# Lothar of the Hill Peoples SDR Topology - amp\>filter or filter\>amp Roundup **URL:** \ **Category:** General\ **Created:** [October 5, 2023, 11:10pm UTC](https://community.airframes.io/t/lothar-of-the-hill-peoples-sdr-topology-amp-filter-or-filter-amp-roundup/122 "2023-10-05T23:10:54Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/letter_avatar_proxy/v4/letter/l/f17d59/32.png) [@Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/u/Lothar_ot_Hill_Peeps)\ **Post date:** [October 5, 2023, 11:10pm UTC](https://community.airframes.io/t/lothar-of-the-hill-peoples-sdr-topology-amp-filter-or-filter-amp-roundup/122/1 "2023-10-05T23:10:54Z")
Here is a work in progress on “what’s inside the stick”. I will be adding and expanding this to include stand-alone LNAs and other useful goodies. If you have a chance to open up any dongles not listed, please do send me the identifying marks on any SAW filters and amplifier chips. DM me with new info or corrections. ![sdr_info](https://community.airframes.io/uploads/default/original/1X/77afb770099a2bb5945d8ef16dbbc16ea599a411.png) ---
**Author:** ![Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/letter_avatar_proxy/v4/letter/l/f17d59/32.png) [@Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/u/Lothar_ot_Hill_Peeps)\ **Post date:** [January 24, 2024, 3:41am UTC](https://community.airframes.io/t/lothar-of-the-hill-peoples-sdr-topology-amp-filter-or-filter-amp-roundup/122/9 "2024-01-24T03:41:07Z")
Yet another update - R6 that includes the new Airplanes Live SDRs. [SDR and LNA Roundup Jan 2024 R6.pdf](https://community.airframes.io/uploads/short-url/ko5bVCFaK2PLVojg1PGnbWgBsNT.pdf) (434.5 KB) ---
**Author:** ![Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/letter_avatar_proxy/v4/letter/l/f17d59/32.png) [@Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/u/Lothar_ot_Hill_Peeps)\ **Post date:** [September 30, 2024, 3:37am UTC](https://community.airframes.io/t/lothar-of-the-hill-peoples-sdr-topology-amp-filter-or-filter-amp-roundup/122/10 "2024-09-30T03:37:43Z")
See Update R7 attached. [SDR and LNA Roundup Sept 2024 R7.pdf](https://community.airframes.io/uploads/short-url/qUL0eE6xGXyjcKLLJoYWMBcGhx.pdf) (435.1 KB) ---
**Author:** ![Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/letter_avatar_proxy/v4/letter/l/f17d59/32.png) [@Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/u/Lothar_ot_Hill_Peeps)\ **Post date:** [December 27, 2024, 10:24pm UTC](https://community.airframes.io/t/lothar-of-the-hill-peoples-sdr-topology-amp-filter-or-filter-amp-roundup/122/11 "2024-12-27T22:24:30Z")
See Update R8 attached! Happy New Year! [SDR and LNA Roundup DEC 2024 R8.pdf](https://community.airframes.io/uploads/short-url/Aa2vtOTQVSKtDiDlfZLBmOMyw5.pdf) (40.1 KB) ---
**Author:** ![Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/letter_avatar_proxy/v4/letter/l/f17d59/32.png) [@Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/u/Lothar_ot_Hill_Peeps)\ **Post date:** [November 18, 2025, 11:54pm UTC](https://community.airframes.io/t/lothar-of-the-hill-peoples-sdr-topology-amp-filter-or-filter-amp-roundup/122/12 "2025-11-18T23:54:52Z")
R10 Nov 2025 attached. [SDR and LNA Roundup Nov 2025 R10.pdf](https://community.airframes.io/uploads/short-url/fcVIg6qTaSpNg7Utoq9UTKdbOke.pdf) (437.2 KB) ---
**Author:** ![Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/letter_avatar_proxy/v4/letter/l/f17d59/32.png) [@Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/u/Lothar_ot_Hill_Peeps)\ **Post date:** [December 3, 2025, 10:34pm UTC](https://community.airframes.io/t/lothar-of-the-hill-peoples-sdr-topology-amp-filter-or-filter-amp-roundup/122/13 "2025-12-03T22:34:03Z")
R11 Dec 2025 Attached [SDR and LNA Roundup Dec 2025 R11.pdf](https://community.airframes.io/uploads/short-url/lqqXd9shFLDqLZcg2jOhtLB3HE2.pdf) (433.7 KB) ---
**Author:** ![Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/letter_avatar_proxy/v4/letter/l/f17d59/32.png) [@Lothar\_ot\_Hill\_Peeps](https://community.airframes.io/u/Lothar_ot_Hill_Peeps)\ **Post date:** [December 4, 2025, 3:01am UTC](https://community.airframes.io/t/lothar-of-the-hill-peoples-sdr-topology-amp-filter-or-filter-amp-roundup/122/14 "2025-12-04T03:01:40Z")
SORRY! The above PDF was clipped. See R11 here. [SDR and LNA Roundup Dec 2025 R11.pdf](https://community.airframes.io/uploads/short-url/adynPuLORtHzSwZB5vAVHSXsE1y.pdf) (433.3 KB)