Radio reception with new H/U

[BOoStEr]

I'm going to fit an aftermarket H/U to my R32 which has the dual diversity antenna system with antennae in the front and rear windscreens. It has a two prong plug at the back of the factory H/U.

I've done a search but I'm still unsure what is the best way to change it over. It seems to me that the factory system is just adequate but not that good anyway. I guess that could be because the factory antennae are optimised to the slightly lower japanese frequency band or maybe antennae in the glass are more directional than a vertical antenna so reception varies depending on which way the car is headed.

Should I fit another antenna? If so, what type and where? or should I use the existing antennae and just buy an adapter for the plug? Is this good enough? I have my doubts.

What's your radio reception like?

[Chris Rogers]

I have the change over plugs. it will take the twin pin diveesity antenna and convert it to a std item that plugs into the radio.

pm me your address and I'll send it to you.

or email me

[email protected]

[BOoStEr]

How well do the Aerpro Dual diverity adapter plugs (Part No. AP 348A) work in the R32s?

Is there a better way to connect the stock antennae to an aftermarket deck?

[Cubes]

I've got an some kenwood cd deck that came with the car.

The receiption is much better than any other car I've had. That would be a TE 250 Cortina, VL NA Commodore, VS V8 Commodore.

[BOoStEr]

I've got an some kenwood cd deck that came with the car.

 

The receiption is much better than any other car I've had. That would be a TE 250 Cortina, VL NA Commodore, VS V8 Commodore.

Does the Kenwood accept the dual pin plug or has it been converted?

[Cubes]

I have no idea, it was in the car when I bought it.

The kenwood deck is the 4x45w one. Nothing special.

[xRHETTx]

where would i get one of these adapters? Jaycar? or a car sound place?

[Chris Rogers]

I sell them. $10 . booster it combines the external antenna and the on glass one. its a better way to do things than cutting off the plug and creating a grouind loop ( great for amplifiers -NOT!)

[AutoTrust]

Rhett, gimme a buzz if you need some help, I'm sure we can jiggy something up!

[BOoStEr]

Chris, The R32 doesn't have an external antenna, just the ones in the front and back windscreens. Do you know if these work well with the adapter?

[paulr33]

just goto jbhifi or audio barn and ask for a aeriel adapter for a nissan skyline import and theyll give you a $15 plug that will hook up to your twin prong aeriel and plug into your stock australian head unit and you can pick up normal 89.9 to 107fm

without that you can only get 77 to 88fm

[Edge]

You can go to supercheap auto too and order it in.

The aerpro doubble diversity adapter works really well.

The antenna you still get to control with the switch near your steering wheel.

The quality is beut - There really is no problem with the height of the antenna - it is merely optimised for stronger signals like in built up areas in Japan. When in area with a normal signal just put the antenna up and hey presto good reception.

You know the antenna is mounted on a slant - its good for high speed, mine still perfectly straight.

You know if you make the antenna longer it doesn't reduce its fm capability only makes it better. The frequency wavelength should be your guide. To give you an idea 104.9MHz is 1.2 metres size wave so if you want perfect reception make your antenna 1.2 metres long.

Understand this - The smaller the number MHz the bigger the size of the radio wave.

In theory this means you should use even longer antennas. However you will find the shorter antenna is able to take the sum of two halves or in the case of the skyline one the sum of three thirds - bits of the parts of the wave are summed to gether when the signal is strong enough and transmit the whole signal through it.

In short the antenna is perfectly fine the way it is.

Most other cars usually have to put the antenna up for weaker fm signals anyway. The difference is that the antenna is usually 0.5m long on the shorter setting realising the radio signals are weaker in general here they have made it about a half the shortest amplitude instead of a third.

Hope that helps.

[BOoStEr]

My R32 only has the antennae in the front and rear windscreen. There is no conventional aerial.

I bought an aerpro adapter today and it has a female socket for the stock dual diverity plug and then it splits into two wires. One has the standard male aerial plug as you would expect but the other has a standard female aerial socket and I don't know what it's for. Just to see how it works I checked it with a multimeter to see what connects to what. I found out only one of the dual diversity prongs connects to the male aerial plug that plugs into the HU. That means that only one of my antennae will be used. The other prong connects to the unused female socket so it seems to do nothing.

I hope that makes sense.

Can anyone tell me what the second wire with the female aerial socket is there for?

Thankyou.

[BOoStEr]

R32 owners, Hows your reception?

How did you hook up your aftermarket H/U. to the antennae?

Is there an antenna amp in R32s?

[Chris Rogers]

booster,

there is one. did you get the adapter sorted?

[BOoStEr]

Thanks Chris, yes I bought an Aerpro AP348A adapter. I just have a few Qs.

The male aerial plug is only hooked up to one diversity pin while the other pin is hooked up to a female aerial socket Why does the AP348A also have a female socket?

Are you saying there is a factory antenna amp in all R32s?

If so, does one of the wires at the back of the h/u need to be hooked up to power it?

Could the wire be the black/red one that is taped with the diversity antenna coaxes.

Either way it seems to me that with the AP adapter that you only get to use half of the diversity system ie. either the front or rear windscreen antenna but not both so surely the reception must be inferior to factory. As I live in an area where all the good radio stations have a weaker signal I need very good reception.

[Chris Rogers]

depends o the adapter . some of them use both antennas and in your case only one is used. the wire that is taped to the antenna cable is the amp.

connect it up to the remote on wire (blu/wht) or pwr ant ( blu) if you have one.

the whole concept of nissan diversity is that you have two antennas that pick up the signal and via a bit of creative circuitry in the radio they are combined for better reception. some of the upper end sony units had this as an option and they fitted these cars. ( can't remember which ones though.)

let me know if the above helps..

[BOoStEr]

Pity I didn't hook that wire up before I fitted my custom anti-thieving b*stard security brace. It takes an hour to remove the h/u.

Where is the amp?

Chris, Do you know if the amp boosts the front or back antenna or does it boost both?

Does the adapter connect the front or rear antenna?

Sorry for all the Qs. I guess I'm never happy until I understand how something works.

[Chris Rogers]

adapter uses the rear antenna - the front one isn't used.

amp location - NFI. just know theres one in it and it does the rear one.

I'll have to show you my version of 'antitheft'stereo... ( if you can find it!)