Forgot to add in and to correct some errors, the above telemetry decoding format is for the PSK31 tlm only. But you can download a PSAT tlm decoder off of DK3WN to decode both the aprs and psk31 telemetry. 73 KE8AKW
On Mon, Jun 8, 2015 at 9:09 AM, Nicholas Mahr nicholasmahr1@gmail.com wrote:
Hello all, I tryed out the pass on APRS about 12:50 UTC today. Very very strong satellite 57! Could not digepeat a packet for some reason. I think i was a little confused about the paths, what are the paths for to and via? Im using UISS. Got many frames of Telemetry this pass as well! Also bob you should at PSAT to oscar.dcarr for recepetion reports. I noticed very few people got digpeated... Also bob the frames that have all the numbers in them, what do they mean, are the just noisy tlm frames? Also for all the people out that wanted to know what their frame of telemetry means here you go:
PSAT Beacon specification:
CALL beacon MODE NOF DET AGC VC IC TMP
Where: CALLidentification of the beacon (callsign)beaconkeyword indicating beginning of dataMODEA or B (A – transmitter always on, B – transmitter turns on, if BPSK31 signal is present)NOFnumber of frame (0 … 999)DETpercentage of BPSK31 detection (0 … 99%)AGCpercentage of AGC operation (0 … 99%)VCsupply voltage (10 mVolts)ICpower amplifier current (mAmps)TMPtemperature of PA transistor (deg C)
The AGC measured voltage is highly nonlinearly dependent on the input signal, morover the limiting values of measurement vary with temperature of the chip and its supply voltage. Indicative only conversion equation was computed as from 50Ohm generator to input of receiver Pin = 0.472xAGC-113.5 [dBm, %]
Example:
W3ADO-5 beacon B 044 03 24 540 198 +28
It means mode B active, frame number 044, BPSK31 03 %, AGC acting 24%, supply voltage 5.40V, PA current 198mA ant temperature of the PA transistor of +28°C. Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=52 >[08:47:54] s#018259,0z200,jkIjkHjkGjkFikFikDikAhkahkbgkbgkcgkd
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=34 >[08:48:03] T#651,842,074,130,132,415,00000000
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=52 >[08:49:26] s#018260,0z200,dkdckebkeake0kf0kf0kf0kf0kf0jf0kg0kf
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=52 >[08:50:56] s#018261,0z200,bkgbjgcjfgjfhjghjfhjfhifhifiifiifiif
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=34 >[08:51:06] T#654,856,071,131,131,415,00000000
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=34 >[08:53:08] T#656,855,071,131,130,415,00000000
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=34 >[08:54:09] T#657,872,079,131,130,416,00000000
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=52 >[08:55:28] s#018264,0z200,D0hD0hDAhDAgDBgCBgCCgCCgCCgCDgCDgBDg
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=52 >[08:57:00] s#018265,0z200,BDgBDfBEfBEfBEfBEfBEfBEeBFeBFeCFeCFe
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=34 >[08:57:12] T#660,865,092,131,129,415,00000000
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=34 >[08:58:12] T#661,881,078,131,129,415,00000000
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=52 >[08:58:37] s#018266,0z200,DFfDFfDGeEGfEGfEGfEGfFGfEFfFFeEFeFFe
Fm PSAT To APRSON Via ARISS <UI pid=F0 Len=34 >[08:59:13] T#662,841,368,130,129,415,00000000