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Tuesday, 30 October 2012

Cumbria DSP


All bits for Ron's DSP boards have arrived... sorting now. (I have not ordered the jumpers or some of the discrete C and R I expect builder to either have their own or easy access to them).

If anyone was interested please get in touch. Should have 20 sets (minus mine so 19!) some are spoken for.

Looks like quite a bit of saving on the oneses and twoses prices.

I will contact Ron and see if he has spare boards.

Monday, 29 October 2012

No comments with links to dodgy sites

Please note any comments to dodgy sites will get dropped as spam no exceptions.

Just had a dozen anonymous comments and they have all gone the same way.

Please do not include links to anything non amateur radio or I will not publish it. I cannot edit part of a comment so even though the rest might be useful information I'll still not publish it and report it as spam.
I really would prefer it if you do have a comment or link tag with your own blog and callsign (assuming you are a radio amateur).

Dom

DSP from Cumbria Designs

Any considering trying to build one of Ron's DSP projects

http://www.cumbriadesigns.co.uk/DSP.htm





His Rishworth presentation is:
 http://www.cumbriadesigns.co.uk/images/DSP/Rishworth%20Digital%20Signal%20Processing.ppt
I picked up a PCB from Ron at Rishworth and want to do a group buy? He isn't doing kits at moment... you will have to get PCB from him.

There would not be huge savings as there are not that many components
but I have Farnell account so easy to add a few extras so if 10 were
interested would save maybe £4-£6 or so on the cost of the Voltage
regulators, DSP PIC, Audio chip TLV320AIC23BPW and MAX3221CAE.


I just ordered these:

1st number is Farnell Component ID
1294844  MICROCHIP DSPIC33FJ64GP306-I/PT16BIT MCU/DSP, 64K FLASH,
40MIPS £3.24
1207297  TEXAS INSTRUMENTS TLV320AIC23BPWG4 IC, CODEC AUDIO, SMD,
TSSOP28 £4.92
9724508  MAXIM INTEGRATED PRODUCTS MAX3221CAE+ IC, TRANSCEIVER, SMD,
3221, SSOP16 £1.52
1842205  TXC 9B-12.288MAAJ-B XTAL, 12.288MHZ, 18PF, HC-49S £0.36
1842224  10      TXC 9B-20.000MAAJ-B     XTAL, 20.000MHZ, 18PF, HC-49S £0.36

1663356 LT1117 3v3 regulator £2.23
1759361RL 100nF 1210 cap £0.015
1833901 470nf 1210 cap £0.45 I only bought 5 of these for myself.

I have 10 sets of them.

The price is what they will cost me so I'll pass them on for same.

If interested let me know.

Thursday, 18 October 2012

Stuff I am selling at Rishworth.

A list of all the goodies I'll have on my table (up on the stage):

A lot went.... those through lined.

Most if not all are built projects.

Item Asking (GBP )
23cm ATV TX 30
23cm ATV RX 30
G6ALU ATV Controller 30
Superdrug Radios 2.5
Howes 2m and 6m RX Converter 10
Fuchs Antenna Tuner 17.5
ADC-40 15
Mono Headset 2
Wood pieces Donation (10p)
Wires etc Donation (10p)
Wall warts 20p each
Laptop Power Supply 1
Printer power supply 1
Softrock 20m SDR RX 5
10MHz frequency counter 10
RX , TX PCB VK3XU 40m SSB CW - M1KTA Version 15
Notch Filter 10
Velleman Water Alarm 2.5
Velleman PMK125 light switch 5
Discrete AF AMP 3
SA 612 Detector 3
TinEAR RN N6BM PCB 3
Frequency Standard V1.1 3
MC1349 IF Amp 3
500Hz Xtal Filter (5.0688MHz & 430pF) 4
RF Amp 3
SA612 HM Mixer Kit 3
Universal VFO 10
Softrock 160m RX 5
Softrock V6.2 RXTX 160m 20
Softrock V6.2 RXTX 20/30m 20
Softrock 30m RX 5
MKARS-80 CW Kit (Built) 30
MKARS-80 (Built) 50
ARDF-80 RX 40
ARDF-80 TX (x2) 5
Softrock V6.2 RXTX 40/80m 20
SnapPaddle 15
Softrock V4.0 40m ORIGINAL 20
Softrock V6 RX Various 5
FDIM2008 RF PA 5
KitsandParts 10W PA 30
SLT Tuner 20
Digital Dial 20
Tenna Dipper kit 20
Tenna Dipper Built 25
Miniboots 5W PA 15
Marker Generator 5
Softrock Ensemble RXTX 40/80 45
Norcal W6JJZ BLT Tuner 15
DDS Si570 28
DDS Si570 PCB 5
PFR-3 150
Frequency Standard (kits and parts) 8
Small wonder labs SW20+, Norcal Keyer, 10T 50K and AB13 box 60
DDS-60 (2 of) 10 each
BITX20A 90
JUMA Keyer 20
Softrock V6.2 RXTX 80m 20
433.9MHz RX and TX (2 of) 5ea pair
Norcal-2030 Part kit 45
VNA V1 70
BW Camera 5
Colour Camera 5

Tuesday, 16 October 2012

KX3 Headset

Asked over and over what am I using...

Logitech  PC Headset 860
P/N 981-000094

This has a small boom mic and the leads are mic 3.5mm and audio 3.5mm The headset has an inline volume control and a mic mute. The mic is noise cancelling too!




The cost was £6.80 from ebay including P&P :-)

Did a search and there are similar headset on ebay

http://www.ebay.co.uk/itm/Logitech-860-Stereo-Headset-Noise-Cancelling-Headphones-Boom-Mic-3-5mm-PC-New-/160902122688

Now I didn't want something that looked like a 'tank commander' / ear defender type over the ears and wanted something light weight and fitting for use.

The lead is plenty long enough.

I carry one for use with the PC (older P/N 881-000033 no noise cancelling mic) for skype and I found on 6W or KH8 easiest way to let someone hear what I was up to is connect a Y adapter and the second headset and let them listen themselves.

A LOT cheaper than the Heil one that can be bought and whilst not in the same category I found perfectly usable.

W5/M1KTA QRV from AE5X shack

Ran a short pile in the QRP-ARCI contest from John (AE5X) shack. He collected me from the gate at Houston, breakfast and then operated (I setup the station as I had run it in KH8) plugged into his antennas and operated.





Great fun.

Note the large FT240-61 ferrite on the leads for the K1EL usbwinkeyer... doesn't matter what I do I keep getting RF even at qrp back into laptop from rig from this. I had to restart wintest and other laptop bits from time to time, most annoying.

Yes in contest/pile up I use cwget to help with the cw tune (last image). I do not use a hand key when running win-test either and send everything through the keyboard so you will not see a key n the picture, although I do have a palm paddle plugged in usually.

Sunday, 14 October 2012

First direct QSL beat me home!

Got home at 11:00 UTC today 14th October and first direct QSL beat me home :-)

W6SDM... Not created QSL cards yet !

All qso in the log with KH8/M1KTA uploaded to LoTW.