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New Antenna


mayon

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Hi. I live in Margate north of Brisbane and have just joined the digital revolution with a Topfield 5000. Works well but suffers from audio dropouts,so I thought I might try building a digital only antenna for bands 3&4 as I have some aluminium tube in the shed. I was thinking of cutting a diapole of around 750mm for band 3 and one of 250 for band 4. Does any one have any ideas for reflector/ director lengths and spacings, or any thoughts would be appreciated.

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I went through the same exercise, exen had all the tubing out on the garden table, then, a guy in Bris, "access" put me on to a log periodic dipole, i bought it, cheaper than making one myself, from him, http://www.tv-antennas.com/index1.htm or from Laceys in Vic, http://www.laceys.tv/ .

Fracarro LP345HV, band 3-4-5,ch 6-69, no diplexer or balun needed, coaxially matched in the bottom boom, about 10dB gain.

73s

VK6 . ...-

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I went through the same exercise, exen had all the tubing out on the garden table, then, a guy in Bris, "access" put me on to a log periodic dipole, i bought it, cheaper than making one myself, from him, http://www.tv-antennas.com/index1.htm or from Laceys in Vic, http://www.laceys.tv/ .

Fracarro LP345HV, band 3-4-5,ch 6-69, no diplexer or balun needed, coaxially matched in the bottom boom, about 10dB gain.

73s

VK6 . ...-

I hope Coral is planing a celebration!

Geting closer to 2000 posts on the Fracarro LP345HV George.

Must be a great piece of equipment!

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I live in Margate north of Brisbane and have just joined the digital revolution with a Topfield 5000. Works well but suffers from audio dropouts

Optical digital audio from the Toppy is prone to this. I had to disconnect mine - after spending about $35 on a Toslink cable :P:blink:

So now I am forced to use just analogue audio from the Toppy until either Topfield or HN or I get around to sorting this - and a few other Toppy problems - out. (They are lucky that I also have a Dodgytec HD box to enjoy my favourite programs live - plus DD5.1 on the rare occasions that our broadcasters use it).

[Edit]

Stop Press: I just saw in another thread that my Toslink problem might be traceable to my japanese receiver (an Onkyo TX-SR800). I hadn't thought of this before because there are 3 coaxial digital audio inputs in the receiver that cause no problems for the Dodgytec and DVD player.

[/Edit]

Edited by ijd
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Optical digital audio from the Toppy is prone to this.

I wouldn't assume that the optical output is the reason - I get dropouts via both optical to an A/V Receiver and normal stereo through the TV. It does seem worse via the optical, but that may be because the receiver is less able to handle glitches in the digital signal, while the analogue audio can ride out more glitches in the signal.

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