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I don't know but will take a guess - I expect the radio is a vintage am/fm transistor radio. The am antenna is likely to be a ferrite rod tuned directional type that will be inside the cabinet.
The fm antenna might be a single core wire that dangles from the set in the way commonly used by many fm radio-alarm clock-radios. This performs the same function as the single telescopic antenna of portable radios without the cost and similarly is connected internally to the first rf stage. Sometimes due to age, mishandling or ignorance the dangling wire is lost or cut off.
A higher quality table radio (not designed to be portable) is equipped with a facility to connect a 300 ohm balanced antenna, a 75 ohm fm antenna or both.
The 300 ohm type connects to a pair of screws accessible at the rear without removing any covers and is usually an indoor type. The 75 ohm type plugs in with a standard coax plug and could be either an indoor type or an outdoor type.
A matching transformer is available to use a 75 ohm antenna with a 300 ohm input. The 300 ohm type is highly directional in horizontally polarised signal areas and is not always convenient to use.
Radio Shack has an adapter catalog number 278-0291. It takes some effort to push the 278-0291 adapter onto the FM UNBL 75 ohm terminal so wait until you have the 278-0291 installed before you connect your 75 ohm coax on to your new adapter.
This will resolve your FM screw on F connector antenna interface issue.
I see others trying to help suggest using a 300 ohm to 75 ohm transformer match unit, this isn't what is needed. Your receiver antenna input IS a 75 ohm input.
You didn't list your receiver model number, but here's a generic picture of how you would connect an indoor FM dipole antenna to a Kenwood receiver. These antennas should be available at most home improvement stores or from Radio Shack. They cost around $10.00, maybe less.
Depending on your model, you may have use some adapters. Ask the store staff for help.
Hi,
If it is a plug, it is probably the PAL connector so you would need a PAL female on your coax lead.
There is a great reference at the FM Antenna Connector and Adapter Guide with pictures:
FM Antenna and Connector Guide
Lake
FM DX Antenna Co
You need to find a 'break' in the antenna cable to put the FM direct inline. In SOME cars, if you remove the glove compartment you can see the antenna cable and 2 connectors where it connects inside the dash behind the glove compartment. That is a perfect spot for tying-in the FM Direct. IF not, you have to pull the whole radio out and connect between the radio and the incoming antenna cable. You may need an adapter as almost every manufacturer since GM in 1989 started making their own bastard antenna plugs and jacks instead of the standard universal "Motorola Plug" antenna jack that was used for 40 years, and is used in and out of the FM Direct. Let me know if you need more help.
Your scanner has four connections on the back. Looking at the rear, from left to right, are the power jack (10 volts AC, you need an adapter for this), an external speaker jack, the AM antenna connection, and the scanner antenna jack.
The AM antenna jack is for the reception of AM radio station signals. The scanner antenna jack is for police/fire etc, as well as FM signals.
In case you don't have a manual for your radio, it is available for free here:
FM band expanders are available on eBay. They will expand the FM band from 76Mhz - 90Mhz range to the 88Mhz - 108Mhz frequency range. Try eBay Australia, under "FM expander".
They fit very simply inline on your antenna wire (plug inline) and there's only one wire to connect to 12V + power supply... very easy to DIY.
Product Specs:General:Product TypeRadio antennaRecommended UseIndoorWidth3 inDepth16.9 inHeight3.5 inColorBlackLocalizationEnglishAntenna:Wave BandAM, FM / FM: 87.5 - 108 MHz, 540 - 1700 kHzImpedance75 OhmGain Level42 dBAmplifierBuilt-inIncluded AccessoriesConnector coupler, impedance transformerConnections:Connector Type1 x FM antenna ¦ 1 x AM antennaPower:Power DevicePower adapter - externalManufacturer Warranty:Service & Support1 year warrantyService & Support DetailsLimited warranty - 1 yearlet me know how this works out for u
You should use the direct FM box to get the static to go away. You unplug the antenna from the radio, plug the antenna lead from the box into the radio, the antenna line plugs into the box. You will have a mini jack that plugs into your radio or dock.
This way you can switch it on any station to get rid of the static.
You shouldn't need to take the dashboard out to get to the radio. Usually you have to take the trim pieces in front of the radio to get the antenna line out.
Sometime you can reach it from the back of the radio if there is enough clearance to get cak there.
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