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John Brock Computing Services

John Brock Computing Services

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Amateur Radio Electronics

The saga of repairing a quiet CB

2020-06-252021-07-23
3 mins read
Opening the case shows a burn mark on the case inside. Just above the power transistor. So I jumped to…
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Categories
Amateur Radio

yl.beam # 80 march 2020

2020-03-062021-07-23
12 mins read
ContentsIndian YL Netyl on DX holiday in NicaraguaJa-Well-No-Fine Quartzfest report (attachment) Kristyn Weed – KR1SS & Lyn – KJ7DSE, &…
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Categories
Amateur Radio

A ‘Disaster’ on Medium Wave

2020-02-142021-07-23
2 mins read
The LMradio transmitter on 702kHz has been out of action for a whole week.As I don't have DSTV or OpenView,…
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Categories

Don’t My Years of Experience Count?

2019-07-242021-06-09
1 min read
A drop down box just would not accept "retired" or "retired Engineer". Bah! Humbug! I could have helped the youngster…
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Categories

yl.beam #72 July 2019

2019-07-032021-06-09
11 mins read
ContentsSilent KeyMay 2019 Exam Results welcomes new YlsYL Inductees, CQ Contest Hall of Fame 2019 Australian YL receives Award Museum…
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Categories

If you were wondering why your PC is now slower than before…read on.

2019-05-232021-06-09
2 mins read
I noticed yesterday at a client's workshop that the PC now had Mcafee Anti Virus installed. As I had already…
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Categories
Electronics

What the ‘L’ !!!

2019-05-212021-07-23
1 min read
Does nobody check their copy [on the Internet]?An article I was reading last night was written by Paul O'Sullivan. Quite…
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Categories

The search for a slashed zero

2019-03-272021-06-09
2 mins read
The session last night was about 'Modulation Methods' and 'Frequency Translation'. So what I wanted to get over to the…
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Categories
Amateur Radio

Yes! Finally a Geo-Stationary Amateur Radio Satellite

2019-03-192021-07-23
2 mins read
Just saw this on Hackaday. Es’hail-2: Hams Get Their First Geosynchronous Repeater Now where do I get a transmitter for 2.4GHz?…
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Categories

Curing the network scanning ‘issue’

2018-11-232021-06-09
2 mins read
I used to scan a lot of magazines...It used to be so easy. A simple USB scanner which took its…
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John Brock Computing Services © 2020 All Rights Reserved.

John Brock Computing Services © 2020 All Rights Reserved.