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» Latest member: Ytnorocl
» Forum threads: 104
» Forum posts: 256

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Latest Threads
B.A.C.A.R. 2018
Forum: KARTS General
Last Post: zs6sky
15-05-2018, 08:48 PM
» Replies: 0
» Views: 397
Hard to find Valve's and ...
Forum: KARTS Swop Shop
Last Post: zs6sky
09-05-2018, 07:51 PM
» Replies: 0
» Views: 931
Tim's Goodies for Sale
Forum: KARTS Swop Shop
Last Post: zs6sky
20-04-2018, 10:12 PM
» Replies: 1
» Views: 1,490
Its-not-real-ham-radio-by...
Forum: KARTS General
Last Post: ZS6DEZ
10-03-2018, 03:55 PM
» Replies: 0
» Views: 700
AGM 2018
Forum: KARTS Communication
Last Post: zs6sky
07-03-2018, 08:46 PM
» Replies: 1
» Views: 385
February 2018 Club Meetin...
Forum: KARTS Communication
Last Post: ZS6CDB
10-02-2018, 10:59 AM
» Replies: 0
» Views: 212
Weekly News 2018
Forum: KARTS Weekly News
Last Post: ZS6NJJ
11-01-2018, 04:59 AM
» Replies: 0
» Views: 818
DESEMBER CLUB MEETING
Forum: KARTS Communication
Last Post: ZS6NJJ
06-12-2017, 10:19 AM
» Replies: 0
» Views: 396
Cheap 2m Beam
Forum: KARTS Technical
Last Post: ZS6CDB
10-10-2017, 10:33 AM
» Replies: 0
» Views: 528
OCTOBER CLUB MEETING
Forum: KARTS Communication
Last Post: ZS6CDB
10-10-2017, 10:29 AM
» Replies: 0
» Views: 442

 
  B.A.C.A.R. 2018
Posted by: zs6sky - 15-05-2018, 08:48 PM - Forum: KARTS General - No Replies

Hi folks

The BACAR Team has started work on B.A.C.A.R. 2018

BACAR ?  Balloon Carrying Amateur Radio.......


Goals for this year
Priorities:
Tracking
Working PICAXE & Sensors
Camera & Video
Coms

If you want to find out more, please come visit us at our next project meeting - Wednesday 23 May at 6 pm at the club House....

Latest Update:
At our May Club Meeting, Stephen Showed Nico the PICAXE 6 Editor software and explained the working of the PIAXE Code.
We looked at the programming for the BMP280 sensor, on Saturday evening, Stephen added some code supplied by Nico to the PIC, but there was no output, Stephen then loaded some other snippets of code supplied for last years cube, in order to get the BMP280 to feed its data stream back to the PIC, we have got some output, but cannot interpret it.
By Sunday evening, Nico and Stephen were working on Altitude vs Atmospheric pressure readings and what pressure to expect at 30 kms above sea level, we need to know these readings in order to spec the correct sensor to replace the BMP280 sensor that won't work for this mission.
We found a sensor available at RS Components for around R290-00, we want to see if we can get it cheaper somewhere else and if we can buy just one off.
So this pressure sensor can measure to -40 Degrees and to +125 degrees, the 125 is not a problem, as we already know the minus temperature goes to minus 50 at 30 kms, so this sensor may or may not be Ok at the negative temperature.

So I am still busy correcting a on/off programming issue with our cube, I'll have that corrected by next week.

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  Hard to find Valve's and things
Posted by: zs6sky - 09-05-2018, 07:51 PM - Forum: KARTS Swop Shop - No Replies

Tim has the following valve's for Sale:

807 - VT266

807 VT100A x 2

807 Pentode 60 %, 807 Pentode x 2 , 807 Pentode 55 % 

813 / VT144   x 5

814 

RCA 830B 

837 Pentode 

8643 + Base   x 2

4-400 + base

4  250 A / 5D22 Electron tube 

4-65A / CV1905   x 2 

5B/258M   CV2347   x 4

5U4G / CV575  Rectifier 

1625 Pentode  x 2

2E24  Mini 6146  x 3

CV395 x 2

EL37  x 3

VT154 

VR150-30 Voltage Regulator 

VT80  Rectifier  350 volt

6L6  Pentode

6L6G x 2 

QQVO6-40A  x 2

QQVO3-20A  / CV2799  x 4

QQVO6/40    x 2

QY4-400B 

Raytheon RK866A

RCA 8121  x 4

RCA 6DQ5 

Torvac 6K8G 

 6V6  x 2

Troniix 6Y6G 

Teonex Valv 

TT21 

Unknown Rectifier simular to 523 VT14B

 VT145 Rectifier + base

VT204

 6146 B / S2001A with base   X 3

YL1060   x 2

5394 and Base

 Please contact Stephen on 082 568 4019 - Sold as is

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  Tim's Goodies for Sale
Posted by: zs6sky - 20-04-2018, 08:09 PM - Forum: KARTS Swop Shop - Replies (1)

Hi members

Tim ZS6IM has the following items for sale:

1 x Mega

[Image: Megger.jpg.opt484x363o0%2C0s484x363.jpg]




Valve Tx / Rx Project, featured in Radio ZS - Tim's creations
[Image: 20180419_194838_resized.jpg.opt479x359o0...79x359.jpg]

Use for whatever

Analog Volt meter and Analog Amp meter

[Image: 20180419_194943_resized.jpg.opt477x357o0...77x357.jpg] 

Box of Transformers & Some other transformers used in old day radio's

[Image: 20180419_195104_resized.jpg.opt268x357o0...68x357.jpg][Image: 20180419_204455_resized.jpg.opt465x620o0...65x620.jpg]

Wavemeter W1252

[Image: Wave%20meter.PNG.opt423x319o0%2C0s423x319.PNG]

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Bug Its-not-real-ham-radio-by-chris-g7ddn
Posted by: ZS6DEZ - 10-03-2018, 03:55 PM - Forum: KARTS General - No Replies

An interesting article regarding Amateur Radio.

Following text is copied from the article.

"And we will have to start facing up to questions similar to these…

  • What exactly defines a Radio Amateur?

  • What do we mean by “Amateur RF”?

  • Is it RF generated by someone who is an Amateur?

  • Or is it RF generated on a particular band allocated to us by the government?

  • If so, does it absolutely HAVE to be that?

  • Can it be nothing else?

  • Does any of this really matter?

What about our bands?
As Hams we are very “attached” to our bands. Whether it be 160m or 2m, we almost have a psychological sense of “ownership” of them. We have “favourite” bands, we have bands we never frequent."


I pose the following question based on contents of this article. 


Why spend a lot of money on expensive rigs ?

Please do read the article. Found on the link below.
http://network-radios.com/index.php/2018...ris-g7ddn/

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  AGM 2018
Posted by: ZS6CDB - 10-02-2018, 11:03 AM - Forum: KARTS Communication - Replies (1)

AGM 2018



Attached Files
.pdf   KARTS Notice of AGM 2018.pdf (Size: 124.99 KB / Downloads: 52)
.pdf   KARTS AGM Minutes 8 April 2017.pdf (Size: 291.9 KB / Downloads: 54)
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  February 2018 Club Meeting
Posted by: ZS6CDB - 10-02-2018, 10:59 AM - Forum: KARTS Communication - No Replies

February 2018 Club Meeting



Attached Files
.pdf   February 2018 Club Meeting.pdf (Size: 262.65 KB / Downloads: 55)
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  Weekly News 2018
Posted by: ZS6NJJ - 11-01-2018, 04:59 AM - Forum: KARTS Weekly News - No Replies

Weekly News 2018



Attached Files
.docx   9 January 2018.docx (Size: 28.93 KB / Downloads: 94)
.docx   23 January 2018.docx (Size: 28.1 KB / Downloads: 84)
.docx   6 February 2018.docx (Size: 28.38 KB / Downloads: 82)
.docx   13 February 2018.docx (Size: 28.66 KB / Downloads: 76)
.docx   20 February 2018.docx (Size: 28.51 KB / Downloads: 78)
.docx   27 February 2018.docx (Size: 30.28 KB / Downloads: 67)
.docx   6 March 2018.docx (Size: 27.03 KB / Downloads: 66)
.docx   13 March 2018.docx (Size: 30.55 KB / Downloads: 57)
.docx   20 March 2018.docx (Size: 26.56 KB / Downloads: 53)
.docx   3 April 2018.docx (Size: 29.6 KB / Downloads: 37)
.docx   10 April 2018.docx (Size: 28 KB / Downloads: 27)
.pdf   17 April 2018.pdf (Size: 104.03 KB / Downloads: 41)
.docx   24 April 2018.docx (Size: 31.25 KB / Downloads: 30)
.pdf   1 May 2018.pdf (Size: 149.69 KB / Downloads: 34)
.docx   8 May 2018.docx (Size: 29.49 KB / Downloads: 20)
.docx   15 May 2018.docx (Size: 29.8 KB / Downloads: 22)
.docx   22 May 2018.docx (Size: 27.63 KB / Downloads: 17)
.docx   5 June 2018.docx (Size: 30.4 KB / Downloads: 13)
.docx   12 June 2018.docx (Size: 29.6 KB / Downloads: 13)
.docx   26 June 2018.docx (Size: 28.53 KB / Downloads: 14)
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  DESEMBER CLUB MEETING
Posted by: ZS6NJJ - 06-12-2017, 10:19 AM - Forum: KARTS Communication - No Replies

DESEMBER CLUB MEETING



Attached Files
.pdf   December 2017 Club Meeting.pdf (Size: 211.08 KB / Downloads: 81)
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  Cheap 2m Beam
Posted by: ZS6CDB - 10-10-2017, 10:33 AM - Forum: KARTS Technical - No Replies

This is a very easy, cost effective and fun antenna project



Attached Files
.pdf   Cheap 2 m beam.pdf (Size: 827.44 KB / Downloads: 2315)
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  OCTOBER CLUB MEETING
Posted by: ZS6CDB - 10-10-2017, 10:29 AM - Forum: KARTS Communication - No Replies

OCTOBER CLUB MEETING



Attached Files
.pdf   October 2017 Club Meeting.pdf (Size: 192.31 KB / Downloads: 85)
.pdf   Cheap 2 m beam.pdf (Size: 827.44 KB / Downloads: 4681)
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