[TheList] Pager Decoding

Radio Scanner rs157950 at gmail.com
Mon Jan 11 07:59:06 AEDT 2021


What's your gain set at? Shouldn't need any more than 1/3rd the way up 
the scale tbh. Hopefully someone else can chime in (Brendan?) and tell 
us what their decode rate is as it would appear to be a system problem 
rather than ours.

On 10/01/2021 9:21 p.m., DogSecurity - Richard wrote:
> Yeah could give that a shot. My plan was to move down south but then 
> the lockdowns happened and work got busy, so the place I moved into is 
> a temp setup (my aerial is the old VHF TV aerial that noone has 
> removed yet)
>
> I assume the SDR on a crap aerial is the probable cause of a low 
> decode rate, however when listening to the channel, it appears I'm 
> decoding everything/nearly everything, hence ignoring the decode rate.
> ------------------------------------------------------------------------
> Sent from a mobile device. Please excuse my brevity, punctuation and 
> spelling.
>
> On 10 January 2021 4:16:58 pm NZDT, Radio Scanner <rs157950 at gmail.com> 
> wrote:
>
>     Interesting you mention such a low decode rate Richard, I noticed
>     my decode rate drop a couple years ago from 99-100% to 35-40%,
>     despite my setup not changing in the past ~8 years. Uniden scanner
>     with disc tap feeding a 2 level slicer on the serial port. Another
>     machine runs a SDR dongle on the 925 channel into a 2 level slicer
>     from the audio output. This channel's decode rate is anywhere from
>     20-25% with an average number of messages. You might try using the
>     command line rtl_fm program instead of SDR# / SDRConsole.
>
>     On 10/01/2021 3:47 p.m., DogSecurity - Richard wrote:
>>     Hey Mike,
>>
>>     I'd say that it's probably your volume levels. I've never done
>>     the discriminator tap, which may have made things harder, but
>>     getting the computer volume and scanner volume just right is
>>     nothing short of a pain in the ass.
>>
>>     Right now, I'm temporarily using an SDR dongle. The volumes are
>>     (SDRsharp keeps crashing on me so I'm using software called SDR
>>     Console) 100% output on the software, 61% on the VAC input. This
>>     gives me an average of about a 40% decode rate according to PDW
>>     3.2b01, however I physically seem to be decoding a lot of
>>     messages so I'm ignoring that decode rate
>>     ------------------------------------------------------------------------
>>     Sent from a mobile device. Please excuse my brevity, punctuation
>>     and spelling.
>>
>>     On 10 January 2021 2:04:22 pm NZDT, Mike Trump
>>     <mtrump at orcon.net.nz> wrote:
>>
>>         Hi Guys,
>>         Happy New Year to one and all.
>>         I have a little query regarding pager decoding using the PDW software
>>         and I'm not sure if it's a setting that's wrong
>>         or the way I've set this up.
>>         For years I used this program to monitor the Fire Service FLEX paging on
>>         157.9500, using a Uniden UBC-9000 scanner
>>         via a discriminator tap I'd installed in it and it worked good as gold,
>>         until one day the scanner just stopped
>>         receiving anything at all (it's on the list of things to fix, once I get
>>         around to it).
>>         Today I tried the software again, just out of curiosity with a handheld
>>         scanner plugged into my laptop microphone
>>         input, I'm pretty sure I have all the audio levels correct and the
>>         software is running fine, but it won't decode anything?
>>         I got a few POCSAG messages but that was it, have I messed something up
>>         here?
>>         Does anyone else here use a setup like this?
>>
>>         Cheers,
>>         Mike Trump.
>>         ------------------------------------------------------------------------
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