POST AND TELEGRAPH DEPARTMENT.

Radio Record, Volume III, Issue 9, 13 September 1929, Page 28

POST AND TELEGRAPH DEPARTMENT.

PARTICULARS IN RESPECT. OF INTERFERENCE TO RADIO — BROADCAST RECEPTION EXPERIENCED BY ; To NAMC secescceceecsaccceceuceeteeeceuss The Radio Inspector, AGAVESE gece eee s cc cccceesccscscvcceseses P. & T. Laboratory, eee cece renee ene eeeeeeereeeeone Hope Gibbons’ Bldgs, «nate e eee ewer eevee se esececcere : Wellington. Telephone No. (if ccccessceseces 1. When did you first notice the disturbance , referred to? Pee eneresoceenms atc eovuevenetese 2. Does the interference occur during the daytime? eeenoeepeceeeeoeseeesaeeesoaorvoe ese ® 3. Is it continuous or intermittent? @ovoepereeesoet os over eons oeeaee 4, At what hours is it most severe? EEE TTTTCTCTTTTTITET TT TT TTT TT Te 5. Is the disturbance a hum, buzz, squeal, hiss, tapping, crackling, frying, or roaring noise? ee eeeoeceeeeseaneoeteaese se oe 6. How many other listeners in your vicinity are having the same trouble? TrTererererery rrr re rir rrr Ti (Give addresses below, together with particulars of set used in each case, i.e, crystal set or valve set. ) ACAVESS we ce cece ccc eveeeee as : | 7. Type and make of your radio receiver. pec roccacesccencccccccsceee 8. Has the following test been made? If so, withewhat result? ches ccc ear eacccccdcccccceont With antenna and ground leads disconnected, and these terminals shorted by a piece of wire, is the disturbance experienced when the receiver is operated in the-usual manner? 9. Can the interference be tuned to a maximum ‘on your receiver? If so, near what broadcasting station’s wave? PETES TTELTTESTL TTT EET ee 10, Is your aerial in close proximity to, or does it run parallel to, (a-) telephone leads, (b) power lines? , *e@ e@oeeesoaecaeeeeacoeeeeceeeoeee 11. How far is your receiving station from the nearest tram, route? . Coco cesovccedevcccecesbione 12, Do you use (a) "B" eliminator? occ eececees eee ceeeecceeee oe (b) Battery’ charger? weer ecvccccecccsececcccene e (Please state type and make.) coceevcccees do ctensecsseces 13. When will there be someone available at your address to operate set‘(a) During day-time. ee cecerccccccccsccccccecees (b) During evening. ce eeceeeeeeeees seeeceevcces * And further remarks. : ee errr ‘eee esecccccce