apache-labs.com

New from Apache Labs:

https://apache-labs.com/al-products/1064/ANAN-1K5-HF--6M-1500W-Linear-Amplifier-Preorder.html

Four antenna ports, LAN connectivity, Dual ART1k6 LDMOS, PS output, Noctua fans, RZ1ZR's display and priced well below the Mercury Lux for the first 50 preorders.

Tech specs show a 10W input option but it cannot be imported that way into the U.S. at the present time. However, the end user can replace the standard 13 dB input pad with a 3 dB pad from Ali Express. That will yield 1500W in one step from Hermes-class QRP transceivers.

For importation into the U.S., it will require FCC Certification. Their June, 2024 delivery forecast is overly optimistic for U.S. imports.

Paul, W9AC

Looks nice but I'd be wary of shelling out $1500 on something that might never materialise.

I'd be interested how Apache have implemented the control board. From the specs it appears the control board is at least compatible with Rz1ZR's latest version. He does a very good job with the software (I have a VKamp running his software) but his hardware implementation is Ho Hum with a bunch of cheap Chinese modules soldered to a back plane. Hopefully Apache have re-engineered this critical part of the amp.
FYI you can see more about the software at RZ1Zr.ru
The other question is if the amp is complete with power supply?

RobB wrote:I'd be interested how Apache have implemented the control board. From the specs it appears the control board is at least compatible with Rz1ZR's latest version. He does a very good job with the software (I have a VKamp running his software) but his hardware implementation is Ho Hum with a bunch of cheap Chinese modules soldered to a back plane. Hopefully Apache have re-engineered this critical part of the amp.
FYI you can see more about the software at RZ1Zr.ru
The other question is if the amp is complete with power supply?

- 100-250VAC input voltage in the specs and the photo of the backplane should be clear enough.
- no comment on the T/R- switching circuit. I think they will continue to use ordinary relays, no vacuum relays (ACOM) or PIN (Elecraft, RFkits)
- AL has a lot of experience with 100W pa stages, BUT

designing an amp running at 1.5k that is reliable is somehow - let's call it "adult themes". It is up to you if you want to be a beta- tester.

73 es gl

Volker
DL4ZBG
(running RFK2-S and ACOM 2000A - best of both worlds)

dl4zbg wrote:
Volker
DL4ZBG
(running RFK2-S and ACOM 2000A - best of both worlds)

running RFK2-S... a good joke... ...there were also beta testers who had the LDMOS blown up ...

Protection circuit with µC is too slow...

The rf concept is copied as always, will work, every now and then someone will cry out and change the LDMOS, as with almost all LDMOS PAs.