Voltages
Supply 11.90V
U2 Pin 6
DC RX 5.90V DC TX 5.90V
RF RX 247mV RF TX 247mV
Q2 Collector
DC RX 11.64V DC TX 11.64V
Q3 (Junction with R25) Emitter
DC RX 11.90V DC TX 11.89V
Q3 (Junction with C31) Collector
DC RX 12.16V DC TX 1.3mV
Not measured the RF voltages on Q2 and Q3 yet,,,
Friday 28 December 2012
Wednesday 26 December 2012
Flying Pig Rig #45
OK no RF out... :-(
Done a bit of probing. Going to do some operating using another rig for a bit then will come back to this.
Supply is 10 1.2V NiMH batteries and supply is 11.29V.
At Junction of R12/C14 have nice clean 230mA 7.03070 MHz signal (after turned C26 a bit).
Just to make sure that on key down I get a voltage to PA... R23/R26 11.15V on key down so the keying voltage is appearing.
Junction of C43/T1 11.05V and drops to 0V on key down
Junction of Q3/C31/T1 11.05V drops to 0V on key down
Q5 and Q6 (BD139) collector on both 11.25V key up or key down and emitter and base both remain at 0V
U1 Pin 7 11.27V
U2 Pin 8 5.94V
U3 Pin 6 11.22V
U4 Pin 8 5.25V
Done a bit of probing. Going to do some operating using another rig for a bit then will come back to this.
Supply is 10 1.2V NiMH batteries and supply is 11.29V.
At Junction of R12/C14 have nice clean 230mA 7.03070 MHz signal (after turned C26 a bit).
Just to make sure that on key down I get a voltage to PA... R23/R26 11.15V on key down so the keying voltage is appearing.
Junction of C43/T1 11.05V and drops to 0V on key down
Junction of Q3/C31/T1 11.05V drops to 0V on key down
Q5 and Q6 (BD139) collector on both 11.25V key up or key down and emitter and base both remain at 0V
U1 Pin 7 11.27V
U2 Pin 8 5.94V
U3 Pin 6 11.22V
U4 Pin 8 5.25V
Monday 24 December 2012
Flying Pig Rig #45 - Completed build (no case yet)
No case yet.
Powered by NiMH 10AA 12.6V
Turns on fine but no 'OO' :-)
Got to run but will come back and trouble shoot.
Doh,,, forgot to plug in battery!
Get the 'OO' big grin...
Powered by NiMH 10AA 12.6V
Turns on fine but no 'OO' :-)
Got to run but will come back and trouble shoot.
Doh,,, forgot to plug in battery!
Get the 'OO' big grin...
Flying Pig Rig #45 Build Part2
Got a few minutes so added the toroids, PA and heatsink.
I added the label to the rear of the heatsink.
Got to do some more tasks then will add all the other bits and align.
I added the label to the rear of the heatsink.
Got to do some more tasks then will add all the other bits and align.
Sunday 23 December 2012
Flying Pig Rig #45 Build
Building...
The parts in plastic bags
All the R installed
The Transformer T2 is really big :-)
T1 and T2 mounted
All the transistors
Got food now ... will complete rest tomorrow...
The parts in plastic bags
All the R installed
The Transformer T2 is really big :-)
T1 and T2 mounted
Capacitors and IC installed.
Got food now ... will complete rest tomorrow...
Friday 21 December 2012
Flying Pig Rig #'45 arrived...
As I am FP#2233 I will also get involved in trying to contact some other piggies this winter and next year.
Diz FP#1 has come up with a wonderful homebrew rig for all piggies... http://www.kitsandparts.com/fpra-7030.7.php
There is no tuning... turn it on listen and if you hear anyone it is likely to be another piggie.
Tuesday 11 December 2012
Cumbria DSP
Just set sets to:
M6EST
G4DYT
G1LHL
G3ROO (Ian got yours ready for your return from ZS)
G7VKQ (2nd set of discretes included)
Alan R ?? No contact
ZL2CCO got a set for you... send me an email please.
M6EST
G4DYT
G1LHL
G3ROO (Ian got yours ready for your return from ZS)
G7VKQ (2nd set of discretes included)
Alan R ?? No contact
ZL2CCO got a set for you... send me an email please.
Monday 10 December 2012
Cumbria DSP Components
Those who expressed an interest in a component set for Ron (G4GXO) board
please get in touch (do not send a comment it will not have your email on it!) the Farnell back order for the 470uF caps
has come in and so I have sets ready to post out now.
Saturday 8 December 2012
160m antenna
Asked for some photos...
Looking down the rear garden.
The two lines yellow and white going across the garden are washing lines.
One end (house end) with an insulator.
The end wire support is off a TV pole on the house so about 20ft agl.
The wire is almost invisible looking up.
The two garden supports, centre one and the end (by shack) the long wire is on small string loops.
Looking down the rear garden.
The two lines yellow and white going across the garden are washing lines.
One end (house end) with an insulator.
The end wire support is off a TV pole on the house so about 20ft agl.
The wire is almost invisible looking up.
The two garden supports, centre one and the end (by shack) the long wire is on small string loops.
Tuesday 4 December 2012
on 160m making qso :-)
Finally got the antenna and rig working nicely... cqing on 1.825 and just qso with S51EC and LA7AK.
I am QRP.
BIG GRIN :-)
I am qrp into a 140ft inverted L abt 25ft AGL.
I am QRP.
BIG GRIN :-)
I am qrp into a 140ft inverted L abt 25ft AGL.
Sunday 2 December 2012
on 160m again
This time RBN IS picking me up :-)
I am qrp and into a 140 ft long wire and tons of radials!.
Inverted L setup with vertical section about 30 feet and rest going down the garden.
SK3W picked me up in seconds.
CQ'ing 1.822.50 for now... I'll be out every night this week.
I am qrp and into a 140 ft long wire and tons of radials!.
Inverted L setup with vertical section about 30 feet and rest going down the garden.
SK3W picked me up in seconds.
CQ'ing 1.822.50 for now... I'll be out every night this week.
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