Portishead Radio :

 

this recording is from 1971, first in AM with reduced carrier, then clearer in SSB (rb)
the voice mirror from 1973 (rb)
here a later version, no mentioning of Portishead! (Willi Passmann)
the standard telegraph identification of GKB (with DAL in the background) (Andy Stumpf, 1987)

 

a card from the 'British Post Office', undetailed, used for many purposes (Frank Schüttig, 1974)
a friendly letter confirming reception to Rudy van Dalen (1980)
the QSL with card and letter from 1986 (rb), for their service to aircraft in flight
the first report of their point-to-point service is QSLed (Lars Lundström, 1987)
detailed card and letter (Frank Schüttig, 1990)
nice QSL verification from the last year of operation (Vladimir Rozhkov, 2000)
commemorative folder for 80 years of service, and cross band amateur traffic (rb, 2000)

 

------------------------------------------------------------

 

Callsigns:
GKA *
GKB *
GKC *
GKD *
GKE *
GKF *
GKG *
GKH *
GKI *
GKJ *
GKK *
GKL *
GKM *
GKO *
GKP *
GKQ *
GKS *
GKT **
GKU **
GKV **
GKW **
GKX **
GKY *
GPA *
GPB *
GPD *

 

Frequencies Voice:
3482
3747
4360
4372
4384
4432
4492
4521
4807
4810
5610
5670
5690
6556
6634
6734
6854
7870
8170
8181
8185
8722
8764
8773
8782
8794
8809
8960
10291
10722
10884
10960
11306
11363
12133
12168
13077
13080
13092
13146
13158
13164
13170
13396
13415
13430
13865
13895
14890
14898
15964
16003
16273
16318
16370
16443
17245
17257
17272
17284
17293
17308
17335
17350
17359
17405
17935
18210
19510
19755
19761
20065
20665
21765
22015
22711
22729
22735
22753
22774
22780
22813
23142
23210
23412
24655
25109
26148
27218

 

Frequencies Morse Telegraphy:
4251.5
4256
4267.9
4274
4286
4314.5
4316
4317.5
4326.5
4336
6368.9
6369
8454.9
8516
8545.9
8546
8552
8559.5
8569
8581.6
8591.5
8604
8606
8684
12714
12788.5
12790
12791.5
12815
12822
12835.4
12858
12871.5
13006.5
13019.8
16918.8
16954.4
16974.6
17072
17092
17098
17098.4
17113
17130
17136.8
17151.2
17167.5
22407.3
22432
22448.7
22467
22494
22503
22525.5
22527
22528.5
22545
22657.8
22682.5
25400

 

Frequencies Radioteletype:
2643.5
3337.5
3517
3542.7
3615.7
4211
4213.5
4214
4216
4216.5
4345
5379.5
6315
6319.5
6321.5
6324.5
6391.5
6402
6495
6500
7483
8417
8422.5
8425.5
8426
8429.5
8497
8706
9118.5
12135
12580
12591.5
12593
12603
12607
12770
13072
13360.7
13567.5
13568
13570
16807.5
16820.5
16824
16827
16840
16883
17138
17426
22377
22388
22393
22397
22405
22409
22900
22973
25390

 

Systems used:
50 Bd
SITOR