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Old 29-11-2013, 07:11   #1
tpreitzel
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RNZI @ 11690 kHz

Ambient Conditions: 38 F @ surface, RH 59 %, clear, average noise, PC on, M2 off ( 1 dB loss )

I won't rate this partial log, but reception was much better than expected for my location, time of night, and season of the year. However, IF RNZI wants coverage of western parts of the NA continent including Canada during the northern winter, they'll have to revert to using a frequency in the 41 meter band during the early morning hours here or early evening hours there.
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Last edited by tpreitzel : 29-11-2013 at 07:17.
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Old 30-11-2013, 06:08   #2
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Ambient Conditions: 45 F @ surface, RH 45 %, overcast, average noise, PC & M2 off ( 0 dB loss )

Although noisy, I can currently comprehend the audio of RNZI's analog broadcast on 11725 kHz while RNZI's digital broadcast on 11690 kHz is currently decoding at a SNR of ~ 9 dB on my DR111. Clearly, more power is needed. Let's have power levels for digital broadcasts at 60% of analog instead of the 40%, please. If my DR111 actually saves the log, I'll post it within the hour as I'm removing power from my main PC in a vain attempt to increase the SNR by one more dB.

Update: Eureka! The problem was due to my use of three temporarily installed 6' unshielded cables with 3.5 mm plugs that remain to be replaced. I must have been initially mistaken as the rise of 6 dB @ 0704Z must have been when I removed power to my main PC. Anyway, back to logging reception of digital broadcasts.
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Last edited by tpreitzel : 30-11-2013 at 11:56.
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Old 01-12-2013, 07:15   #3
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Ambient Conditions: 42 F @ surface, RH 55 %, overcast, average noise, PC & M2 off ( 0 dB loss )

I can't explain this erratic log at all, i.e. the sudden MASSIVE rises in SNR. Does Rangitaiki use a rotatable antenna? Atmospheric noise bordered on high throughout the broadcast. At least, I was able to hear part of an excellent rendition of "Silent Night" by the Christchurch Sacred Heart Church's Christmas Choir.

BTW, I'm now receiving RNZI @ 9870 kHz at a solid 21 dB, but I don't plan on logging it tonight. Although something (PC off) is causing these MASSIVE changes in SNR, I can't explain them. I'll have to continue my monitoring.
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Last edited by tpreitzel : 01-12-2013 at 07:31.
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Old 02-12-2013, 07:19   #4
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Ambient Conditions: 44 F @ surface, RH 57 %, overcast, average noise, PC & M2 off ( 0 dB loss )

Decoded Audio: Fair
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Old 04-12-2013, 07:14   #5
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Ambient Conditions: 5 F @ surface, RH 83 %, snow, average noise, PC & M2 off ( 0 dB loss )

Decoded Audio: Unacceptable

Another unexplainable log on this frequency ... If possible due to the absence of interference, RNZI, drop 17675 kHz and substitute 13730 kHz in its time slot. If possible, drop 13730 kHz from its current time slot and substitute 11690 kHz in its place. Next, drop 11690 kHz from its current time slot and substitute 9870 kHz in its place. Lastly, drop 9870 kHz from its current time slot and substitute a frequency in the 41 meter band in its place. Hummm, you USED to do something similar. RNZI may be the Voice of the South Pacific, but they certainly aren't the Voice of the Pacific.
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Last edited by tpreitzel : 04-12-2013 at 07:21.
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Old 05-12-2013, 07:50   #6
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Ambient Conditions: -7 F @ surface, RH 67 %, clear, average noise, PC & M2 off ( 0 dB loss )

I won't rate this partial log, but there was no strange behavior this morning.
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Old 04-04-2014, 08:51   #7
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As usual nothing at all in DRM from RNZI for me.
One nice thing with them is the associated AM transmission 11725 in that case.
And each time I tuned to them I could easily understand why DRM doesnt work
A very unstable signal indeed
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Old 04-04-2014, 09:14   #8
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The Forum clock is out of order!

I just checked RNZI around 0740 UTC on 11690 kHz in DRM and all I get is some time and frame syncs.

True, the AM signal 35 kHz up tells it all... all flutter.
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Old 04-04-2014, 09:38   #9
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SW Speed: High, SW Density: High
Environmental Conditions: PC on, M2 off ( 2 dB loss )

Evidently, RNZI is still experimenting with their frequencies ... Yesterday, 11675 kHz, today 11690 kHz. RNZI, changing the MSC to 16 QAM and a 14.56 kbps bit-rate would be wiser than switching frequencies.
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Old 04-04-2014, 11:26   #10
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Well as there is the possibility to switch to AM I think that it is best for them
to use the high quality modes of DRM.
The musical content of their program deserves it IMHO.
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Old 04-04-2014, 23:58   #11
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A mere loss of < 1 kbps will have a negligible negative impact on quality, but a significantly positive impact on reliability.

Last edited by tpreitzel : 05-04-2014 at 03:25.
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Old 07-04-2014, 05:55   #12
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Environmental Conditions: PC on, M2 off ( 2 dB loss )

Decoded Audio: Fair ... RNZI, switch to a MSC of 16 QAM!
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Old 13-04-2014, 10:04   #13
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Environmental Conditions: PC on, M2 off ( 2 dB loss )

I won't rate this partial log. After battling with installing radio automation software, Rivendell, on my Slackware64 machine, I'll leave posting the remaining logs for 11690 kHz for the next couple of days. Although Rivendell does function nicely, the developers should bring the system out of the stone age of PAM and QT3.
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Old 13-04-2014, 21:03   #14
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AM interference on 11695 Khz at 19H00 UTC in French from China
10Khz side bands

Last edited by F1BJB : 13-04-2014 at 21:06.
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Old 14-04-2014, 07:38   #15
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Environmental Conditions: PC on, M2 off ( 2 dB loss )

I won't rate this partial log.
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