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Hy-Gain Hy-Range III 672B, Instruction Manual

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Hy-Gain Hy-Range III 672B Instruction Manual Download Page 4

Citizens

Two-way

Receiver Section

Circuit

type

dual conversion

superheterodyne

with

RF stage and 455 kHz ceramic filter

Frequency

23 crystal-controlled

channels

in the

27 MHz Citizens

Band

Sensitivity

0.7 IlV for

10 dB (S

+

N)/N

ratio

IF

frequency

1st

IF:

11.275

MHz

2nd

IF:

455 kHz

3

watts

maximum

into

external

speaker jack

about 300 mA on Standby

(no signal)

CB Transmitter

Section

Frequency

....

23

crystal-controlled

channels

in 27

MHz Citizens

Band.

5 watts

4 watts

8A3

Power input

...

RF Power output.

Emission

.

Modulation

.

Range boost

.

all harmonic

and spurious suppression

better

than

Federal Com'munications

Commission

and Department

of Com-

munications

(DOC) requirements.

AM, 90% typical

yields

high

average

modu lation

at

average

voice

levels

less than 1.2 amp

nominal

50 ohms impedance

12 DVC nominal

Transmitting

current

drain

Antenna

.

Power source

.

Summary of Contents for Hy-Range III 672B

Page 1: ......

Page 2: ...els without the need of additional crystals or adjustments This unit also features a fine tune control allowing you to make adjustments for stations which may operate slightly off frequency Additional features include a NB Noise Blanker AN L Automatic Noise Limiter switch which reduces unde sirable noises and a public address system which utilizes the micro phone and the audio stages within the tr...

Page 3: ...ANLi NOISE BLANKER SWITCH MODULATION LAMP SIGNAL STRENGTH RF POWER METER POWER CORD DC 12V FUSE HOLDER EXTERNAL SPEAKER JACK ANTENNA CONNECTOR ...

Page 4: ...ack about 300 mA on Standby no signal CB Transmitter Section Frequency 23 crystal controlled channels in 27 MHz Citizens Band 5 watts 4 watts 8A3 Power input RF Power output Emission Modulation Range boost all harmonic and spurious suppression better than Federal Com munications Commission and Department of Com munications DOC requirements AM 90 typical yields high average modu lation at average v...

Page 5: ...ce of your transceiver or may in fact cause your unit to operate beyond the limitations set forth for Class 0 citizens two way transceivers by the F C C General Considerations Before installing the transceiver in a car truck boat etc be sure to choose a location which is convenient to the operating controls and will not interfere with the normal functions of the driver The trans ceiver may be moun...

Page 6: ...lock The red lead should be connected to the metal firewall or any other point that is connected to the vehicle chassis ground Antenna Connection The antenna should be connected to the transceiver by means of coaxial cable Either RG 58 u or RG 8 u coaxial cable may be used The cable should be terminated with a PL 259 coaxial connector Screw the PL 259 coaxial connector onto the antenna jack Cautio...

Page 7: ...he engine off Then start the engine Ignition noise will probably be present at all engine speeds If it is severe it may make a normally readable signal unreadable To reduce ignition noise install resistor type spark plugs if these are not already installed If non resistance ignition wiring is used install a 10 k ohm suppressor resistor at each spark plug tower of the distributor Install a coaxial ...

Page 8: ...l infor mation is available in the Radio Amateur s Handbook published by the ARRL The Hy Gain 672B transceiver does contain a noise blanker for reduc tion of impulse noise However to get the best reception noise suppression steps should be taken at the source of the noise ...

Page 9: ...ACH SPARK PLUG WIRE i R r 5 E SPARK PLUG BREAKER POINTS O lI F COAXI tf I F COAXIAL INNER FENDER WALL SELF TAPPING SCREW and LOCK WASHER typical SELF TAPPING SCREW and LOOK WASHER typical FERROUS BRACKET purchased seperp tely or hand formed ...

Page 10: ...e counterclockwise position the squelch action is progressively increased and stronger signals are needed to overcome it To receive extremely weak signals or to disable the squelch circuit simply turn the control fully counterclockwise RF Gain Control This controls RF gain when receiving To increase RF gain reception sensitivity turn the knob clockwise and to decrease turn counter clockwise Channe...

Page 11: ...obile But when operating as a base station you may also find it very helpful Don t confuse the action of a noise blanker with a noise limiter Noise limiters only clip off the peaks of the noise so that it is not as annoying This is helpfu I but a noise blanker is much more effective It actually turns the receiver off momentarily so that no noise at all is heard When this switch is placed in the AN...

Page 12: ...r to the PA jack on the rear panel 2 Set the CB channel selector in the PA position 3 Press the push to talk button on the microphone and talk into the mic Your voice will be heard from the external speaker which may be mounted on the exterior of a car boat or building NOTE The volume control on the transceiver can also control the PA speaker output during PA operation ...

Page 13: ......

Page 14: ...hes bigger in all three dimensions than the unit Fill the carton equally around the unit with resilient packing material shredded paper excelsior etc Seal it with gummed paper tape tie it with a strong cord and ship it by prepaid express United Parcel Service or insured parcel post to the Hy Gain Service Center It is very important that the shipment be well packed and fully insured Damage claims m...

Page 15: ...n shall carry only such warranty as is available from the manufacturer of such goods and are specifically excluded from Hy Gain war ranties This warranty is void if Hy Gain shall inspect equipment and find that it hasbeen modified or improperly installed or used This warranty is expressly in lieu of all other warranties expressed or implied and all other obligations or liabilities on the part of H...

Page 16: ......

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