rjk@mgweed.UUCP (Randy King) (05/19/85)
<><><> I am soliciting advice and comments on the following. I live in a fringe area for most of the good FM stations that broadcast from Chicago. I can receive these broadcasts easily on my radio that connects to my TV antenna, but clock radios and walkmans get little or nothing. I think what I need is a limited area FM transmitter so that I can use my walkman while out on the tractor. It's a two hour job to mow and I sure would like to listen to the radio (note: radio, not tapes!). I'd also like my other radios playing my choice of music which includes other FM stations, discs, or reel tapes from the stereo. Here is my wish-list: *) stereo hi-Z audio inputs *) range of about 500' radius (is this legal?) *) signalling input; i.e. maybe I can detect a phone ringing or some other signal and 'beep' my remote radio. I sure would appreciate any pointers on available equipment, legal req's, similar experience, how-would-you-do-its, and any other comments. Please try to mail to me, even if you post a followup. Randy King AT&T-CP@MG ihnp4!mgweed!rjk
parnass@ihu1h.UUCP (Bob Parnass, AJ9S) (05/19/85)
x
Sounds like you need to connect the headphone output
jack of your indoor receiver (the one that can hear the
stations you want) to the input connection of a "Mr.
Microphone" or some other type FM wireless microphone.
Radio Shack sells a kiddie's toy for $6.95 [#60-2109],
but I don't know its transmission range. The catalog
also lists a "Wireless FM Mini Tie-Clip Mike" for
$19.95 [#33-1076], but the range is specified as 250
feet outdoors. This scheme only provides you with
monaural reception.
I've used a wireless intercom on 200 kHz for a local
area relay from the livingroom to the bedroom rather
than running wires.
If you're not fussy about fidelity, you could use a
pair of toy 49 MHz walkie-talkies, dedicating one to
full time transmission, and one for reception. You'll
have to contend with nearby cordless telephones on the
same frequency. The latest John J Meshna catalog1
lists a 49.86 MHz walkie-talkie board on page 56 for
$1.50 [H41A-26].
> Subject: FM Broadcast band repeater
>
> I am soliciting advice and comments on the following. I live in a fringe
> area for most of the good FM stations that broadcast from Chicago. I can
> receive these broadcasts easily on my radio that connects to my TV antenna,
> but clock radios and walkmans get little or nothing.
>
> I think what I need is a limited area FM transmitter so that I can use my
> walkman while out on the tractor. It's a two hour job to mow and I sure
> would like to listen to the radio (note: radio, not tapes!). I'd also like
> my other radios playing my choice of music which includes other FM stations,
> discs, or reel tapes from the stereo. Here is my wish-list:
>
> *) stereo hi-Z audio inputs
> *) range of about 500' radius (is this legal?)
> *) signalling input; i.e. maybe I can detect a phone ringing
> or some other signal and 'beep' my remote radio.
>
> I sure would appreciate any pointers on available equipment, legal req's,
> similar experience, how-would-you-do-its, and any other comments. Please
> try to mail to me, even if you post a followup.
__________
1. John J. Meshna, Jr., Inc. 19 Allerton Street, Lynn, MA
01904. Tel: (617)595-2275.
--
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Bob Parnass, Bell Telephone Laboratories - ihnp4!ihu1h!parnass - (312)979-5414hanson@ihu1m.UUCP (R. J. Hanson) (05/22/85)
> Radio Shack sells a kiddie's toy for $6.95 [#60-2109], > but I don't know its transmission range. It's transmission range is about 5 feet ! At least while my stereo is hooked up to the outside antenna, any FM station, even Wisconsin/Indiana, can knock Mr. Microphone off the air! Driven from 1 AA battery, if my memory serves me correctly, it's not worth the $6.