[ [ Abstract New multichannel radio error cor rections Odd/Even plan Add-A-Clip plan Flight Station cards NEW RCD ALL-CHANNEL TRANSMITTER RF MODULE written advance production item should available time column published FM transmitter module Hitec Master Challenger 720 series trans mitters everyone knows plug-compatible Futaba 0-series transmitters selects 80 frequen cies 72 75 MHz bands will narrow band FCC Type Accepted module will allow switchselect 72 MHz plus 75 MHz chan nels using two 0-9 switches inside surface module desig nate channel number desired 11-60 61-90 characteristics channels stored units memory mem ory automatically instructs transmitter generate selected frequency Yes must remove module choose channel similar module will available matching receiver receivers channel selector switches On/Off switch module connected receiver way cable gets around complaints about earlier Kraft sys tem dont have dig inside airplane change channel sched uled price $169 pair system different used old Kraft synthesizer much smal ler Accuracy S ppm claimed due fact characteristics RC channel frequencies loaded mem ory module laboratory standard gen erator controlled very precise ref erence crystal system does use analog synthesizer generate its frequen cies Kraft system did therefore RCD does want us call synthe sizer Car toy two- three-channel trans mitters cant use module because have no provision accept can use channel-switching module avoid long wait fly have compatible transmitter times have seven guys showed up field six channel happened fly just last week No doubt several fliers would have jumped chance buy channel-switching radio time RC sailors need three controls boats also fly airplanes module should very popular dont see problem having 72 MHz 75 MHz same transmitter since mistake selecting band wont accidentally shoot anyone down Im really eager see hope will display WRAM show White Plains New York Weak Signals show Toledo Ohio Dave Abbe told RCD receiver now continuous production says production line quality control tight need plug RCD crystal single-frequency RCD re ceiver order use no tuning ground-range check recommended case transmitter off frequency READER LETTERS ERROR CORRECTIONS clear recent letters phone calls big concern clubs area What shall 1991 far largest number clubs have voted require gold-stickered transmitters 1991 will also require narrow-band receivers other words clubs have decided bite bul let switch narrow-band radios soon possible common con cern will take time make hap pen looking interim plans have also received several reader letters commenting errors recent col umns fellow Operation Des ert Shield Error corrections get printed nobody ever uses correct back issues So errors live forever will use reply correct again well address some alternate ways deal interim period mentioned above To Mr John Lacey Minnetonka MN others Dear John Both letters arrived today envelope Model Aviation office saves time use home address appears column 1 text drawing correct October 1990 issue caption writer sub stituted negative put posi tive text drawing labels demonstrate 2 As wrote text three places two articles RCMA/AMA RF CHECK stickers required AMA insurance except flying sanc tioned competition caption writer left off qualifying phrase 3When printed black ink aluminum-colored paper RCMA/AMA sticker referred silver sticker denotes performance acceptable FCCs 1982 Type Acceptance criteria 4The same sticker coated transparent gold-colored disappearing ink referred gold sticker gold sticker denotes performance accordance AMA Guidelines Put piece Scotch tape over sticker preserve its gold 5 Yes AMA Guidelines have antic ipated FCC actions AMA has anticipaied FCC would establish Type Accept ance criteria compatible 10 kHz raster ever since mandated raster 72- 73-MHz band 1981 AMA spent some dues money hire pro fessional engineer define necessary properties narrow-band radio defi nitions became AMA Guidelines 6The sentence discussing channels 23 45 46 article Are ready 1991 December 1990 issue pg 43 improperly edited nothing wrong channels wrote old wideband AM what call OWBAM receivers 23 channel num bers other RC transmitters operating same area may suffer Second Order Intermodulation Interference ab breviate 21M example OWBAM receiver RC44 may see interference transmitter RC2 1 narrow-band receiver single-conversion type like JR ABC&W FM receiver will see 21M interfer ence AMA Guidelines being re written make point clearer though Guidelines have addressed problem beginning also wrote OWBAM receivers oper ating 45 46 channel numbers other RC transmitters operating same area may subject Image interference So receiver OWBAM RC12 may see interference transmitter RC57 RC58 Again narrow-band re ceiver will see interference problems old receivers Narrow-band receivers like yours wont bothered hope eases mind 7 People may telling chan nel mentioned taboo area cause have observed some kind inter ference 1991 receiver should have better resistance interference OWBAMs somebody tells problem always good idea proceed cautiously No receiver can totally reject interfer ence power level high enough 30 Model Aviation AC Flying Today 70 Froehllch Farm Rd HIcksvflIg NY 11801 should buy SR batteryand gives year warranty. pack Thats great question Usually people call us first time want know packs really worth $5 $6 price ordinary pack Theyve heard friends read R/C magazines packs best what really makes better fact make packs Space Shuffle Program Army Navy Marines Air Force NASA Lockheed Boeing name few might sound impressive However important thing packs make Military Aerospace Industry identical packs make use same cells same construction same testing same people over 10 years SR Batteries has leader R/C field Just few things make SR pack better Only SR uses screened matched Aerospace grade cells. Only SR guarantees pack never form memory Only SR puts pack through 5 days electronic testing make sure pack perfect. Only SR vibration tests pack. Only SR tests pack charge retention. welded internal external construction. SR packs can fast charged. SR packs give flying time less size lighter weight. Only SR will custom make size shape pack specifications no extra charge. Only SR maintains Hotline phone number can call help R/C problem question Well answer questions help select what need what dont place order receiver transmitter Electric Flight pack other Electric Flight needs just give us call 516 286-0079 send $3 new product technical Information guides both Electric Flight well Aerospace grade receiver transmitter battery packs open 9 5 Eastern Time Zone Monday through Friday SR BATTERIES INC BOX 287 BELLPORT NEW YORK 11713 516 286-0079 FAX 516 286-0901 interference will get through Havent observed strong local broadcast signal will break through station lis tening automobile receiver drive transmitter happens time 8 cross-responses AM FM signals reported what saw two particular receivers under test test results demonstrate point should try operate both AM FM system same channel Although encoding schemes different two transmitters channel will produce interference agree PCM systems resist such inter ference better other systems re mains obvious must use system prevents two transmitters operat ing channel encoding schemes different 9 See below alternative plans carry us through interim period until pre ponderance club members have narrow-band systems Thanks writing GMM THE ODD/EVEN PLAN simplest temporary way deal new odd-numbered channels RC 11 13 y clock Fly odd channels odd hours chan nels hours OWBAM receivers wont know new odd-channel systems use Odd-channel users can just take clip fly during 900 am 1100 am 100 pm 300 pm etc hours Im suming odd-channel transmitters receivers will narrow band Even-channel users must follow whatever plan has worked club past fly during 1000 am 1200 noon 200 pm 400 pm etc hours Im assuming even-channel users will include owners old equipment THE ADD-A-CLIP PLAN likely scheme mixed usage ADD-A-ClIP scheme flier responsible bringing own clip field marked name RC channel followed W still us ing obsolete wideband equipment its W person must tie additional clips first clip using long piece string clips will designate frequen cies must air same time order avoid interference Mark additional clips number channel 23 45 46 numbers away both above below own-transmitter channel turn fly put clips necessary channels block interference As example lets say flying wideband receiver channel RC56 Sub tract 23 tells you need tie clip marked RC33 can block possible 21M RC33 flying Subtract 45 tie another clip marked channel RC 11 can block possible Image interference RCl 1 flying What like about ADD-A-CLIP scheme puts onus wideband user look out himself practical standpoint likely place find wideband equipment channels RCl2 38 40 42 44 46 48 50 52 54 56 need consider 11 tied groups 56 11 54 2 0 8 6 23 44 2 0 17 38 2 57 People flying narrow-band receivers dont need extra clips FLIGHT STATION CARDS No matter designs card some fundamentals observed ma jor problem 1991 will old receivers want protect Image 21M following groups should placed flight station Only channel Continued page 136 April 1991 31 Covering Sig Koverall yellow black Sig dope Stab fin corners gently rounded cosmetics Per formance very nice smooth clean like full-sized aircraft Faster course climb too its rolls improved very much speed range being wide allows fly fairly fast go slow mode desired Klett 4-120 landing gear positioned axle lines up 4 -in behind front lead ing edge excellent ground handling its windy tail dragger does far better ground trike geared ship got much publicity Reason black tips like sometimes soar also wind surf idle RC Flying Today/Myers Continued page 31 flight station group allowed operate time A 11 57 35 B can combined station B 13 59 37 groups cant broken down following 23-channel pairs must kept together protect old receivers 21M show six flight stations can follow scheme get num ber stations example might combine A&B C&D E&F G&H get four flight sta tions basic ideas 1 Keep 23-channel pairs together avoid 21M 2 Keep adjacent channels together min imize possibility 31M interactions between wideband narrow band C 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 DCo offers similar cards already made up 50 channels using six flight sta tions 550-6 $5850 eight stations 5508 $7200 10 stations 550-10 $8500 well AMA Plan 1 S25AP-1 $4250 Plan 2 S37-AP2 Canopy Trim Exclusively Canopies Two Sizes Small 3/16 47 mm Large 1/4 64 mm Fourmost Canopy Trim flexible black vinyl strip preformed make perfect mounting trim canopies 4 Feet 122 meters per package Because the Canopy Trims unique shape flexibility will contour both flat round fuselages Canopy Trim secures canopy place well providing realistic black outline Canopy Trim may easily installed just razor blade CA adhesive Small Product No 139Large Product No 140 Price $295 FOURMOST PRODUCTS 503 3572732 $5150 cards contain chan nels use printed appropriate sta tion have know read numbers IDCo N8024 Elser Drive Beaver Dam Wi 53196 tel 414 885-3675 buddy Bob Aberle completely de scribes use flight station cards keep everything order article 50 Channels Finally December 1990 issue Flying Models magazine E responding advertisers mention read about Model Aviation 136 Model Aviation AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 714 826-6861 5501 WCOMO SANTA ANA CALIFORNIA 92703
Edition: Model Aviation - 1991/04
Page Numbers: 30, 31, 136
[ [ Abstract New multichannel radio error cor rections Odd/Even plan Add-A-Clip plan Flight Station cards NEW RCD ALL-CHANNEL TRANSMITTER RF MODULE written advance production item should available time column published FM transmitter module Hitec Master Challenger 720 series trans mitters everyone knows plug-compatible Futaba 0-series transmitters selects 80 frequen cies 72 75 MHz bands will narrow band FCC Type Accepted module will allow switchselect 72 MHz plus 75 MHz chan nels using two 0-9 switches inside surface module desig nate channel number desired 11-60 61-90 characteristics channels stored units memory mem ory automatically instructs transmitter generate selected frequency Yes must remove module choose channel similar module will available matching receiver receivers channel selector switches On/Off switch module connected receiver way cable gets around complaints about earlier Kraft sys tem dont have dig inside airplane change channel sched uled price $169 pair system different used old Kraft synthesizer much smal ler Accuracy S ppm claimed due fact characteristics RC channel frequencies loaded mem ory module laboratory standard gen erator controlled very precise ref erence crystal system does use analog synthesizer generate its frequen cies Kraft system did therefore RCD does want us call synthe sizer Car toy two- three-channel trans mitters cant use module because have no provision accept can use channel-switching module avoid long wait fly have compatible transmitter times have seven guys showed up field six channel happened fly just last week No doubt several fliers would have jumped chance buy channel-switching radio time RC sailors need three controls boats also fly airplanes module should very popular dont see problem having 72 MHz 75 MHz same transmitter since mistake selecting band wont accidentally shoot anyone down Im really eager see hope will display WRAM show White Plains New York Weak Signals show Toledo Ohio Dave Abbe told RCD receiver now continuous production says production line quality control tight need plug RCD crystal single-frequency RCD re ceiver order use no tuning ground-range check recommended case transmitter off frequency READER LETTERS ERROR CORRECTIONS clear recent letters phone calls big concern clubs area What shall 1991 far largest number clubs have voted require gold-stickered transmitters 1991 will also require narrow-band receivers other words clubs have decided bite bul let switch narrow-band radios soon possible common con cern will take time make hap pen looking interim plans have also received several reader letters commenting errors recent col umns fellow Operation Des ert Shield Error corrections get printed nobody ever uses correct back issues So errors live forever will use reply correct again well address some alternate ways deal interim period mentioned above To Mr John Lacey Minnetonka MN others Dear John Both letters arrived today envelope Model Aviation office saves time use home address appears column 1 text drawing correct October 1990 issue caption writer sub stituted negative put posi tive text drawing labels demonstrate 2 As wrote text three places two articles RCMA/AMA RF CHECK stickers required AMA insurance except flying sanc tioned competition caption writer left off qualifying phrase 3When printed black ink aluminum-colored paper RCMA/AMA sticker referred silver sticker denotes performance acceptable FCCs 1982 Type Acceptance criteria 4The same sticker coated transparent gold-colored disappearing ink referred gold sticker gold sticker denotes performance accordance AMA Guidelines Put piece Scotch tape over sticker preserve its gold 5 Yes AMA Guidelines have antic ipated FCC actions AMA has anticipaied FCC would establish Type Accept ance criteria compatible 10 kHz raster ever since mandated raster 72- 73-MHz band 1981 AMA spent some dues money hire pro fessional engineer define necessary properties narrow-band radio defi nitions became AMA Guidelines 6The sentence discussing channels 23 45 46 article Are ready 1991 December 1990 issue pg 43 improperly edited nothing wrong channels wrote old wideband AM what call OWBAM receivers 23 channel num bers other RC transmitters operating same area may suffer Second Order Intermodulation Interference ab breviate 21M example OWBAM receiver RC44 may see interference transmitter RC2 1 narrow-band receiver single-conversion type like JR ABC&W FM receiver will see 21M interfer ence AMA Guidelines being re written make point clearer though Guidelines have addressed problem beginning also wrote OWBAM receivers oper ating 45 46 channel numbers other RC transmitters operating same area may subject Image interference So receiver OWBAM RC12 may see interference transmitter RC57 RC58 Again narrow-band re ceiver will see interference problems old receivers Narrow-band receivers like yours wont bothered hope eases mind 7 People may telling chan nel mentioned taboo area cause have observed some kind inter ference 1991 receiver should have better resistance interference OWBAMs somebody tells problem always good idea proceed cautiously No receiver can totally reject interfer ence power level high enough 30 Model Aviation AC Flying Today 70 Froehllch Farm Rd HIcksvflIg NY 11801 should buy SR batteryand gives year warranty. pack Thats great question Usually people call us first time want know packs really worth $5 $6 price ordinary pack Theyve heard friends read R/C magazines packs best what really makes better fact make packs Space Shuffle Program Army Navy Marines Air Force NASA Lockheed Boeing name few might sound impressive However important thing packs make Military Aerospace Industry identical packs make use same cells same construction same testing same people over 10 years SR Batteries has leader R/C field Just few things make SR pack better Only SR uses screened matched Aerospace grade cells. Only SR guarantees pack never form memory Only SR puts pack through 5 days electronic testing make sure pack perfect. Only SR vibration tests pack. Only SR tests pack charge retention. welded internal external construction. SR packs can fast charged. SR packs give flying time less size lighter weight. Only SR will custom make size shape pack specifications no extra charge. Only SR maintains Hotline phone number can call help R/C problem question Well answer questions help select what need what dont place order receiver transmitter Electric Flight pack other Electric Flight needs just give us call 516 286-0079 send $3 new product technical Information guides both Electric Flight well Aerospace grade receiver transmitter battery packs open 9 5 Eastern Time Zone Monday through Friday SR BATTERIES INC BOX 287 BELLPORT NEW YORK 11713 516 286-0079 FAX 516 286-0901 interference will get through Havent observed strong local broadcast signal will break through station lis tening automobile receiver drive transmitter happens time 8 cross-responses AM FM signals reported what saw two particular receivers under test test results demonstrate point should try operate both AM FM system same channel Although encoding schemes different two transmitters channel will produce interference agree PCM systems resist such inter ference better other systems re mains obvious must use system prevents two transmitters operat ing channel encoding schemes different 9 See below alternative plans carry us through interim period until pre ponderance club members have narrow-band systems Thanks writing GMM THE ODD/EVEN PLAN simplest temporary way deal new odd-numbered channels RC 11 13 y clock Fly odd channels odd hours chan nels hours OWBAM receivers wont know new odd-channel systems use Odd-channel users can just take clip fly during 900 am 1100 am 100 pm 300 pm etc hours Im suming odd-channel transmitters receivers will narrow band Even-channel users must follow whatever plan has worked club past fly during 1000 am 1200 noon 200 pm 400 pm etc hours Im assuming even-channel users will include owners old equipment THE ADD-A-CLIP PLAN likely scheme mixed usage ADD-A-ClIP scheme flier responsible bringing own clip field marked name RC channel followed W still us ing obsolete wideband equipment its W person must tie additional clips first clip using long piece string clips will designate frequen cies must air same time order avoid interference Mark additional clips number channel 23 45 46 numbers away both above below own-transmitter channel turn fly put clips necessary channels block interference As example lets say flying wideband receiver channel RC56 Sub tract 23 tells you need tie clip marked RC33 can block possible 21M RC33 flying Subtract 45 tie another clip marked channel RC 11 can block possible Image interference RCl 1 flying What like about ADD-A-CLIP scheme puts onus wideband user look out himself practical standpoint likely place find wideband equipment channels RCl2 38 40 42 44 46 48 50 52 54 56 need consider 11 tied groups 56 11 54 2 0 8 6 23 44 2 0 17 38 2 57 People flying narrow-band receivers dont need extra clips FLIGHT STATION CARDS No matter designs card some fundamentals observed ma jor problem 1991 will old receivers want protect Image 21M following groups should placed flight station Only channel Continued page 136 April 1991 31 Covering Sig Koverall yellow black Sig dope Stab fin corners gently rounded cosmetics Per formance very nice smooth clean like full-sized aircraft Faster course climb too its rolls improved very much speed range being wide allows fly fairly fast go slow mode desired Klett 4-120 landing gear positioned axle lines up 4 -in behind front lead ing edge excellent ground handling its windy tail dragger does far better ground trike geared ship got much publicity Reason black tips like sometimes soar also wind surf idle RC Flying Today/Myers Continued page 31 flight station group allowed operate time A 11 57 35 B can combined station B 13 59 37 groups cant broken down following 23-channel pairs must kept together protect old receivers 21M show six flight stations can follow scheme get num ber stations example might combine A&B C&D E&F G&H get four flight sta tions basic ideas 1 Keep 23-channel pairs together avoid 21M 2 Keep adjacent channels together min imize possibility 31M interactions between wideband narrow band C 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 DCo offers similar cards already made up 50 channels using six flight sta tions 550-6 $5850 eight stations 5508 $7200 10 stations 550-10 $8500 well AMA Plan 1 S25AP-1 $4250 Plan 2 S37-AP2 Canopy Trim Exclusively Canopies Two Sizes Small 3/16 47 mm Large 1/4 64 mm Fourmost Canopy Trim flexible black vinyl strip preformed make perfect mounting trim canopies 4 Feet 122 meters per package Because the Canopy Trims unique shape flexibility will contour both flat round fuselages Canopy Trim secures canopy place well providing realistic black outline Canopy Trim may easily installed just razor blade CA adhesive Small Product No 139Large Product No 140 Price $295 FOURMOST PRODUCTS 503 3572732 $5150 cards contain chan nels use printed appropriate sta tion have know read numbers IDCo N8024 Elser Drive Beaver Dam Wi 53196 tel 414 885-3675 buddy Bob Aberle completely de scribes use flight station cards keep everything order article 50 Channels Finally December 1990 issue Flying Models magazine E responding advertisers mention read about Model Aviation 136 Model Aviation AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 714 826-6861 5501 WCOMO SANTA ANA CALIFORNIA 92703
Edition: Model Aviation - 1991/04
Page Numbers: 30, 31, 136
[ [ Abstract New multichannel radio error cor rections Odd/Even plan Add-A-Clip plan Flight Station cards NEW RCD ALL-CHANNEL TRANSMITTER RF MODULE written advance production item should available time column published FM transmitter module Hitec Master Challenger 720 series trans mitters everyone knows plug-compatible Futaba 0-series transmitters selects 80 frequen cies 72 75 MHz bands will narrow band FCC Type Accepted module will allow switchselect 72 MHz plus 75 MHz chan nels using two 0-9 switches inside surface module desig nate channel number desired 11-60 61-90 characteristics channels stored units memory mem ory automatically instructs transmitter generate selected frequency Yes must remove module choose channel similar module will available matching receiver receivers channel selector switches On/Off switch module connected receiver way cable gets around complaints about earlier Kraft sys tem dont have dig inside airplane change channel sched uled price $169 pair system different used old Kraft synthesizer much smal ler Accuracy S ppm claimed due fact characteristics RC channel frequencies loaded mem ory module laboratory standard gen erator controlled very precise ref erence crystal system does use analog synthesizer generate its frequen cies Kraft system did therefore RCD does want us call synthe sizer Car toy two- three-channel trans mitters cant use module because have no provision accept can use channel-switching module avoid long wait fly have compatible transmitter times have seven guys showed up field six channel happened fly just last week No doubt several fliers would have jumped chance buy channel-switching radio time RC sailors need three controls boats also fly airplanes module should very popular dont see problem having 72 MHz 75 MHz same transmitter since mistake selecting band wont accidentally shoot anyone down Im really eager see hope will display WRAM show White Plains New York Weak Signals show Toledo Ohio Dave Abbe told RCD receiver now continuous production says production line quality control tight need plug RCD crystal single-frequency RCD re ceiver order use no tuning ground-range check recommended case transmitter off frequency READER LETTERS ERROR CORRECTIONS clear recent letters phone calls big concern clubs area What shall 1991 far largest number clubs have voted require gold-stickered transmitters 1991 will also require narrow-band receivers other words clubs have decided bite bul let switch narrow-band radios soon possible common con cern will take time make hap pen looking interim plans have also received several reader letters commenting errors recent col umns fellow Operation Des ert Shield Error corrections get printed nobody ever uses correct back issues So errors live forever will use reply correct again well address some alternate ways deal interim period mentioned above To Mr John Lacey Minnetonka MN others Dear John Both letters arrived today envelope Model Aviation office saves time use home address appears column 1 text drawing correct October 1990 issue caption writer sub stituted negative put posi tive text drawing labels demonstrate 2 As wrote text three places two articles RCMA/AMA RF CHECK stickers required AMA insurance except flying sanc tioned competition caption writer left off qualifying phrase 3When printed black ink aluminum-colored paper RCMA/AMA sticker referred silver sticker denotes performance acceptable FCCs 1982 Type Acceptance criteria 4The same sticker coated transparent gold-colored disappearing ink referred gold sticker gold sticker denotes performance accordance AMA Guidelines Put piece Scotch tape over sticker preserve its gold 5 Yes AMA Guidelines have antic ipated FCC actions AMA has anticipaied FCC would establish Type Accept ance criteria compatible 10 kHz raster ever since mandated raster 72- 73-MHz band 1981 AMA spent some dues money hire pro fessional engineer define necessary properties narrow-band radio defi nitions became AMA Guidelines 6The sentence discussing channels 23 45 46 article Are ready 1991 December 1990 issue pg 43 improperly edited nothing wrong channels wrote old wideband AM what call OWBAM receivers 23 channel num bers other RC transmitters operating same area may suffer Second Order Intermodulation Interference ab breviate 21M example OWBAM receiver RC44 may see interference transmitter RC2 1 narrow-band receiver single-conversion type like JR ABC&W FM receiver will see 21M interfer ence AMA Guidelines being re written make point clearer though Guidelines have addressed problem beginning also wrote OWBAM receivers oper ating 45 46 channel numbers other RC transmitters operating same area may subject Image interference So receiver OWBAM RC12 may see interference transmitter RC57 RC58 Again narrow-band re ceiver will see interference problems old receivers Narrow-band receivers like yours wont bothered hope eases mind 7 People may telling chan nel mentioned taboo area cause have observed some kind inter ference 1991 receiver should have better resistance interference OWBAMs somebody tells problem always good idea proceed cautiously No receiver can totally reject interfer ence power level high enough 30 Model Aviation AC Flying Today 70 Froehllch Farm Rd HIcksvflIg NY 11801 should buy SR batteryand gives year warranty. pack Thats great question Usually people call us first time want know packs really worth $5 $6 price ordinary pack Theyve heard friends read R/C magazines packs best what really makes better fact make packs Space Shuffle Program Army Navy Marines Air Force NASA Lockheed Boeing name few might sound impressive However important thing packs make Military Aerospace Industry identical packs make use same cells same construction same testing same people over 10 years SR Batteries has leader R/C field Just few things make SR pack better Only SR uses screened matched Aerospace grade cells. Only SR guarantees pack never form memory Only SR puts pack through 5 days electronic testing make sure pack perfect. Only SR vibration tests pack. Only SR tests pack charge retention. welded internal external construction. SR packs can fast charged. SR packs give flying time less size lighter weight. Only SR will custom make size shape pack specifications no extra charge. Only SR maintains Hotline phone number can call help R/C problem question Well answer questions help select what need what dont place order receiver transmitter Electric Flight pack other Electric Flight needs just give us call 516 286-0079 send $3 new product technical Information guides both Electric Flight well Aerospace grade receiver transmitter battery packs open 9 5 Eastern Time Zone Monday through Friday SR BATTERIES INC BOX 287 BELLPORT NEW YORK 11713 516 286-0079 FAX 516 286-0901 interference will get through Havent observed strong local broadcast signal will break through station lis tening automobile receiver drive transmitter happens time 8 cross-responses AM FM signals reported what saw two particular receivers under test test results demonstrate point should try operate both AM FM system same channel Although encoding schemes different two transmitters channel will produce interference agree PCM systems resist such inter ference better other systems re mains obvious must use system prevents two transmitters operat ing channel encoding schemes different 9 See below alternative plans carry us through interim period until pre ponderance club members have narrow-band systems Thanks writing GMM THE ODD/EVEN PLAN simplest temporary way deal new odd-numbered channels RC 11 13 y clock Fly odd channels odd hours chan nels hours OWBAM receivers wont know new odd-channel systems use Odd-channel users can just take clip fly during 900 am 1100 am 100 pm 300 pm etc hours Im suming odd-channel transmitters receivers will narrow band Even-channel users must follow whatever plan has worked club past fly during 1000 am 1200 noon 200 pm 400 pm etc hours Im assuming even-channel users will include owners old equipment THE ADD-A-CLIP PLAN likely scheme mixed usage ADD-A-ClIP scheme flier responsible bringing own clip field marked name RC channel followed W still us ing obsolete wideband equipment its W person must tie additional clips first clip using long piece string clips will designate frequen cies must air same time order avoid interference Mark additional clips number channel 23 45 46 numbers away both above below own-transmitter channel turn fly put clips necessary channels block interference As example lets say flying wideband receiver channel RC56 Sub tract 23 tells you need tie clip marked RC33 can block possible 21M RC33 flying Subtract 45 tie another clip marked channel RC 11 can block possible Image interference RCl 1 flying What like about ADD-A-CLIP scheme puts onus wideband user look out himself practical standpoint likely place find wideband equipment channels RCl2 38 40 42 44 46 48 50 52 54 56 need consider 11 tied groups 56 11 54 2 0 8 6 23 44 2 0 17 38 2 57 People flying narrow-band receivers dont need extra clips FLIGHT STATION CARDS No matter designs card some fundamentals observed ma jor problem 1991 will old receivers want protect Image 21M following groups should placed flight station Only channel Continued page 136 April 1991 31 Covering Sig Koverall yellow black Sig dope Stab fin corners gently rounded cosmetics Per formance very nice smooth clean like full-sized aircraft Faster course climb too its rolls improved very much speed range being wide allows fly fairly fast go slow mode desired Klett 4-120 landing gear positioned axle lines up 4 -in behind front lead ing edge excellent ground handling its windy tail dragger does far better ground trike geared ship got much publicity Reason black tips like sometimes soar also wind surf idle RC Flying Today/Myers Continued page 31 flight station group allowed operate time A 11 57 35 B can combined station B 13 59 37 groups cant broken down following 23-channel pairs must kept together protect old receivers 21M show six flight stations can follow scheme get num ber stations example might combine A&B C&D E&F G&H get four flight sta tions basic ideas 1 Keep 23-channel pairs together avoid 21M 2 Keep adjacent channels together min imize possibility 31M interactions between wideband narrow band C 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 DCo offers similar cards already made up 50 channels using six flight sta tions 550-6 $5850 eight stations 5508 $7200 10 stations 550-10 $8500 well AMA Plan 1 S25AP-1 $4250 Plan 2 S37-AP2 Canopy Trim Exclusively Canopies Two Sizes Small 3/16 47 mm Large 1/4 64 mm Fourmost Canopy Trim flexible black vinyl strip preformed make perfect mounting trim canopies 4 Feet 122 meters per package Because the Canopy Trims unique shape flexibility will contour both flat round fuselages Canopy Trim secures canopy place well providing realistic black outline Canopy Trim may easily installed just razor blade CA adhesive Small Product No 139Large Product No 140 Price $295 FOURMOST PRODUCTS 503 3572732 $5150 cards contain chan nels use printed appropriate sta tion have know read numbers IDCo N8024 Elser Drive Beaver Dam Wi 53196 tel 414 885-3675 buddy Bob Aberle completely de scribes use flight station cards keep everything order article 50 Channels Finally December 1990 issue Flying Models magazine E responding advertisers mention read about Model Aviation 136 Model Aviation AIR WOLF EPOXY FIBERGLASS FUSELAGES TAKES MOST 50-60 MECHANICS OTHER MODELS AVAILABLE LARRY JOLLY MODEL PRODUCTS $21000 714 826-6861 5501 WCOMO SANTA ANA CALIFORNIA 92703