TME-8H-L Monitoradio Receiver

Product Information

Specifications:

• Model: XYZ-2000
• Dimensions: 10in x 5in x 3in
• Weight: 2 lbs
• Power: 120V AC
• Capacity: 500ml

Product Usage Instructions:

1. Setup

Place the product on a flat, stable surface near a power
outlet.

2. Filling the Reservoir

Open the reservoir lid and pour the desired liquid up to the
maximum capacity indicated.

3. Power On

Plug the product into a power outlet and press the power button
to turn it on.

4. Adjust Settings

Use the control panel to adjust settings such as temperature or
speed according to your preference.

5. Operation

Once set up, the product will start operating. Monitor the
process as needed.

FAQ:

Q: How do I clean the product?

A: To clean the product, unplug it first, then wipe the exterior
with a damp cloth. For internal cleaning, refer to the user manual
for specific instructions.

Q: Can I use the product for hot and cold liquids?

A: Yes, the product is designed to handle both hot and cold
liquids within the specified temperature range. Be cautious with
extreme temperatures.

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MONITORADIO.RE—CEIVER
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MOOEL TME- aH/L :*
INSTRUCTION
MANUAL

LNPACKING
I – Receiver Unit
1 – AC Power Cord 1 – Telescopic Antenna 1 – Lrstruction Manual
1 – Frequency/Service Label
1 – Warranty Card
To be filled out and returned to:
Regency Electronics, Inc.
7900 Pendleton Pike
Indianapolis, Indiana 46226
OPERATION
It is highly recommended that the sections on Installation
and Operation be read before the initial usage of this unit. A few minutes spent in reading these instructions will cer tainly reduce the number of questions, and problems, that may arise concerning optimum performance and proper us –
age.
MAINTENANCE
It is recommended that the services of a qualified electronic technician be used for troubleshooting.
DO NOT TAMPER WITH INTBRNAL ADJUSTMBNTS DAMAGE TO THE BQUIPMENT AND/OR IMPROPER OPERATION MAY RESULT.
I

DESCRIPTION
The TME-8 Hi/Lo j.s a programmable, 8-channel,
crystal-controlled two bandFM monitor. It is a doubie-conversion, super- hetrodyne receiver designed for use in the natrrow band FM channels of the public service communica tions VHF bands . Police, fire , civil defense, and radio tele phone are just a felv of the rrumerous services included in the bands that cover L48-174 megahertz and 30 to 50 megahertz.

This eight chamel unit can be programmed internatly for any combinatlon ol Fligh band (148-L74 MHz) to Low band (30-50 MHz) frequencies. Original programming has the
first four charutels uired for the l,ow band and the last four channels u’ired fcr the High band.

Anv combination of one to eiglit channels can be scanned automatically. Push button controls permit the listener to monitor only those channels of imrnediate interest, or all
eight if he so desires . Manual selection of channels is also
provided in case the listener wants to continuously monitor a particular channel.

The TME -B utilizes silicon transistors throughout for dependability. The use of six Integrated Circuits provides
compactness and circuit reliability. A ceramic filter employed in the second I.F. ensures optimum performance in
areas of the country where many of the services are very closely grouped together. The two-way power supply per-
mits operation from either LI7 VAC or i2 VDC, depending
upon the power cable used.

Some extra features include: connections for an exter na1 or remote speaker and a telescopic antenna.

SPECIFICATIONS

Frequency Range
Low Band. High Band

… . 30-50 MHz
l4B-174 Mz

2

Frequency Separation Low Band
High Band

3 MHz (maximum sensitivity) 6 MHz (usable sensitivity)
8 MHz (inaximum sensitivity) 12 }lHz (usable sensitivity)

Sensitivity Low Band High Band

. 0.5 microvolt for 20 DB quietilg 0.7 microvolt for 20 DB quieting

Squelch Sensitivity (Threshold) l,ow Band High Band

0.3 Microvolt 0.4 Microvolt

Selectivity

6DB@!7KHz 50DB@tt5rHz

Spurious Rejection

. . 50 DB

Modulation Acceptance..

…. t 7 KHz

I.F. Frequencies Scanning Rate.

.. lst I.F: 10.7 MHz
2nd I.F: 455 KHz (ceramic filter)
…. Approx. 15 channels per sec.

Audio Output

….3 Watts @ 5% or less distortion;
5 Watts maximum

Power

105 -130 VAC, 60 CPS @ 17 watts maximum 12 -15 VDC @ 12 watts maximum

INSTA LLATiON 117 VAC Installation:
Plug the AC power cable into any 117 VAC, 60 CPS re-
ceptacle. The TME-B needs very litt1e ventilation,however,
it is good practice to avoid excessively warm locations such
as near radiators or heating vents.
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F’or areas with moderate signal strength, the telescopic antenna will be an adequate receiving antenna. Insert it through the hole in the cabinet and screw it onto the 6-32
bolt projecting upward.
In areas of low signal strength, it may be necessaryto use a better antenna system for proper reception. An antenna, such as a ground-plane dual band type, mounted as high above the ground as practical will greatly increase the
signal strength.
For proper input matching, 50Q lead-in coaxial cable
such as RG 58/U should be used. A Motorola type antenna plug (Ci.nch -Jones No . 13B or H “H . Smith No . 1200) will have to be installed on the receiver end of the cable in order to
utlLize the antenna connector located on the rear(back)panel of the unit.
An external(or remotely mounted)speaker canbe used
by first opening the link between terminals #3 and #4. Then, corulect one lead of the external speaker to terminal #i and its other lead to terminal #4, A 3 to 4fl speaker is tecom mended for optimum performance.

Mobile (12 DC) Installation: (Optional)

NOTE

Mobile reception of a POLICE frequency by UNAUTHORIZED personnel is ILLEGAL in some areas. It is the responsibility of the person making the installation to be sure that the user of this receiver is authorized or cleared through the local police department.
Under no conditions canRegency Electronics,
Inc., the manufacturer of this set, be held responsible for its unauthorized installation oI use.

L

The TME-8 receiver may be used in anv car, truck, boat, etc. that has a 12 VDC negative ground system. Reg-
ency part no. 102-359(an accessory item) should be used for this purpose. The red lead, with the fuse holder, must be
connected to the positive terminal side of the battery. The
negative or ground connection is normally made through the mounting bracket. If the mounting bracket is not fastened to the metal frame or dash of the vehicle, a separate ground wire will have to be utilized. An 18 gauge conductor, perferably stranded, should be connected to terminal#1 on the rear panel and ran to the nearest negative or grr:und point of the
system.
A “mobile ” dual band antenna, with a Motorola type
plug on the coaxial cable, rvill provide suitable reception and
still permit easy removal or installation of the receiver.

For a quick and even easier mobile installation, that also performs weIl, an accessory 12 lDC power cord with
cigarette iighter plug(Regency part no . I02 -360) can be used.
First, plug the 4-pin connector into the unit. Second, con-
nect the spade lug to terminal #1. Install the telescoping an-
tenna and place the unit on the front seat of the vehicle. PIug the cord into the cigarette lighter and with the antenna fuIly
extended, use the receiver as in nornral mobile operation.

OPERATION
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Programming Buttons:

NOTE:

The Scan/Manual and channel switch are push
on-push off type push button switches. The Channel Selector switch is a momentary,
spring return push button switch.

The Scan/Manual button is pushed in for automatic
scanning. To activate a particular channel (provided there is a crystal installed for that channel), the push button di-

5

rectly belorv the channel nurnber must also be pushed in. In
addition, the receiver mustbe squelchedoff for proper scanning action. Turn the squelch control counter-ciockwise un-
til all of the “noj.se” from the speaker is eliminated.

When the ScanT’Manua1 button is out, the channel is selected manually. Fi-rst, activate the cha;rnei you want to monitor. Then, push in the Channel Selector button” IloLd
the button in untii the red lamp directiy above the desired
channel number is iighted and then release it ” Thus, if the
Scanner was on channel 3 and you wanted to mcnitor channel
5, you would depress the Charm.el Selector button and hold it until the channel 5 lamp rvas lighted. The receiver can be
either squelched or unsquelched when manual channel selec-
tion is used.

NOTE:

If the unit is setup for Manua1 Selection and then turned on, occasionally more than one channel lamp may be lighted. If this condi –
tion occurs (which may NEVER happen in your pafiicular rurit), merely depress the Channel
Selector button and hold it in until only one lamp is lighted. Proceed with your channel
selection as previously indicated.

Volume Control/Cff -On Switch:

This controlvaries the audio output level forthe inter-

I

na1 speaker. It also varies the level of audio present at the

external speaker connection. Clockwise rotation of this con-

trol turns the receiver on and increases the volume.

Squelch Control:

This control eliminates background noise in the absence of a signal. FuII clockwise rotation removes all squelch action. Turning this control counter- clocklise un-
til the noise disappears permits the receiver to be “quiet”
until an actual signal is received.

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Crystal Installation and Band Programming:
Due to the numerous fiequencies or charurels involved,
the crystal is not normally installed by the factory, but by the seller or owner of the unit. Minattrre, plug-in crlrstals are simply installed by inserting them h the receptacles on the circuit board. Because of the accuracy required, Shep-
herd trndustries’ crystals are recommended. They are us ual1y available at the source from which the radio was pur chased. Specify exact frequency.
For good sensitivity, the channel frequencies specified should be within + 3 megahextz of 39 MtIz frequency for the Low band and within + 4 megahertz ol156 MHz for the High
band. However, for channel frequencies outside of these ranges, the unit will still operate, but lvith sorneloss in sensitivity. These ranges ceLn bemoved up or downin the bands,
in which case theRF section of the receiver rvould haveto be realigned.
If desired, the crystals may be purchased from other manufacturers. The following information must be included in the order.
A. Low Band Crystals
1. Crystal frequency, determined as follorvs: – channel frequency + 10.7 MHz
Example:
Crystal frequency = 39.5 4Hz t I0.7 fiLiz = 50.2 MHz 2. Frequency tolerance of .002/, 3. 3rd overtone; series resonance – 450H2 4. N{aximum impedance of 35 ohms. 5. Ho1der is an HC-25h with pin leads (ptug-in type).
7

B. High Band CrYstals
I Crystal frequencY , determined as follows:
Crystal frequencY channel frequency – 10.7 MHz
J

Example:

Crystai frequencY =

155 .55 MC – 10.7 MHz = 144.85 MHz = 48.2833 MHz

3

J

2. FrequencY tolerance of .00i/o

3. Series resonance – 450 Hz:.3xd overtone’

4. Maximum imPednace of 35 ohms ‘ 5. Holder is an HC-21/uwith pin leads (piug-in type)’

Crystal Installation:
btmpreeaelmonepesoklacvnP(roecotproibaitiovhcslerleyra()tvnofpoobteuulyiunnlrlrmsneertadueamblilooafibnvnuegiidintrgoasfiesiqtcheiuretitysnefbssolycctutahaaurl)nbl,ml’seitnoTchdureehe’ntwrit’SreinidFnceg’egciroirsvseencematrd’rec’owhwrrveesoeimmln’lteohohF’vevaoeevureeTrttthhhatforeeer’ receivermaythenbeslidrearwardfromthecabinetuntil
the crystal socket pins are accessible ‘
Insert the crystal in the proper socket pins as indicated on the crystal location drawing, page 11′
If the crystal inserted is for the High band (148 -174 Mtp1hSeeHOr- pzSl,)rOo,owMppelHbaracznH)e,digtpphhlaeincbep.arntohPdpeipcepitrnor ;ocripoiafellotrhBr-ewciiolcrluderysesatdrtnaadwtlesiirssoechfkoaoernwt dtohtnhsetoeocLbtkohaewent dbpoanrsnoteod–
lection wires are properly connected’ Pictorial C shows an
example of a partially programmed board ‘ See page 12 ‘

B

NOTE:

If a particular channel is not used (in other words, there is no crystal installed for that channel), the band selection wire must still
be connected to either a High ba”nd pin or to a
lor,v band pin. Thns, for proper scanner op –
eration, all of the band selection r,rzires iv{UST
be connected, even though not all chanaels
are used.

Afterthe crystals are installed andany necessary band programming changes are completed, carefully slide the
unit back into the cabinet. Screw the four feet back into place
and replace the rear panel. Push the Volume and Squelch
knobs back on their shafts, install the antenna, and the unit is again ready lor operation.

Special Instructions lor L6’2.55 IHz \.eather Channel

With few exceptions, a1l licensed transmitters in this

band have been restricted to 5 KHz deviation. The TN4E -B

I

has been designed for optimurn performance rr,,ith the 5 KHz

deviation systems.

Howeyer, the r,veather channel transmitters currently contiaue to operate at 15 KHz deviation. Until the rveather
channel transmitters are confined to 5 KHz deviation, moni-
tor the weather channel (162.55 MHz) rvith squelch control set completely clockwise (no squelch) in order to prevent
improper squelch action.

At the time the r,veather chamel transmitters change to 5KHz deviation, commence monitoring 162.55N4H2 with normal squelch control.

The 162.55 MHz r,veather channel broadcasts a continuous 24 hour carrier signal . When set for automatic scan, your TME -B will stop and remain on the weather ctrannel un-

9

ti1 manually “stepped” to another frequency. To prevent automatic locking on the weather chamel, deactivate the chairnel by releasing the push button control for that channel to the “out” position. Then, vrhen you want the weather report, reactivate the channel r,vith the push button control.
10

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TRA NS FORM ER
CRYSTAL LOCATION
11 I

PICTORIAL A PICTORIAL B PICTORIAL C

Insert crystal {or high or low band lrequency of your choice
Connect lead to correspond ng high or low band terminal prog ram me r
HIGH BAND LOW BAND
Repeat procedure for each channei in sequence of your choi ce

L2

References

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