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 HDF400 - LMR 400 Equivalent 
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Post HDF400 - LMR 400 Equivalent
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Good Morning Guys .....

After reading up on 'specs', and needing co-ax that was better than RG213 for 2 Metres and 70cms on a long 25 Metre run, I eventually plumped for some 'HDF 400' - I bought it from a company called 'Aughton Wireless', after some Emails back and forth, and really helpful advice from Alan, the owner.

In fact the losses of this cable are half of RG213, and it is certainly a tad thinner and a lot more flexible. You can look at the specs, and the Co-ax here..... HDF 400

I also needed two 'N' connectors and ordered them at the same time (Yesterday). 8am this morning Parcelforce delivered it, and with the 'N' connectors soldered on each end, and 'shrink sleeved' on the cable.
He had also included a length of Self Amalg Tape !! - I dare not tell him I have rolls of the stuff, but a kind thought !!

Amazing !! - Rare service in this day and age in UK !!


Wed Jan 04, 2012 9:50 am
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
As I said in the previous thread I use it here and I'm more than satisfied with it especially with the saving.
Had the connectors not already been in place you've would've seen it's composition up close yourself. I'd love to see the specs on this cable,
http://www.diodecomms.co.uk/product_inf ... 180d6c4ee2
...as I'd hazard a guess it's the same stuff but for a lot more money. ;)

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Wed Jan 04, 2012 10:09 am
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
Well I'm after something more flexible than westflex 103 so I'll order some of this. Its got similar loss figures so I suppose it'll do.

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Wed Jan 04, 2012 10:23 am
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
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Thanks Gerry - my decision to go for this cable was influenced by your post in the other thread.

The Specs, and most co-ax specs to compare are on the link I posted above, down the page - Certainly, Diode Comms are twice the price of the guy I bought mine from.

Now all I have to do, is to get out there in the 'weather' to :

1. re-erect my wind-damaged HF Vertical (replace bent poles) and replace RG58 with RG213

2. erect my new X50 2M & 70cms on another set of poles and connect up the HDF 400

Easy for most folk - it has to go over the roof of my 'Old Farts Bungalow' - but I am now 76 and have little mobility in my lower legs, coupled with the 'shakey' Parkinsons Disease!! I have several 'Ham' friends who would do it all for me, but I am a cussed old sod, and where I can, I like to do things for myself - even if it is a struggle, and an hours work takes me a couple of days !!


Wed Jan 04, 2012 10:25 am
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
i've just sent them a message asking for a price. I too might be buying some coax from them :)

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Wed Jan 04, 2012 10:40 am
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
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Chris - get an accurate length you need, and let him fit the connectors. It costs a few bob, but he makes a far better job of it than I could do - even before I caught my Parkinsons !! LOL He seems to have only 'N' connectors, so if you want PL259's, you may have to send them to him.


Wed Jan 04, 2012 10:49 am
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
G3OBU wrote:
.


Chris - get an accurate length you need, and let him fit the connectors. It costs a few bob, but he makes a far better job of it than I could do - even before I caught my Parkinsons !! LOL He seems to have only 'N' connectors, so if you want PL259's, you may have to send them to him.

If you really need it to be 259s, your best option is to use an adaptor.
Any reasonable antenna should come with an N type, so, at the radio end you can use an adaptor or tail.

Cheers

Tony

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Wed Jan 04, 2012 11:17 am
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
I have N's at the radio and N's on the antenna but I suck at fitting N's. I've got 259's to N for the radio and for the antenna at the moment.

I will also need to go through a wall so will end up having coax joins. If I've already got coax outside with 259's on the end I was thinking of a 259-259 doubler.

Yes that is a lot of loss but I don't really want to splash even more money buying another FULL run of coax when in a few months the shack will be moving from upstairs to downstairs anyway.

I should really drill a flipping huge hole in the wall and put some drain pipe in it and feed cables that way.

I s'pose I could get N's on each end and then an N-239 adaptor. That sounds better. I would assume that would give another 0.01db less loss or something!

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Wed Jan 04, 2012 11:32 am
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
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Chris ...

That is eactly what I am doing .... The X50 Vertical I have bought has an 'N' Connector - so OK at that end.

At the 'shack' end, I will have the 'N' connector I don't need, but I need a PL259 to go into my IC-746PRO to use it on VHF as well as HF, and an SMA to feed on my handheld, so I have ordered 'N' to each of these adaptors.

A little inconvenient to keep moving the coax from one set to another - I am now thinking of an antenna switch that will have a low loss at VHF/UHF, so I can switch between the two without having to keep altering the pluggery !! Can you get such an animal ?? Remeber I need a two way - with 'N' in and 'outs' to SMA and PL259 !! - I only see lots of plugs and adaptors, and losing loads of dbs !!!


Wed Jan 04, 2012 11:54 am
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
is that 400 cable not solid core ???

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Wed Jan 04, 2012 12:04 pm
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
ei2glb wrote:
is that 400 cable not solid core ???


Yes is it but it's much more flexible than 103, not as flexible as 213 or probably ecoflex.
edit, just checked it there and it's as pliable as the 213.
Edit that again, in second thoughts no it's not. Whereas it bends into as tight a diameter as 213 (and if anything bends easier), it doesn't unravel again as easily as 213 so it's not as pliable. :blush:

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Wed Jan 04, 2012 12:07 pm
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
2e1hje wrote:
I have N's at the radio and N's on the antenna but I suck at fitting N's. I've got 259's to N for the radio and for the antenna at the moment.

I will also need to go through a wall so will end up having coax joins. If I've already got coax outside with 259's on the end I was thinking of a 259-259 doubler.

Yes that is a lot of loss but I don't really want to splash even more money buying another FULL run of coax when in a few months the shack will be moving from upstairs to downstairs anyway.

I should really drill a flipping huge hole in the wall and put some drain pipe in it and feed cables that way.

I s'pose I could get N's on each end and then an N-239 adaptor. That sounds better. I would assume that would give another 0.01db less loss or something!

I would look at perfecting the fitting of N types .
A much better connector both mechanically and electrically.
They also, unlike a 259, are reasonably water resistant, due to the compression seal.
For joining cables us an N male to N female combination.
Again, mechanically and electrically. good plus reasonably protected from water ingress, even before the self amalg tape.
Attachment:
ntypes.jpg
ntypes.jpg [ 90.96 KiB | Viewed 1532 times ]

Remember to wrap with self amalg and that there is a right and a wrong direction to wrap.
The self amalg should be stretched and wound in the direction which results in the stretch tightening the screw fitting, not slackening it.

Cheers

Tony.

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Wed Jan 04, 2012 12:45 pm
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
..

Tony said ... The self amalg should be stretched and wound in the direction which results in the stretch tightening the screw fitting, not slackening it.

Thanks for that Tony .... Obviously, I knew about stretching it, but not about the direction of the wind. I also wind the Self Amalg so that it overlaps downwards - just a little bit 'belt and braces', but its another barrier as I see it against water ingress.


Wed Jan 04, 2012 1:00 pm
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
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Just had this comment back through Ebay - regarding my 'Positive' feedback and Nice words I put on Ebay ...

Might be interesting ....
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
"It is very nice to see some positive feedback about me, and I hope too of the products that I sell.
Being a radio ham myself I thought the coax was a fantastic alternative to other quality coax out there, at a much more affordable price too.

Good luck with your hobby
73
Alan
2E0GYO


Wed Jan 04, 2012 1:06 pm
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 HDF400 - LMR 400 Equivalent 
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Post Re: HDF400 - LMR 400 Equivalent
G3OBU wrote:
..

Tony said ... The self amalg should be stretched and wound in the direction which results in the stretch tightening the screw fitting, not slackening it.

Thanks for that Tony .... Obviously, I knew about stretching it, but not about the direction of the wind. I also wind the Self Amalg so that it overlaps downwards - just a little bit 'belt and braces', but its another barrier as I see it against water ingress.

I start the wind about an inch before the connector and finish an inch or so after.
Two layers.
If it's permanent, in my setup nothing is permanent :D , I'd overwrap it with PVC to keep the UV off the self amalg and prevent it from degrading.

Cheers

Tony

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Wed Jan 04, 2012 1:29 pm
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