pe1hzg How high is the tower?
Posts by PA3FYM
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ATTiny13a is too much to bit-bang an ADF4351, 13a is sufficient imho. No delay_us(1) but a 'nop' suffices.
Here's my clock in routine:
Display MoreCode- void writePLL(uint32_t PLLword) { // this routine clocks a 32 bits word into the ADF435x
- // msb (b31) first, lsb (b0) last
- for (uint8_t flop=0; flop<32; flop++) { // PLL word has 32 bits
- if (PLLword & 0x80000000) sbi(PORTB,data); else cbi(PORTB,data); // put MSB on data line
- sbi(PORTB,clk); // clock in bit on rising edge of CLK (PB2 = 1)
- asm("nop");
- cbi(PORTB,clk); // CLK (PB2 = 0)
- PLLword <<= 1; // rotate left for next bit
- } // for flop
- sbi(PORTB,le); // latch in PLL word on rising edge of LE (PB1 = 1)
- asm("nop");
- cbi(PORTB,le); // LE (PB1 = 0)
- } // writePLL
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David G0MRF Thanks for guiding us into your endeavour and hopefully you've a good demonstration at the AUK event !
BTW Your ADF4351 LO-settings are ok , I presume ?
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@G0MRF as addition to G0MJW 's input, the lens (with glue) is ' clicked' over a ledge / ridge, so with some wrenching it can be pulled off .. sometimes a screw driver may help ... ; -)
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DG8ABG I referred to a 740 MHz SAW filter, not a 2.4 GHz one ... (?)
The 740 MHz filter is handy when you go down in two steps from 10489.5 to 432.5 MHz:
10489.5 - 9750 (LNB LO) = 739.5 [SAW-FILTER] - 307 MHz (2nd LO) = 432.5 MHz
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Shortest reply I read here on the forum. Congrats George! : -)
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DH2VA Yes! That was the occurence I mentioned, you were the one who published it : -)
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DB2OS That already exists. People making 'QSO's' via the internet (no, I am not talking about Echolink ; -) because they can't install an antenna or experience too much QRM.
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ON4CJQ that one counts as 9M2 and not as 9M6 (unfortunately ... )
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G0MJW Please ask Attilla if he wants to fire up the equipment again?
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PY2RN I think your map is a little pessimistic. E.g. Paramaribo (which is left of your line) is in the footprint, well in ... it's 'on' 0.2 degr ; -)
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S57NML Where did you get that map from ? Do you have the full Monty?
There is one city (on the border) in Paraguay that has also around 1 degr or so.
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AFIK LU is not within the footprint of QO-100 ?!
Therefore my question . . .
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PY2RN Who did you work from Argentina over QO-100 ?
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That 9M62 event station where Sion operated counts as 9M2
OK .. the missing one was 4U indeed.
Never heard him. . .
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I don't have the precise stats here, but from memory:
Grids worked: 305
DXCC worked: 76
PY2RN : I miss(ed) ZA, 3A, A4 .. but the other one?
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I use this 740 MHz filter in my transverter. It's only 3 x 3 mm ; -)
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I remember we had one earlier this year and noticed a minor increase in (background) noise level
Edit: that was with a 60cm dish
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Should I think about bringing a backup?
As long as Murphy's Law exists, that isn't a bad idea ; -)
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G8UGD It is not necessary to have a 'full Monty / super duper' converter with a NF < 1 cB (centi Bell ; -). A LO and one diode is enough to monitor the 2.4 GHz signal.
