Where can I get an FM aerial for a radio

I haven't heard of a radio/tv combo since the demise of vhf tv.

A reasonable radio reception could be derived from the vhf tv signal making a usable unit without the bother of an additional aerial. For use with uhf tv the radio would probably need an additional aerial for decent fm radio reception - unless the radio is am only...

You don't say how old your combo is or give any details. I think the screw terminals could be intended to be connected to a 300 ohm balanced dipole aerial for radio reception only or to mount a loop aerial for indoor tv reception only, if the tv is intended for uhf analogue reception.

If the tv isn't equipped with a standard socket for the usual 75 ohm coaxial type aerial lead it is possible the set manufacturer originally supplied an adaptor to fit to those two screws in order to provide a regular aerial socket.

Without a much more detailed description, these are the only comments I am able to make.

You might be picking up a spurious signal (that is being bounced from something) as well as the main signal and your radio is processing both - one signal will be a small fraction of a second behind the other.

When this happens to a tv signal it manifests as on-screen ghosting. This used to be fairly common in the days when tv was transmitted in the vhf band, in spite of highly directional aerials being used.

Many FM aerials are omnidirectional and if that is the type of aerial you are currently using it could be a large part of your problem. I suggest you try a directional aerial with as many reflectors as your local aerial specialist suggests.

The aerial should be mounted at a suitable height to clear nearby buildings and aimed exactly at the transmitter you want to receive. The aerial should also be "polarised" correctly - if the transmitter antenna is horizontal then so should the receiving aerial. If the transmitter uses a vertical polarisation then the receiving aerial should be fitted with the reflectors vertical.

Coaxial cable isn't hugely expensive and so buying good cable won't break the bank. 75 ohm air-spaced double-wrapped might seem overkill for a radio but it is worth the extra as it will lose less signal and more importantly it will collect less noise and interference.

This may not be very easy. Presuming that the aerial cable was already there and there was a standard plug on the cable that fitted into your standard socket on the radio, and presuming that you are confident that it all fitted OK, then the problem is with a faulty cable or aerial.

Just before you start, can I suggest that you DO test the radio and check that there is no fault in it. Particularly if you have removed an old radio with perfectly good reception. You might want to take it back to the shop and ask them to hook it up and test it for you. If the radio is clearly good, then my thoughts are as follows:

Typically the fault will eventially trace down to a portion of the outer copper brading in the cable being in contact with the inner core that carries the radio signal. This is usually right at the end in the plug and it's worth cutting off the plug and refitting a new one as a first step (You might even be able to carefully bare the inner core of the cable and push it into the cernre hole in the socket of the radio and test it before the new plug is fitted).

The second area of failure is typically the point at which the cable reaches the car aerial. It's not uncommon for water to get into a seal wher it is attached to the body and affect the performance of the aerial. Once again, you MAY be able to snip the cable at this end and re-make a nice clean dro connection. I have to be honest and say I don't know how the fitting go in this vehicle, so I'm shooting in the dark a little here. Obviously, if the vehicle has a built in aerial in the windscreen or back window somewhere, then my last suggestion is pretty redundant.

Finally, having tried to re-make connections at both ends of the cable, it's potentially time to buy a new aerial and cable and re-fit the whole thing from end to end. This is not a very fun job!

Assuming its broken outside the unit: most aerials are very similar to fit, serving the exact same function and not worth the cost of locating the exact same one used for your model due to time, and purchase costs.
Find an old transitor radio with similar sized aerial, ie length and diameter to fit your radio. Measure it and the replacement from an old radio you or a friend does not need.
Purchase a small screwdriver to remove and refit aerial to your grundig. Small sets of screwdrivers can be bought cheaply from discount stores, ebay etc.

Is this what you need? http://cgi.ebay.com/4pc-Gold-Plated-Aerial-Female-Aerial-Female-Adapter-/180435080974?pt=LH_DefaultDomain_0&hash=item2a02c4d70e
although I would be surprised if the signal you have would be correct to supply your fm tuner, you may be better off with something like this (depends on how good your fm signal is locally) http://cgi.ebay.com/FM-AERIAL-KIT-RADIO-RECEIVERS-BALUN-UNIVERSAL-/310283558296?pt=LH_DefaultDomain_3&hash=item483e575d98#ht_2068wt_876
Alternatively, and I know this sounds crude, poke a long piece of wire into the centre of the aerial socket on your tuner and pin it to the wall or a door frame, it often works if you have a decent signal to begin with.

as for the am radio you need to connect the am aerial to pick up am frequencies as for the cd player need a bit more info on that

WhatHiFi forum provided the solution by recommending the right connection which turned ot to be a standard co-axial one.

The loop antenna is for AM. The FM connection is just like the speaker hook up. Pull down the tab and insert the bare wire.
Hope this helps. If not let me know
Kurt

For trial purpose you and use an old electrical cord . Strip the insulation off about 1/2 in and insert it into the connections on the back

The FM aerial input is simply just a female banana socket.
For FM reception, you can use any thin insulated wire, keeping it clear as possible from TV screens, fluorescent tubes, to minimize interference.
For the plug, strip end of wire 2 in (50.8 mm) long, fold bared part back on itself to form a U-loop about 1 inch 25.4 mm long, squeeze it a bit so end is V-shaped, insert into socket.
Long wire boosts signal strength.
A matchstick can help to secure the wire in socket.
EDIT:
Best to try get hold of the proper FM single-wire antenna which has 75 ohms matched impedance and correct plug for best signal.
If AM reception is required, you need an AM loop antenna.
For more details, visit
manualslib.com

yes try Metraonline.com