Northern Territory Emergency Service
- Phil
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Northern Territory Emergency Service
2.5645
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7.3315
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11.4365
468.6750
468.6000
468.6250
468.6500
2.5675
3.7335
3.7365
3.7475
4.5685
4.5715
4.5775
5.1285
5.8345
7.3315
9.3015
11.4365
468.6750
468.6000
468.6250
468.6500
Phil
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Forum Administrator
phil@aussiescanners.com.au
Uniden UBCD996T, RH96, UBCD396xt, Uniden UBCD563-PT
RTL-SDRs way to many
Motorola GP328, GP338, GP328 Plus, XTS3000, DP3400 VHF, DP2600e, DP4801e, DM4601e, XTL5000-03, XTS2500 M3
Simoco SRM9030 AC, SRM9022 UW
Hytera - PD412, PD462, PD682, MD782G, PD782G
Barrett 950
Icom IC-F60, IC-410 Pro
Tait TM8250
Kenwood - NX720HG
- Stretch
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Re: Northern Territory Emergency Service
Communications over long ranges. For example:- Darwin to Katherine.Stretch wrote:What are the really low freqs for?
You need different frequencies for daytime and for night-time.
You can also need different frequencies over different ranges.
ie 300 Km as against 600 Km, or 1000 Km.
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Comint
- Stretch
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Re: Northern Territory Emergency Service
So would they be HF or MF?Comint wrote:Communications over long ranges. For example:- Darwin to Katherine.Stretch wrote:What are the really low freqs for?
You need different frequencies for daytime and for night-time.
You can also need different frequencies over different ranges.
ie 300 Km as against 600 Km, or 1000 Km.
--
Comint
Mitch Rogers
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Re: Northern Territory Emergency Service
HF, hf covers 2mhz to 30mhz.
Jeff (1000).
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Re: Northern Territory Emergency Service
HFStretch wrote:So would they be HF or MF?
MF is 300 kHz to 3000 kHz (3 MHz)
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Comint
- Stretch
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Re: Northern Territory Emergency Service
Under current ITU classifications, Yes.Stretch wrote:So the first two would be MF.
However, with a range of frequencies like the NTES selection, they would usually just be referred to as 'the HF frequencies'.
The 3s format (300 to 3000 kHz (3 MHz), 3 to 30 MHz, 30 to 300 MHz, etc.) are the current classifications, but those weren't always the boundaries. Some groups consider frequencies up to about 4.5 MHz to be MF, while others are adamant that HF starts at 1.8 MHz.
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Comint
- Stretch
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- SunnybankScan
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Re: Northern Territory Emergency Service
As you can see in this photo, the HF radio is just like their normal radio in the NT. Nice long range.
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Cheers
SunnybankScan
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SunnybankScan
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- Stretch
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Re: Northern Territory Emergency Service
Sh** that's a long antenna.SunnybankScan wrote:As you can see in this photo, the HF radio is just like their normal radio in the NT. Nice long range.
Nice looking car too

Wish we had them

Mitch Rogers
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Re: Northern Territory Emergency Service
I reckon that would be a Codan autoturner antenna.
Jeff (1000).
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- AIRMAN
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Re: Northern Territory Emergency Service
I worked in the Radio Room of the NTPOL in the early 70's. In those days we had an RCA HF transceiver and an other brand...Drake I think as a back-up.
There were two skeds a day, one in the morning and the other in the afternoon at set times. Skeds involved calling each NTPOL station thought the Territory except those south west of Alice Springs which was in their administration area. Each station had its own call sign. Darwin base was VL5DD I can't remember any of the others except 9SGX Wollogorang. Many of these police stations were in remote areas and some considerable distance from Darwin.
This was around 40 years ago so it may have changed a bit now.
The HF frequencies you listed above would not carry the distance in am. They are all SSB, so if anyone wants to listen out for them, you need an SWLRX with true carrier insertion SSB or a BFO on cheaper receivers and of course an HF antenna of some sort.
There were two skeds a day, one in the morning and the other in the afternoon at set times. Skeds involved calling each NTPOL station thought the Territory except those south west of Alice Springs which was in their administration area. Each station had its own call sign. Darwin base was VL5DD I can't remember any of the others except 9SGX Wollogorang. Many of these police stations were in remote areas and some considerable distance from Darwin.
This was around 40 years ago so it may have changed a bit now.
The HF frequencies you listed above would not carry the distance in am. They are all SSB, so if anyone wants to listen out for them, you need an SWLRX with true carrier insertion SSB or a BFO on cheaper receivers and of course an HF antenna of some sort.