Hi hidehiko-San
Thank you .
Regards john.
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--- In QRPLabs@..., <qrper72@...> wrote:
Hi John,
I've QRV last night with U2 into a AL-metal case and found that no difference about the frequency drift with open case. The drift was between minus1 to plus1 and almost 0. It's my short test result.
73,ja9mat Hidehiko.
---In QRPLabs@..., <qrplabs@...> wrote:
Hi John,
OK I will try and report you.
ja9mat Hidehiko.
---In QRPLabs@..., <qrplabs@...> wrote:
Hi hidehiko- San
Great numbers, you're doing well without the 1 pps gps !
Can you do a small test ?
Can put a cover over your setup , something temporary to see if it makes a difference to stability !
Thank you hidehiko-San, tomodachi
73 john g4pir.
--- In QRPLabs@... mailto:QRPLabs@..., <qrper72@> wrote:
>
> FYI...
> The last night result as follows;
>
>
> --------------------------
>
>
>
> Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az 2013-10-21 20:42 JA9MAT 14.097065 -18 1 PM86mr 0.2 W7POE CN87tl 7789 45 2013-10-21 20:42 JA9MAT 14.097092 -9 1 PM86mr 0.2 WA2YUN RK39hh 3467 116 2013-10-21 20:18 JA9MAT 14.097100 -25 1 PM86mr 0.2 DU1MGA PK04 2943 217 2013-10-21 18:42 JA9MAT 14.097087 -22 0 PM86mr 0.2 PD5MVH JO22da 9135 333 2013-10-21 18:42 JA9MAT 14.097064 -32 1 PM86mr 0.2 PE1JXI JO20vx 9165 331 2013-10-21 17:30 JA9MAT 14.097085 -9 0 PM86mr 0.2 VK6XT OF86td 8103 197 2013-10-21 16:12 JA9MAT 14.097094 -23 0 PM86mr 0.2 JG1TWP/1 PM95rq 246 117 2013-10-21 16:06 JA9MAT 14.097088 -26 0 PM86mr 0.2 VK6ZRY OF78wd 7938 199 2013-10-21 15:00 JA9MAT 14.097110 -27 0 PM86mr 0.2 G7MER IO90er 9484 335 2013-10-21 14:36 JA9MAT 14.097083 -27 0 PM86mr 0.2 G4DND IO80bo 9578 336 2013-10-21 14:06 JA9MAT 14.097090 -33 0 PM86mr 0.2 OZ7IT JO65df 8524 331 2013-10-21 13:54 JA9MAT 14.097093 -24 0 PM86mr 0.2 G4CUI IO93fi 9234 337 2013-10-21 13:18 JA9MAT 14.097090 -24 1 PM86mr 0.2 HS0ZKM OK03gr 4430 244 2013-10-21 13:06 JA9MAT 14.097078 -27 1 PM86mr 0.2 JH1GYE PM96mi 183 103 2013-10-21 12:18 JA9MAT 14.097042 -22 0 PM86mr 0.2 VK2AKU QF56pg 7973 168 2013-10-21 12:18 JA9MAT 14.097045 -21 1 PM86mr 0.2 VK4ZBV QG62ml 7338 164 2013-10-21 12:12 JA9MAT 14.097049 -28 0 PM86mr 0.2 DL4JM JO31ed 9125 331 2013-10-21 08:54 JA9MAT 14.097059 -20 -1 PM86mr 0.2 LA9JO JP99gb 7233 340 2013-10-21 07:32 JA9MAT 14.097046 -25 1 PM86mr 0.2 PY2GN GG56tv 18413 20 ------------------------
>
> Hidehiko ja9mat
>
>
> ---In QRPLabs@... mailto:QRPLabs@..., <qrplabs@... mailto:qrplabs@...> wrote:
>
> Hi all,
>
> Now I add the DC-DC up-converter to the drain of 3 x BS170s, at Vd=12V Po=2W but it is not good for WSPR because of its heating, very HOT!!! I set the Vd to 8.5V and the Po=800mW it's the good condition for WSPR not so high temperature with small heat sinks, I will put my U2+GPS+DC/DC UpConerter setup into a ja9mat's file directry.
>
> Very enjoyable this tiny multimode transmitter thanks!
>
> ja9mat Hidehiko.
>
