Tuesday, 2 February 2016

Si570 for UHFSDR



Just ordered some Si570 for the 432cm version of the UHFSDR.... Si570 I had (From KM5H and Si themselves) would have done HF fine but didn't have the top end frequency range I needed.

Lets hope they turn up..


Custom Part Number Specification:
 
Part Number570ABA001689DG
Model NumberSi570
Startup Frequency (MHz)514.000000
I2C Address55 (Hex)
FormatLVPECL
Supply Voltage3.3 V
OE PolarityOE active high
Stability+/- 31.5 ppm
Frequency Range10 - 945, 970 - 1134, 1213 - 1417.5 MHz
Operating Temp Range (°C): -40 to +85

Monday, 1 February 2016

1.2GHz looks likely this summer...



I'm going to be putting together one of the setups from here http://www.minikits.com.au/electronic-kits/transverters/23cm-Transverter after speaking to John G4BAO about 1.2GHz at Camb-Hams meetings the drive however will be an SDR not the more usual ricebox. Probably an UHFSDR with a STM32SDR controller. So the whole setup will not require a PC and will be dedicated to 1.2GHz in the first instance.

Seems I have a 18W PA as well so whilst definitely not QRP will still be pretty low power. Also it looks like might have a few island trips this summer (in EU) so hope to activate some squares either side on contests.


Sunday, 17 January 2016

K2 last bits, ATU and PA in EC2

The last bits... ATU and 100W PA in EC2









The short ribbon cable needs to be connected between the 100WPA and the ATU to provide the K2 signals but not connected it or tested.

The 100W PA has a lead for AF (as it has the speaker as if in K2 enclosure) so you'll have to work out how to use it or remove it.

Probably safe to assume I have not tested or aligned any of it So go through the manual and run through the checks..

Sunday, 10 January 2016

K2 Build part1

This is for someone building this for....

Here is what the internals looks like with the built modules installed.



In order go around clockwise from top right....

1. The mike rework is in place (sticker on the case). This I added as I did not have the mike they said they were using. Remove the side panel on right (one with sticker on) and you will see the jumpers in place.
2.The K2 DSP/realtime clock module. The 3V coin battery was dead so added a new one.
3. The 60 transverter module.
4. The 160m 2nd RX antenna
5. Noise blanker
6. SSB module

You will see the KIO2 board as well, not the speaker has the extra shielding as was to be used with the 100W PA until that was relocated to a second EC2.

Short video showing the KIO2 with a usb to serial interface with a cable I made up and win-test just changing band and mode.

video


The ATU/100W module in the second part.




Saturday, 12 December 2015

CQWW CW

They have not finished all the adjudication bit yet...


2015 CQ WW CW Contest

QRP All Bands - M1K

Raw scores before log checking. Last updated:
Listing shows rank, call, score, and operators. Checklogs are not included.

   Country (G): #6 of 7 

   1 G4DBW..........369,104
   2 G3YMC..........248,860
   3 G4FPA...........93,450
   4 G4SGI...........64,500
   5 M3JAC...........40,135 (G7PVZ)
6 M1K..............9,776 (M1KTA)
7 M0CVO............5,959  [all scores]

Continent: #77 of 102 

  72 CT7AEZ..........12,096
  73 DM1LM...........11,997
  74 PA0RBO..........11,016
  75 RA7R............10,496
  76 DL6MWG..........10,400
77 M1K..............9,776 (M1KTA)
78 OM3CUG...........9,114 79 DL2BIS...........9,009 80 I2BPP............8,968 81 EA3WX............8,883 82 OZ1DGQ...........8,468  [all scores]

   World: #121 of 170 

 116 PA0RBO..........11,016
 117 JH7BMF..........10,614
 118 RA7R............10,496
 119 DL6MWG..........10,400
 120 JN3DMJ..........10,296
121 M1K..............9,776 (M1KTA)
122 OM3CUG...........9,114 123 DL2BIS...........9,009 124 I2BPP............8,968 125 EA3WX............8,883 126 KH6CS............8,840  [all scores]
   

Friday, 27 November 2015

SCC M1K qrv this w/e

CQWW CW contest is this w/e.

Doing some work on aligning a K2 then will be in the contest for some of it anyway. M1K and qrp.


Tuesday, 6 October 2015

IOTA 2015 Result

M1KTA as SD7B Came 1st in SOA QRP Island DX 24hr Mix, 2nd globally in QRP category for island DX.

:-)

BUT... I lost 27 percent of my claimed score through poor serial numbers! REALLY BAD!

You have lost 8 multiplier credit(s) and 24 qso credit(s) as follows:
timebandModeYourSerialCallSerial RcvdIOTArefReason for loss of creditMultiplier Lost
122320CW9G3P21 BAD COPY[BAD IOTA] IOTA of G3P was EU005 
171320CW62JH1FNU296AS007NOQSO[BAD SERIAL] Serial given by JH1FNU was 201 
190520CW70YO8SS105 NOQSO[BAD SERIAL] Serial given by YO8SS was 70 
203340PH88G4ALE498EU120NOQSO[NOTINLOG] Not in G4ALE s log-MULT 40PH
212340CW96G3P41EU005BAD COPY[BAD SERIAL] Serial given by G3P was 410 
220980CW101DL5AXX177EU129BAD COPY[BAD IOTA] IOTA of DL5AXX was NIL-MULT 80CW
221280CW103MD4K1087EU116BAD COPY[BAD SERIAL] Serial given by MD4K was 1387 
222580CW111SK2T376EU135BAD COPY[BAD IOTA] IOTA of SK2T was NIL-MULT 80CW
223380CW116SM5CKV834 BAD COPY[BAD IOTA] IOTA of SM5CKV was EU177 
224480CW122LA8OM513EU055BAD COPY[BAD IOTA] IOTA of LA8OM was NIL-MULT 80CW
225180CW123S59NA/9A133 BAD COPYShould be S59A/9A 
024580CW138ES0U133EU034BAD COPY[BAD SERIAL] Serial given by ES0U was 1331-MULT 80CW
024880CW1399A7T350EU136BAD COPY[BAD IOTA] IOTA of 9A7T was NIL-MULT 80CW
035980CW155DJ3WE5 BAD COPY[BAD SERIAL] Serial given by DJ3WE was 95 
061440CW174DL8WE138 BAD COPY[BADCOPY] Should be DL8WEM 
070120CW190SK2T562EU135BAD COPY[BAD IOTA] IOTA of SK2T was NIL-MULT 20CW
071720CW196RK3SWB/11038EU147NOQSO[NOTINLOG] Not in RK3SWB/1 s log 
074220CW2069A7T429EU136BAD COPY[BAD IOTA] IOTA of 9A7T was NIL-MULT 20CW
081920CW223DK0MM66 BAD COPY[BAD SERIAL] Serial given by DK0MM was 668 
090520CW243EW8DX  BAD COPY[BAD COPY] Serial received CANNOT be 0 
090720CW244YO2IS  BAD COPY[BAD COPY] Serial received CANNOT be 0 
111920CW297OE2VEL81 NOQSO[BAD SERIAL] Serial given by OE2VEL was 816 
112420CW299US8GX529 BAD COPY[BADCOPY] Should be UR8GX 
112920CW302GI5O1738EU115BAD COPY[BAD IOTA] IOTA of GI5O was EU122