Thread: UHF Amplifier

But on the otherhand woud be a good option to have available as an emergency system if stuck out of range and not having a HF radio

Originally Posted by Outlaw

But on the otherhand woud be a good option to have available as an emergency system if stuck out of range and not having a HF radio

Unreliable, you couldnt receive to confirm reception of message.

Frequency is wrong, wont carry far enough - still line of sight...

Cheaper insurance would be a SSB 27meg system, even they are unreliable.

Tombraider

Originally Posted by Outlaw

But on the otherhand woud be a good option to have available as an emergency system if stuck out of range and not having a HF radio

G'day
This why i run a 32watt phillips and have done so for the last 7 years best uhf by far .

Good feedback guys, so it appears that I can reduce fuss, cost and still be legal with a higher antena on 5w or a 32w philips.

A comment on the 2 way radios, such as the typical one you pick from Tandy Dick Smith etc.. I've never used one and been happy with the clarity or reception, compared to a VHF Yaseu 5w amplified to 40w which I had overseas. So can you recommend any specific model you've had good experience with?

Originally Posted by Deffy

Good feedback guys, so it appears that I can reduce fuss, cost and still be legal with a higher antena on 5w or a 32w philips.

A comment on the 2 way radios, such as the typical one you pick from Tandy Dick Smith etc.. I've never used one and been happy with the clarity or reception, compared to a VHF Yaseu 5w amplified to 40w which I had overseas. So can you recommend any specific model you've had good experience with?

Probably not much help, as I have no new ones, but both my Landrovers have Uniden UH-077s one bought new, one from Cash Converters. Apart from a microphone replacement, no problems with either. Using a SS centre loaded whip on the bullbar in both cases. My tractor has a UH-001 and I previously had one in the 2a. These have a tendency for the display to go bad. My base station is an Electrophone TX 470T, also from Cash Converters, which has never given any problem.
John

Originally Posted by tombraider

Man, I lived in the 27meg / UHF heyday...

We ran 1000w linears on the 27meg sets and blew the people away (ever seen a 9 foot stainless glowing? we have) ran receive amplifiers, co-phased antennas...

Heck, we even mounted a home base 27 mhz antenna AND a 12 element UHF beam (with rotator) to a vehicle (and used it!!!!)

Been there, done that, its boring and pointless....

Theres no point using one, why shout to someone when they can only whisper back? Defies the point of 2 way communication.

I remember one the blokes I worked with in OTC once set up a amateur band transmission using one of the 30Kw transmitters at Doonside connected to one of the rhombic antennae that were aimed at the UK. On the receive side, he had a receiver at Bringelly connected via a similar rhombic antenna.

Now these rhombic antennae weren't small. They were hung from four 200 ft (60 metres) high masts set up in a diamond pattern (hence rhombic) and each leg of the antenna was probably a hundred metres or more long.

He did get reports back from the UK about being the best signal ever received from a VK (Australian) ham.

Ron

Originally Posted by p38arover

I remember one the blokes I worked with in OTC once set up a amateur band transmission using one of the 30Kw transmitters at Doonside connected to one of the rhombic antennae that were aimed at the UK. On the receive side, he had a receiver at Bringelly connected via a similar rhombic antenna.

Now these rhombic antennae weren't small. They were hung from four 200 ft (60 metres) high masts set up in a diamond pattern (hence rhombic) and each leg of the antenna was probably a hundred metres or more long.

He did get reports back from the UK about being the best signal ever received from a VK (Australian) ham.

Ron

mmmmmm in english ?


and thats why i drive a defender the simple things in life

Originally Posted by p38arover

I remember one the blokes I worked with in OTC once set up a amateur band transmission using one of the 30Kw transmitters at Doonside connected to one of the rhombic antennae that were aimed at the UK. On the receive side, he had a receiver at Bringelly connected via a similar rhombic antenna.

Now these rhombic antennae weren't small. They were hung from four 200 ft (60 metres) high masts set up in a diamond pattern (hence rhombic) and each leg of the antenna was probably a hundred metres or more long.

He did get reports back from the UK about being the best signal ever received from a VK (Australian) ham.

Ron

I remember in the early sixties (when there were no TV stations outside the capitals) I was living in Roma in Qld., and a bloke there set up a rhombic antenna tuned to the channel two frequency (a lot smaller than the one described because of the higher frequency, but still pretty big). He was able to receive channel two from Sydney, sufficiently well to see a picture, but definitely not good.
John