HDTenEightyP/NetNews huggingface dataset:
From: dave@ips.oz.au (Dave Horsfall)
Subject: Daily IPS Report - 15 Aug 92
Organization: IPS Radio and Space Services.  Sydney, Australia.
Distribution: aus
Date: Mon, 17 Aug 1992 01:12:52 GMT

IPS RADIO AND SPACE SERVICES AUSTRALIA
Daily Solar And Geophysical Report
Issued at 2330 UT 14 August 1992
Summary for 14 August and Forecast up to 17 August
No IPS warning is current.
-----------------------------------------------------------

1A. SOLAR SUMMARY
Activity : low

Flares: None.

Observed 10.7 cm flux/Equivalent Sunspot Number : 129/081

1B. SOLAR FORECAST
             15 August          16 August          17 August
Activity     Low to moderate    Low to moderate    Low to moderate
Fadeouts     Possible           Possible           Possible

Forecast 10.7 cm flux/Equivalent Sunspot Number : 125/077

1C. SOLAR COMMENT
None.
-----------------------------------------------------------

2A. MAGNETIC SUMMARY
Geomagnetic field at Learmonth: active from 1200-1800UT, otherwise
quiet to unsettled.

Estimated Indices : A   K
    Sydney          --  ---- ----
    Learmonth       12  2312 4421
    Fredericksburg  11
    Planetary       13

2B. MAGNETIC FORECAST
Geomagnetic field at Sydney : quiet to unsettled
Ap :  10

2C. MAGNETIC COMMENT
None.

3A. GLOBAL HF PROPAGATION SUMMARY
Propagation conditions :         
Low Lats: Normal.
Mid Lats: Normal.
High Lats: Normal.
PCA Event : None.
3B. GLOBAL HF PROPAGATION FORECAST
Propagation conditions are expected to be normal.
3C. GLOBAL HF PROPAGATION COMMENT
None.

-----------------------------------------------------------

4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
MUF's at Sydney were near normal.

Observed Sydney Regional Ionospheric Index :  89

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
          15 August        16 August       17 August
MUFs      near normal      near normal     near normal
T index   80               85              80

Predicted Monthly Ionospheric Index for August is 100.

4C. AUSTRALIAN REGION COMMENT
None.

-- 
Dave Horsfall (VK2KFU)         VK2KFU @ VK2RWI.NSW.AUS.OC
dave@ips.OZ.AU                  ...munnari!ips.OZ.AU!dave
Newsgroups: aus.radio
From: dave@ips.oz.au (Dave Horsfall)
Subject: Daily IPS Report - 14 Aug 92
Organization: IPS Radio and Space Services.  Sydney, Australia.
Distribution: aus
Date: Fri, 14 Aug 1992 00:40:11 GMT

IPS RADIO AND SPACE SERVICES AUSTRALIA
Daily Solar And Geophysical Report
Issued at 2330 UT 13 August 1992
Summary for 13 August and Forecast up to 16 August
No IPS warning is current.
-----------------------------------------------------------

1A. SOLAR SUMMARY
Activity : low

Flares: None.

Observed 10.7 cm flux/Equivalent Sunspot Number : 129/081

1B. SOLAR FORECAST
             14 August          15 August          16 August
Activity     Low to moderate    Low to moderate    Low to moderate
Fadeouts     Possible           Possible           Possible

Forecast 10.7 cm flux/Equivalent Sunspot Number : 115/066

1C. SOLAR COMMENT
None.
-----------------------------------------------------------

2A. MAGNETIC SUMMARY
Geomagnetic field at Learmonth: quiet with a brief active period from
1400-1700 UT.

Estimated Indices : A   K
    Sydney          --  ---- ----
    Learmonth       07  1111 4222
    Fredericksburg  06
    Planetary       10

2B. MAGNETIC FORECAST
Geomagnetic field at Sydney : quiet
Ap :  08

2C. MAGNETIC COMMENT
A sudden impulse, at about 1515UT over Australia, caused the
brief active period.

3A. GLOBAL HF PROPAGATION SUMMARY
Propagation conditions :         
Low Lats: Normal.
Mid Lats: Normal.
High Lats: Normal.
PCA Event : None.
3B. GLOBAL HF PROPAGATION FORECAST
Propagation conditions are expected to be normal.
3C. GLOBAL HF PROPAGATION COMMENT
None.

-----------------------------------------------------------

4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
MUF's at Sydney were slightly depressed.

Observed Sydney Regional Ionospheric Index :  76

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
           14 August        15 August        16 August
MUFs       Near normal      Near normal      Near normal
T index    85               80               85

Predicted Monthly Ionospheric Index for August is 100.

4C. AUSTRALIAN REGION COMMENT
None.

-- 
Dave Horsfall (VK2KFU)         VK2KFU @ VK2RWI.NSW.AUS.OC
dave@ips.OZ.AU                  ...munnari!ips.OZ.AU!dave
Newsgroups: aus.radio
From: ycomputr@runx.oz.au (Mark Cheeseman)
Subject: Re: WICEN again
Organization: Your Computer Magazine, Sydney, Australia
Date: Sat, 22 Aug 92 10:47:19 GMT

In article <1992Aug20.205903.8011@runx.oz.au> richardm@runx.oz.au (Richard Murnane) writes:

>recognises the value of the service in such situations (trivia time!: in
>"Management of the Radio Frequency Spectrum - an Economic Analysis", one
>of the world's truly dry and boring documents, on page 20, it says "Some
>indirect social benefits are gained as they can provide an extra means
>to transmit and receive distress signals. Three of the CB radio channels
>are reserved for emergency use and amateur users pass on distress signals."
>Rivetting stuff, eh?)

Really? I didn't think concepts like "social benefits" were known to 
economists :-)
>
>Looked at as a club (of sorts), WICEN is a hell of a lot more active than
>any other organisation, with events every weekend in various parts of the
>state (just speaking for NSW).
>
Is it my imagination, or is this a lot more than there were, say, 2 years
ago? There certainly seems to be a lot more of them. I wonder if it's the
cause of WICEN's new-found "vitality", or an effect of it...

[details of many exercises deleted]

I take your point...
>
>Well, Mark, it's great that you have considered joining in the past - the lack
>of portable equipment makes a refreshing change from the "years ago.."

Actually, I don't have a *total* lack of portable gear, but the FT-290 is a
bit bulky to cart around pedestrian-mobile.

>The best way to start is to take part in a WICEN exercise (there's plenty
>to choose from these days :-) Either Dave and I can find one to suit you or
>anyone else on the net. I hope you'll give it a go...
>
Perhaps I should stop saying "one of these days" (it's a bit like Real Soon
Now) and get into it.

-Mark


-- 
Mark Cheeseman, Your Computer. ycomputr@runx.oz.au  
packet: vk2xgk@vk2op.nsw.aus.oc     [This space intentionally blank] 
Phn: +61 2 693 4143  Fax: +61 2 693 9720  Fido: 3:712/505.15@fidonet.org
Newsgroups: aus.radio
From: dave@ips.oz.au (Dave Horsfall)
Subject: Daily IPS Report - 22 Aug 92
Organization: IPS Radio and Space Services.  Sydney, Australia.
Distribution: aus
Date: Sat, 22 Aug 1992 00:29:26 GMT

IPS RADIO AND SPACE SERVICES AUSTRALIA
Daily Solar And Geophysical Report
Issued at 2330 UT 21 August 1992
Summary for 21 August and Forecast up to 24 August
No IPS warning is current.
-----------------------------------------------------------

1A. SOLAR SUMMARY
Activity: moderate

Flares    Max     Fadeout    Begin   End    Freq.  Sectors
 M1/1B    0018UT    comfirmed
 M1/1F    1110UT    none
 M1/1N    1200UT    none

Observed 10.7 cm flux/Equivalent Sunspot Number : 125/077

1B. SOLAR FORECAST
             22 August          23 August          24 August
Activity     Low to moderate    Low to moderate    Low
Fadeouts     Possible           Possible           None expected

Forecast 10.7 cm flux/Equivalent Sunspot Number : 120/071

1C. SOLAR COMMENT
None.
-----------------------------------------------------------

2A. MAGNETIC SUMMARY
Geomagnetic field at Learmonth: mostly quiet to unsettled with
brief active periods 12-15UT and minor storm periods 18-21UT.

Estimated Indices : A   K
    Sydney          --  ---- ----
    Learmonth       15  3221 4351
    Fredericksburg  10
    Planetary       10

2B. MAGNETIC FORECAST
Geomagnetic field at Sydney : quiet to unsettled
Ap :  15

2C. MAGNETIC COMMENT
None.

3A. GLOBAL HF PROPAGATION SUMMARY
Propagation conditions :         
Low Lats: Normal.
Mid Lats: Normal.
High Lats: Normal.
PCA Event : None.
3B. GLOBAL HF PROPAGATION FORECAST
Propagation conditions are expected to be normal.
3C. GLOBAL HF PROPAGATION COMMENT
None.

-----------------------------------------------------------

4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
MUF's at Sydney were near normal to slightly depressed.

Observed Sydney Regional Ionospheric Index :  69

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
          22 August           23 August          24 August
MUFs      depressed about 15% near normal        near normal
T index   70                  80                 80

Predicted Monthly Ionospheric Index for August is 100.

4C. AUSTRALIAN REGION COMMENT
None.

-- 
Dave Horsfall (VK2KFU)         VK2KFU @ VK2RWI.NSW.AUS.OC
dave@ips.OZ.AU                  ...munnari!ips.OZ.AU!dave
Newsgroups: aus.radio
From: wkt@rodos1.adfa.oz.au (Warren Toomey)
Subject: Re: ACT Packet Symposium
Organization: Australian Defence Force Academy, Canberra, Australia
Date: Thu, 3 Sep 1992 04:35:32 GMT

From article <terryd.715472471@extro.ucc.su.OZ.AU>, by terryd@extro.ucc.su.OZ.AU (Terry Dawson):
> I was talking to Ron 1RH last weekend at the VK2 WIA 'Forum' .. and he
> reminded me of the Canberra Packet Symposium. Is it really this coming
> weekend ? If so I will not be able to attend. :-(

A Pity Terry, yes it is indeed this weekend i.e 5th September.




  Warren Toomey VK1XWT, on the path to insanity
  No longer in the bowels of ADFA Comp Science.
   `Version 7 Job Control: just use ptrace(2).'
Newsgroups: aus.radio
From: terryd@extro.ucc.su.OZ.AU (Terry Dawson)
Subject: Re: ACT Packet Symposium
Organization: Sydney University Computing Service, Sydney, NSW, Australia
Date: Fri, 4 Sep 1992 08:45:53 GMT

wkt@rodos1.adfa.oz.au (Warren Toomey) writes:

>> I was talking to Ron 1RH last weekend at the VK2 WIA 'Forum' .. and he
>> reminded me of the Canberra Packet Symposium. Is it really this coming
>> weekend ? If so I will not be able to attend. :-(

>A Pity Terry, yes it is indeed this weekend i.e 5th September.

Aaaghhh .. I wanted to go .. :-(
Please suggest a calendar be consulted when organising these things ..
Fathers day weekend has gotta be a risky choice :-)

Say Hello to Ron for me then .. and apologise for me ..

I assume someone will post a detailed report here ?

Terry


-- 
Terry Dawson, terryd@extro.ucc.su.OZ.AU, vk2ktj@gw.vk2ktj.ampr.org
+61 2 925 1556 (voice), +61 2 922 5973 (fax).   __\*/__  0^Ooooo _
Newsgroups: aus.radio
From: dave@ips.oz.au (Dave Horsfall)
Subject: Daily IPS Report - 27 Aug 92
Organization: IPS Radio and Space Services.  Sydney, Australia.
Distribution: aus
Date: Thu, 27 Aug 1992 01:23:09 GMT

IPS RADIO AND SPACE SERVICES AUSTRALIA
Daily Solar And Geophysical Report
Issued at 2330 UT 26 August 1992
Summary for 26 August and Forecast up to 29 August
No IPS warning is current.
-----------------------------------------------------------

1A. SOLAR SUMMARY
Activity: very low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number : 093/041

1B. SOLAR FORECAST
             27 August          28 August          29 August
Activity     Low                Low                Low
Fadeouts     None expected      None expected      None expected

Forecast 10.7 cm flux/Equivalent Sunspot Number : 095/043

1C. SOLAR COMMENT
None.
-----------------------------------------------------------

2A. MAGNETIC SUMMARY
Geomagnetic field at Learmonth (WA) : quiet to unsettled

Estimated Indices : A   K
    Sydney          --  ---- ----
    Learmonth       07  2132 3211
    Fredericksburg  15
    Planetary       16

2B. MAGNETIC FORECAST
Geomagnetic field at Learmonth (WA) : quiet to unsettled
Ap :  08

2C. MAGNETIC COMMENT
None.

3A. GLOBAL HF PROPAGATION SUMMARY
Propagation conditions :         
Low Lats: Normal.
Mid Lats: Normal.
High Lats: Normal.
PCA Event : None.
3B. GLOBAL HF PROPAGATION FORECAST
Propagation conditions are expected to be normal.
3C. GLOBAL HF PROPAGATION COMMENT
None.

-----------------------------------------------------------

4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
MUF's at Sydney were 20-30% depressed 00-01UT, 04-08UT and at 19UT.
Frequencies at other times were near normal monthly values.

Observed Sydney Regional Ionospheric Index :  55

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
          27 August          28 August          29 August
MUFs      depressed          depressed          depressed     
T index   55                 60                 60 

Predicted Monthly Ionospheric Index for August is 100.

4C. AUSTRALIAN REGION COMMENT
Frequencies for the 27th are expected to be 20-30% depressed from
00-09UT and near normal to 20% depressed at other times.

-- 
Dave Horsfall (VK2KFU)         VK2KFU @ VK2RWI.NSW.AUS.OC
dave@ips.OZ.AU                  ...munnari!ips.OZ.AU!dave
Newsgroups: aus.radio
From: dave@ips.oz.au (Dave Horsfall)
Subject: Daily IPS Report -  4 Sep 92
Organization: IPS Radio and Space Services.  Sydney, Australia.
Distribution: aus
Date: Fri, 4 Sep 1992 00:43:56 GMT

IPS RADIO AND SPACE SERVICES AUSTRALIA
Daily Solar And Geophysical Report
Issued at 2330 UT 3 September 1992
Summary for 3 September and Forecast up to 6 September
IPS Warning No. 21, issued on 02 Sept is still current.
-----------------------------------------------------------

1A. SOLAR SUMMARY
Activity: very low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number : 107/057

1B. SOLAR FORECAST
             04 September       05 September       06 September
Activity     Low                Low                Low
Fadeouts     None expected      None expected      None expected

Forecast 10.7 cm flux/Equivalent Sunspot Number : 105/055

1C. SOLAR COMMENT
None.
-----------------------------------------------------------

2A. MAGNETIC SUMMARY
Geomagnetic field at Sydney : active to minor storm

Estimated Indices : A   K
    Sydney          --  ---- ----
    Learmonth       24  2345 4443
    Fredericksburg  35
    Planetary       50

2B. MAGNETIC FORECAST
Geomagnetic field at Sydney : active to minor storm
Ap :  30

2C. MAGNETIC COMMENT
Disturbance due to coronal hole.

3A. GLOBAL HF PROPAGATION SUMMARY
Propagation conditions :         
Low Lats: Fair.
Mid Lats: Normal-Poor.
High Lats: Normal-Poor.
PCA Event : None.
3B. GLOBAL HF PROPAGATION FORECAST
Propagation conditions are expected to be fair at low lats
fair at mid lats and poor at high lats.
3C. GLOBAL HF PROPAGATION COMMENT
None.

-----------------------------------------------------------

4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
MUF's at Sydney were near normal until 17UT, then depressed by up to
50-30%.

Observed Sydney Regional Ionospheric Index :  79

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
          04 September       05 September       06 September
MUFs      depressed about 30% depressed about 20% near normal
T index    50                 60                 70

Predicted Monthly Ionospheric Index for September is 90.

4C. AUSTRALIAN REGION COMMENT
None.

-- 
Dave Horsfall (VK2KFU)         VK2KFU @ VK2RWI.NSW.AUS.OC
dave@ips.OZ.AU                  ...munnari!ips.OZ.AU!dave
From: ycomputr@runx.oz.au (Mark Cheeseman)
Newsgroups: aus.radio
Subject: Re: WICEN again
Date: 30 Aug 92 11:53:35 GMT
Article-I.D.: runx.1992Aug30.115335.25101
Organization: Your Computer Magazine, Sydney, Australia

In article <1992Aug30.070119.23968@runx.oz.au> richardm@runx.oz.au (Richard Murnane) writes:
>>miles! Mine has a different problem - shoulder strap's OK, but I murdered the
>>antenna years ago, so it's external-only for me.
>So did I, but surely you can still get replacement antennas from Tricky's?

I thought so too. DSE told me they'd "try" to get one in for me. That's the
last I ever heard. I haven't wanted to use the rig portable since then, so
I just forgot about it. Maybe it's time to try again. It's just that I usually
think of things like that at times like these (approx 21:55 local on Sunday!).

-Mark


-- 
Mark Cheeseman, Your Computer. ycomputr@runx.oz.au  
packet: vk2xgk@vk2op.nsw.aus.oc     [This space intentionally blank] 
Phn: +61 2 693 4143  Fax: +61 2 693 9720  Fido: 3:712/505.15@fidonet.org
From: richardm@runx.oz.au (Richard Murnane)
Newsgroups: aus.radio
Subject: Re: WICEN again
Date: 30 Aug 92 07:01:19 GMT
Article-I.D.: runx.1992Aug30.070119.23968
Organization: RUNX Un*x Timeshare.  Sydney, Australia.

In article <1992Aug25.081633.12341@runx.oz.au> ycomputr@runx.oz.au (Mark Cheeseman) writes:
>Sounds like my problem here, except that there's no cliffs to climb within
>miles! Mine has a different problem - shoulder strap's OK, but I murdered the
>antenna years ago, so it's external-only for me.
So did I, but surely you can still get replacement antennas from Tricky's?

73 de Richard VK2SKY

-- 
Richard P. Murnane                     Every time I read the Sydney Morning
Internet: richardm@runx.oz.au          Herald cartoon page, I am reminded that
UUCP:     uunet!runx.oz.au!richardm    that I've become an institutionalised
Packet:   VK2SKY @ VK2RWI.NSW.AUS.OC   bankie: I now find "Bristow" funny...
Newsgroups: aus.radio,aus.radio.packet
From: richardm@runx.oz.au (Richard Murnane)
Subject: Re: WICEN again
Keywords: Packet
Organization: RUNX Un*x Timeshare.  Sydney, Australia.
Date: Mon, 31 Aug 92 21:04:00 GMT

In article <1992Aug25.031802.5791@newshost.anu.edu.au> mbk113@rsphy3.anu.edu.au (Marek Kaminski) writes:
>We had a sample of this scenario last weekend at South Coast Rally
>(around Bateman Bay).
>There were WICEN people,  repeaters, digipeaters, mobile radios, laptop
>computers biting dust
>on roadsides, special software for the event ... and the final flop: all
>data transmitted by voice.
>Can we try learning some lessons from that? I strongly believe that
>portable packeteering IS
>doable, but it must be done some other way. I have some comments about
>the packet attempt,
>wonder if there is an audience interested in discussing the matter?
>73s (by packet), Marek vk1kam 

Yes, I heard a bit from Bil VK2APN, that the packet hadn't been so hot,
but I've yet to hear the gory details - let's have them, Marek! Another
scenario was WICEN's use of packet at the International Six Day Enduro.
There were still problems, but they were mainly due to software cockups
on the part of the commercial organisation to whom our packet network
was hooked up (to process the competitor's times). Overall, things went
extremely well, thanks to a lot of preparation on the part of the Hunter
WICEN gang.

Let's not forget that WICEN's involvement in these events is mainly as
a *training exercise*, so it's important we discuss the problems and learn
from them! So I, for one, am interested in discussing the matter; I'd
say that Dave VK2KFU will be in it. Not to mention those lurkers out there...

73 de Richard VK2SKY

-- 
Richard P. Murnane                     Every time I read the Sydney Morning
Internet: richardm@runx.oz.au          Herald cartoon page, I am reminded that
UUCP:     uunet!runx.oz.au!richardm    that I've become an institutionalised
Packet:   VK2SKY @ VK2RWI.NSW.AUS.OC   bankie: I now find "Bristow" funny...
From: dave@ips.oz.au (Dave Horsfall)
Newsgroups: aus.radio
Subject: Re: WICEN again
Date: 30 Aug 92 08:56:44 GMT
Article-I.D.: ips.1992Aug30.085644.27183
Organization: IPS Radio and Space Services.  Sydney, Australia.

In article <1992Aug25.082219.12418@runx.oz.au>
   ycomputr@runx.oz.au (Mark Cheeseman) writes:

>What size gel cell do you find adequate for an "average" day's use?

Dunno - I've never let them go flat :-)  Actually they're about 6 A/hr
or so - fairly heavy, but a lot of grunt.  Jaycar have a range of gel-cells
in various sizes.

When gel-cells are made in "standard" sizes I'll chuck out my Nicads.
They also have the advantage of being float-charged, unlike Nicads.

-- 
Dave Horsfall (VK2KFU)         VK2KFU @ VK2RWI.NSW.AUS.OC
dave@ips.OZ.AU                  ...munnari!ips.OZ.AU!dave
Newsgroups: aus.radio
From: dave@ips.oz.au (Dave Horsfall)
Subject: Daily IPS Report - 24 Aug 92
Organization: IPS Radio and Space Services.  Sydney, Australia.
Distribution: aus
Date: Mon, 24 Aug 1992 03:44:12 GMT

IPS RADIO AND SPACE SERVICES AUSTRALIA
Daily Solar And Geophysical Report
Issued at 2330 UT 23 August 1992
Summary for 23 August and Forecast up to 26 August
No IPS warning is current.
-----------------------------------------------------------

1A. SOLAR SUMMARY
Activity: low

Flares: none

Observed 10.7 cm flux/Equivalent Sunspot Number : 111/061

1B. SOLAR FORECAST
             24 August          25 August          26 August
Activity     Low to moderate    Low                Low
Fadeouts     Possible           None expected      None expected

Forecast 10.7 cm flux/Equivalent Sunspot Number : 100/049

1C. SOLAR COMMENT
None.
-----------------------------------------------------------

2A. MAGNETIC SUMMARY
Geomagnetic field at Learmonth: at active to minor storm levels
00-09UT, otherwise quiet to unsettled.

Estimated Indices : A   K
    Sydney          --  ---- ----
    Learmonth       21  5543 3222
    Fredericksburg  40
    Planetary       70
2B. MAGNETIC FORECAST
Geomagnetic field at Sydney : quiet to unsettled with possible 
active periods.
Ap :  25

2C. MAGNETIC COMMENT
The disturbances may have been caused by 4 M-class flares on 20 August.

3A. GLOBAL HF PROPAGATION SUMMARY
Propagation conditions :         
Low Lats: Fair to good.
Mid Lats: Fair to good.
High Lats: Poor to fair.
PCA Event : None.
3B. GLOBAL HF PROPAGATION FORECAST
Propagation conditions are expected to be fair to good at low and 
mid lats, poor to fair at high lats.
3C. GLOBAL HF PROPAGATION COMMENT
None.

-----------------------------------------------------------

4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
MUF's at Sydney were 15-30% depressed 00-04UT, up to 45% 
depressed 16-19UT, near normal otherwise.

Observed Sydney Regional Ionospheric Index :  50

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
          24 August           25 August          26 August
MUFs      depressed about 20% near normal        near normal
T index   65                  75                 80

Predicted Monthly Ionospheric Index for August is 100.

4C. AUSTRALIAN REGION COMMENT
None.

-- 
Dave Horsfall (VK2KFU)         VK2KFU @ VK2RWI.NSW.AUS.OC
dave@ips.OZ.AU                  ...munnari!ips.OZ.AU!dave
Newsgroups: aus.radio