standard
radios! Thatâ€Ös why we proudly call Ham Radio the oldest Social Media!
It was a nice & fruitful workshop overall. I am thankful to Commissioner of
Police Rajkot Shri Brajesh Kumar Jha Sir for approval of this workshop and
Shri S K Jadeja Sir (PI Wireless) for nicely coordinating this workshop. I
am thankful to our AMSAT-INDIA & ARSI (The Amateur Radio Society of India)
for their great support and guidance to make this workshop highly
successful.
We wish Rajkot Gujarat Police will utilize the gained knowledge & implement
into the system for better productivity!
[ANS thanks Rajesh Vagadia, VU2EXP, for the above information.]
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