George Ma Myers Receiver Controlinterferer Transmitter - 2OFeet ~i4-20to80 Feet 4-Very Good BOFeet Very Bad - George Steines quick field testfor receiver 31 M performance its synthesized test use anothertransmitteron RC channel RC5O represent what can produced mixture two transmitters other RC channeis such RC52 RC54 case LET ME introduce George P SteIner Sacra mento CA George member AMA Frequency Committee retired communica tions engineer well-equipped elec tronic toolsincluding personal spectrum analyzer George does RC repairs under name GSP George Steiner Products George has kept very busy past two years performing hundreds laboratory tests RC systems Frequency Commit tee interesting result testing has found test results match Aberle/ Myers field test results Bob have reporting Continued page 26 RC52 Transmitter Transmitter RC5O 31M Signs RC Channels Affected 9 48 50 5254 Heres interpret spectrum anaiyzer dispisys adjacent photos nd Interference created wnen pus two Transmitters DUU-T0-DUU ins ~urmuiiuyru TIUUU iuutaa worst-case interference R created placing two transmitter antennas parallel about foot apart Model Aviation kind interference place two Intermoduisting transmitters 15 feet side controi transmitter 30 feet apart Notethatthe3iM slgnai hasntdimln Ished much AMA suggests 25to 30-foot separation Th cond 24 TM Through modern technology have shed whole new light model airplane world U-TURN spinner barstock spinner precisely made tested speeds excess 36000 rpm registered virtually no run-out vibration conjunction its Ultra-Light design eliminates engine damage associated spinners currently market Best have produced superior spinner very affordable price Available standard sizes both 2- 4-stroke engines Try spinner once will agree way turn TRU-TURN Two Popular Sizes Wing Span Length Wing Area Power 1/3 Scale 1/4 Scale 96in 72 300 sq 855 sq Q35 90- 1204/c 61 - 1082/c $16995 plus ship -$8 KIT $19995 pIsshp -$14 Partial Kit $11995 phe ship -$8 Plans & parts available 1/4 scale Cash A1ane Order Certified Check VISA MasterCard accepted Send SASE far infarnatian 712-943-4102 RIC EXTRAs RR#1 Box 28B Sergeant Bluff IA 51504 results Georges laboratory testing correlate very nicely tests Bob Aberle have running field running some own field tests provide data correlations lab tests George came up whole new test quickly easily separates good 31M third-order intermodulation performers bad ones recapitulate 31M phenomenon occurs two transmitters operating different frequency generate interference signal third frequency right another RC channel thing about 31M great concern interest much difference between control RF power transmitter 31M RF power must have order receiver remain safely under control very best todays RC receivers can live four dB advantage control signal worst receivers need full 25 dB advantage George Steiner has developed simple field test illustrates good bad system 1 Turn transmitter receiver verify good control 2 Place airplane ground engine oW 3 Walk 20 ft away test control response antenna extended 4 Have buddy stand right next turn transmitter RC channel walk away direction away airplane 5 If regain control plane before 20 ft away you have agood system 6 If dont recover control until 80 ft you have very bad receiver 7 regain control somewhere between 20 80 ft you have visual evidence good bad receivers 31M resistance really relative basis has interesting watch comments about Flight Station Game January 1987 issue roll magazine reached public just before 1986 Christmas holidays received about dozen letters telephone calls about FSGAME during Christmas holidays have access IBM computer clone tend lukewarm about FSGAME until have actually made work become quite enthusiastic thing sure play game will develop good understanding changes way will use RC will show up next few years because have included self-starting demonstrations combinations channels exist 1983 through 1987 1988 through 1990 1991 1995 cant think better way learn about details learning playing FSGAME have some stubborn hardheads club will insist have right continue using old channels 7208 7216 7224 etc after January 1988 game allows include group channels FSGAME will illustrate actu ally suffering criminal behaviorand Philosophically person has right become criminal Having right doesnt protect being punished crimes might get idea FSGAME important changes lurking future changes transmitters Wrong wrong wrong important changes will Continued page 126 26 Model Aviation Available Local Hobby Shop Soon DEALERS INQUIRIES WELCOMED ROMCO MEG INC 713 943-1867 PO Box 836 So Houston TX 77587 MAKE YOUR DAY FUNFLY SAFELY EXTRA 230 Newest Winning Full Size Aerobatic Airplane O3 50L213Aipha 15 $4995 Engine 049-051 50L202Ace High MKii $3195 Span 4OM Engine 049-051 123 Channeis 50L203Whizard 501227 4-120 $14995 SSnd $200 coropiStS catalog ACE fm Sr avalISbIS St daSh. Ord dirScf add $2 00 Handling Fo IIAWlgthmtoRIICO nnvilie 121 Radio Technique/Myers Continued page 26 receivers key future better receiver Irve said times since 1983 still true Some transmitters will have changebut almost receiver use today must replaced small number RC systems already satisfr requirements AMA Guidelines Among Kraft synthesized RF transmitter modules receivers Kraft KPR-8FD crystal-controlled fixed-channel receiver Circus PCM-9 ABS receiver Airtronics FM system includes 92245 receivercurrently available accessory part $6495 two low-priced imports imports Acoms FM system $150 Futaba Conquest PCM $250 may look above list say Ill buy right now jump right new narrow-band section spectrum Ill safe trash high end band quite manufacturers cooperate wont able buy crystals RC14 RCl6 RCl8 RC2O RC22 RC24 RC26 RC28 RC3O RC32 RC34 until about September 1987 leaving aside people already have Kraft SRF modules Lets say find way get lowband crystals can use during sport flying away AMA-sanctioned contests wont allowed use sanc tioned contests unless Contest Director de cides make some kind special arrangement Once again FSGAME will help assess problems such decision might create AMA rule book wont actually require narrow-band performance defined AMA Guidelines RC systems used low-band channels until 1988 Sowhat rule book doesnt try prevent using narrow-band equipment either automatically have AMA permission use narrow-band equipment ie narrow-band transmitters receivers Bn/W Blu/W R/W etc well RC38 through RC56 right now advantages narrow-band set will available right now January 1988 rolls around will have swap pair crystals unlikely retuning will necessary swap RC185 Blu/W RCl8 example Eventually radios RC 11 through RC6O will required narrow-band buy narrow-band system RC38 through RC56 today may establishing early claim use channel assuming club works assigned-channel basis Quite few clubs already wont surprise see lot doing have 50 channels work George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Midget Mustang/Reese Continued page 34 supply stores will soften remove glue Cut out parts Dremeljigsaw sharp X-Acto knife true up large sanding block cut out both sets wing ribs same time gluing two sheets wood together contact rubber cement separating parts soon cut out spray contact 126 Model Aviation NEW FLYBABY-BIPE COMBO Outstanding Precision Hand/machine-cut Kits Made USA FLYBABY $7950 BIPE $9500 COMBO $11000 Span 56 44 Weight 4-5 lbs Wing load 22 & 14 oz Engine 30-45 FS 25-40 TS field conversion 10 mm AEROPACER $8900 Sport-trainer Span 64 ht 5-7 lbs Wing load 19-25 oz Engine 45-65 FS 29-45 TS Span 54 ht 5-6 lbs Wing load 15 oz Engine 4565 FS 35-50 TS Add $450 postage handling direct sales Mich residents add 4% VISA Mastercard money order Oealer inquiry invited AERODROME MODELS LTD 2623 S Miller Rd Saginaw Ml 48603 517 781-3000 DH6O GIPSY MOTH$10900 COS COxBEN SUPER ACE 1/6 scale Light Weight tor 05 Elec 3 channel Radio or oie 015 2 cycle Engine 54 span Ole cut Machine cut Parts $3995 send SA5E 3rochure Add 5300 S end H coo Add $200 Calif Rae Add 6% Tax Master Card 916985-3549 Sat & Sun Pharia Modata PO 30$ 804 Foisom CA 85830
Edition: Model Aviation - 1987/04
Page Numbers: 24, 26, 126
George Ma Myers Receiver Controlinterferer Transmitter - 2OFeet ~i4-20to80 Feet 4-Very Good BOFeet Very Bad - George Steines quick field testfor receiver 31 M performance its synthesized test use anothertransmitteron RC channel RC5O represent what can produced mixture two transmitters other RC channeis such RC52 RC54 case LET ME introduce George P SteIner Sacra mento CA George member AMA Frequency Committee retired communica tions engineer well-equipped elec tronic toolsincluding personal spectrum analyzer George does RC repairs under name GSP George Steiner Products George has kept very busy past two years performing hundreds laboratory tests RC systems Frequency Commit tee interesting result testing has found test results match Aberle/ Myers field test results Bob have reporting Continued page 26 RC52 Transmitter Transmitter RC5O 31M Signs RC Channels Affected 9 48 50 5254 Heres interpret spectrum anaiyzer dispisys adjacent photos nd Interference created wnen pus two Transmitters DUU-T0-DUU ins ~urmuiiuyru TIUUU iuutaa worst-case interference R created placing two transmitter antennas parallel about foot apart Model Aviation kind interference place two Intermoduisting transmitters 15 feet side controi transmitter 30 feet apart Notethatthe3iM slgnai hasntdimln Ished much AMA suggests 25to 30-foot separation Th cond 24 TM Through modern technology have shed whole new light model airplane world U-TURN spinner barstock spinner precisely made tested speeds excess 36000 rpm registered virtually no run-out vibration conjunction its Ultra-Light design eliminates engine damage associated spinners currently market Best have produced superior spinner very affordable price Available standard sizes both 2- 4-stroke engines Try spinner once will agree way turn TRU-TURN Two Popular Sizes Wing Span Length Wing Area Power 1/3 Scale 1/4 Scale 96in 72 300 sq 855 sq Q35 90- 1204/c 61 - 1082/c $16995 plus ship -$8 KIT $19995 pIsshp -$14 Partial Kit $11995 phe ship -$8 Plans & parts available 1/4 scale Cash A1ane Order Certified Check VISA MasterCard accepted Send SASE far infarnatian 712-943-4102 RIC EXTRAs RR#1 Box 28B Sergeant Bluff IA 51504 results Georges laboratory testing correlate very nicely tests Bob Aberle have running field running some own field tests provide data correlations lab tests George came up whole new test quickly easily separates good 31M third-order intermodulation performers bad ones recapitulate 31M phenomenon occurs two transmitters operating different frequency generate interference signal third frequency right another RC channel thing about 31M great concern interest much difference between control RF power transmitter 31M RF power must have order receiver remain safely under control very best todays RC receivers can live four dB advantage control signal worst receivers need full 25 dB advantage George Steiner has developed simple field test illustrates good bad system 1 Turn transmitter receiver verify good control 2 Place airplane ground engine oW 3 Walk 20 ft away test control response antenna extended 4 Have buddy stand right next turn transmitter RC channel walk away direction away airplane 5 If regain control plane before 20 ft away you have agood system 6 If dont recover control until 80 ft you have very bad receiver 7 regain control somewhere between 20 80 ft you have visual evidence good bad receivers 31M resistance really relative basis has interesting watch comments about Flight Station Game January 1987 issue roll magazine reached public just before 1986 Christmas holidays received about dozen letters telephone calls about FSGAME during Christmas holidays have access IBM computer clone tend lukewarm about FSGAME until have actually made work become quite enthusiastic thing sure play game will develop good understanding changes way will use RC will show up next few years because have included self-starting demonstrations combinations channels exist 1983 through 1987 1988 through 1990 1991 1995 cant think better way learn about details learning playing FSGAME have some stubborn hardheads club will insist have right continue using old channels 7208 7216 7224 etc after January 1988 game allows include group channels FSGAME will illustrate actu ally suffering criminal behaviorand Philosophically person has right become criminal Having right doesnt protect being punished crimes might get idea FSGAME important changes lurking future changes transmitters Wrong wrong wrong important changes will Continued page 126 26 Model Aviation Available Local Hobby Shop Soon DEALERS INQUIRIES WELCOMED ROMCO MEG INC 713 943-1867 PO Box 836 So Houston TX 77587 MAKE YOUR DAY FUNFLY SAFELY EXTRA 230 Newest Winning Full Size Aerobatic Airplane O3 50L213Aipha 15 $4995 Engine 049-051 50L202Ace High MKii $3195 Span 4OM Engine 049-051 123 Channeis 50L203Whizard 501227 4-120 $14995 SSnd $200 coropiStS catalog ACE fm Sr avalISbIS St daSh. Ord dirScf add $2 00 Handling Fo IIAWlgthmtoRIICO nnvilie 121 Radio Technique/Myers Continued page 26 receivers key future better receiver Irve said times since 1983 still true Some transmitters will have changebut almost receiver use today must replaced small number RC systems already satisfr requirements AMA Guidelines Among Kraft synthesized RF transmitter modules receivers Kraft KPR-8FD crystal-controlled fixed-channel receiver Circus PCM-9 ABS receiver Airtronics FM system includes 92245 receivercurrently available accessory part $6495 two low-priced imports imports Acoms FM system $150 Futaba Conquest PCM $250 may look above list say Ill buy right now jump right new narrow-band section spectrum Ill safe trash high end band quite manufacturers cooperate wont able buy crystals RC14 RCl6 RCl8 RC2O RC22 RC24 RC26 RC28 RC3O RC32 RC34 until about September 1987 leaving aside people already have Kraft SRF modules Lets say find way get lowband crystals can use during sport flying away AMA-sanctioned contests wont allowed use sanc tioned contests unless Contest Director de cides make some kind special arrangement Once again FSGAME will help assess problems such decision might create AMA rule book wont actually require narrow-band performance defined AMA Guidelines RC systems used low-band channels until 1988 Sowhat rule book doesnt try prevent using narrow-band equipment either automatically have AMA permission use narrow-band equipment ie narrow-band transmitters receivers Bn/W Blu/W R/W etc well RC38 through RC56 right now advantages narrow-band set will available right now January 1988 rolls around will have swap pair crystals unlikely retuning will necessary swap RC185 Blu/W RCl8 example Eventually radios RC 11 through RC6O will required narrow-band buy narrow-band system RC38 through RC56 today may establishing early claim use channel assuming club works assigned-channel basis Quite few clubs already wont surprise see lot doing have 50 channels work George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Midget Mustang/Reese Continued page 34 supply stores will soften remove glue Cut out parts Dremeljigsaw sharp X-Acto knife true up large sanding block cut out both sets wing ribs same time gluing two sheets wood together contact rubber cement separating parts soon cut out spray contact 126 Model Aviation NEW FLYBABY-BIPE COMBO Outstanding Precision Hand/machine-cut Kits Made USA FLYBABY $7950 BIPE $9500 COMBO $11000 Span 56 44 Weight 4-5 lbs Wing load 22 & 14 oz Engine 30-45 FS 25-40 TS field conversion 10 mm AEROPACER $8900 Sport-trainer Span 64 ht 5-7 lbs Wing load 19-25 oz Engine 45-65 FS 29-45 TS Span 54 ht 5-6 lbs Wing load 15 oz Engine 4565 FS 35-50 TS Add $450 postage handling direct sales Mich residents add 4% VISA Mastercard money order Oealer inquiry invited AERODROME MODELS LTD 2623 S Miller Rd Saginaw Ml 48603 517 781-3000 DH6O GIPSY MOTH$10900 COS COxBEN SUPER ACE 1/6 scale Light Weight tor 05 Elec 3 channel Radio or oie 015 2 cycle Engine 54 span Ole cut Machine cut Parts $3995 send SA5E 3rochure Add 5300 S end H coo Add $200 Calif Rae Add 6% Tax Master Card 916985-3549 Sat & Sun Pharia Modata PO 30$ 804 Foisom CA 85830
Edition: Model Aviation - 1987/04
Page Numbers: 24, 26, 126
George Ma Myers Receiver Controlinterferer Transmitter - 2OFeet ~i4-20to80 Feet 4-Very Good BOFeet Very Bad - George Steines quick field testfor receiver 31 M performance its synthesized test use anothertransmitteron RC channel RC5O represent what can produced mixture two transmitters other RC channeis such RC52 RC54 case LET ME introduce George P SteIner Sacra mento CA George member AMA Frequency Committee retired communica tions engineer well-equipped elec tronic toolsincluding personal spectrum analyzer George does RC repairs under name GSP George Steiner Products George has kept very busy past two years performing hundreds laboratory tests RC systems Frequency Commit tee interesting result testing has found test results match Aberle/ Myers field test results Bob have reporting Continued page 26 RC52 Transmitter Transmitter RC5O 31M Signs RC Channels Affected 9 48 50 5254 Heres interpret spectrum anaiyzer dispisys adjacent photos nd Interference created wnen pus two Transmitters DUU-T0-DUU ins ~urmuiiuyru TIUUU iuutaa worst-case interference R created placing two transmitter antennas parallel about foot apart Model Aviation kind interference place two Intermoduisting transmitters 15 feet side controi transmitter 30 feet apart Notethatthe3iM slgnai hasntdimln Ished much AMA suggests 25to 30-foot separation Th cond 24 TM Through modern technology have shed whole new light model airplane world U-TURN spinner barstock spinner precisely made tested speeds excess 36000 rpm registered virtually no run-out vibration conjunction its Ultra-Light design eliminates engine damage associated spinners currently market Best have produced superior spinner very affordable price Available standard sizes both 2- 4-stroke engines Try spinner once will agree way turn TRU-TURN Two Popular Sizes Wing Span Length Wing Area Power 1/3 Scale 1/4 Scale 96in 72 300 sq 855 sq Q35 90- 1204/c 61 - 1082/c $16995 plus ship -$8 KIT $19995 pIsshp -$14 Partial Kit $11995 phe ship -$8 Plans & parts available 1/4 scale Cash A1ane Order Certified Check VISA MasterCard accepted Send SASE far infarnatian 712-943-4102 RIC EXTRAs RR#1 Box 28B Sergeant Bluff IA 51504 results Georges laboratory testing correlate very nicely tests Bob Aberle have running field running some own field tests provide data correlations lab tests George came up whole new test quickly easily separates good 31M third-order intermodulation performers bad ones recapitulate 31M phenomenon occurs two transmitters operating different frequency generate interference signal third frequency right another RC channel thing about 31M great concern interest much difference between control RF power transmitter 31M RF power must have order receiver remain safely under control very best todays RC receivers can live four dB advantage control signal worst receivers need full 25 dB advantage George Steiner has developed simple field test illustrates good bad system 1 Turn transmitter receiver verify good control 2 Place airplane ground engine oW 3 Walk 20 ft away test control response antenna extended 4 Have buddy stand right next turn transmitter RC channel walk away direction away airplane 5 If regain control plane before 20 ft away you have agood system 6 If dont recover control until 80 ft you have very bad receiver 7 regain control somewhere between 20 80 ft you have visual evidence good bad receivers 31M resistance really relative basis has interesting watch comments about Flight Station Game January 1987 issue roll magazine reached public just before 1986 Christmas holidays received about dozen letters telephone calls about FSGAME during Christmas holidays have access IBM computer clone tend lukewarm about FSGAME until have actually made work become quite enthusiastic thing sure play game will develop good understanding changes way will use RC will show up next few years because have included self-starting demonstrations combinations channels exist 1983 through 1987 1988 through 1990 1991 1995 cant think better way learn about details learning playing FSGAME have some stubborn hardheads club will insist have right continue using old channels 7208 7216 7224 etc after January 1988 game allows include group channels FSGAME will illustrate actu ally suffering criminal behaviorand Philosophically person has right become criminal Having right doesnt protect being punished crimes might get idea FSGAME important changes lurking future changes transmitters Wrong wrong wrong important changes will Continued page 126 26 Model Aviation Available Local Hobby Shop Soon DEALERS INQUIRIES WELCOMED ROMCO MEG INC 713 943-1867 PO Box 836 So Houston TX 77587 MAKE YOUR DAY FUNFLY SAFELY EXTRA 230 Newest Winning Full Size Aerobatic Airplane O3 50L213Aipha 15 $4995 Engine 049-051 50L202Ace High MKii $3195 Span 4OM Engine 049-051 123 Channeis 50L203Whizard 501227 4-120 $14995 SSnd $200 coropiStS catalog ACE fm Sr avalISbIS St daSh. Ord dirScf add $2 00 Handling Fo IIAWlgthmtoRIICO nnvilie 121 Radio Technique/Myers Continued page 26 receivers key future better receiver Irve said times since 1983 still true Some transmitters will have changebut almost receiver use today must replaced small number RC systems already satisfr requirements AMA Guidelines Among Kraft synthesized RF transmitter modules receivers Kraft KPR-8FD crystal-controlled fixed-channel receiver Circus PCM-9 ABS receiver Airtronics FM system includes 92245 receivercurrently available accessory part $6495 two low-priced imports imports Acoms FM system $150 Futaba Conquest PCM $250 may look above list say Ill buy right now jump right new narrow-band section spectrum Ill safe trash high end band quite manufacturers cooperate wont able buy crystals RC14 RCl6 RCl8 RC2O RC22 RC24 RC26 RC28 RC3O RC32 RC34 until about September 1987 leaving aside people already have Kraft SRF modules Lets say find way get lowband crystals can use during sport flying away AMA-sanctioned contests wont allowed use sanc tioned contests unless Contest Director de cides make some kind special arrangement Once again FSGAME will help assess problems such decision might create AMA rule book wont actually require narrow-band performance defined AMA Guidelines RC systems used low-band channels until 1988 Sowhat rule book doesnt try prevent using narrow-band equipment either automatically have AMA permission use narrow-band equipment ie narrow-band transmitters receivers Bn/W Blu/W R/W etc well RC38 through RC56 right now advantages narrow-band set will available right now January 1988 rolls around will have swap pair crystals unlikely retuning will necessary swap RC185 Blu/W RCl8 example Eventually radios RC 11 through RC6O will required narrow-band buy narrow-band system RC38 through RC56 today may establishing early claim use channel assuming club works assigned-channel basis Quite few clubs already wont surprise see lot doing have 50 channels work George M Myers 70 Froehlich Farm Rd Hicksville NY 11801 Midget Mustang/Reese Continued page 34 supply stores will soften remove glue Cut out parts Dremeljigsaw sharp X-Acto knife true up large sanding block cut out both sets wing ribs same time gluing two sheets wood together contact rubber cement separating parts soon cut out spray contact 126 Model Aviation NEW FLYBABY-BIPE COMBO Outstanding Precision Hand/machine-cut Kits Made USA FLYBABY $7950 BIPE $9500 COMBO $11000 Span 56 44 Weight 4-5 lbs Wing load 22 & 14 oz Engine 30-45 FS 25-40 TS field conversion 10 mm AEROPACER $8900 Sport-trainer Span 64 ht 5-7 lbs Wing load 19-25 oz Engine 45-65 FS 29-45 TS Span 54 ht 5-6 lbs Wing load 15 oz Engine 4565 FS 35-50 TS Add $450 postage handling direct sales Mich residents add 4% VISA Mastercard money order Oealer inquiry invited AERODROME MODELS LTD 2623 S Miller Rd Saginaw Ml 48603 517 781-3000 DH6O GIPSY MOTH$10900 COS COxBEN SUPER ACE 1/6 scale Light Weight tor 05 Elec 3 channel Radio or oie 015 2 cycle Engine 54 span Ole cut Machine cut Parts $3995 send SA5E 3rochure Add 5300 S end H coo Add $200 Calif Rae Add 6% Tax Master Card 916985-3549 Sat & Sun Pharia Modata PO 30$ 804 Foisom CA 85830