RNZI on 17675kHz [Archive] - DRM Software Radio Forums

zfyoung

04-11-2006, 06:29

Partially unattended log. Audio sounds better than the graph has shown. If only the transmission can use UEP coding mode.

zfyoung

08-11-2006, 06:19

Unattended Log. A little shaky at the start of logging.

zfyoung

14-11-2006, 06:20

Partially unattended log. For some unknown reason, dream crashed. So I had to split the log into two halves. Signal is not that strong, but listenable.

Brendan1

15-11-2006, 03:10

Interesting log. I haven't tried to do a lot of RNZI logging recently as conditions are no longer very good from NZ to my QTH. Today, because Dream crashed, I wasn't able to log my usual five other stations, so I decided to do a log of RNZI instead. As of 0405Z, they appeared to be off air, as no waveform was visible.

15 November addition: forgot to mention that RNZI was in UEP mode, running at 49.1%, all according to the SDC data showing on Dream. Can someone tell me what this means compared to the AAC/AAC+ modes?

Owdjim

18-11-2006, 02:50

Hi All

I managed to listen to RNZI on 17675 kHz today.

Cheers, Chris

zfyoung

21-11-2006, 06:35

Good signal, but I have no time to listen to the programme. At 0500 UTC brief drop-out due to adjacent channel interference.Overall, strong and stable signal. Good reception result considering the thunder storm nearby.

PS: the DRM schedule of RNZI is so confusing esp in the weekend they switched on and off transmission on end, such an annoyance!

zfyoung

26-11-2006, 07:45

I don't know what happened to the ionosphere today and yesterday. Signal strength is drastically weaker than normal. Ionosphere disturbance or simply the transmission site maintenance?:confused: If conditions like this continue ,they should lower the bit rate or/and use CELP source coding scheme considering most of their programmes are speech nature.

zfyoung

06-12-2006, 06:41

Unattended log. Good reception quality. No more complaint.:D

zfyoung

16-12-2006, 07:14

Just a short log. Good condition for this frequency.

AF4MP

08-01-2007, 11:57

The overnight 17675kHz reception report (unattended).

-Zyg-

Jeff

24-03-2007, 03:09

Radio New Zealand International broadcasting on 17675 Khz DRM 16.5kb/s
Super signal into New England. Decode at a solid 24-25db. Amazing for this time of night. 16 Meters was dead except for this signal. Great programming to boot, armchair reception from the other side of the world.

Brendan1

19-10-2008, 16:49

Okay, I picked up this tiny little bit of signal following the planned off-air period for antenna work. Not much, and hopefully tomorrow, the 20th, does better.

Brendan1

20-10-2008, 05:27

Okay, this is much better! Not a bad evening's work, and far better than my expectations. Last night's log (19th) may have just been showing some spurious RF and not an actual RNZI signal. Solar conditions are approximately the same, which rules out such crappy, spotty reception compared to tonight.

Brendan1

21-10-2008, 16:31

Lots of 'change' last night. While I heartily approve of change in politics, this kind is nowhere near as good.

Brendan1

22-10-2008, 17:07

Well, I must confess to forgetting to set the logger yesterday, so this got started a little late. Still didn't help: the band closed pretty early.

Brendan1

24-10-2008, 20:48

There's an awful lot of dead time showing up...:(

Brendan1

25-10-2008, 17:21

Dream crashed at 0340; sorry about that. However, based on what data I did record, it looks like it wouldn't have suddenly sprung to 100% later on, helping the overall log.

Brendan1

26-10-2008, 16:15

The band is still dropping out quite well. Local sunset is now at 2358UTC, so to get nearly 2 hours of band opening after sunset is actually doing pretty well. It'll get worse though...

Brendan1

27-10-2008, 15:31

Interesting little upward blip at the end of the log, but it didn't really help out much! :(

Brendan1

28-10-2008, 02:29

No need to continue logging, nothing's there, so I cut it off early.

Brendan1

29-10-2008, 05:17

Today was not my day: two logs didn't record, and Dream crashed while recording this one. The band had closed by the time the crash happened, so it wasn't all bad. :rolleyes:

Brendan1

30-10-2008, 02:42

Right on time the band closed, dropping out fast.

Brendan1

31-10-2008, 16:58

I let the logger run the entire scheduled period, and there are some blips in the SNR later. The band is still dropping out around 0200, so nothing has changed.

Another observation: after this one finishes, I tune to 15720 which is the next posted frequency, and there is nothing there for me to even attempt to copy.

:(

Brendan1

01-11-2008, 16:08

A rather steep drop-off last night, but great reception up until that point.

Brendan1

03-11-2008, 17:02

I'll try again: last night's posting isn't here. Still closing down around 0200-0230.

Brendan1

04-11-2008, 03:06

Shut down pretty much on time tonight.

Brendan1

05-11-2008, 16:47

Shut down early last night.

Digger

07-11-2008, 06:30

Good reception in Japan. One and a half hours with 98% CDA.

Due to a bug somewhere (the character code of this NEC computer???) my log displays the longitude as "38E" instead of "138E", so the distance to　the TX is wrong. It should be 9234 km.

Brendan1

07-11-2008, 16:56

Hi Terje! Welcome to the Pacific side of DRM! :)

Conditions here were not very good at all, unfortunately. Nothing for the 6th, it appears the transmitter was undergoing maintenance.

Brendan1

08-11-2008, 03:30

Woooo, a cliff appeared on my log, and RNZI dropped right over it. I have noticed over the years though that the higher frequency bands will do this, and shut down super fast. The lower ones (<15MHz) don't give up as easily, but then they don't propagate as far or as well as the higher ones (at the current solar minimum). I can hardly wait for the solar cycle to start climbing.

Digger

09-11-2008, 12:21

Hi Bendan and all,

Yeah, my "3rd QTH" is at this side of the big Pacific Pond, and it is interesting to hear what is going on in this part of the world in form of DRM. Unfortunately I have not been able to rig any antennas here except for a few meters of wire strung from the house out in the miniature garden, even that we reside beside a dry river bed and it would be possible to set up a 400 m longwire from "our" house :D

Today I think the conditions were not the best with a K=4, so the log looks a bit awful. I had to use DreamCalc, as my own DRM-Plotter stood me up on the "138 E" (shows up as "38 E"). Need to look into this when I get back to QTH #1.

Cheers,

Brendan1

09-11-2008, 15:19

Well, I was wondering if I should have mentioned that bug to the programmer. ;)

I'm not going to complain about the K index: first time I've been able to record the entire 17675 broadcast!

Brendan1

10-11-2008, 03:53

The band shut down early again. Must be back to 'normal.'

Brendan1

11-11-2008, 02:56

Definitely a famine tonight: the band closed very early.

Digger

12-11-2008, 00:10

I'll leave the log out today. I thought that RNZI would come in much stronger here, but there you are. This morning here about midnight UTC won't produce much at all... :eek:

Brendan1

12-11-2008, 06:35

RNZI stayed open a little later tonight, maybe about 30-45 minutes worth.

Brendan1

13-11-2008, 02:24

Another short night, and while technically not over as I write this, there is no signal at all.

Brendan1

14-11-2008, 06:46

Pretty short and nasty tonight.

Brendan1

15-11-2008, 02:00

No need to prolong the agony of trying to log something that is no longer there.

Brendan1

17-11-2008, 02:55

An odd, long dip last night on the 16th, nothing bad tonight until band closure.

Brendan1

18-11-2008, 02:20

Rather too short tonight.

Brendan1

19-11-2008, 17:33

Didn't even make it for an entire hour last night. By the time the winter season actually starts I may not get anything at all.

Brendan1

20-11-2008, 16:40

Apparently off-air for transmitter maintenance.

Brendan1

21-11-2008, 16:51

This is a really strange log: usually RNZI is wide open at the start, and this log certainly shows a differently behaving band last night.

Brendan1

22-11-2008, 16:50

Right on time: sunset sees both the sun and the band go down. There were some attempts at coming back up, but no such luck.

Brendan1

24-11-2008, 16:44

Made it until about 20 minutes after sunset here last night.

Brendan1

26-11-2008, 16:32

The 25th pretty much follows the latest pattern, but last night, the 26th, was totally off! A bizarre but very nice band opening to say the least.

Brendan1

27-11-2008, 18:35

Just like clockwork: completely gone at local sunset, precisely.

Brendan1

28-11-2008, 18:04

Not a great log, but it did last a little longer than the 'norm' of late.

Brendan1

29-11-2008, 18:09

Very poor results once again.

Brendan1

01-12-2008, 02:44

An "A" index of 1 and a "K" of 0 didn't help tonight.

Brendan1

02-12-2008, 17:21

SF=68, K=0, A=0.

Not much to log last night, although RNZI was trying to make it up here.

Brendan1

03-12-2008, 16:32

Quite mediocre. SF69, A0, K1.

Brendan1

04-12-2008, 17:22

Transmitter work last night, although I did see a very faint trace about 0145 that didn't last and was too weak for any decoding.

Brendan1

05-12-2008, 17:11

Some good but brief periods last night, otherwise not enough SNR for most of the broadcast log.

Brendan1

06-12-2008, 17:57

Interesting log, as it shows some odd propagation here.

Brendan1

07-12-2008, 17:08

Quite poor conditions: K index was unchanged, A was 12 (now 20), and the K was 2. :(

Brendan1

08-12-2008, 16:50

The A level was still too high last night.

Brendan1

09-12-2008, 16:52

Even low K and A indices didn't help last evening. Very sporadic propagation into the west coast of NA.

Brendan1

10-12-2008, 16:43

Once again propagation was very irregular last night. SF was still 69, A:0, and K:0.

Brendan1

11-12-2008, 17:09

Wow, almost nothing at all. SF was 70, A:0, and K:2 at the time.

Brendan1

13-12-2008, 23:44

Missed the 12th, sorry to say!

Only some brief periods of actual signal last night, not all that long.

Brendan1

14-12-2008, 17:14

A very short period of excellent reception last night. I started a little early as the CBC was off air.

Brendan1

15-12-2008, 06:30

Very poor propagation and reception tonight. SF has dropped back to 69, A:0, and K:1.

Brendan1

16-12-2008, 16:45

Very short band opening last night. SF is still 69, A was 0, and K was 1.

Brendan1

17-12-2008, 17:10

Reception was pretty much the same, and solar prop was virtually unchanged.

Brendan1

19-12-2008, 16:47

Reception was good, but only too briefly.

Brendan1

20-12-2008, 17:05

The usual: good but all too short.

Brendan1

21-12-2008, 18:00

A little longer listening time last night, first time in several weeks.

Brendan1

22-12-2008, 23:40

A little better last night, RNZI was up for slightly longer.

Brendan1

23-12-2008, 16:47

What is it with 17MHz not liking darkness? :rolleyes:

Brendan1

24-12-2008, 17:37

Still closing early here. :(

Merry Christmas and Seasons' Greetings to all!

Brendan1

25-12-2008, 18:34

A higher A index seemed to help a little last evening.

Merry Christmas, and Happy Boxing Day to the Antipodes!

Brendan1

26-12-2008, 16:46

A fairly typical evening's log.

Brendan1

27-12-2008, 20:51

Extremely poor last night.

Brendan1

28-12-2008, 17:54

Extremely poor results last night.

Brendan1

29-12-2008, 17:00

Extremely poor propagation last night. Almost not worth it.

Brendan1

30-12-2008, 16:50

I hope the rest of the winter is not like this.

Brendan1

31-12-2008, 16:59

There really was a signal there, I saw it! Just a bad night for radio... :(

Last log for a few days while I move to Chicago for a few weeks. I'll try to log RNZI from there, but I'm doubtful as to any possible success.

Happy New Year! Frohes Neues Jahr! Bonne Année! :D

Brendan1

10-01-2009, 02:53

Nothing copied here yesterday or today. Not one iota of RF from RNZI unfortunately. I might try 9870 or the other higher frequencies tomorrow, but the space/time difference might be too great.