Skip to main content

28MHz Australia center of the world 10m CW 5W1SA 4W6A



Later  in CW
28.034 KH0/NH2B  simplex(..)  heard but went QRT before I was ready to call
28.008 KH2/N2NL fb operator good signal but worked before.


Then 28031 heard 5W1SA  Samoa NNE  almost over the north-pole  signal sounded a bit Auroral not strong 539 but good Q5   I called many times  at the right uplink although he never mentioned he was listening up. But no response  I guess full power from an ACOM1000  is not enough?


Then 28.021   4W6A  East Timor     559 569 auroral sound (all signals)     up 5-10  called 500 times  I felt a bit like an idiot.
If he can not hear this signal full power  in the 3 ele StepIR   he must be deaf or running hi power in a noisy place?  Even when calling at the right uplink freq. no response.
Possible East Timor is not allowed to work PA?
Big pile of course  a bit behind the usual wall here but never the less one time I should be in the clear?
Why should I push it to the limit trying to work someone  who can or will not receive me anyway?
I lost my appetite complete for 4W6A  I am not trying again in the pile not spending 1 mW more.









 

Comments

PE4BAS, Bas said…
Neem aan dat die WX map een stukje script is. Wat jij dan wil is moeilijk.Ik heb gewoon 1 grote header gemaakt met diverse plaatjes daarin. 73, Bas
pa0o said…
Ja dat is blijkbaar lastig
Maar afbeeldingen in een bericht plaatsen gaat wel met de blog editor

raar dat dt niet werkt voor de rest
zal zijn reden wel hebben

Popular posts from this blog

2011-01-22 DIAMOND X30 2m 70cm 1m30 Colinear inside

Having relative poor signals on the local 70cm / 2m channels using this Diamond collinear 70/2 combi antenna at a height of 25m. I needed to investigate what could be wrong.
Measuring the cable only 3W is left for the antenna of the 10W 435MHz output from a IC451E
The cable is 30m type H100 Z50 10mm outside diameter it is semi air-spaced but has an impossible 4mm² solid CU inner conductor not much air left. I preferred the H43 Z75 cable having lower loss and mechanical better ratio in conductor size but it is no longer selling i think. This H43
3W should be enough for a comfortable noise free FM signal. But only 27km away at PA0A the signal is weak too weak something must be wrong? I made a simple reference dipole of 2x17cm CU wire.
With this dipole the signals where totally worse. So the Diamond does work?
I got curious to look inside. Maybe moisture penetration degraded the antenna.
This  antenna is rainwater close in its normal vertical mounting position. But take care if your mast can b…

SPF5189z Low noise preamp 23cm

14-4-2018 updated


Above the low noise  preamp 50 - 4GHz    ebay  6€

Tested  2 small porto antennas
1 Baofeng UV antenna left   2nd best signal on PI2NOS
2 eBay DIAMONDSRH805S  wide band 144/432/1200  it works for its size as expected
3 piece of wire :   best signal in the setup...

Unit under test at workbench.
It was stable  50mA  at 5V   few days,  but sudden the current went up to 100mA
And i could  no longer adjust it with the negative bias Voltage.
The - Voltage went to zero and the SPF input port became low Z.
This SPF5189z was broken  no oscillations, no input overload just it broke while i was receiving the PI2NOS 430.125 using a small antenna at the workbench.

The specs of  SPF5189z  say it has an internal circuit  regulating the bias current.
Replaced . again   with an other of the 5 spare SPF i have.
The new one again could be adjusted at 50mA  5V 
The current raises to 150mA  when removing the  negative gate voltage.
Where is that internal bias circuit ?
I suspect  eBay …

Nice opening10m and 12m to S.A.

SFI  low 70 a 16 K3  still 10m opened up in afternoon to N-Italy EA5 F JN33
F/PD0OHW/M in JN33 decoded 150mW

VP8LP  12m    2-way with GP 7m ag swr 1:3


60m 5,362 open to ZL every? morning