Bit of xmas shopping advice required!:)

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Bit of xmas shopping advice required!:)

Postby ex vp8ckp » Sat Dec 09, 2017 4:25 pm

I bought my Dad a Uniden ubc-125XLT which he uses with a Sky Scan indoor Aerial 25-2000MHz (sited next to a window). He picks up aircraft fine but being not too from Hull docks/Humberside airport im wondering if an external aerial ,mounted on the shed/conserv/garage or house gable end would make a big enough increase in range? If the answer is yes then 'm thinking of one of the following:
a Scan King SE-1500 Base Scanner Antenna,Double Discone - Full Size or Sky Scan DX V1300 Discone Radio Scanner Antenna Aerial.

https://www.rocketradio.co.uk/radio-sca ... er-antenna
https://www.rocketradio.co.uk/radio-sca ... -full-size
https://www.rocketradio.co.uk/radio-sca ... nna-aerial

Any views/advice most welcome!
Cheers Jim
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Re: Bit of xmas shopping advice required!:)

Postby m0lsx » Sat Dec 09, 2017 5:28 pm

Lifting the height of the antenna will certainly make a difference. And if you can keep the coax short-ish & good quality, then you stand to get a reasonable gain over a small antenna in a window.
I can't say I know the Hull area too well, but I do remember it as lovely rolling countryside & I do remember walking the Wolds Way, which is that area.
What is audible will depend upon the path between your father & the airport / docks & if any land rises above that path.
For me. And it is just personal. I do not like so called scanner verticals. We are never told what they are & where they are resonant. So for me the SE-1500 is discounted. But only on personal taste grounds, not because hey do not work.
The DV-1300 is a design I like & have on a table top discone. But for me the Double Discone, puts more metal in the air & for that reason it's what I would choose.
With any discone, use something to lock the radials in place, as the wind does loosen them. But I am sure that with a VP8 callsign you are more than aware of the effects of wind on antennas.
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Re: Bit of xmas shopping advice required!:)

Postby ex vp8ckp » Sat Dec 09, 2017 5:42 pm

m0lsx wrote:Lifting the height of the antenna will certainly make a difference. And if you can keep the coax short-ish & good quality, then you stand to get a reasonable gain over a small antenna in a window.
I can't say I know the Hull area too well, but I do remember it as lovely rolling countryside & I do remember walking the Wolds Way, which is that area.
What is audible will depend upon the path between your father & the airport / docks & if any land rises above that path.
For me. And it is just personal. I do not like so called scanner verticals. We are never told what they are & where they are resonant. So for me the SE-1500 is discounted. But only on personal taste grounds, not because hey do not work.
The DV-1300 is a design I like & have on a table top discone. But for me the Double Discone, puts more metal in the air & for that reason it's what I would choose.
With any discone, use something to lock the radials in place, as the wind does loosen them. But I am sure that with a VP8 callsign you are more than aware of the effects of wind on antennas.


Thanks for the reply, leaning towards the double myself, pretty sure it will out perform the 1500, only doubt is if Dad would prefer a "cleaner"looking arial on the house but ill talk him around! And yes it can get a bit blowey down there, used a 3 element tribander beam on a VERY stout pylon;)
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Re: Bit of xmas shopping advice required!:)

Postby Minus1 » Sun Dec 10, 2017 9:57 am

The site will draw a cross-section of the topography between your dad's house and the transmitter.
http://www.heywhatsthat.com/profiler.html
(Of course you will need to establish where the transmitter is.)
Zoom-in and re-centre until you can see both, then draw a line between the two.
The nearest ATC site is 3 miles south of Caister near Rothwell.
There are coastguard transmitters sites at the Humber Bridge and at Easington (:64).
That will enable you to see whether reception is likely be improved by a better or a higher mounted antenna.
I reserve the right to ignore people who have made no attempt to the read the manual, and expect others to do it for them.
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Re: Bit of xmas shopping advice required!:)

Postby ex vp8ckp » Sun Dec 10, 2017 12:03 pm

Minus1 wrote:The site will draw a cross-section of the topography between your dad's house and the transmitter.
http://www.heywhatsthat.com/profiler.html
(Of course you will need to establish where the transmitter is.)
Zoom-in and re-centre until you can see both, then draw a line between the two.
The nearest ATC site is 3 miles south of Caister near Rothwell.
There are coastguard transmitters sites at the Humber Bridge and at Easington (:64).
That will enable you to see whether reception is likely be improved by a better or a higher mounted antenna.



Thanks for that! Worked a treat. I was tinkering last night with the indoor aerial and was picking strong signals up in the centre of town 12 miles away so i think external will help a lot.
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Re: Bit of xmas shopping advice required!:)

Postby m0lsx » Sun Dec 10, 2017 2:38 pm

One of the reasons I like a microphone/speaker on a handheld, is that it gives you the ability to hold the transceiver above your head & gain a few extra inches of height. And that at times can make a whole world of difference :biggrin: Although on other signals, no difference at all :(
Simply putting a slightly larger antenna in place will make a difference, as will removing the slight attenuation of having it indoors & then add in some extra height & I would suspect the gain will be noticeable. BUT, unless you keep the signal between antenna & radio it could all be lost. So make sure the coax you use is up to the job of VHF/UHF or all that money on brackets, masts & antenna etc will be wasted.
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Re: Bit of xmas shopping advice required!:)

Postby ex vp8ckp » Sun Dec 10, 2017 6:07 pm

im off work tomorrow and using that heywhatsthat I may head for high ground and see what i can pick up!
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Re: Bit of xmas shopping advice required!:)

Postby m0lsx » Sun Dec 10, 2017 10:47 pm

Get yourself on of those cup holders that hook onto the dashboard & so you can stand your handheld in it, with the antenna just above the dash. Then listen whilst you are driving around. It's what I often use & I get some good Close Call hits.
But high ground is the way to go.
Also for your area listen to the Lincoln 2 meter repeater. GB3LM, I can get into it with ease using just 10 watts mobile from the North West Norfolk Coast. It covers from Peterborough on the A1, basically through almost to Sheffield.
GB3LM 145.7250.
With Humberside Airport, I get aircraft in & out of there from here in Norwich.
Do you have Airradar 24 & shipping AIS? Both gives you the chance to see the traffic you are listening to.
I am on the wrong PC, to give you a link. But they are both linked to on here. Use the Google search link in my signature to find them.
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Re: Bit of xmas shopping advice required!:)

Postby ex vp8ckp » Thu Dec 14, 2017 10:04 pm

Well im down to a choice of two but can't quite make a decision lol.
Would there be much difference in performance between these two? The first one is neater with less things to work loose and drop off but im betting it will be the better of the two.?

https://www.amazon.co.uk/gp/product/B00 ... _x_2_w#Ask

https://www.rocketradio.co.uk/radio-sca ... -full-size
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