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sP-g40

SPEAKER

We're happy that you've chosen the Model SP-940for y o u r r e c e i v i n gn e e d s . l t h a s u n d e r g o n e s t r i n g e n t q u a l i t y c o n t r o l i n s p e c t i o na n d t e s t s p r i o r t o p a c k i n g a n d h a s l e f t o u r f a c t o r y i n p e r f e c t o p e r a t i n g c o n d i t i o n . P l e a s ei n s p e c t y o u r S P - 9 4 0c a r e f l l y f o r a n y s i g n so f d a m a g e i n t r a n s i t . u I f t h e u n i t i s d a m a g e d ,i m m e d i a t e l yn o t i f y t h e s a l e sr e p r e s e n t a t i v ef r o m w h o m y o u p u r c h a s e d h e u n i t . t

I CONTROLS ND THEIRFUNCTION A

I GENERAL YourSP-940 a sophisticated is external speaker designed

t o f u r t h e r e n c h a n c e o p e r a t i o n o f H F T r a n s c e i v e r s .l t f e a t u r e s p r e c i s ea u d i o r e s p o n s ea n d m a t c h e st h e T r i o - K e n w o o d H F t r a n s c e i v e ri n a p p e a r a n c e .l t s a d v a n t a g e s r e : a i t B u i l t - i n s e l e c t a b l eo n e f i l t e r s t t o a t t e n u a t eh i g h o r l o w f r e qu e n c y r e s p o n s ei n p u t s ; ')F T w o c h a n n e l s e l e c t a b l e n p u t a n d t h e h e a d p h o n eo u t p u t i th rough the tone f ilters.

Front Panel PHONES onnector c h e t S t a n d a r d e a d p h o no u t p u t ,t h r o u g h h e t o n e f i l t e r s . S @ TNPUT witch S e l e c t o n e o f t w o a u d i oi n p u t s . s FILTERSHIGH 1 Switch , @ f above3.0 k1z; -3 This switch attenuates requencies d B a t 3 . 0k H z . H @ FtLTEFtS,tcH2. This switch attgluates t*_qgeryiqq_ab_ove 1,?__KHz; *3 d B a t 1 . 2k H z . e @ F t L T E R S ,L o w S w i t c h T h i s s w i t c ha t t e n u a t efs e q u e n c i e s l o w4 0 0 H z ;- 3 d B r be at 400 Hz. N o t e : h e n t h i s s w i t c h i s u s e dw i t h t h e H l GH 1 a n d W ab H I G H 2 O N , f r e q u e n c i e s o v e9 0 0 N z ; - 3 d B at 900 Hz are atten uated.

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F SPECI ICATIONS used: Speaker 1 0c m d i a . RatedInput: 1 Watts lmpedance: Bo Frequency : response 1 6 0H z t a 7 k H z . Filter cut-off f requency, LOW: 400H2, 3d B, H I G H1 : 3 . 0 k H z ,- 3 d B H I G H2 : 1 . 2k H z , - 3 d 8 . H I G H 1 + H I G H2 : 9 0 0 H 2 - 3 d B . , -6dB/oct. Filterattenuation: Dimensions: W . 1 8 0m m ( 7 - 1 1 6 " ) 1 H . 1 4 0m m ( 5 - tl 2 " l D . 2 B Bm m ( 11 - 1 1 3 " ) Net weight: . 1. 9 k s . ( 4 . 2 l b s ) Accessories rnished fu : S p e a k ec o r d , 1 p c . r ( E 3 01 7 1 1 -5 ) 1 , l p i np l u g 1 p c . (E14-0101-05)

PACKING P l e a s es a v e t h e s h i p p i n g c a r t o n s a n d p a c k i n g m a t e r i a l . f T h e y h a v e b e e n d e s i g n e do r t h e s a f es h i p p i n go f y o u r u n i t . l T h e r e w i l I b e c o n s i d e r a by l e s sc h a n c e o f d a m a g e i f y o u s h i p y o u r u n i t i n i t s o r i g i n a l c a r t o n s a n d p a c ki n g .

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R E A RP A N E L C @ I N P U Tc o n n e c t o r s a rces. A c c e p t s u d i oo u t p u tf rom two sou @ L I N EO U T c o n n e c t o r l S t a n d a r di n e o u t p u t t h r o u g ht h e f i l t e r sf o r R T T Y , u SSTV or similar se. ,

F C USING OMBINED ILTERS th 1 . W h e n b o t h H I G H 1 a n d L O W f i l t e r sa r e e n g a g e d , e passbandwidthranges from 400 Hz to 3.0 kHz. band2. Whenboth H IGH 2 and LOW f iltersare engaged, w i d t h i s4 0 0 H z t o 1 . 2k H z . b 3 . H I G H 1 , H I G H 2 a n d L O W f i l t e r sa r e e n g a g e d ,a n d width is 400 Hz to W0 Hz.

400H2

I eg0t_lz ZkAz 3.0kHz

HIGHHIGH I-]IGH 1,2 2 1

USE OF FILTERS t I n g e n e r a li , i s d e s i r e dh a t a C W ,A M , o r s i m i l a t r a n s t r m i s s i o nb e r e c e i v e d l e a r l yw i t h i n t h e u s u a lc o m m u n i c a c , , t i o n a u d i o b a n d w i d t h3 0 0 H z ^ ) 3 k H z . H o w e v e rO R M , O RN o r RF I m a y l o w e rt h e o v e r a l s i g n a l - t o - n o ir a t i o a t l se t h e r e c e i v e rr,e s u l t i n gn d e g r a d e r e c e p t i o nI.n t h e o r y ,a s d i width of the IF stages nairowed, equithe the pass-band is v a l e n tn o i s e a n d w i d t h i l l a l s on a r r o w t h u si m p r o v i n gh e b w , t at o s i g n a l - t o - n o irs e i o .A l t e r n a t e l yt,h e b a n d w i d t h f t h e A F stagecan be narrowed attenuate to the noisecomponent, enhancinreception. g P r o p e r f i l t e r s e l e c t i o n e p e n d s n t r a n s m i s s i om o d e d o n a n d t y p e o f n o i s ee n c o u n t e r e d . , 1 . S S B :u s et h e H I G H 1 a n d L O Wf i l t e r s o r t h e H I G H 2 use and LOW f ilters.In more severe cases, both H IGH 1 + H I G H 2 , a n dL O Wf i l t e r s . 2 . C W : u s et h e H I G H 1 a n d H I G H 2 t i l t e r s r H I G H 1 + o H I G H 2 a n d L O Wi n c o m b i n a t i o n .

I

T F R O N TF E E T

convenience T h e f r o n t p a n e l c a n b e e l e v a t e dfor operating by extending the front feet. Turn the front feet left and pull down. Then turn right to lock.

IN PUT -r-A I -

t'''-l

LINE OUT FlLTERS ItiI PUT HIGH I

I sr-l

HIGHI

PHONES Ht6H z

l-*-l

r{tGH 2

LOW

tr4-l

LOW

SPEAKER 8n

O T U R NL E F T @ P U L LD o w N @ LocK RIcHT

KENWOOD CORPORATION

ShionogiShibuyaBuilding,17-5,2-chomeShibuya, Tokyo150 Japan Shibuya-ku,

KENWOOD U.S.A. CORPORATION g0g1o 2201 Dominguez Long E. street, Beach, california u.s.A. KENWOODELECTRONICS DEUTSCHLAND GMBH

RembruckerStr. 15,6056 Heusenstamm, WestGermany Mechelsesteenweg B-1930 Zaventem,Belgium 418

KENWOODELECTRONICS BENELUXN.V.

(tNcoRPoRATED N.S.W.) tN 4E. Woodcock Place, Lane Cove, N.S.W. 2066 Australia

KENWOODELECTRONICS AUSTRALIAPTY. LTD.

) C , l b 8 o b p R I N T E Dt N J A P A N B s 0 - 8 0 0 6 - 3 0 ( K M

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